Determine the specific heat of a certain metal if a 450 gram sample of it loses 34 500 Joules of heat as
its temperature starts at 150 °C and drops to 53 °C.

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

The same side of the moon always faces earth because the