Assuming that the relationship between spring compression and height is quadratic, how far will the ball go at the highest setting, which compresses the spring 3 cm ?
Answers
Assuming that the relationship between spring compression and height is quadratic, 2.25m far will the ball go at the highest setting, compresses the spring 3 cm
How do you calculate a compression spring's solid height?The solid height, h1, of an unground spring is (n+1)d, where n is the number of coils and d is the wire diameter (including platings and coating) in inches. The height, h2, of ground but not squared springs is (n-1)d. The solid height, h3, of ground and squared springs is (n-0.75)d
When a spring is compressed, the potential energy is stored in the mechanical bonds between atoms, which may be thought of as little springs. The spring as a whole cannot decompress until it breaks, but little portions may when they fall off. The majority of the stored energy is used to decompress each little component.
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Related Questions
What is always true about the total amount of oxygen and carbon dioxide in the test tube?
Answers
state coulomb's law mathematically
Answers
Coulomb's law is express as:
\(\begin{gathered} F=k\frac{q_1q_2}{r^2} \\ \text{ where} \\ k\text{ is Coulomb's constant} \\ q_1\text{ and }q_2\text{ are the charges} \\ r\text{ is the distance between charges} \end{gathered}\)Satellite Motion: Suppose our sun had 4 times its present mass but the earth orbited it at the same distance as it presently does. What would be the length of the year on the earth under those conditions
Answers
If the sun had four times its current mass and the Earth orbited it at the same distance, the length of a year on Earth would remain the same.
The length of a year is determined by the time it takes for a planet to complete one orbit around its star. In this scenario, if the sun's mass increased fourfold while the Earth maintained its current distance from the sun, the gravitational force acting on the Earth would also increase. However, the Earth's orbital speed would also increase to compensate for the stronger gravitational pull.
According to Kepler's third law of planetary motion, the square of the orbital period (T) is proportional to the cube of the average distance between the planet and the sun (r). Mathematically, it can be expressed as T^2 = k*r^3, where k is a constant.
Since the average distance (r) remains the same in this scenario, the only variable that affects the orbital period (T) is the mass of the sun. However, the increase in the sun's mass is counteracted by the increase in the Earth's orbital speed, resulting in the same length of a year on Earth as it currently is.
Therefore, the length of a year on Earth would remain the same, despite the increase in the sun's mass, assuming the Earth's distance from the sun remains unchanged.
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Which moon phase come after a new moon and before a first quarter moon?
Answers
Answer: Waxing crescent moon
Explanation: The moon phase that comes after the new moon is waxing crescent and before the first quarter.
Dark matter is inferred to exist because it explains the abundance of helium in the universe today. we can observe its gravitational influence on visible matter. it explains how the expansion of the universe can be accelerating. we see lots of dark patches in the sky
Answers
we can observe its gravitational influence on visible matter.
Dark matter is a term used in astrophysics to refer to matter that corresponds to approximately 80% of the matter in the universe.
Dark matter is related to the motion of galaxies because visible matter makes up only a small part of the cluster and the galaxies show signs of being composed mainly of a halo of dark matter concentrated in their center.
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You wish to start a fire by reflecting sunlight from a mirror onto some paper under a pile of wood. Which would be the best choice for the typeof mirror? (a) flat (b) concave (c) convex
Answers
You wish to start a fire by reflecting sunlight from a mirror onto some paper under a pile of wood which means the best choice of the type of mirror for this operation is a concave one and is denoted as option B.
What is Concave mirror?This type of mirror usually has a reflective surface that is curved inward and away from the light source. They also reflect light inward to one focal point which is done by reflecting all the rays parallel to its axis and converge them at a single point.
For fire to occur, then we need a large concentration of light rays which will help reflect all the sunlight from a mirror onto some paper under a pile of wood thereby causing the fire.
This is therefore the reason why concave mirror was chosen as the most appropriate choice.
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joe and bill throw identical balls vertically upward joe throws his ball with an initial sppeed twice as high as bill. the maximum of joes ball will be
Answers
If Bill's ball reaches a maximum height of h, then Joe's ball will reach a maximum height of 2h.
