20 m/s can be an answer for velocity true or false

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)

What structural formula represents 4 electrons shared between two atoms?