A 250 g rubber ball hits the floor at 10.0 m/s and rebounds at 6.0 m/s. Calculate the impulse imparted on the ball.

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

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?