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Q1. A 4.30g lead bullet travelling at 370m/s is stopped by a large tree. If half the kinetic energy of bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in temperature of bullet?
Q2. Now suppose that the two masses continue to move at the speed from Part A until they encounter a rough surface. The coefficient of friction between the masses and the surface is . If the blocks come to rest after a distance, which of following equations would you use to find?
Two force vectors point in opposite directions and have the same magnitude. If their magnitudes are 36.5 Newton’s, then what is the magnitude of their sum?
A 29.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 85.0 N and is directed at the angle of 30.0° above the horizontal. Find out the coefficient of kinetic friction.
What would be the time constant in a RC circuit when R = 200 kohms and C = 10mf? 20
A staging that weighs 440 N supports two painters, one 110 N and the other 460 N. The reading in the left scale is Ft = 800 N. What is the reading Fr, in the right hand scale.
What horizontal force acts on the puck after the push
What should be coefficient of static friction
Calculate the dc voltage applied to the circuit.
What mass of stone is necessary if the temperature is not to drop below 18.5°C overnight. Sunlight shining in during the daytime is absorbed by the floor, interior walls, and objects in the room, raising their temperature to 37.5°C.
A particle of mass M moves in one dimension along the positive x axis, under the influence of two forces. The first force is a constant force, with magnitude B and direction toward the origin. The second force is an inverse square law, with magnitude..
What is the magnitude of the vertical component of its velocity as it strikes the ground.
A small metal bead, labelled A, has a charge of 29 nC. It is touched to metal bead B, initially neutral, so that the two beads share the 29 nC charge, but not of necessity evenly. When the two beads are then placed 5.0 {rm cm} apart, the force betwee..
Find out the potential difference between r2 and r1
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