Assuming that air resistance is negligible, the maximum height of a ball thrown vertically upwards is given by the formula:
\(h = (v^2)/(2g)\)
where h is the maximum height, v is the initial Speed, and g is the acceleration due to gravity.
Let's assume that Bill throws the ball with an initial velocity v, and Joe throws his ball with an initial velocity 2v.
Then, the maximum height of Bill's ball is:
\(h = (v^2)/(2g)\)
And the maximum height of Joe's ball is:
\(h = ((2v)^2)/(2g) = (4v^2)/(2g) = 2(v^2)/(g)\)
So the maximum height of Joe's ball is twice the maximum height of Bill's ball.
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Unpolarised light of intensity I is incident on a system of two polarizers
Unpolarized light of intensity I is incident on a system of two polarizes, A followed by B. The intensity of emergent light is I/2. If a third polarizer C is placed between A and B, the intensity of emergent light is reduced to I/3. The angle between the polarizers A and C is θ
Answers
When unpolarized light of intensity I passes through a system of two polarizers A and B, with an angle θ between A and C, and a third polarizer C placed between A and B, the intensity of the emergent light is reduced to I/3.
The given scenario involves unpolarized light with an initial intensity of I passing through two polarizers, A and B. When the emergent light passes through this system, its intensity reduces to I/2.
However, if a third polarizer, C, is introduced between A and B, the intensity of the emergent light further decreases to I/3. The angle between polarizers A and C is denoted as θ.
The interaction of polarizers with unpolarized light is due to their ability to transmit light waves oscillating in a specific plane while blocking those oscillating perpendicular to that plane.
When unpolarized light passes through the first polarizer A, it allows only a portion of the light oscillating in a specific plane to pass through, reducing the intensity to I/2.
When polarizer C is inserted between A and B, it further restricts the passage of light oscillating in the plane perpendicular to its transmission axis. This leads to a decrease in the intensity of emergent light to I/3.
The angle θ between A and C influences the extent to which light is transmitted through this intermediate polarizer C.
Overall, the polarizers A and B, in combination with the intermediate polarizer C, work together to reduce the intensity of unpolarized light incident on the system. The specific angle θ between polarizers A and C determines the resulting intensity of emergent light.
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a ball is thrown horizontally from the top of a building 100 m high. the ball strikes the ground at a point 200 m horizontally away from and below the point of release. what is the speed of the ball just before it strikes the ground?
Answers
V= 50.95m/s is the speed of the ball just before it strikes the ground for the given question
Given that
Height , h= 100 m
Horizontal distance , x = 200 m
Given that , the ball is thrown horizontally , therefore the initial vertical velocity will be zero.
In vertical direction :
vy^2=Uy^2+2gh
vy^2=0^2+2*9.81x100
Assume that g=9.81m/s^2
Thus
Vy^2=1962
Vy=√(1962) m/s
Vy=44.29 m/s
We also know that
Vy=Uy+gxt
44.29=9.81 x t
t=44.29/9.81
t=4.514s
In horizontal direction
x=Ux*t
Ux=200/4.514
Ux=44.30 m/s
Thus the resultant velocity
V= √ Vy^2+Ux^2
V=√44.29+44.30
V=50.95m/s
Therefore Velocity will be 50.95m/s
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Mary Jo went on riding her horse through the trails. Her pace was 8 km/hr. She left at 8:30 am and got back to the barn at 9:00 am. How far did she go?
Question 4 options:
16 m/s
4 m/s
4 km
16 km
Answers
Answer:
4km
Explanation:
Distance=speed x time
Knowing this we know the time and speed
so it is 8 x .5= D
And 8 x .5 =4
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Which planet would show the least variation in its distance from the sun?
O A. One with a large mass
OB. One with a small mass
C. One with a highly elliptical orbit
OD. One with a nearly circular orbit
Answers
Kepler's laws demonstrate how gravity affects orbits. They pertain to any orbiting object, such as planets around the Sun and moons.
The Sun is what?Our planet is subject to incredibly significant impacts from the sun: By photosynthesis, it supports seasons, climate, ocean currents, weather, and plant life. Life on Earth just wouldn't live without the heat and light provided by the sun. The solar system's centre is where the sun is located. The sun is a sizable ball of hot gases that spins and glows.
