Find the heat given out when 0.1kg of steam at 100°C condenses and cools to water at 50°C?

Does this your question?

I'm not sure what your asking buddy.. but i know that you can weld two peices of steel by pure force and pressure.

That depends on what kind of environ meant it is in  in space it has the same force that was applied when the velocity was gained

Answer it orbits high above earth to gain clearer images of light, it magnifies images relative to the human eye, it records most of the universe as it was in the past, not as it is now;