A70-kg astronaut is space walking outside the space capsuleand is stationary when the tether line breaks. as a means of returning to the capsule he throws his 2.0 kg space hammer at a speed of 14 m/s away from the capsule. at what speed does the astronaut move toward the capsule?

0.4 m/s

Explanation:

Law of conservation of momentum tell us that the change in momentum of the hammer will be equal to the change in momentum of the astronaut

change in momentum of hammer = change in momentum of astronaut

2 kg (14 m/s - 0 m/s) = 70 kg * (v-0)

                                v  = 0.4 m/s

the results is a decrease in air temperature with an increase of altitude.

explanation:

correct it is c.) b b