Which of the following is true about gravity? check all that apply.  a. two objects experience a greater gravitational pull when they are closer together.  b. gravity causes objects in free fall to fall with constant velocity toward the center of the earth.  c. the force of gravity is greater for objects with more mass.  d. gravity is a natural force that causes pairs of objects to be pulled together.

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s