The basic building block of life is

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

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?