Does all energy travel in waves

Picture a all traveling at a constant speed around the inside of a circular structure. is the ball accelerating? explain your answer

What is the role of the ocular lens?

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