A rocket must be moving at least 11.2 km/s to break earth’s gravity. If a rocket starts from rest on the launchpad, what would best describe the motion it needs in order to reach orbit? (Space is 2000km from the surface of the planet). A)The rocket would have to have constant velocity for the entire trip.

B)The rocket must accelerate until it is traveling 11.2 km/s, in at least 2000km.

C)The rocket will need to decelerate rapidly

D)The rocket must make the trip in at least 5 minutes

20) what is a magnetic field? 21) in which direction do magnetic field lines always point? 22) sketch a diagram showing how a plotting compass points around a 23) name two magnetic poles that will: a) attract each other b) repel each other. 24) explain why you can use a compass to navigate. 25) what's an electromagnet? 26) list two ways to increase the strength of an electromagnet. 27) the wire in a simple motor feels a force when a current flows through it. why is this? i need answers to check mine