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A 15 g bullet strikes and becomes embedded in a 1.10 kg block of wood placed on a horizontal surface just in front of the gun. If the coefficient of kinetic friction between the block and the surface is 0.25, and the impact drives the block a distance of 9.5 m before it comes to rest, what was the muzzle speed of the bullet?
How much heat flows from 1.00 kg of water at 36.0°C when it is placed in contact with 1.00 kg of 22°C water in reaching equilibrium
The quadriceps pulls on the patella with a force of 1000N, while the patellar tendon pulls on the patella with a force of 1000N also. how large is the compressive force exerted by the femoral condyles on the patella
A father pulls his young daughter on a sled with a constant velocity on a level surface a distance of 10 m. how much work does the father do
A string under a tension of 47.00N is used to whirl a rock in a horizontal circle of radius 2.60 m at a speed of 21.0 m/s. The string is pulled in and the speed of the rock increases.
What is the pressure at the bottom of a swimming pool which is 12ft deep and contains fresh water.
Two wheels have the same mass and radius of 4.3 kg and 0.50 m, respectively. One has the shape of a hoop, Find the net external torque that acts on each wheel
A satellite is placed in orbit 8.40 x 10^5 m above the surface of the planet Jupiter. Find the orbital speed of the satellite
A bucket of mass m is tied to a massless cable that is wrapped around the outer rim of a frictionless uniform pulley of radius R. what must be the moment of inertia of the pulley
A 1.86- sound wave travels through the pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward the sound receiver as heart beats. The reflected sound is after that mixed with the transmi..
A bottle has a mass of 35.00 g when empty and 98.43 g when filled with water. What is the specific gravity of this other fluid
A solid, square pinewood raft measures 4.4 m on a side and is 2.80 m thick. What is the total mass of swimmers that the raft can carry and float with its top surface at waterlevel
A 1.60 kg ball and a 7.20 kg ball are connected by an 80.0 cm long massless, rigid rod. What is the rotational kinetic energy of the structure
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