In this circuit, when the switch is in position c, the capacitor is not connected to the circuit and therefore is uncharged. When the switch is flipped to position a, the capacitor starts to charge up to the same potential difference as the battery, which is 9 V. This charging process takes 12 ms.
When the switch is flipped to position b, the capacitor is now connected in parallel with the battery, so the potential difference across the capacitor remains at 9 V. This is because the capacitor is now acting as a voltage source, supplying the same potential difference as the battery.
Finally, when the switch is brought back to position c, the potential difference across the capacitor remains at 9 V because it is still connected in parallel with the battery.
Therefore, the final potential difference across the capacitor is 9 V.
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mercury is a fluid with a density of 13 600 kg/m3. What pressure in pascals is exerted on an object under0.76 meters of mercury
The pressure exerted on an object under 0.76 meters of mercury is 101,292.8 Pascals
Pressure is defined as force exerted per unit area.
P = F/A
Where:
F = force
A = area
In this case the force is the gravitational force or weight.
w = mg
where m = mass of the substance
Since mass is equal to density times volume:
m = ρ . V
Hence,
P = mgh/A = ρgh
Where:
ρ = density of the substance.
The parameters in the problem are:
ρ = density of mercury = 13,600 kg/m³
h = 0.76 meters
g = 9.8 m/s²
The pressure is:
P = 13,600 x 9.8 x 0.76
= 101,292.8 Pascals
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A superconducting solenoid is meant to generate a magnetic field of 15.0 T. If the solenoid winding has 1900 turns/m, what current is required? Answer in kA.
To generate a magnetic field of 15.0 T in a superconducting solenoid with a winding of 1900 turns/m, a current of approximately X.XX kA is required.
To determine the required current for the superconducting solenoid, we can use Ampere's law, which relates the magnetic field (B) generated by a solenoid to the current (I) flowing through it. The formula is given by:
B = μ₀ * n * I
Where:
B = Magnetic field (15.0 T)
μ₀ = Permeability of free space (4π × 10⁻⁷ T·m/A)
n = Number of turns per unit length (1900 turns/m)
I = Current (to be determined)
Rearranging the equation to solve for the current (I), we have:
I = B / (μ₀ * n)
Plugging in the given values:
I = 15.0 T / (4π × 10⁻⁷ T·m/A * 1900 turns/m)
Simplifying:
I = 15.0 / (4π × 10⁻⁷ * 1900) A
I ≈ 2.46 × 10⁶ A
Converting the current to kiloamperes:
I ≈ 2.46 × 10³ kA
Therefore, the required current for the superconducting solenoid to generate a magnetic field of 15.0 T with a winding of 1900 turns/m is approximately 2.46 kA.
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A local AM radio station broadcasts at a frequency of 697 kHz.Calculate the wavelength at which they are broadcasting.Wavelength = ( ??? )m(1 kHz = 103 sec -1)
The wavelength of the broadcasted wave from the radio station is found to be 430m.
The broadcasting frequency of the radio station is 697 KHz. The relation between the frequency, wavelength and the speed of the wave is given as,
speed of wave = wavelength x frequency
C = λν
We can take the speed of the wave to be same as that f the speed of light to solve this problem.
Now, putting all the values,
3 x 10⁸ = 697 x 1000 x λ
λ = 430 m.
So, the wavelength of the broadcasted wave is 430m.
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Hello, my name it anna I have a question it
Which example describes an adaptation of a blueberry plant in the summer?
Answer -Buds begin to form.-The leaves turn red.-The plant is dormant-Berries and leaves are fully grown. So what it the answer it is science
The correct answer is: Berries and leaves are fully grown.
An adaptation is a trait that helps an organism survive in its environment. In the summer, blueberry plants need to grow their berries and leaves to produce food and survive. Therefore, the adaptation of the blueberry plant in the summer is that the berries and leaves are fully grown.
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♥️ \(\large{\textcolor{red}{\underline{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
If the radius of Earth were one half what it is now, and the mass were the same, what would be the value of g?
Answer:
4 times what it is now.
Explanation:
g=G(M/r^2)
G is constant, so ignore.
We have (1M/0.5r^2), or 4.
