Which was the first object made by humans to orbit earth?

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

Explain why you think this diagram shows what happened to the carbon in the biodome.

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car