What is the angle of refraction at the air/glass boundary for trial 2?
Angle of incidence = 45 degrees | Angle of refraction =

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.

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