The mass of the earth is 5.98 × 1024 kg. a 6.83 kg bowling ball initially at rest is dropped from a height of 2.12 m. the acceleration of gravity is 9.8 m/s^2. what is the speed of the earth coming up to meet the ball just before the ball hits the ground?
how do you solve this?

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

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

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.