B. An addition of 400 J of GPE and a loss of 250 J of thermal energy
What is law of conservation of energy?
The law of conservation of energy states that energy can neither be created nor destroyed but can be converted from one form to another.
From first law of thermodynamics;
ΔU = Q + W
where;
ΔU is change in internal energy of a systemQ is the heat added to the systemW is the work done on the systemThus, the scenario that will increase the total energy of a system is "An addition of 400 J of GPE and a loss of 250 J of thermal energy".
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What is the process used to separate the mixture of sand and water?
Answer:
water filtration
Explanation:
In the case of a mixture of sand and water filtration can used to separate the two. This requires a sieve that does not allow any of the particles of sand to pass through.
Justify the importance of solar energy as an alternative source of energy!
Answer:
The main advantage is that it is a renewable, clean source of electricity. Solar power is also scalable. ... When it's used on a small scale, extra electricity can be stored in a battery or fed back into the electricity grid. Overall, the sun gives off far more energy than we'll ever need.Explanation:
A volleyball player spikes a volleyball over the net. The mass of the volleyball is 0.3 kg. The ball accelerates at 800 m/s2. What is the net force that accelerates the ball?
The magnitude of net force which is required to accelerate the ball is 240 Newtons.
What is the net force?The net force is the vector sum of all the forces which are acting on a particle or an object. The net force is a single force which replaces the effect of the original forces which are acting on the particle's motion.
F = m × a
where, F = net force,
m = mass of the object,
a = acceleration of the object
F = 0.3 × 800
F = 240N
Therefore, the net force which is required to accelerate the ball is 240 Newtons.
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our best data about the surface topography of venus has come from:
The best data about the surface topography of Venus has come from various missions and instruments sent by different space agencies. The first spacecraft to provide information about Venus was NASA's Mariner 2, which made a flyby in 1962.
However, it was the Soviet Venera missions that provided the most detailed information about the planet's surface in the 1970s and 1980s. The Venera probes used radar to map the surface, revealing that Venus has vast volcanic plains, impact craters, and mountain ranges. Later missions, such as NASA's Magellan spacecraft in the 1990s, provided even more detailed maps of Venus' surface topography using advanced radar imaging techniques.
With these missions, scientists have been able to study the geology and morphology of Venus, including its thick atmosphere, which has made it difficult to observe the surface with visible light. Overall, the data collected from these missions has greatly improved our understanding of Venus and its unique topography.
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FAILURE OF THE PRODUCT Instructions 1. Select THREE from everyday below items from the list and discuss the way this item can potentially fail (list minimum THREE failures). Justify your answer by considering Load Strength graph and what can be done to prevent those failures. -Ball Pen -Room Key - Blender
The three product which can be potentially fail considering Load Strength graph and precautionary measure to prevent failure are as below;
Ball Pen:
1. Ink Leakage: One potential failure of a ball pen is ink leakage. This can occur due to poor sealing between the ink reservoir and the ballpoint mechanism. Ink leakage can result in messy hands, stained documents, and reduced functionality of the pen. To prevent this failure, manufacturers can improve the quality control process to ensure proper sealing and use high-quality materials for the pen's components.
2. Ballpoint Jamming: Another failure is ballpoint jamming, where the ball gets stuck and prevents smooth writing. This can be caused by a buildup of dried ink or debris inside the pen's mechanism. To prevent ballpoint jamming, regular cleaning and maintenance of the pen can be recommended. Additionally, manufacturers can design the pen with features that facilitate easy cleaning or provide instructions on how to clear any blockages.
3. Weak Barrel Construction: The barrel of the pen may also be prone to failure if it is weak or brittle. Excessive pressure or rough handling can lead to cracks or breakage, rendering the pen unusable. To prevent this, manufacturers can use durable materials for the pen barrel, such as sturdy plastics or reinforced metal, and perform quality checks to ensure structural integrity.
Room Key:
1. Keycard Malfunction: A potential failure of a room key is a malfunction in its electronic components. This can result in the keycard being unreadable by the door lock system, preventing access to the room. To prevent this failure, regular maintenance and replacement of keycard readers can be implemented. Additionally, guests should be advised to keep their keycards away from magnets and electronic devices that can interfere with the card's functionality.
