Author Question: Two astronauts, with masses 60. and 80. kg, are initially at rest in outer space. They push each ... (Read 75 times)

karlynnae · **on:** Jul 27, 2018

Two astronauts, with masses 60. and 80. kg, are initially at rest in outer space. They push each other apart. How far has the heavier astronaut moved when the lighter astronaut has moved 12. m?

A) 12. m
B) 9.0 m
C) 16. m
D) 21. m
E) 7.0 m

Question 2

At a certain point in space there is a potential of 400 V. What is the potential energy of a +2-C charge at that point in space?

A) 80 10-6 J
B) 800 J
C) 400 J
D) 200 J
E) 8 10-4 J