Physics, 19.11.2019 00:31 fernandofhn1844
Abicycle rider has a speed of 19.0 m/s at a height of 55.0 m above sea level when he begins coasting down hill. the mass of the rider and his bike is 88.0 kg. sea level is the zero level for measuring gravitational potential energy. ignoring friction and air resistance, what is the rider’s total mechanical energy when he coasts to a height of 25.0 m above sea level
Answers: 2
Physics, 21.06.2019 19:30, ggdvj9gggsc
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, 21.06.2019 22:30, nolandh7940
The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
Answers: 1
Physics, 22.06.2019 08:30, fernandoramirez086
Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
Answers: 3
Abicycle rider has a speed of 19.0 m/s at a height of 55.0 m above sea level when he begins coasting...
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