Answer:
4g
Explanation:
the equation of g (field gravity)
g = G M/R²
because G (Contant of Gravitasion) and M (Mass of earth) same, them
g2/g1 = R1²/R2²
g1 = g now
g2 = g which the value we looking for
g2/g = 1/(1/2)²
g2/g = 1/(1/4)
g2/g = 4
g2 = 4g
the gulf stream appears to be slowing down in velocity. what is thought to be a main driving force for this?
The main driving force thought to be behind the slowing of the Gulf Stream is believed to be climate change. As the atmosphere and oceans warm, the Gulf Stream is losing heat to the atmosphere.
What is the Gulf Stream ?The Gulf Stream is a powerful ocean current that originates in the Gulf of Mexico and flows northward along the eastern coast of the United States. It is part of the North Atlantic gyre, a system of circulating ocean currents. The Gulf Stream is an important part of the global conveyor belt, a system that helps regulate the ocean's climate by transporting warm tropical waters to cooler regions of the world. The Gulf Stream is so powerful that it is able to move more water than all of the world's rivers combined. It transports more than 100 million cubic meters of water per second and has a maximum speed of up to 5.6 km per hour.
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According to the Law of Conservation of angular Momentum
a- Moon orbits fastest when it's farthest from Earth
b- Moon orbits slower when it's near Earth
c- It depends on the position of the Sun
d- Moon orbits faster when it's near Earth
e- Moon orbits around Earth at constant rate
Answer:
The answer is b
Explanation:
What statement best describes what happens when a pitcher throws a baseball with different amounts of force?
A.The mass of the baseball never changes so the more force in the pitchers arm, the higher the acceleration of the baseball before it leaves the pitcher's hand.
B.The mass of the baseball never changes and therefore neither does the acceleration of the baseball.
C.The mass of the baseball never changes so the more force in the pitchers arm, the lower the acceleration of the baseball before it leaves the pitcher's hand.
D.Baseballs do not accelerate as they go through the air.
Newton's second law allows us to find that the correct answer is:
A) The mass of the baseball never changes so the more force in the pitchers arm, the higher the acceleration of the baseball before it leaves the pitcher's hand.
Newton's second law gives a relationship between force and the product of mass and acceleration of the body
F = m a
Where F is the force, m the mass and the acceleration of the body. The bold indicate vectors
The baseball ball is a solid body that has a fixed mass, therefore the pitcher uses different forces in the arm, the acceleration must change proportionally, as the force increases, the acceleration must increase (fastball).
Let's review the different claims
A) true. These statements are in accordance with Newton's second law
B) False. If the force changes any of the other two parameters must change
C) false. Force and acceleration are proportional
D) False. When the ball is in the air it is subjected to the acceleration of gravity
With Newton's second law we find that the correct answer is:
A) The mass of the baseball never changes so the more force in the pitchers arm, the higher the acceleration of the baseball before it leaves the pitcher's hand.
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A golf ball and a ping pong ball are dropped in a vacuum chamber. When they have fallen halfway down, they have the same a) speed
b) potential energy c) kinetic energy d) momentum e) all of the above
In a vacuum chamber, both the golf ball and the ping pong ball experience the same acceleration due to gravity, which is about 9.81 m/s² on Earth.
As there is no air resistance in a vacuum chamber, the only force acting on the balls is gravity. When the balls have fallen halfway down the chamber, they will have the same:
a) Speed: Since they experience the same acceleration, they reach the same speed while falling.
b) Potential energy: Both balls will have lost half of their initial potential energy as they fall halfway down the chamber. Their potential energy depends on their mass, height, and gravity (PE = mgh), and although their masses are different, their heights are the same at the halfway point.
However, they will not have the same:
c) Kinetic energy: Since kinetic energy depends on mass and velocity (KE = 1/2mv²), the golf ball will have more kinetic energy due to its larger mass.
d) Momentum: Momentum depends on mass and velocity (p = mv), so the golf ball will have more momentum due to its larger mass. In summary, the golf ball and ping pong ball will have the same speed and potential energy when they fall halfway down the vacuum chamber, but they will not have the same kinetic energy or momentum.
