Physics, 12.07.2019 20:40 JocelynC7237
A62.0-kg woman runs up a flight of stairs having a rise of 4.28 m in a time of 4.20 s. what average power did she supply? a) 63.2 w b) 619 w c) 596 w d) 629 w e) 609 w
Answers: 1
Physics, 21.06.2019 19:30
A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
Answers: 1
Physics, 22.06.2019 17:50
Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?
Answers: 1
Physics, 22.06.2019 21:50
Ajoint produces movement when its angle decreases. which type of movement is it?
Answers: 1
Physics, 23.06.2019 02:30
Which lists the amplitudes of sound waves from these sources in order from greatest to least? busy roadway, kids whispering, average home chainsaw, diesel truck, rustling leaves kids whispering, vacuum cleaner, jet airplane library, conversational speech, music from speaker
Answers: 1
A62.0-kg woman runs up a flight of stairs having a rise of 4.28 m in a time of 4.20 s. what average...
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