Outside the space shuttle, you and a friend pull on two ropes to dock a satellite whose mass is 900 kg. The satellite is initially at position < 4.0, -1.6, 3.0 > m and has a speed of 5 m/s. You exert a force < -600, 300, 250 > N. When the satellite reaches the position < 2.7, 2.6, 6.0 > m, its speed is 6.51 m/s. How much work did your friend do? Work done by friend = J

What are similarities and differences of reflection, refraction, diffraction and absorption?

The air that we breath is made mostly of which gaseous molecule

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above