2. Magnetic Strip Damage: Another failure can occur if the magnetic strip on the keycard gets damaged or demagnetized. This can happen due to exposure to magnetic fields or physical damage. To prevent this failure, keycards can be made more durable with protective coatings or alternative technologies such as RFID. Guests should also be educated on proper handling and storage of keycards to avoid damage.
3. Battery Drain: Some room keys use batteries to power their electronic components. A failure can occur if the battery drains, leading to an inactive keycard. To prevent this, low-power consumption designs can be implemented, and regular battery checks or replacements can be carried out by hotel staff. Guests should be informed about the importance of returning the keycard to the front desk for recycling or proper disposal to ensure the battery is replaced as needed.
Blender:
1. Motor Burnout: One potential failure of a blender is motor burnout due to prolonged use or overloading. Continuous operation at high speeds or attempting to blend hard or frozen ingredients beyond the blender's capacity can cause the motor to overheat and fail. To prevent motor burnout, manufacturers can provide clear guidelines on the maximum load capacity and recommended usage durations. Automatic thermal protection mechanisms can also be incorporated to shut off the blender if it detects excessive heat.
2. Blade Jamming: Another failure can occur if food particles or ingredients get jammed between the blender's blades, preventing them from spinning freely. This can happen if the blender is not properly cleaned or if ingredients are not adequately prepared before blending. To prevent blade jamming, users should be advised to clean the blender thoroughly after each use and ensure that ingredients are cut into manageable sizes. Manufacturers can also design blades with accessible mechanisms for easy cleaning or provide cleaning tools.
3. Leakage: A failure in a blender can also manifest as leakage. This can happen if the blender jar or its sealing components are damaged or improperly assembled. Liquid or food can leak out during blending, resulting in a messy and potentially unsafe situation. To prevent leakage, manufacturers should ensure proper sealing mechanisms and use high-quality materials for the blender jar and lid. Regular inspection of the sealing components can be advised,
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Calculate how much radiative energy will be produced by the accretion disk as a result of your fall into the black hole.
As an AI language model, I cannot give a specific answer without more information about the size and mass of the black hole and the rate of accretion. However, I can provide some general information about the process. When matter falls towards a black hole, it forms an accretion disk that can reach extremely high temperatures and emit large amounts of radiation, including X-rays and gamma rays. The amount of radiative energy produced by the accretion disk depends on the rate of accretion and the efficiency of converting gravitational potential energy into radiation. Some of this energy can be observed by telescopes and used to study the properties of black holes.
To calculate the radiative energy produced by the accretion disk as a result of your fall into the black hole, you will need to follow these steps:
Step 1: Determine the mass of the object falling into the black hole (M_obj).
Assuming the object is a human, the average mass of a person is about 70 kg.
Step 2: Calculate the gravitational potential energy (GPE) of the object falling into the black hole.
GPE = GM_objM_BH/R, where G is the gravitational constant (6.674 × 10^-11 m^3 kg^-1 s^-2), M_BH is the mass of the black hole, and R is the Schwarzschild radius (event horizon) of the black hole.
Step 3: Determine the efficiency of the accretion disk (η).
The efficiency of the accretion disk varies depending on the specific black hole and the environment, but a typical efficiency is about 10% (η = 0.1).
Step 4: Calculate the radiative energy produced by the accretion disk (E_rad).
E_rad = η × GPE
However, it is important to note that the values of M_BH and R depend on the specific black hole in question. Without this information, we cannot calculate an exact value for the radiative energy produced.
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When matter falls towards a black hole, it forms an accretion disk that can reach extremely high temperatures and emit large amounts of radiation, including X-rays and gamma rays.
The amount of radiative energy produced by the accretion disk depends on the rate of accretion and the efficiency of converting gravitational potential energy into radiation. Some of this energy can be observed by telescopes and used to study the properties of black holes.
To calculate the radiative energy produced by the accretion disk as a result of your fall into the black hole, you will need to follow these steps:
Step 1: Determine the mass of the object falling into the black hole (M_obj).
Assuming the object is a human, the average mass of a person is about 70 kg.
