The expansion of the universe is detected: a) inside the milky way d) in globular clusters b) inside the local group e) none of the above c) in the solar system

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone