Which of the following is an advantage of sexual reproduction is that a. it produces offspring with variations b. it produces offspring with no variations c. it produces offspring with few diseases d. it produces offspring with twice the genetic information of their parents

Newton's law of universal gravitation states that the force f between two masses, m1 and m2, is given below, where g is a constant and d is the distance between the masses. find an equation that gives an instantaneous rate of change of f with respect to d. (assume m1 and m2 represent moving points.)

The softest and hardest minerals are: softest hardest

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?