Raul wants to investigate how the angle of a ramp affects the speed of an object rolling down the ramp. He can conduct his investigation in a number of different ways. Which investigation should he perform? observe different bicyclists riding down hills of varying steepness
record the time it takes one bicyclist to ride down hills of varying steepness
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
observe video of various objects rolling down hills and estimate the angle of the hill and the speed of the object

What is a traditional chinese touch therapy involving finger pressure applied to specific areas of the body to restore the flow of qi.

Benito is doing research on the effects of florida's elevation on its climate. his notes include the following: 1. the average elevation of florida is 30 m above sea level. 2. the highest point in florida is britton hill, which is 105 m above sea level. 3. the change in temperature from 0 m to 1,000 m is 7 °c. what can benito conclude about the effects of florida's elevation on its climate? a.) florida typically experiences cold temperatures and temperature changes within a narrow range. b.) florida typically experiences cold temperatures and temperature changes within a broad range. c.) florida typically experiences warm temperatures and temperature changes within a narrow range. d.) florida typically experiences warm temperatures and temperature changes within a broad range.

Suppose you could go back in time to interview henri becquerel on the day he discovered radioactivity. from his perspective, write an account of the discovery.