What is the relationship between the magnitudes of the collision forces of two vehicles, if one of them travels at a higher speed?

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.)

What type of nuclear decay causes the atomic number of an element to increase by 1?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane