Acar slows down from 30 m/s to rest in a distance of 85 m. what was its acceleration?

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

Use the illustration to describe how the electromagnetic spectrum changes as its frequency moves from radio waves to higher energy gamma waves in terms of wavelength and amplitude.

Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.