Step 2: Calculate the gravitational potential energy (GPE) of the object falling into the black hole.
GPE = GM_objM_BH/R, where G is the gravitational constant (6.674 × 10^-11 m^3 kg^-1 s^-2), M_BH is the mass of the black hole, and R is the Schwarzschild radius (event horizon) of the black hole.
Step 3: Determine the efficiency of the accretion disk (η).
The efficiency of the accretion disk varies depending on the specific black hole and the environment, but a typical efficiency is about 10% (η = 0.1).
Step 4: Calculate the radiative energy produced by the accretion disk (E_rad).
E_rad = η × GPE
However, it is important to note that the values of M_BH and R depend on the specific black hole in question. Without this information, we cannot calculate an exact value for the radiative energy produced.
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Hess's law states that:
A. Energy cannot be created nor destroyed, it can only change form.
B. The enthalpy change when 1 mole of a substance undergoes complete combustion under standard conditions is equal to molar masses of the compounds.
C. When the enthalpy changes under standard conditions, 1 mole of a substance is formed from its elements.
D. The overall enthalpy change for a reaction is independent of the route the reaction takes.
Answer:
D. The overall enthalpy change for a reaction is independent of the route the reaction takes.
Answer: Hess's law states that the overall enthalpy change for a reaction is independent of the route the reaction takes. Option D is correct.
It is given Hess's law.
It is required to state the Hess's law.
What is Hess's law ?Thermochemical equations can be manipulated to give the data chemical reactions. We find exactly how much energy will be absorbed or released by the reaction because we may face various explosions.
There are mainly two ways to calculate ΔH of any reaction. First If the reaction has ΔH then the reverse of the reaction will have opposite ΔH and the second is if double the ΔH of the substances, double the ΔH.
Therefore Hess's law states that the overall enthalpy change for a reaction is independent of the route the reaction takes.
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A 2500 kg car traveling to the north is slowed down uniformly from an initial velocity of 20 m/s by a 5620 N braking force acting opposite the car's motion. How far does the car move during 2.5 s? *
Answer:
the distance traveled by the car is 42.98 m.
Explanation:
Given;
mass of the car, m = 2500 kg
initial velocity of the car, u = 20 m/s
the braking force applied to the car, f = 5620 N
time of motion of the car, t = 2.5 s
The decelaration of the car is calculated as follows;
-F = ma
a = -F/m
a = -5620 / 2500
a = -2.248 m/s²
The distance traveled by the car is calculated as follows;
s = ut + ¹/₂at²
s = (20 x 2.5) + 0.5(-2.248)(2.5²)
s = 50 - 7.025
s = 42.98 m
Therefore, the distance traveled by the car is 42.98 m.
What is different about parasitism compared to the other biological relationships such as mutualism, predation, competition, and commensalism?
Answer: parasitic organisms cause harm to other organisms.
Answer:
parasitic organisms cause harm to other organisms.
Explanation:
a ball is dropped from 2 m above the ground. according to newton's third law, the force of the ball on the earth is equal in magnitude to the gravitational force of the earth on the ball. what happens? (ignore the motion of the earth about the sun.)
When the ball is dropped from a height of 2 meters above the ground, it experiences a downward gravitational force exerted by the earth.
This force causes the ball to accelerate towards the earth. According to Newton's third law of motion, every action has an equal and opposite reaction. Therefore, as the ball exerts a force on the earth due to gravity, the earth also exerts an equal and opposite force on the ball. This force is commonly known as the normal force.
As the ball falls towards the ground, it gains momentum due to the force of gravity. When it finally hits the ground, it stops moving and experiences a sudden change in momentum. This sudden change in momentum causes a temporary deformation in the ball and the ground.
Thus, Newton's third law helps explain how the force of gravity between the ball and the earth interacts with each other, and how the ball experiences an equal and opposite reaction force from the earth due to gravity.
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a tennis player swings her 1000 g racket with a speed of 8 m/s. she hits a 60 g tennis ball that was approaching her at a speed of 24 m/s. the ball rebounds at 37 m/s. how does this compare to the ball's weight? favg / wball
Think about how the tennis ball moves. Let's assume that the tennis ball's velocity is positive while it is moving toward the racket and negative when it is moving away from the racket.