A gas is what?A liquid will expand in order to fill a closed container while inside of it. The air you inhale is an example of a gas. When applied to matter, the word "gas" can also refer to the state.
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20 points + Brainliest. Please help!
A piston is made of a gas-enclosed cylinder with a moveable top. For the system of the piston to be thermodynamic equilibrium, which set of condition must hold true?
A. Heat is added to the system, but never leaves it
B. Work is done by the system not on it.
C. Temperature and pressure are uniform throughout the system
D. Heat transfer and volume changes both occur very quickly
Answers
The temperature must go up if the piston remains stationary.
Explanation:
1
.
The temperature must go up if the piston remains stationary
If the piston remains stationary, we know that
Δ
V
, the change in volume of the system, is necessarily zero, i.e.
Δ
V
=
0
.
This implies that the system does no work on the environment as it does not expand.
.A 9.0-V battery is connected to a bulb whose resistance is 3.0 Ω .
Part A
How many electrons leave the battery per minute?
Express your answer using two significant figures.
Answers
The number of electrons leaving the battery per minute is approximately 1.13 × 10^20.
To determine the number of electrons leaving the battery per minute, we can use the equation:
I = V / R
The current, represented by I, is determined by the voltage, denoted as V, divided by the resistance, symbolized by R.
V = 9.0 V
R = 3.0 Ω
Substituting the values into the equation:
I = 9.0 V / 3.0 Ω = 3.0 A
The current represents the rate of flow of charge, and each electron carries a charge of 1.6 × 10^-19 C. Therefore, the number of electrons leaving the battery per minute can be calculated using the equation:
Number of electrons = I * (1 C / (1.6 × 10^-19 C)) * (60 s / 1 min)
Substituting the values:
Number of electrons = 3.0 A * (1 C / (1.6 × 10^-19 C)) * (60 s / 1 min) ≈ 1.13 × 10^20 electrons
Hence, the number of electrons leaving the battery per minute is approximately 1.13 × 10^20.
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As a 4-10 solar mass star leaves the main sequence on its way to becoming a red supergiant, its luminosity:____.
Answers
As a 4-10 solar mass star leaves the main sequence on its way to becoming a red supergiant, its luminosity: remains roughly constant.
A common unit of mass used in astronomy is the solar mass (M), which is around 2 1030 kg. It is frequently used to denote the masses of black holes, galaxies, stellar clusters, nebulae, and other objects. Its mass is comparable to that of the Sun.
A solar mass is the fundamental unit of mass used by astronomers. It makes more sense to talk about such cosmic objects in terms of solar masses rather than a much smaller measure, such as kilos, because the majority of things in space are enormous and heavy, such as stars, galaxies, and black holes.
When a moderately big star, ranging in size from 8 to 40 solar masses, runs out of hydrogen shells around the core heat up sufficiently to start fusion.n fuel, it evolves off the main sequence and switches to fusing helium in its core, resulting in the formation of a red supergiant. This causes the star's radius to increase, which lowers the star's temperature.
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In order to generate electricity from mechanical energy, one essential element needed to
transform the energy into electrical energy is
A.an insulator
B.a magnet or a magnetic field
C. a plastic sphere
D. a light bulb
Answers
B: q magnet or a magnetic field
what is the resistance of a lamp that is connected to 120- volt circuit and draws 1.5 A of current
Answers
The resistance of the lamp is 80 ohms.
To calculate the resistance of a lamp connected to a circuit, you can use Ohm's Law, which states that resistance (R) is equal to voltage (V) divided by current (I). In this case, the voltage is 120 volts, and the current is 1.5 amperes.
Using the formula R = V / I, we can substitute the given values:
R = 120 V / 1.5 A
Performing the calculation:
R = 80 ohms
Therefore, the resistance of the lamp is 80 ohms.
This calculation demonstrates that the resistance of the lamp can be determined by dividing the voltage across the lamp by the current flowing through it. In this case, with a voltage of 120 volts and a current of 1.5 A, the resistance is found to be 80 ohms.
The resistance value is crucial in understanding the behavior of the lamp in an electrical circuit. It helps determine the power dissipation and the impact on the circuit's overall performance. By manipulating the resistance, it is possible to control the brightness of the lamp and regulate the flow of current through it.
