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Consider a solid sphere, mass = 4.0 kg, that is spinning with an angular velocity of 23 radians/second.The diameter of the sphere is 0.20 meters. Determine the angular kinetic energy.
A high-voltage transmission line with a resistance of 0.335 ?/km carries a current of 1.45 kA, What fraction of the transmitted power does this loss represent
The top plate is illuminated by monochromatic light of wavelength 544.1 nm. Determine number of dark parallel bands crossing the top plate (including the dark band at zero thickness along the edge of contact between the two plates).
A parallel-plate capacitor has plate area 2.5×10?3m2 and plate spacing 3.0×10?2m, Find the stored charge and energy when this capacitor is connected across a 60V battery
A pilot knows a 7.00 km distance lies between two landmarks A and B on the level ground below. When he is over landmark A, What is the airplanes altitude
A ladybug is sitting at the center of a turntable. The turntable is rotating on a frictionless bearings and it rotates without assistance from a motor. As the ladybug walks to the edge of the turntable, what happens to combined angular momentum of..
A person is making homemade ice cream. She exerts a force of magnitude 22 N on the free end of the crank handle, and this end moves in a circular path of radius 0.28 m. The force is always applied parallel to the motion of the handle. If the handl..
Find the typical speed for a tsunami. (Note down that in the open ocean, tsunamis generally have amplitude of less than a meter, allowing them to pass ships unnoticed. As they approach shore, however, water depth decreases and the waves slow down. Th..
A world class sprinter accelerates to his maximum speed in 3.80 s. He then maintains this speed for the remainder of a 100 m race, finishing with a total time of 10.30 s. What is the runner's average acceleration throughout the first 3.80 s.
Laser light with a wavelength lambda = 660nm illuminates a pair of slits at normal incidence.
Assume you are swimming in a river while a friend watches from the shore. In calm water, you swim at a speed of 1.25 m/s. The river has a current that runs at a speed of 1m/s.
A child suddenly runs into the street. If it takes the driver 0.80 s to react and apply the brakes, explain how many meters will the car have moved before it begins to slow down?
On a dry day, just after washing your hair to remove natural oils and drying it thoroughly, run a plastic comb through it. Small bits of paper will be attracted to the comb. Explain why.
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