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Compute the gravitational potential due to a thin rod of length L and mass M at a point P located a distance R from the end of the rod and in a direction perpendicular to the rod. Suppose that the density of the rod is not constant, However changes as (x)= (? sub zero)(x^2) where x=0 at the closest end of the rod to the point P.
How much time is the stone in the air
Since each rolling wheel of a railroad train is tapered, the narrow part of the wheel has a tangential speed that is
Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 5.0 s, it rotates 45 rad. What is the instantaneous angular velocity of the disk at the end of the 5.0 s
An engineer is given the job of designing the water system for a tall building. He decides to locate the pumps at ground level and feed the entire building from there. what must the pressure be at pump level
Neutron stars consist only of neutrons and have unbelievably high densities. Calculate the density of such a star
A rod of length L is hinged at one end. The moment of inertia as the rod rotates around that hinge is ML2/3. Find what is the angular acceleration as it is released
During volcanic eruptions, chunks of solid rock can be blasted out of the volcano; these projectiles are called volcanic bombs. What would be the time of flight
An engine flywheel initially rotates counterclockwise at 5.39 rotations per second. Then, during 21.3 seconds, its rotation rate changes to 2.11 rotations per second clockwise. Find the flywheel\'s average angular acceleration (including its sign) in..
An archer pulls the bowstring back for a distance of0.550 m before releasing the arrow. Thebow and string act like a spring whose spring constant is490 N/m. What is the elastic potential energy of the drawn bow?
A 73.0 kg construction worker stands at the far end of the beam.What is the magnitude of the torque about the point where the beam is bolted into place .
An AC generator supplies an rms voltage of 240 V at 60.0 Hz. It is connected in series with a 0.450 H inductor, a 3.90 ?F capacitor and a 316 ? resistor, What is the rms current through the resistor
a basball pitcher pitches with a horizontal velocity of 80mph(36m/s) the horizonatal distance from the point of release to home plate is 59ft. what is the intantous linear velocity of the sweet spot at the instant of ball contact
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