A model rocket engine of mass=800g fires its 12N engine for four seconds. Calculate the net force on the rocket , then its maximum speed, height and time to crash NO LINKS PLEASE

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points