Which statement describes the energy transformation that occurs when a person eats a sandwich to gain energy for a long hike? O A. Thermal energy is transformed into kinetic energy. B. Chemical energy is transformed into kinetic energy. O C. Thermal energy is transformed into chemical energy. o D. Chemical energy is transformed into potential energy.

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .