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A thin rod (length = 1.49 meter) is oriented vertically, with its bottom end attached to the floor by means of a frictionless hinge. The mass of the rod may be neglected, compared to the mass of the object fixed to the top of the rod. The rod, starting from rest, tips over and rotates downward.
(a) Find what is the angular speed of the rod just before it strikes the floor?
(b) Find the magnitude of the angular acceleration of the rod just before it strikes the floor?
A rubber ball of mass 24.5 g is droppedfrom a height of 2.05 m onto a floor. The velocity of the ball is reversed by the collision with the floor,and the ball rebounds to a height of 1.30m. What impulse was applied to the ball during the collision?
Calculate and compare the electron densities of a piece of aluminum 1 cm thick and a piece of iron of the same density thickness. Show your work.
a diver leaves a 3 m- board on a trajectory that takes her 2.2 m above the board and then into the water 2.7 m
you pull a simple pendulum of length 0.240m to the side through an angle of 3.50degree and release it. a. how much time
question an ambulance is traveling east at 60ms. behind it there is a car traveling along the same direction at 34.3
A uniform, solid metal disk of mass 6.10 and diameter 29.0 hangs in a horizontal plane, supported at its center by a vertical metal wire. What is the period of the torsional oscillations of the disk
A feather is dropped on the moon from a height of 3 meters. Determine the time for the feather to fall to the surface of the moon
At one point in a pipeline, the water's speed is 3 m/s and the gauge pressure is 4.00×10^4 Pa. Find the gauge pressure at a second point in the line 11 m lower than the first if the pipe diameter at the second point is twice that at the first.
A seasoned mini golfer is trying to make par on a tricky hole #5. The golfer can complete the hole by hitting the ball from the flat section it lays on, at what speed must the golfer hit the ball to land the ball in the hole
A 20.0cm -diameter cylinder of helium gas is 50.0cm long and at 30.0 ?C. The pressure gauge reads 130psi, How many helium atoms are in the cylinder
a crane on a dock lifts an 1107kg container 28m, swings it out over the deck of a freighter, and lowers the container into the hold of the freighter, how much work is done by the crane on the container
A chamber with a fixed volume of 1.0 m 3 contains a monatomic gas at 3.00*10 2 K. The chamber is heated to a temperature of 6.00*10 2 K. This operation requires 20.0 J of heat. (Suppose all the energy is transferred to the gas.) How many gas m..
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