Tennis ball mass, m, is 60 grammes, or 0.060 kilogrammes.
Tennis ball's initial speed before being struck by the racquet is 20 m/s, or v0.
v = the tennis ball's final speed after being struck by the racket = -39 m/s
P = modification of the ball's momentum
The ball's change in momentum is described as
ΔP = m (v - v₀)
Adding the aforementioned values
ΔP = (0.060) (- 39 - 20) (- 39 - 20)
ΔP = - 3.54 kgm/s
thus, the change in momentum's magnitude is 3.54 kg/s.
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a single-phase motor draws a current of 20a at 0.8pf laggign when operated from a 220 v, 60 hz source. find the value of the capacitance accross the motor that will raise the power factor to 0.9 lagging
The capacitance across the motor must be 86.87 f to increase the power factor to 0.9 lagging.
A single-phase motor is what?An electric rotating machine with the capacity to transform electrical energy into mechanical energy is known as a single-phase motor. It functions using a single-phase power source. They have hot and neutral wiring, respectively. Their supply voltages fluctuate in unison and their power can exceed 3Kw.
I1 = 20A, f = 50 Hz
cosϕ1 = 0.75 ⇒ ϕ1 = 41.41∘ ⇒ tanϕ1 = 0.88
cosϕ2 = 0.9 ⇒ ϕ2 = 25.84∘ ⇒ tanϕ2 = 0.48
Ic = I1 cosϕ1 (tanϕ1 − tanϕ2)
= (20) (0.75) (0.88 – 0.48) = 6 A
C = Ie/2πfv
C = 6/2π × 20 × 220
C = 86.87∪f
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Provide an example of a product you believe is elastic and
explain your answer. Provide an example of a product you believe is
inelastic and explain your answer.
Example of an elastic product: Smartphone
Explanation: A smartphone is an example of an elastic product. When the price of smartphones decreases, consumers tend to buy more of them, and when the price increases, consumers tend to buy fewer.
Example of an inelastic product: Prescription medication
Explanation: Prescription medication is an example of an inelastic product. Inelastic goods are those for which changes in price have little impact on the quantity demanded.
Example of an elastic product: SmartphoneExplanation: A smartphone is an example of an elastic product. When the price of smartphones decreases, consumers tend to buy more of them, and when the price increases, consumers tend to buy fewer. This is because smartphones are considered non-essential goods with substitutes available in the market. If the price of a particular smartphone model increases, consumers have the option to choose a different brand or model that offers similar features at a lower price. Similarly, if the price of smartphones decreases, consumers may be more willing to upgrade their existing devices or purchase additional smartphones as they become more affordable. The demand for smartphones is responsive to changes in price, making it an elastic product.Example of an inelastic product: Prescription medicationExplanation: Prescription medication is an example of an inelastic product. Inelastic goods are those for which changes in price have little impact on the quantity demanded. Prescription medication is often essential for maintaining health and treating medical conditions, and there may be limited substitutes available. When the price of prescription medication increases, consumers may still continue to purchase it regardless of the price change, as their health and well-being depend on it. The demand for prescription medication is relatively unresponsive to changes in price because it is a necessity and does not have easily accessible alternatives. People are generally willing to pay higher prices for medications they need, even if it means reducing spending on other goods and services. Thus, prescription medication is considered an inelastic product.For more such questions on elastic and inelastic product, click on:
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Convert 1.5 days to s
Convert 5.2 ft to m
Convert 3600 s to hr
Convert 10.2 m to ft
Convert 305 g to kg
Convert 180 pm to m
Convert 73 kg to g
Convert 1,366 s to min
Convert 86,000 m to km
Please answer these and SHOW ALL WORK, please please please show ALL WORK. Need this done right now please help! Thank you so much!
Although this computation is essentially based on a mathematical formalism or equation that integrates components, conversion factors are frequently employed to convert one type of measure into another.
A chemical equation is what?The term "chemical equation" is frequently used in everyday chemistry. French chemist Jean Beguin established the first empirical formula in 1615. A chemical equation merely refers to a premise of a molecular reaction's process using symbols and figures.
