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A 13 g bullet traveling 226 m/s penetratesa 2.0 kg block of wood and emerges going 164 m/s. If the block is stationary on a frictionlesssurface when hit, how fast does it move after the bulletemerges?
q1. a hockey stick is swung with the average angular acceleration of 1.5 rads2. what is the angular velocity of the
A group of hikers hear an echo 2.50 s after they shout. If the temperature is 28°C, how far away is the mountain that reflected the sound wave.
A concentration difference of a certain solute of 1.0 Ã- 10â€"2 kg/m3 is maintained between the ends of a tube with a length of 3.5 m and a cross-sectional area of 0.25 m2. What is the diffusion constant for the solute
A uniform metal rod, with a mass of 3.4 kg and a length of 1.3 m, is attached to a wall by a hinge at its base. Find the vertical component of the force exerted on the rod by the hinge
Two diffraction patterns are formed on the screen. What is the distance between the common center of the diffraction patterns and the first occurrence of the spot where the dark fringe from one pattern falls on top of a dark fringe from the other p..
A string under tension of 50.0 N is used to whirl a rock in a horizontal circle of radius 2.5 m at a speed of 20.4 m/s on a frictionless table. What is the breaking strength, in Newtons, of the string
The two spheres are then connected by a thin conducting wire, What is the charge on the first sphere after the two spheres are connected by the wire
A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 5.49 10-2 kg/s. What is the speed at which the gasoline moves through the fuel line
a person of mass Mp is standing in an elevator of Me suspended from the top of a building by a spring with spring constant k. what is the equilibrium constant of the spring
To fight a fire on the fourth floor of a building, firefighters want to use a hose of diameter 6.31cm to shoot 925 liters/minute of water to a height of 11m, What pressure must the water have inside the hose
A certain medical machine emits x-rays with a minimum wavelength of 0.02 nm. One day, the machine has an electrical problem, What is the maximum x-ray energy this machine (with electrical problems) can produce
An office window has dimensions 3.4 m by 1.7 m. As a result of the passage of a storm, the outside air pressure drops to 0.95 atm, but inside the pressure is held at 1.0 atm.
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