In outer space rock 1, with mass 3 kg and velocity < 3900, -2700, 3600 > m/s, struck rock 2, which was at rest. after the collision, rock 1's velocity is < 3500, -2000, 4100 > m/s.

suppose the collision was elastic (that is, no change in kinetic energy and therefore no change in thermal or other internal energy of the rocks). in that case, after the collision, what is the kinetic energy of rock 2?

on the other hand, suppose that in the collision some of the kinetic energy is converted into thermal energy of the two rocks, where ethermal,1 + ethermal,2 = 2.52106 j. what is the final kinetic energy of rock 2?

in this case (some of the kinetic energy being converted to thermal energy), what was the transfer of energy q (microscopic work) from the surroundings into the two-rock system during the collision? (remember that q represents energy transfer due to a temperature difference between a system and its surroundings.)

Hey student studies gravity using objects that have the same mass which two objects have the greatest gravitational force acting between them a. 100kg 1.0m 100kg b. 100kg 2.0m 100kg c. 100kg 2.0m 100kg big d. 100kg big 3.0m 100kg big

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light