A picture that shows magnets that will repel

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

The velocity of a car traveling in a straight line increases from 0 meters/second to 30meters/second in 8 seconds. what is the average acceleration of the car?

If the wavelength is tripled, while the speed of the wave is held constant, what happens to the frequency?