Which of the following controls the loudness of a sound? amplitude

wavelength

frequency

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

If steel is more dense that lake water, why can a boat float

Avehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road