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A 60 kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 0.7 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.
m
A small plane is dropping emergency supplies to a fishing boat that has been blown out to sea. How far from the boat will the supplies land
Unpolarized light is incident on a series of two Polaroid sheets. The intensity of the light emerging from the second sheet is 18.4 percent of the intensity of the light incident on the first sheet. Find out the angle between the transmissions axe..
You fire a gun horizontally that is 25m off the ground and the bullet goes at 200m/s. What is the time it takes for the bullet to hit ground, how far down range does bullet travel, and what is the resultant velocity (in m/s) and final angle.
Since you are pulling up a little on the crate, the floor doesn't have to support as much weight. When you are pulling up on the rope as described above, what is the upward force that the floor exerts on the crate.
A 30-g bullet initially traveling 500 m/s penetrates 12 cm into a wooden block. What average force does it exert on the block
A small package rests on the horizontal dashboard of a car. If ?s = 0.302, what is the minimum acceleration of the car
A potter's wheel is a uniform solid disk of diameter 0.72m and a mass of 60kg. the wheel is initially spinning at a rate of 85 rev/min. what is moment of inertia of the disk
Twenty particles, each of mass m0 and confined to a volume V, have various speeds: two have speed v, FIND the pressure they exert on the walls of the vessel
Using energy considerations, compute the average force the beam exerts on the pile driver while the pile driver is brought to rest.
Use gauss law to find the electric field in the space surrounding an infinite line of the charge with a uniform charge density
A turntable 1.50{m} in diameter rotates at 80.0{rpm} . Two speakers, each giving off sound of wavelength 30.7{cm}, What is the greatest beat frequency the listener will receive from this system
A particle moves along the x-axis. Its position varies with time according to the expression x(t) = -4t + 2t2, where x is in meters and t is in seconds. a) Determine the displacement of the particle in the two time intervals t = 0 to t = 1 s and t..
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