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in the reference frame of the ladder, what is the time delay between when the front door closes and when the back door closes?
Answers
The time delay between when the front door closes and when the back door closes in the reference frame of the ladder is zero.
In the reference frame of the ladder, the front and back doors are at rest relative to each other. As a result, there is no relative motion between the two doors. According to the principles of special relativity, time dilation occurs when objects are in relative motion. However, since there is no relative motion between the doors, there is no time dilation effect. Therefore, the time delay between when the front door closes and when the back door closes is zero.
When we consider the reference frame of the ladder, we are essentially looking at the situation from the perspective of an observer who is stationary relative to the ladder. In this frame, the ladder is at rest, and both the front and back doors are at rest with respect to the ladder.
Since there is no motion between the doors, there is no time delay between their closing. From the perspective of the ladder, the two events of the front door closing and the back door closing happen simultaneously.
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Examples of energy conversion in daily life
Answers
Answer:
Energy conversion, also termed as energy transformation, is the process of changing one form of energy into another. Energy conversion occurs everywhere and every minute of the day. There are numerous forms of energy like thermal energy, electrical energy, nuclear energy, electromagnetic energy, mechanical energy, chemical energy, sound energy, etc. On the other hand, the term Energy Transformation is used when energy changes forms from one form to another. Whether the energy is transferred or transformed, the total amount of energy doesn’t change and this is known as the Law of Conservation of Energy.
Explanation:
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In a science experiment showing the splitting of water into Oxygen and hydrogen, two inverted test tubes of water were placed over the site of the reaction. (see the pic) How can you tell which one was catching the oxygen and which one was catching the hydrogen?
A. The hydrogen is a positive ion and will be located close to the negative terminal of the battery.
B. The oxygen is a negative ion which will be located next to the negative terminal of the battery.
C. There are 2 hydrogen atoms for every oxygen atom. The hydrogen will take up more space and is pushing the water lower in the test tube.
D. The hydrogen, being a smaller atom, will take up less space than the oxygen. It will push the water down less.
Answers
Answer:
Option C
Explanation:
Answer C is the correct option. water can be written as H₂O, which means that there are 2 Hydrogen atoms for every oxygen atom, therefore it will occupy more space than oxygen and push more. there is also one more possibility, if the splitting takes place in Hoffman's Voltameter then the Hydrogen will be close to the cathode as hydrogen is positive. Otherwise, option C is correct answer. Hope this Helps you!
Fill in the blank. Light is transmitted through a material by a process of absorption and re-emission. This means (1) __________ and the speed of light have a (2) __________ relationship.
Answers
(1) photons, (2) inverse. Light is transmitted through a material by a process of absorption and re-emission.
This means that photons and the speed of light have an inverse relationship. This is because the process of absorption and re-emission of photons by an object reduces the speed of light. When light passes through a material, the photons in the light are absorbed by the atoms in the material. This causes the energy of the photons to be transferred to the atoms, and as a result, the speed of light is reduced.
the correct answer to fill in the blank is "photons" and "inverse" as they are the words that complete the sentence.
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He nurse educator is demonstrating percussing the seventh right intercostal space at the midclavicular line over the liver. which sound should the students expect to hear?
Answers
The right upper quadrant of the body contains the liver, which would produce a dull percussion noise.
What is midclavicular line?
The midclavicular line is one of the surface reference lines used in the surface anatomy of the thorax.
Midway through the clavicle's body, a parasagittal vertical plane pierces the bone. While the lateral section of the clavicle is situated near to the highest point of the shoulder joint, the head (medial aspect) lies just lateral to the jugular notch of the sternum, a depression in the superior area of the sternal manubrium (the acromioclavicular joint).
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A space shuttle orbits earth at a speed of 21,000 km/hr how far will it travel in 5 hours
Answers
Answer:
105,000km or about 65,244mi
Explanation:
21,000km/hr*5hr=105,000km
or ~65,244mi
good luck
The space shuttle will travel a distance of 105,000 kilometers in 5 hours.
What is space shuttles speed?The speed of a space shuttle can vary depending on a number of factors, such as its altitude, its direction of travel, and the amount of thrust provided by its engines. However, the average speed of a space shuttle during orbital flight is approximately 28,000 kilometers per hour (17,500 miles per hour). At this speed, a space shuttle can complete one orbit of the Earth in about 90 minutes.