The force that prevails in a space when no matter is present, or when there is a perfect vacuum, is known as absolute pressure. The starting point for measurements of absolute pressure is this absolute zero. The best example of an absolute referenced pressure is the measurement of barometric pressure. The absolute pressure inside the chamber can be estimated by subtracting the ambient pressure from the vacuum gauge reading. The chamber's absolute pressure is determined by subtracting the vacuum gauge measurement from atmospheric pressure.
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diagram for terrestial weather
The correct answer of terrestial weather:
The solar insolation in the visible and infrared regions of the solar electromagnetic spectrum is much more than the energy that space weather occurrences release into the troposphere and stratosphere. Despite claims to the contrary, there may be some connection between the Earth's climate and the 11-year sunspot cycle. There is no proof of this. For instance, it has frequently been suggested that the Maunder minimum, a 70-year period almost devoid of sunspots, is correlated to a cooler climate, but these correlations have vanished after further research. Changes in cosmic ray flux are hypothesized to affect how much cloud formation occurs.
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State all the facts and information within the picture.
Pyrite Stone:
Pyrite, also known as fool's gold, is a mineral composed of iron and sulfur. It has a metallic luster and a brassy yellow color. Found in sedimentary rocks and hydrothermal veins, pyrite has a hardness of 6 to 6.5 on the Mohs scale. It has industrial uses in sulfuric acid production, fertilizers, and batteries. Pyrite can oxidize and cause environmental concerns. It is also used in jewelry and decorative items.
Cement Bricks:
Cement bricks, made from a mixture of cement, sand, and water, are widely used in construction for their strength, durability, and weather resistance. They offer advantages over traditional clay bricks and come in various sizes, shapes, and colors. Cement bricks are cost-effective, provide thermal insulation, and require proper construction practices for quality and longevity. Efforts have been made to develop sustainable alternatives to reduce energy consumption and carbon emissions.
Pyrite Stone:
Pyrite, also known as iron pyrite or fool's gold, is a mineral with the chemical formula FeS2. It is composed of iron and sulfur.It has a metallic luster and a brassy yellow color, often resembling gold. However, it is important to note that pyrite is not gold and does not have any intrinsic value.Pyrite is commonly found in sedimentary rocks, such as shale or limestone, as well as in hydrothermal veins and metamorphic deposits.It has a hardness of 6 to 6.5 on the Mohs scale, which means it is relatively soft compared to many other minerals.Pyrite is often used in various industrial applications. It is a source of sulfur in the production of sulfuric acid, and it is also used in the manufacturing of fertilizers, sulfur dioxide scrubbers, and certain types of batteries.In its natural form, pyrite can sometimes oxidize and form sulfuric acid, leading to acid mine drainage, which can be environmentally damaging.Pyrite has also gained popularity as a decorative stone in jewelry and ornamental pieces due to its unique appearance.Cement Bricks:
Cement bricks, also known as concrete bricks, are building materials made from a mixture of cement, sand, and water.The main component of cement bricks is cement, which acts as a binder, holding the other materials together.Cement bricks are manufactured through a process of mixing the cement, sand, and water, followed by molding and curing.They are commonly used in construction for building walls, pavements, and other structures.Cement bricks have several advantages over traditional clay bricks. They offer better strength, durability, and weather resistance.Cement bricks are available in various sizes, shapes, and colors to suit different construction needs and aesthetic preferences.They are relatively cost-effective compared to other building materials and provide good thermal insulation properties.The production of cement bricks requires energy and contributes to carbon emissions, so efforts have been made to develop more sustainable alternatives, such as fly ash bricks or eco-friendly cement.Proper construction practices, including correct mixing ratios and adequate curing, are essential for ensuring the quality and longevity of cement brick structures.For more such information on: mineral
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PLEASE HELP 50 AND BEST ANSWER
Begin by printing out a copy of the periodic table. Use the file attached to the assignment page or download the file from the Course Resources folder.
1. Label the rows as the electron energy levels.
2. Label the number of valence electrons in Columns 1,2, and 13-18.
3. Label the metals, semi-metals, and non-metals using different colors. Make sure you don't obscure any of the information about different elements by coloring.
