The specific gravity of upper mantle rock is: a. 2.7 b. 3.0 c. 3.3 d. 5.5

Explain what happens at the saturation point when adding salt to water at room temperature.

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

The law of reflection states that the angle of reflection is equal to the angle of