Alice and Bob are bicycle-racing, on a two-mile track. Bob rides the first mile at 50 mph, and the second mile at 71 mph. Calculate the time in minutes) that he travels the two
miles.

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

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

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.