In 1638, the Italian scientist Galileo tried to work out the speed of light. What equipment did he use? What were his results? I REALLY need you help​

Answer quickly (15 points) a comet is approaching earth. describe earth’s gravitational pull as the comet gets closer to it. a. remain constant b. increase c. decrease d. reversed

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.