The space shuttle's speed is 21,000 km/hr. In 5 hours, it will travel a distance of:
Distance = Speed x Time
Distance = 21,000 km/hr x 5 hr
Distance = 105,000 km
Therefore, the space shuttle will travel a distance of 105,000 kilometers in 5 hours.
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An airplane traveled 300 km northeast in 2.5 hours. Find the velocity of the plane.
Answers
Answer: 120 km per hour.
Explanation: 300/2.5 = 120.
help plz The sum of all chemical reactions that take place within an organism is known as ______________. *
Answers
Answer:
Metabolism
Explanation:
metabolism is the sum of all chemical reactions that take place within an organism
Answer:
Metabolism
Explanation:
Which building material would provide the best surface for viewing a reflection?
Answers
Answer:
it is A fffgfhdshhsdsggsgssggsdggedgdgegggeeegeegegehe
A 6.0 cm candle is 30.0 cm from a concave mirror that has a focal length
of 11 cm. What is the distance of the image from the mirror?
7 points
0
.09 cm
17 cm
.06 cm
O
20 cm
Answers
Answer:
23 cm from the mirror
Explanation:
How far will you travel if you fly at 100 miles per hour for 2 hours and 30 minutes?
Answers
If you fly at 100 miles per hour for a time of 2 hours and 30 minutes you will be a: 250 miles far
The formula and procedure we will use to solve this exercise is:
x = v * t
Where:
x = distancet = timev = velocityInformation about the problem:
v = 100 miles/ht = 2,5 h x=?Applying the distance formula we have that:
x = v * t
x= 100 miles/h * 2,5 h
x = 250 miles
What is velocity?It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).
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the minimum allowable number of 120-volt, 20-ampere, 2-wire lighting branch circuits required for a residence 90 feet by 60 feet are:
Answers
The minimum allowable number of lighting branch circuits required for a residence 90 feet by 60 feet is 9.
How to calculate allowable number?To determine the minimum allowable number of lighting branch circuits required for a residence 90 feet by 60 feet, use the National Electrical Code (NEC) guidelines.
Using these guidelines, calculate the minimum allowable number of lighting branch circuits as follows:
Calculate the total wattage of the lighting load:
Assume 3 watts per square foot for general lighting:
90 ft x 60 ft = 5,400 sq ft
5,400 sq ft x 3 watts/sq ft = 16,200 watts
Add 50 watts for each fixed appliance:
Assume 4 appliances (refrigerator, stove, oven, dishwasher)
4 x 50 watts = 200 watts
Total wattage = 16,200 watts + 200 watts = 16,400 watts
Calculate the total amperage of the lighting load:
Total amperage = total wattage / voltage = 16,400 watts / 120 volts = 136.67 amperes
Calculate the minimum number of circuits required:
Divide the total amperage by the maximum allowable load per circuit:
136.67 amperes / 16 amperes = 8.54 (round up to 9)
Therefore, the minimum allowable number of lighting branch circuits required for a residence 90 feet by 60 feet is 9.
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A paved blacktop parking lot was built on what was
once a soil-covered field. This area will now
experience increased runoff when rain occurs because
the paved parking lot has
A) less capillarity B) less permeability
C) greater infiltration D) greater porosity
Answers
Answer:
The answer is B. less permeability.
Explanation:
An automobile cooling system holds 16 l of water. the specific heat of water is 4186 j/kg⋅c∘. How much heat does it absorb if its temperature rises from 17C to 87C?
Answers
The amount of heat that the water absorbs in cooling system of the automobile is 4688320 Joules.
The water holding capacity of the cooling system of the automobile s 16L.
The density of water is 1000Kg/m³. The specific heat of water is 4.186 J/KgC°.
The temperature of the water rises to 87°C from 17°C.
Now, the amount of heat that the water absorbs is,
Q = mcT
Where,
Q is the heat absorbed,
m is the mass of the water,
c is the specific heat of water,
T is the change in temperature of water.
Putting values,
Q = 1000 x 16 x 4.186 x 70
Q = 4688320 Joules.
So, the amount of heat absorbed is 4688320 Joules.
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