A single force, called force, can be used to replace a of forces that act on a body. If the resultant force is then the body will either remain at or continue to move at
a constant .
If the resultant force is in the same as an object’s motion, the object will . A car is
decelerated when the braking force acts in the direction to the car’s motion.
Forces always occur in . If a force is exerted on an there will always be another force,
same in size, acting in the opposite direction.

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

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.

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.