An 81.7-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is 0.48. (a) What is the magnitude of the frictional force

How do you tell if someone actually cares about you? and just say they do?

The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.

The discovery of the electron as a subatomic particle was a result of