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A 2.10-kg block is suspended from a spring with a spring constant of 480.0 N/m. A 0.070-kg bullet is fired into the block from directly below with a speed of 130.0 m/s and is embedded in the block. Find the amplitude of the subsequent motion. What fraction of the original kinetic energy of the bullet appears as mechanical energy in the system of block-spring-bullet?
A fire hose 4.19 cm in diameter is capable of spraying water at a velocity of 16.3 m/s. what horizontal force should a fireman exert on the hose to keep it stationary
An Atwood machine consists of two masses, = 6.5 and = 8.5 , linked by a cord that passes over a pulley free to rotate about a fixed axis. The pulley is a solid cylinder of radius = 0.40 and mass 0.80 .
A stone is dropped at t = 0. A second stone, with 6 times the mass of the first, How far below the release point is the center of mass of the two stones at t = 340 ms
A rocket burns fuel at a rate of 100 kg/s and exhausts the gas at a relative speed of 3.0 km/s. Find the thrust of the rocket
What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V highest potential difference operating at 5000 rad/s .
a street light is supported by two wires and each makes a different angle from each other. the one on the left is 32
A ship travels 155 km from the port on a course of 35 degrees south of west to an island, then it travels 142 km east of south to a second island, Find the displacement from the starting point to the ending point
A 0.24 kg blob of clay is thrown at a wall with an initial velocity of 19 m/s. If the clay comes to a stop in 91 ms, what is the average force experienced by the clay
you are to purchase a grating that will cause the deflection of the n=2 second- order bright band for red light to be 42°. How many lines per centimter should your grating have
A room with 2.9m high ceilings has a metal plate on the floor with V= 0V and a separate metal plate on the ceiling. How high does the ball go if the ceiling voltage is 3.5×10^6V
Copper has an electrical resistivity %u03C1 = 1.72 x 10-8 %u2126m. What is the electrical resistance of a copper wire
the pericarppart of a popcorn kernel is a small container of liquid water. when the poppcorn is heated to about 180 degrees C, what is the change in entropy of the water due to the vaporization and expansion
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