2. Calculate the acceleration due to gravity (a) on the surface of the earth and (b) 3500 km above the surface of the earth. The mass of the earth is 597 x 10*24 kg. The radius of the earth is 638 * 10*6 m

In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than