This rocket started at rest on the lunch pad. At a certain point in the time, WATER with a mass of 2 kg was coming out of the rocket with velocity of 10 m/s. If the ROCKET has a mass of 5 kg, what is the velocity of the rocket?

A - 20 m/s
B -0.25 m/s
C 1000 m/s
D 4 m/s

Which of the following is an example of motion in two dimensions?

The material that keeps its new shape after it is stretched is called?

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.