a car accelerates from 4 meters/second to 16 meters/second in 4 seconds. the car's acceleration is
meters/second^2

3m/s^2

Explanation:

The equation of motion is given by:

V=U +at where V is the final velocity, U is the initial velocity, a is the acceleration and t is the time for which the object underwent acceleration.

16=4 + a*4;

Solving for a gives a = 3m/s^2

B. a circuit. i think

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.