Physics, 13.01.2020 19:31, hemolelekeakua
An object moving with a speed v0 collides head-on with a second object initially at rest. a student assumes the collision is elastic and calculates the speeds of the two objects and the speed of the center of mass of the objects after the collision. if the student assumes the collision was perfectly inelastic, how would that change the way the student calculated the list values?
a. the student only uses conservation of kinetic energy for inelastic collisions, but used both conservation of kinetic energy and momentum for elastic collisions
b. the student only uses conservation of momentum for inelastic collisions, but used both conservation of kinetic energy and momentum for elastic collisions
c. the student only uses conservation of kinetic energy for the final speeds of the two objects in inelastic collisions, but only uses conservation of momentum for speed of the center of mass
d. the student only uses conservation of momentum for the final speeds of the two objects in inelastic collisions, but only uses conservation of kinetic energy for speed of the center of mass
e. the student only uses conservation of momentum for the final speeds of the two objects in elastic collisions, but only uses conservation of kinetic energy for speed of the center of mass
Answers: 2
Physics, 22.06.2019 10:00, starsinopoli13
How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.
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Physics, 22.06.2019 12:40, live4dramaoy0yf9
Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)
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Physics, 22.06.2019 18:30, yuvraj2298
Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)
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An object moving with a speed v0 collides head-on with a second object initially at rest. a student...
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