1.5 days = 129600 second
5.2 ft = 1.58496 meters
3600 s = 1 hour
10.2 m = 33 ft 5.57 in
305 g = 0.305 Kg
180 pm = 0.00000000018 m
73 kg = 73000 g
1,366 s = 22.76666667 min
86,000 m= 86 km
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5. What are protons and neutrons made up of?
Answer:
Protons and neutrons are composed of two types: up quarks and down quarks. Each up quark has a charge of +2/3. Each down quark has a charge of -1/3. The sum of the charges of quarks that make up a nuclear particle determines its electrical charge.
Answer:
Quarks
Explanation:
When we break down protons and neutrons, scientists named the building blocks of atoms "quarks". Quarks are considered in the basic basic elementary particles of the universe.
of space limitations, the tubes should not exceed 6 ft in length. determine the configuration of a heat exchanger to accomplish these needs. the average film condensation heat transfer coefficient on the outside of the tube can be assumed to have a value of 8000 w/m2 k.
Precisely, water has to absorb 4,184 Joules of heat for the temperature of one kilogram of water to increase 1°C. Conduction equations can be used to model heat transfer between a fluid and a solid wall.
The linear temperature profile of a stationary layer of liquid clinging to the wall is considered to be the sole cause of the temperature differential between the fluid and the wall. Heat is transmitted between hot and cold fluids through a solid wall in a heat exchanger. Process streams or separate sources of heat, like fluids or sources of refrigeration, may be the fluids. Corrosion, deposits of reaction products, or organic growths can all eventually decrease heat transfer. Fouling resistances provide a quantitative explanation for these phenomena. combining various film coefficients to create an overall heat transfer coefficient.
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what features of the milky way's appearance in our sky led scientists to conclude that it is much wider than it is thick?
The Milky Way is the slender ribbon of many resolvable stars. unique aspects of the milky way's appearance in our sky prompted astronomers to infer that it is far broader than it is thick.
The Milky Way is the galaxy that contains our solar system, and the term refers to how the galaxy appears to us on Earth: as a hazy strip of light in the night sky made up of stars that are too close together to be seen individually. The title "Milky Way" comes from the Latin route lactea, which is a translation of the Greek (galaktikos kklos), which means "milky circle." From Earth, the Milky Way appears as a band because its disk-shaped structure is seen from within. In 1610, Galileo Galilei used his telescope to break the band of light into individual stars for the first time. Most astronomers believed that the Milky Way held all of the universe's stars until the early 1920s.
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You see I am having issues with my Cart and think a thunder strike has burnt all my spark plugs and a banana has gotten stuck some where
Answer:
umm??????? i dont understand
Explanation:
if the car’s speed decreases at a constant rate from 63 mi/h to 30 mi/h in 3.0 s , what is the magnitude of its acceleration, assuming that it continues to move in a straight line?
The magnitude of the car's acceleration is approximately 39,603 mi/h². The magnitude of acceleration can be determined using the formula:
acceleration = (final velocity - initial velocity) / time
Given that the initial velocity is 63 mi/h, the final velocity is 30 mi/h, and the time is 3.0 s, we can substitute these values into the formula:
acceleration = (30 mi/h - 63 mi/h) / 3.0 s
Simplifying this expression, we get:
acceleration = (-33 mi/h) / 3.0 s
Now, let's convert the units so that the time is in seconds:
acceleration = (-33 mi/h) / (3.0 s / 3600 s/h)
Simplifying further, we get:
acceleration = (-33 mi/h) / (0.0008333 h)
Finally, we divide the two values to find the acceleration:
acceleration = -39,603 mi/h²
Therefore, the magnitude of the car's acceleration is approximately 39,603 mi/h².
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if distance of travel increases and time remains same what happens to the speed
Answer: By increasing speed over a fixed period of time, you increase
the distance you travel in that period of time. If you drive 20 mph
for an hour, you go 20 miles. If you drive 30 mph for that same
hour, you go 30 miles. Just like you knew you would.
Explanation:
Air is a solution of 78% nitrogen, 21% oxygen and 1% other gases. Which part of this solution is the solvent?
