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Q. A 5g lead bullet travelling at 370-m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet whilst the other half is transmitted to the tree, what is the increase in temperature of bullet?
Q. A sinusoidal wave travels along a string. The time for a particular point to move from maximum displacement to zero is 0.10 s. What are the (1) period and (2) frequency? (3) The wavelength is 3.00 m; what is the wave speed?
What are direction and magnitude of total velocity
A hot (70 C) lump of metal has a mass of 250 gm and a specific heat of .25 cal/gm-C. John drops the metal into a 500 gm calorimeter (specific heat of .10 cal/gm-C) containing 75 g of water at 20 C. Once they reach equilibrium, what will be the fin..
find the electric flux through the bottom of the car. What was the jogger's average speed in m/s.
A wheel moves forward for 2 seconds making two complete revolutions. The wheel rotates during an arc length of 8.2 meters.
The Apollo Lunar Module was used to create the transition from the spacecraft to the moon's surface and back. Consider the similar module for landing on the surface of Mars. Use conservation of mechanical energy to answer these questions.
A 60kg bicyclist rides his 7.8kg bicycle with a speed of 16m/s. How much work must be done by the brakes to bring the bike and rider to a stop.
A box slides down a ramp between a delivery area and soring area. You must determine the angle this ramp should have with the horizontal direction so that a 500 pound box takes 5.0 seconds to slide down the ramp starting from rest at the top. While t..
A barbell spins around a pivot at its center at A. The barbell consists of two small balls, each with mass 400 grams (0.4 kg), at ends of a very low mass rod of length d = .6 m. The barbell spins clockwise with angular speed 20 radians/s.
A 180kg hoop rolls along a horizontal floor so that the hoop's center of mass has a speed of 0.130m/s. How much work must be completed on the hoop to stop it.
Determine the power distribution in carrier and sidebands if the transmitted power is 1,000 W and mf = 1.
What is the target's speed just after the bullet emerges.What is the velocity v of the smaller fish before lunch.
A chair of weight 74.0 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 47.0 N directed at an angle of 41.0^circ below the horizontal and the chair slides along floor.
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