A 50 kg skater pushed by a friend accelerates 5 m/s^2. how much net force did the friend apply?

Ture or false evidence for evolution includes millions of fossils

Sperm are ejaculated from the corpora cavernosa of the penis. true or false

The picture below shows two galaxies. spiral galaxy and elliptical galaxy which of these statements best describes a similarity between the two galaxies? (2 points) both have elongated centers. both have centers shaped like bars. both change their shape from time to time. both are held together by gravitational forces.