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a bullet moving at 200 m/s strikes a wooden block which has several hundred times the bullets mass. the block is hanging from a string. only 1% of the kinetic energy of the bullet shows up as motion of the block after the bullet has become embedded in the block. what happened to the rest of the energy? describe how the block moves and some of the changes to the block?
A 4.00kg block slides down a frictionless inclined plane with an acceleration 3.00,/s^2. What is the angle of the incline above the horizontal
An object at rest on a flat, horizontal surface explodes into two fragments, one seven times as massive as the other. How far does the lighter fragment slide
Two circular loops are centered on the x-axis parallel to the yz-plane. The smaller loop is stationary with radius r=0.01m, and resistance R=0.003Ohms. The larger loop has radius, s=0.1m, carries current I=1.5A, and moves towards the smaller loop ..
A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 5.69 10-2 kg/s. What is the speed at which the gasoline moves through the fuel line
The figure below shows a hollow cylinder that has a length equal to 1.80 m, a mass M equal to 0.88 kg, and radius equal to 0.20 m. The cylinder is free to rotate about a vertical axis that passes through its center and is perpendicular to the cylinde..
An ultracentrifuge having a diameter of 17.3 cm produces an extremely large acceleration of 2.71E+5 m/s2. estimate the angular speed of the centrifuge
Four equal charges of +4.9×10-6 C are placed on the corners of one face of a cube of edge length 7.0 cm. calculate the magnitude of the force on the charge
Calculate the magnitude of the gravitational force exerted on a 429-kg satellite that is a distance of 2.91 times earth radii from the center of the earth. What is the magnitude of the earth's acceleration
A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.50 m and a mass of 475 kg. Find the kinetic energy stored in the flywheel
Suppose now that the apparatus is sealed, and the temperature rises to 56.4o C. Find the pressure inside the apparatus now
A current I flows down a wire of radius a. If it is uniformly distributed over the surface, what is the surface current density K
If F(r) is the force on an object as a function of of radius r, show that the "tidal" force on an object of lenght delta r is delta F= (dF/dr)delta r
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