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A 1110-kg van, stopped at a traffic light, is hit directly inthe rear by a 725-kg car traveling with a velocity of +2.97 m/s.Assume that the transmission of the van is in neutral, the brakesare not being applied, and the collision is elastic. What is the final velocity of
(a) the car and
(b) the van?
3 amperes of current flow through a wire. What net charge flows past a point in the wire each second
Two automobiles are equipped with the same single frequency horn. What is the frequency the horns emit
A solid sphere is released from rest on an incline. When it reaches the bottom, what fraction of its total kinetic energy is rotational
A 1000-turn coil of wire that is 2.4cm in diameter is in a magnetic field that drops from 0.12T to 0T in 11ms. What is the emf of the coil
A rock is suspended from the string and moves downward at constant speed. Which statement is true concerning the tension in the string if air resistance is ignored.
A child's top is held in place, upright on a frictionless surface. The axle has a radius of r= 2.21 mm. Two strings are wrapped around the axle, How much angular momentum does the top acquire
A copper pot sits on a hot plate that is at a remperature of 140 C, How long before one half the pots contents evaporate
question1a offer an instance of one alternative renewable energy source.b write down an energy transformation equation
An organ pipe is open at both ends. The frequency of the fourth harmonic is 316 Hz higher than the frequency of the third harmonic. what is the length of the organ pipe
Find the speed of a satellite moving in a circular orbit just above the surface of The Earth. The Earth has a radius of 6.38 106 m and a mass of 5.97 1024 kg
A 70 kg crate is pushed at constant speed up the frictionless 35° ramp shown in the figure. What horizontal force F is required? What force is exerted by the ramp on the crate
question1 two boxes of equal mass m are placed one on top of each other. in case 1 an applied force acts on box b while
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