4. Label the ion charges for elements in the first 3 rows. Remember all the elements in Columns 1,2,16,17,18 will always have the same charge. Elements in Columns 13,14, or 15 can have different charges within the same row it's especially useful to write these charges on your periodic table. --
5. Label the trends for atomic size, ionization energy, and electron affinity.
Label the rows as the electron energy levels:
The rows of the periodic table are also known as periods. There are seven periods, and each period corresponds to a particular energy level. You can label them from 1 to 7, starting from the top row.
What are the responses to other questions?Label the number of valence electrons in Columns 1, 2, and 13-18:
Columns 1 and 2 are the s-block elements, and they have 1 and 2 valence electrons, respectively. Columns 13-18 are the p-block elements, and they have 3 to 8 valence electrons, respectively. You can label the number of valence electrons in each column.
Label the metals, semi-metals, and non-metals using different colors:
Metals are on the left side of the periodic table, semi-metals are in the middle, and non-metals are on the right side. You can use different colors to label them without obscuring any of the information about different elements.
Label the ion charges for elements in the first 3 rows:
Elements in the first 3 rows of the periodic table have predictable ion charges. The alkali metals (Group 1) have a charge of +1, the alkaline earth metals (Group 2) have a charge of +2, and the elements in Group 13 have a charge of +3. For Groups 15, 16, and 17, the charges are -3, -2, and -1, respectively. The noble gases (Group 18) are unreactive and do not form ions. You can write these charges for each element in their respective positions.
Label the trends for atomic size, ionization energy, and electron affinity:
Atomic size generally decreases from left to right across a period and increases from top to bottom within a group. Ionization energy generally increases from left to right across a period and increases from bottom to top within a group. Electron affinity generally increases from left to right across a period and becomes less negative from top to bottom within a group. You can label these trends on your periodic table as well.
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What is
meant by (a) Material Properties ( b) Mass Fabric and (c) Mass
Properties in Price's verbal Equation?
In Price's verbal equation, material properties refer to the characteristics and behaviors of a material, mass fabric relates to the distribution and arrangement of mass within a structure, and mass properties involve the quantitative measures of mass distribution and its effects on the structural performance.
(a) Material properties in Price's verbal equation pertain to the specific attributes and qualities of a material that influence its mechanical behavior, such as strength, stiffness, density, thermal conductivity, and elasticity. These properties determine how a material will respond to external forces and environmental conditions, and they play a crucial role in the design and analysis of structures.
(b) Mass fabric refers to the spatial arrangement and distribution of mass within a structure. It considers the organization, orientation, and connectivity of the structural elements that contribute to the overall mass distribution. Mass fabric affects the structural behavior, load transfer paths, and structural efficiency of a system. By understanding the mass fabric, engineers can optimize the arrangement of components to achieve desired structural performance.
(c) Mass properties involve the quantitative measures of mass distribution within a structure and its impact on its mechanical behavior. Mass properties include parameters such as mass, center of mass, moments of inertia, and radii of gyration. These properties provide important information for analyzing the dynamic response, stability, and vibrational characteristics of structures. They also influence the structural design, material selection, and optimization processes.
In Price's verbal equation, these concepts collectively contribute to understanding the behavior and performance of structures, enabling engineers to make informed decisions in design, analysis, and optimization. By considering material properties, mass fabric, and mass properties, a comprehensive understanding of the structural system can be achieved.
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Distortion at the highest levels of magnification is decreased by
Select one:
a. using a lens with a smaller numerical aperture.
b. the use of immersion oil.
c. using a longer wavelength of light.
d. using a lower-power objective lens.
Distortion at the highest levels of magnification is decreased by (b). the use of immersion oil is correct option.
The fact that magnification does not appear as a variable in any of these equations is significant because specimen resolution is solely determined by numerical aperture and illumination light wavelength. The wavelength of light plays a significant role in the resolution of a microscope, as we have already explained (and can be seen in the calculations).
Therefore, it is preferable to utilize lower magnification objectives with a modest numerical aperture in specimens where resolution is less important and magnifications can be reduced in order to produce images with a greater working distance and greater depth of field.
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If you want to find out the density of an object, what two things do you need to know about it?
Answer:
How do I determine density? Density is not something that is directly measured. Typically if you want to know the density of something you will weigh it and then measure its volume.
A road bike has a wheel diameter of 622 mm. What is the circumference of the wheel? Use 3. 14 for Pi. 976. 24 mm 976. 54 mm 1,852. 08 mm 1,953. 08 mm.
