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A steel spoked motorcycle wheel without the rubber tire is rotating by angular speed of 27.3 rad/s. The temperature of the wheel changes from 10 degrees Celsius to 210 degrees Celsius. There is no net external torque acting on the wheel and the spokes mass is negligible. Does the speed increase or decrease as the wheel heats up? Why? What is the final angular speed?
q1. a 2.5g copper penny is given a charge of -0.50 mc.how many excess electrons make up this charge?what is the
A 800 kg car pushes a 2000 kg truck that has a dead battery. What is the magnitude of the force of the truck on the car
A 3.4-cm-diameter parallel-plate capacitor has a 1.8mm spacing. The electric field strength inside the capacitor is 1.3×105V/m, What is the potential difference across the capacitor
An LRC series circuit with R=150 ohlms, L=25 mH, and C=2 uF is powered by an ac voltage source of peak voltage Vo=340V and frequency f=660 Hz. Determine the peak current that flows in this circuit
A boy on the edge of a vertical cliff 20 m high throws a stonehorizontally outward with a speed of 20 m/s. It strikes the grounfat what horizontal distance from the foot of the Cliff
A satellite is put in a circular orbit about Earth with a radius equal to 50% of the radius of the Moon's orbit. What is its period of revolution in lunar months
A cat is being chased by a dog. Both are running in a straight line at constant speeds. How fast did the cat run
In the figure below, a nonconducting rod of length L = 7.50 cm has charge -q = -4.68 fC uniformly distributed along its length. What is the linear charge density of the rod?
This magnetic field accelerates the electron in a circular motion. What is radius of the circle. The final situation is observed to be all water at 18°C. What was the mass of the ice cube.
Consider the circuit in the figure below. Take emf = 6.00 V, L = 7.00 mH, and R = 6.00 O. What is the value of the final steady-state current
The electric potential at a position located a distance of 20.7 mm from a positive point charge of 7.50×10-9C, Calculate the value of the second charge
To measure the static friction coefficient between a 2.2-kg block and a vertical wall, the setup shown in the drawing is used. What is the coefficient of static friction
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