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A ball moving at 13 m/s makes an off-center elastic collision withanother ball of equal mass that is initially at rest. The incoming ball is deflected atan angle of 71? from its original direction of motion.
A. Find the speed of the first ball after the collision.B. Find the speed of the second ball.
An automobile starter motor has an equivalent resistance of 0.0660 ? and is supplied by a 12.0-V battery with a 0.0170-? internal resistance. What is the current to the motor
a camera lens with a focal length of 50mm and aperture of f1.4 is used to image a scene. the photographer focuses the
A 91-kg man’s thighbone has a relaxed length of 0.50 m, across-sectional area of 7.0 x 10^–4 m^2, and a Young’s modulus of 1.1 x10^10 N/m^2. By how much does the thighbone compress when the manis standing on both feet?
q1. after falling from rest from a height of 35 m a 0.58-kg ball rebounds upward reaching the height of 26 m. if the
You sing into a well and find that the well resonates at frequencies of 220 Hz and 260 Hz with no resonances between these two frequencies. What is the depth of the well
The plate on the back of a certain computer scanner says that the unit draws 0.44A of current from a 120V , 60Hz line. Find the root-mean-square current
An ideal gas is confined to a container with constant volume. The number of moles is constant. By what factor will the pressure change if the absolute temperature triples
A 2500 kg truck moving at 10 m/s strikes a car waiting at a traffic light, hooking bumpers. What was the mass of the struck car
An object is projected horizontally at 8.0m/s from the top of a 122.5 m cliff. How far from the base of the cliff will the object strike the ground
A 27.0-kg child on a 3.00-m-long swing is released from rest when the ropes of the swing make an angle of 35.0° with the vertical, Neglecting friction, find the child's speed at the lowest position
What factors affects a team cohesiveness? If you were a team leader, how to be more and foster better relationships among team members?
Josh starts his sled at the top of a 3.0 m high hill that has a constant slope of 25°. After reaching the bottom, he slides across a horizontal patch of snow. How far from the base of the hill does he end up
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