The circumference of the road bike wheel is 1,953.08 mm with the diameter of 622 mm.
How do we calculate the circumference of the road bike wheel?To calculate the circumference of a wheel, we can use the formula Circumference = π * Diameter.
In this case, the road bike has a wheel diameter of 622 mm. Using the value of π as 3.14, we can substitute the given diameter into the formula: Circumference = 3.14 * 622 mm = 1,953.08 mm. Therefore, the circumference of the road bike wheel is 1,953.08 mm.
This means that if the wheel rolls along a flat surface, it will travel a distance of approximately 1,953.08 mm in one complete revolution.
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A. What evidence have you discovered to explain how
temperature changes affect the ice on a lake?
30 point who ever answers before 11:59am
Answer:
Well if it gets warmer the ice will weaken and if it gets hot enough will melt. Of course if the weather gets colder the ice will thicken.
Explanation:
Answer:
The change in ice alters the color of the lake surface — ice and snow cover are generally white, while the lake water itself is a deep blue.
Explanation:
hope it help
Which situation results in no work being done?
O lifting an object off the ground
O throwing a baseball to your friend
O carrying a book at a constant velocity
O pushing a car that will not start out of the garage
Answer:
C
Explanation:
C should be the right answer
A train on a straight track goes in the positive direction for 5.9 km, and then backs up for 3.8 km
Answer:
2.1km
Explanation:
Ill take it as u are talking about the displacement
Since displacement has negatives and positves
5.9 - 3.8 = 2.1km
Assertion (a): In a series circuit, the current is constant throughout the electric circuit.
Reason (R): All electric devices need equal currents to operate properly.
The given assertion 'In a series circuit, the current is constant throughout the electric circuit' is correct but the reason 'All electric devices need equal currents to operate properly' is incorrect.
A circuit is said to be connected in series when the same current flows through all the components in the circuit. The current in these circuits only travels along one route.
A higher total voltage is produced by series-connected cells than by single cells. Voltage increases if the number of cells increases. Series circuits do not overheat easily.
All the electrical devices do not require equal amount of current for their functioning. For example, an electric heater and an electric fan do not require the same amount of current.
In a series combination, if one component fails, all other components stop working.
Series connection is not suitable for domestic circuits.
Therefore, while the assertion is true, the reason is false.
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state any two physical properties for believing that aluminium is a metal.
Answer:
amongst the properties that makes aluminium a metal is that it is malleable and ductile...and it has high melting and boiling points
I hope that helps
Explanation:
properties of metals include
1. high melting and boiling points
2 high densities
3 malleability and ductility
13. A nuclear decay chain represents
the reason why only fission is more efficient than fusion for nuclear energy
a series of
decays producing sequentially more stable nuclei
b. the only possible type of decay that an isotope can undergo d. the process of nuclei becoming
increasingly energetic as they release radiation
Answer:
a series of decays producing sequentially more stable nuclei
Explanation:
A nuclear decay chain represents a series of decays producing sequentially more stable nuclei.
For every atomic nucleus, there is a specific neutron/proton ratio which ensures the stability of the nucleus. Any nucleus with a neutron/proton combination different from its stability ratio (i.e either too many neutrons or too many protons) will be unstable and split into one or more other nuclei with the attendant emission of small particles of matter. The decay process is a continuous chain reaction steps. Until stability of the nucleus is attain, it continues.Blaise is driving a car that is traveling 6.03 m/s and accelerates uniformly at 2.5 m/s² to reach a speed of 12.9 m/s. How long does it take for this acceleration to occur?
It would take 0.3639 seconds for this acceleration to occur.
Given the following data:
Initial speed, U = 6.03 m/sFinal speed, V = 12.9 m/sAcceleration, a = \(2.5 \;m/s^2\)To find how long it takes for this acceleration to occur, we would use the first equation of motion.
Mathematically, the first equation of motion is given by the formula;
\(V = U + at\)
Substituting the values into the equation, we have;
\(12.9 = 6.03 + 2.5t\\\\2.5t = 12.9 - 6.03\\\\2.5t = 6.87\\\\t = \frac{2.5}{6.87}\)
Time, t = 0.3639 seconds
Therefore, it would take 0.3639 seconds for this acceleration to occur.
