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A yo-yo is released from rest and starts to unwind. The yo-yo has a cyclinder shape, a radius R, and a mass of m. The yo-yo has a moment of Inertia Icm=1/3mR2. Explain in words how the mass of the yo-yo could be distributed to create this Icm.
Two small spheres each with mass m = 5 grams and charge q, are suspended from a point by threads of length L = 0.30m. What is the charge q on each sphere if the threads make an angle theta = 20 degrees with the vertical
A child on a merry-go-round is moving with a speed of 1.40 m/s when 1.10 m from thecenter of the merry-go-round. Calculate the centripetal acceleration of the child
A 224Ra atom (Z=88, Atomic mass = 224.020186 amu) consists of protons (Mass = 1.00728 amu), Calculate the binding energy per nucleon
vector a is directed along the positive y-axis and has magnitude 5.0 units. vector b is directed along the negative
A 10-m-long glider with a mass of 780kg(including the passengers) is gliding horizontally through the air at 30m/s when a 70Kg skydiver drops out by releasing his grip on the glider. What is the glider's speed
a man walks westward on ship with a speed of 4km/hr. the ships propeller drives it 15km/hr south. what is the actual speed of the man relative to earth
When red light in a vacuum is incident at the Brewster angleon a certain type of glass, the angle of refraction is 24.7°. evaluate the index of refraction of the glass
A bungee cord is 45.0m long when un-streched. A 1.70m tall jumper (mass 70kg), with both feet tied to the cord, falls from a bridge 85m above the river. what is the speed of the jumper
Bronco Brown is mowing his lawn. He applies a force F along the handle of the lawnmower as shown. Bronco moves the mower at constant velocity.
The record for the highest speed achieved in a laboratory for a uniformly rotating object was 2.01e3m/s for a 0.15m long carbon rod
As an admirer of Thomas Young, you perform a double-slit experiment in his honor. How far on the screen are the first bright fringe and the second dark fringe from the central bright fringe
A fountain, for a new municipal building, is designed to spray a column of water 105 meters into the air. It requires an exit velocity of 44 m/s. The nozzle at ground level , has a diameter of 7 cm and the pipe leading to the fountain is 24 cm in dia..
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