Derive an expression for the energy needed to launch an object from the surface of earth to a height h above the surface. ignoring earth's rotation, how much energy is needed to get the same object into orbit at height h? express your answer in terms of some or all of the variables h, mass of the object m, mass of earth me, its radius re, and gravitational constant g.
Answers: 3
Physics, 21.06.2019 19:20
Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?
Answers: 1
Physics, 22.06.2019 18:30
In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents
Answers: 1
Physics, 23.06.2019 00:30
Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero
Answers: 3
Derive an expression for the energy needed to launch an object from the surface of earth to a height...
History, 22.09.2020 14:01
Chemistry, 22.09.2020 14:01
Physics, 22.09.2020 14:01
Biology, 22.09.2020 14:01
Chemistry, 22.09.2020 14:01
Mathematics, 22.09.2020 14:01
Law, 22.09.2020 14:01
Biology, 22.09.2020 14:01
History, 22.09.2020 14:01
Mathematics, 22.09.2020 14:01
Computers and Technology, 22.09.2020 14:01