Physics, 11.07.2019 23:30 shashayantie6556
Aforce f is used to raise a 4-kg mass m from the ground to a height of 5 m. what is the work done by the force f? (note: sin 60° = 0.87; cos 60° = 0.50. ignore friction and the weights of the pulleys.)
Answers: 2
Physics, 22.06.2019 19:30
Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.
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Which wave would cause destructive interference at every point of the wavelength and completely cancel out the wave?
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Once a sound recording is made, how is the sound reproduced? by converting passive sound waves into active sound waves by converting sound waves into electronic signals by converting the electronic signals back into sound waves by speeding up the stored sound waves
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Aforce f is used to raise a 4-kg mass m from the ground to a height of 5 m. what is the work done by...
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