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A 80-kg driver can decrease his rotation rate in a flip from an initial rate of 3.0rev/s to a final rate of 1 rev in 2 sec by straightening his body. If we consider his straightened body to be a cylider with a radius of 34 cm, find his final moment of inertia, then find his initial moment of inertia.
The inner sphere has radius 15.0 cm and the capacitance is 116 pF. If the potential difference between the two spheres is 220 V, illustrate what is the magnitude of charge on each sphere?
Two earthquake waves of the same frequency travel through the same portion of the Earth, What is the ratio of the amplitudes of the two waves
A person's right eye can see objects clearly only if they are between 27cm and 86cm away. What will be the near point with the lens in place
A 295 Kg piano slides 4.1 m down a 30 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is .40.
Find out the distance between the point of firing and the point at which the 2.6-kg fragment strikes the ground.
An 80 kg spacewalking astronaut pushes off a 640 kg satellite, exerting the 100N force for the 0.50 s it takes him to straighten his arms.
A drinking fountain shoots water about 14 cm up in the air from a nozzle of diameter 0.60 cm. What gauge pressure does the pump have to provide
A parallel plate capacitor has a capacitance of 2 µF when the plates are seperated by a vacuum. What is the electric field with the slab in place
Consider three points A,B,C on the x-y plane, where a uniform electric field E = 100(N / C)i exists, Find the potential difference VB -VA and VC-VA
A 2-kg block rests on top of a table 80 cm from the floor. Find the potential energy of the book relative to the floor
Apply Newton's second law to the elevator and find the maximum upward acceleration for the elevator if the cables are not to break? Please Help Guys
A gun shoots bullets that leave the muzzle with a speed of 338 m/s. If a bullet is to hit a target 104-m away at the level of the muzzle, the gun should be aimed at a point above the goal.
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