Answer the 30th question as soon as possible

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

What do you think car designers do if the damage caused by a crash test is too severe?

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy