Acar is traveling at 10 m/s and speeds up to 30 m/s within 10 seconds. what is the car's acceleration in m/s2?

Why are biogeochemical cycles important? earth is a closed system. that means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on so, it is essential that biogeochemical these materials as they move through earth's subsystems.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve