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1. In a capacitor, one side accumulates charge because the battery is putting charges on it. Explain how the other plate becomes charged. In addition, explain why, as a plate accumulates charge, it becomes harder and harder to put more charges onit.
2. Why do we use RMS values for AC circuits as opposed to average values?
3. During a lighting storm would it be safer to be inside a boxmade of copper or a box made of wood?explain
A hockey puck moving at 0.473 m/s collides elastically with another puck that was at rest.Find the speed of the second puck after the collision
Points A and B have electric potentials of 257 V and 129 V, respectively. When an electron released from rest at point A arrives at point C its kinetic energy is KE1, What is the electric potential at point C
Consider a bird that flies at an average speed of 10.7m/s and releases energy from its body fat reserves at an average rate of 3.70W, How far will the bird fly before feeding again
A spaceship of proper length298m takes0.79µs to pass an Earth observer. find the speed of this spaceship as measured by the Earth observer
A cylinder with a cross-sectional area of 9.8 cm2 is fitted with a movable piston. How much force must be applied to the piston to maintain it in its new position
What phase difference between two otherwise identical travelling waves, moving in the similar direction along a stretched string.
A baseball pitcher throws a baseball with a speed of 47. Estimate the average acceleration of the ball during the throwing motion
The drawing shows a rectangular block of glass (n = 1.52) surrounded by a liquid with n = 1.73. At what angle does the ray leave the glass at point B
Calculate the magnetic field inside a solenoid and the energy stored within the coil given the following information: I = 6A, Number of turns = 200
A 65.0 kg bungee jumper steps off abridge with a light bungee cord tied to her and to the bridge. The unstretched length of the cord is 11.0m. She reaches the bottom of her motion 36.0 m below the bridge before bouncing back
An archer shoots an arrow with a velocity of 30 m/s at an angle of 20 degrees with respect to the horizontal. What is the initial speed of the apple
A nearsighted person cannot read a sign that is more than 6.0 m from his eyes. What is the focal length of the contacts?
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