(HELP FAST)Isabel pushes a toy car, giving it kinetic energy. When this happens, what happens to the energy in her arm?

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Who examines and coordinates the cleanup of polluted sites?