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A 2800 kilogram Ferris wheel accelerates from rest to an angular speed of 0.17 rad/s in 11 second. Approximate the Ferris wheel as a circular disk with a radius of 22 meter. Obtain what is the net torque on the wheel?
The potential difference across the terminals of a battery is V1 when there is a current of I1 in the battery from the negative to the positive terminal, Compute the internal resistance r of the battery
A test rocket is fired vertically upward from a well. A catapult gives it an initial speed of 80.6m/s at ground level. Its engines then fire and it accelerates upward at 3.80 m/s2 until it reaches an altitude of 930m. At that point its engines fai..
A 6.0-V battery is connceted in series with a 29-mH inductor, a 110-Ω resistor, and an open switch. After the switch is closed, how much time will elapse before the current in the circuit will be equal to 12 mA?
A vertical spring, k= 305N/m, vibrates with amplitude of 28cm when.26kg hangs from it. What equation describes the motion as a function of time
A pump is required to lift a mass of 780kg of water per minute from a well of depth 13.7m and eject it with a speed of 17.9m/s, What must be the power output of the pump
An 83 kilogram skier starts at rest 250 meter up the side of a mountain. The skier then travels down the slope until the ground levels out at the bottom. Find the skiers speed at the bottom of the slope
An athlete executing a long jump leaves the ground at a 34.8 degrees angle and travels 7.86m. how much longer would the jump be
A girl pulls a box of mass m = 6 kg across a floor with a constant horizontal force F = 22 N. Initially the block is at rest. For the first d1 = 7 m, What is work done on the box by friction in moving the box over the distance d1 + d2
Two point charges totalling 9.50 C exert a repulsive force of 0.120 N on one another when separated by 0.400 m. What is the charge on each? Suppose that the two charges are negative. Enter the smaller charge in the first box.
Consider two twins 25 years old. One twin steps on a spaceship (after studying physics in college), How old is each twin when she returns
As a result of the friction between their surfaces, after a while, both disks spin at the similar angular speed. Determine the work done by the frictional torque.
Imagine that plane reaches the necessary takeoff velocity
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