From Ulaanbaatar, the helicopter flew 500 km north, then turned east 250 km, and then south 500 km. Where will he land?
Answer:
The helicopter will land 250 km east of Ulaanbaatar. Is there anything else you would like to know?
A cyclist races around a circular track at the constant speed of 20 m/s. The radius of the track is 50 m. The acceleration of the cyclist is
A. zero.
B. 8 m/s2, toward the center of the track.
C. 10 m/s2, downward.
D. 20 m/s2, in the direction of travel.
The correct option is A. zero.
Acceleration is a vector quantity that represents the rate of change of an object's velocity with respect to time. It is a physical quantity that measures how much the speed and/or direction of an object changes per unit time.Acceleration and velocity in circular motion A cyclist races around a circular track at a constant speed of 20 m/s. As the cyclist is moving in a circle, it has a velocity vector that is constantly changing in direction. As a result, the cyclist has an acceleration.The acceleration of an object in circular motion is always directed towards the center of the circle. Because the cyclist is moving in a circle, the direction of the cyclist's acceleration is towards the center of the circle.The magnitude of the acceleration of an object moving in a circle is given by the following equation:a = v2/r where
:a is acceleration is velocity is the radius of the circle For the given cyclist, the speed is given as 20 m/s and the radius of the circular track is 50 m. Using the equation, we geta = (20 m/s)2/50 m= 400/50= 8 m/s2Thus, the acceleration of the cyclist is 8 m/s2, directed towards the center of the circular track.
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1(a)suppose that 0.1 kg of liquid copper is super-cooled to by 250K where it is allowed to nucleate and solidify adiabatically(no heat is lost to the surroundings), calculate how much copper will solidify until until the temperature recalesces to its melting point of 1356K. The specific heats of of solid and liquid copper in J/K.mol are： C_Ps = 22.64 + 5.86×10-3T = 31.4, C_Pl=31.4)
where T is in degrees Kelvin. The heat of fusion of copper is 13.2 kJ/mol and its molecular weight is 0.0635 kg/mol
(b) How much supercooling would be necessary in order to solidify the entire sample adiabatically?
(a) Approximately 1.574 moles of copper will solidify adiabatically.
(b) A supercooling of 1106 K is necessary to solidify the entire sample adiabatically.
(a) To calculate the amount of copper that will solidify, we need to determine the heat transferred during the process. Since the solidification is adiabatic, there is no heat transfer to the surroundings. The heat transferred is equal to the heat of fusion, which is given as 13.2 kJ/mol.
The number of moles of copper can be calculated using the molecular weight:
Number of moles = mass / molecular weight = 0.1 kg / 0.0635 kg/mol ≈ 1.574 moles
Therefore, the amount of copper that will solidify is 1.574 moles.
(b) In order to solidify the entire sample adiabatically, we need to calculate the super-cooling required for the temperature to reach the melting point of 1356 K.
The change in temperature required is:
ΔT = Melting point - Super-cooling temperature
ΔT = 1356 K - 250 K = 1106 K
Thus, a super-cooling of 1106 K would be necessary to solidify the entire sample adiabatically.
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find the components of the velocity vector in the northerly and westerly directions.
The components of the velocity vector in the northerly and westerly directions are approximately 77.46 km/h and 91.89 km/h respectively.
The problem is to determine the components of the velocity vector in the northerly and westerly directions. Let's say we have the velocity vector V. And, the angle between V and the west is θ.
Then, we can say that the component of V in the westerly direction is given by V_w= V cosθSimilarly, if the angle between V and the north is θ, then the component of V in the northerly direction is given by V_n= V sinθ.
Now, let's see how we can apply these formulas to solve the problem.
We can start by sketching the velocity vector V on the x-y plane, with the tail of the vector at the origin. \((V = 120 km/h, θ = 40°)\) .
Then, we can find the components of V in the northerly and westerly directions as follows: \(V_n= V sinθ= 120 sin40° ≈ 77.46 km/h\) \(V_w= V cosθ= 120 cos40° ≈ 91.89 km/h\).
Thus, the components of the velocity vector in the northerly and westerly directions are approximately 77.46 km/h and 91.89 km/h respectively.