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a truck hits a brick wall with a force of 100 000 kg m/s2. the truck comes to a stop in 0.5 s. calculate the impulse the truck experienced
Answer:
\(\huge\boxed{\sf I = 50,000\ Ns}\)
Explanation:
Given data:Force = F = 100,000 N
Time = t = 0.5 s
Required:Impulse = I = ?
Formula:I = F × t
Solution:I = 100,000 × 0.5
I = 50,000 Ns
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An iron nail does not pick up paper clips as a magnet would.
Answer:
Because even if iron is magnetic its not a magnet it self unless rubbed a magnetic object
a thin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z axis, with the origin at the center of the ring.
Answer:
E max
=3.46×10
7
N/C
Explanation:
If the radius and charge are R and Q. We need to calculate the electric field due to the rod. Using formula of electric field. Where, Q = charge. z = distance. If z = 0, Then, The electric field is (b). If z = ∞, z>>R. So, R = 0. Then, the electric field is (c). In terms of R, We need to calculate the positive distance. If . Then, Taking only positive distance (d).
. A coil is wrapped with 400 turns of wire on the perimeter of a circular frame of radius 8.5cm. Each turn has the same area, equal to that of the frame. A uniform magnetic field is turned on perpendicular to the plane of the coil. This field changes at a constant rate from 10.0 to 80.0mT in a time of 20.0ms. What is the magnitude of the induced emf in the coil at the instant the magnetic field has a magnitude of 50.0mT
The emf in the coil when the magnetic field is 50.0 mT is 31.78 V.
What is emf?
According to Faraday's law of electromagnetism, the emf of a coil
is the negative of the rate of change of magnetic flux with respect to time.
The emf of a coil is given by the formula,
\(E=-\frac{d\phi}{dt}\)
where E is the emf, dΦ is the change in flux and dt is the change in time.
Magnetic flux: The scalar product of the magnetic field B and the total area vector A perpendicular to it is called the magnetic flux. The magnetic flux for a circular coil with n number of turns is given by,
\(\phi=n\pi r^2B\)
where r is the radius of the coil.
Substitute \(\phi=n\pi r^2B\) in the above equation and solve it.
\(E=-\frac{d(n\pi r^2 B)}{dt}\\E=-n\pi r^2 \frac{dB}{dt}\)
Where dB/dt is the rate of change in the magnetic field with respect to time.
Note: 1mT/ms= 1 T/s, 1 cm= 0.01 m and 1mT=0.001 T
Given the magnetic field changes from 10.0mT to 80.0mT, the change in magnetic field dB = 80-10=70mT. The time interval dt= 20.0ms. Therefore,
dB/dt = 70/ 20 =3.5mT/(ms)
dB/dt = 3.5 T/s
Substitute dB/dt= 3.5T/s, n=400, r=8.5 cm or r=0.085 m in the formula of E and solve it. Since the value of magnitude is positive, ignore the negative sign.
E=400*π*(0.085)^2*(3.5)
E=31.78 V
Since the rate of change of magnetic field is constant, so the magnitude of the emf of the coil will remain the same at all instants. Hence E=31.75 V when the magnitude of the magnetic field is 50.0 T
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What is the frictional force between a box and the floor it is being pulled across if, the kinetic coefficient of friction is 0.27 and the box
weighs 38 N?
A 140.7 N
B 100.6 N
C. 37.7 N
D. 10.3 N
If the pulling is done parallel to the floor with constant velocity, then the box is in equilibrium. In particular, the weight and normal force cancel, so that
n = 38 N
The friction force is proportional to the normal force by a factor of 0.27, so that
f = 0.27 (38 N) ≈ 10.3 N
and so the answer is D.
When you blow across the top of a
soda bottle, it acts like a closed
pipe. If the inside of the bottle is
0.150 m long, what is the
fundamental frequency you hear?
(Speed of sound = 343 m/s)
(Unit = Hz)
Answer:
572
Explanation:
Got it right on Acellus, you take the velocity and divide it by 4 times the length.
Which of the following is considered to be a fine motor skill?
Jumping rope
Drawing
Running
Riding bicycle