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A 40.0-kg shell is fired from a gun with a muzzle velocity 85.0 m/s at 29.0o above the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose speed immediately after the explosion is zero, falls vertically. What is the horizontal speed of the other fragment?
A zookeeper and a monkey. The zookeeper shot a tranquilizer gun with an initial v=30m/s. The monkey was up on a tree 140m high. What is the monkeys speed during free fall
In the first-order spectrum, maxima for two different wavelengths are separated on the screen by 3.22 mm. What is the difference between these wavelengths
We have some air in a cylinder like that in the figure. Assume that air is an ideal diatomic gas. The diameter of the cylinder is 5.4 cm. Find the amount of hear that was put into air
An airplane accelerates down a runway at 3.20 m/s2, finally lifts off the ground Determine the distance traveled before takeoff?
A dockworker applies a constant horizontal force of 82.0N to a block of ice on a smooth horizontal floor, What is the mass of the block of ice
A 1.0-kg ball has a velocity of 12 m/s downward just before it strikes the ground and bounces up with a velocity of 12 m/s upward. What is the change in momentum of the ball
At time t=0 a grinding wheel has an angular velocity of 27.0rad/s, At what time does the wheel stop
A -3.4 nC charge is on the x-axis at x1 = -7 cm and a 4.2 nC charge is on the x-axis at x2 = 13cm. At what point or points on the y-axis is the electric potential zero
A copper block is removed from a 306?C oven and dropped into 1.00kg of water at 20.1?C. What is the mass of the copper block
An Indy car with a speed of 125km/h goes around a level, circular track with a radius of 1.3km. What is the centripetal acceleration of the car.
A neutron of initial kinetic energy (Eini) scatters elastically from a target nucleus which is initiallt at rest. Find the maximum and average fractional kinetic energy loss F=1-(Efinal/Einitial)
She only uses the most accelerated depreciation method possible. The computer is the only personal property which she places in service during the year. Illustrate what is her total depreciation deduction for 2011?"
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