1. Why do satellites not need to fire their rockets once they’re in orbit? 2. A 1kg hockey puck is passed along the frictionless ice at a constant 8 m/s. Once the puck is moving, how much force is needed to keep a hockey puck going at a constant velocity of 8 m/s?

1.A satellite maintains its orbit by balancing two factors: its velocity and the gravitational pull that Earth has on it.

I'm sorry I only know the first one

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.