Each diagram shows a ball traveling from left to right. The position of the ball each second is indi cated. Rank the net forces from greatest to least required to produce the motion indicated in each diagram. Call right positive and left negative .

Contrast the force of gravity between these pairs of objects a 1 kg mass and a 2 kg mass that are 1 m apart and two 2 kg masses that are 1 m apart

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

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2