The centers of two 15.0 kg spheres are separated by 3.00 m. the magnitude of the gravitational force between the two spheres is approximately what?
a) 1.11 × 10^-10 n
b) 3.34 × 10^-10 n
c) 1.67 × 10^-9 n
d) 5.00 × 10^-9 n

Which is not a step in the rock cycle?

Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up