Physics, 01.07.2019 23:20 lunaandrew332
Aspotlight on the ground shines on a wall 12 m away. if a man 2 m tall walks along the x-axis from the spotlight toward the building at a speed of 2.4 m/s, which is taken as the given dx/dt, how fast is the length of his shadow on the building decreasing when he is 4 m from the building?
Answers: 1
Physics, 22.06.2019 00:50
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?
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Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot
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In a system, when potential energy decreases, then entropy also decreases. true false
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Physics, 22.06.2019 16:00
The solid that is formed and usually sinks to the bottom of a solution is the
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Aspotlight on the ground shines on a wall 12 m away. if a man 2 m tall walks along the x-axis from t...
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