To summarize the steps involved, we first sketched the velocity vector V on the x-y plane. Then, we used the formulas V_w= V cosθ and V_n= V sinθ to find the components of V in the westerly and northerly directions. Finally, we substituted the given values of V and θ to obtain the numerical values of the components.
In conclusion, the velocity vector can be broken down into its components in the northerly and westerly directions using the formulas V_w= V cosθ and V_n= V sinθ. We can then substitute the given values of V and θ to obtain the numerical values of the components.
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On a good day and with a strong tailwind, Mr. H's Yugo can average a speed of 24.7 m/h. Ignoring stop lights and other influences
that slow him down, how much time (in hours) does it take Mr. H to drive his Yugo the 11.9 miles down the two-lane highway to town?
Using the formula for time, which is distance divided by speed, it would take Mr. H approximately 0.48 hours to drive the 11.9 miles to town at a speed of 24.7 miles/hour, presuming a strong tailwind and no stops.
Explanation:To find the time it takes for Mr. H to drive to town, we can use the formula time = distance/speed. In this case, the distance is 11.9 miles and the speed is 24.7 miles/hour. Therefore, the time it would take Mr. H to drive to town is 11.9 miles / 24.7 miles/hour = 0.48 hours approximately. This means that on a day with a strong tailwind, and ignoring stop lights and other influences, it would take Mr. H about 0.48 hours to drive his Yugo the 11.9 miles to down the two-lane highway to town.
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What is the difference between a wave and a particle?.
Answer:
See below.
Explanation:
The difference between these two is that a wave is a disturbance of some quantity in space or intermediate while a particle has a definite mass concentrated on a small area.
Carbon is the cornerstone of organic compounds, the compounds necessary for life.
Answer:
Carbon is the cornerstone of most biologically produced organic compounds such as proteins, carbohydrates, fats and DNA. All of these compounds contain, in addition to carbon, many other elements, including hydrogen, nitrogen and oxygen.
Explanation:
how does a competitive inhibitor affect the normal values for KM and Vmax? Why?? 5. What is the ki? What does this say about the strength of the inhibitor.
A competitive inhibitor increases the apparent value of KM but does not affect Vmax. The strength of the inhibitor can be determined by its Ki value, with a lower Ki indicating a stronger inhibitor.
A competitive inhibitor binds to the active site of an enzyme, which prevents the substrate from binding. This results in an increase in the apparent value of KM (the concentration of substrate required to reach half of Vmax) because the substrate has to compete with the inhibitor for the active site. However, the Vmax remains unchanged because the enzyme can still reach its maximum velocity when the substrate concentration is high enough to overcome the inhibition.
Ki is the dissociation constant for the inhibitor-enzyme complex. It represents the concentration of the inhibitor required to occupy half of the enzyme's active sites. A lower value of Ki indicates a stronger binding between the inhibitor and the enzyme, and therefore a more potent inhibitor.
Regarding the Ki, it represents the inhibition constant, which is a measure of the inhibitor's binding affinity to the enzyme. A lower Ki value indicates a stronger inhibitor, as it requires a lower concentration of the inhibitor to effectively bind to the enzyme and reduce its activity.
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A sled drops 50 meters in height on a hill. The mass of the rider and sled is 70 kg and the sled is going 10 m/s at the bottom of the hill. What is the efficiency of energy conversion from potential to kinetic?
Answer:
Efficiency = 10.2 %
Explanation:
Given the following data;
Mass = 70 kg
Height = 50 m
Velocity = 10 m/s
We know that acceleration due to gravity is equal to 9.8 m/s².
To find the efficiency of energy conversion from potential to kinetic;
First of all, we would determine the potential energy;
P.E = mgh
P.E = 70 * 9.8 * 50
P.E = 34300 J
For the kinetic energy;
K.E = ½mv²
K.E = ½ * 70 * 10²
K.E = 35 * 100
K.E = 3500
Therefore, Input energy, I = 34300 J
Output energy, O = 3500 J
Next, we find the efficiency;
Efficiency = O/I * 100
Substituting into the formula, we have;
Efficiency = 3500/34300 * 100
Efficiency = 0.1020 * 100
Efficiency = 10.2 %