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Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s
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Physics, 21.06.2019 20:50
Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t β 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.
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When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative
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Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy
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