Jeffrery is on his skateboard and starts skating down a ramp. ten seconds later he is travelling at 20.0 m/s. what was his acceleration? (round to 2 decimal places)

Suppose that recording station n is located 200 km north of the epicenter of an earthquake, and recording station s is located 100 km south of the epicenter of the same earthquake. which of the following statements would be true?

If we relied solely on the nonrenewable resources found in the u.s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal

If the area of a square has increased by a factor of 16, by how much has each side increased?