8. (-/2 Points] DETAILS
OBINPHYS8 3.Q.017.
A spring is stretched by an initial amount from its relaxed state. If the spring is then stretched by five times that amount from its relaxed state,
by what factor does the amount of mechanical energy stored in the spring change?
PE final
PE initial

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.

If you put a helium-filled balloon in the refrigerator, what will happen?