Which of the following statements is true (only one):
a. The growth rate of energy consumption has kept pace with GNP growth.
b. Oil use has expanded more than any other fuel since 1940.
c. We reached the point last year where we imported no oil.
d. Electricity use has actually fallen since 1975.
Question 2
Two identical balls are at rest side by side at the bottom of a hill. Some time after ball A is kicked up the hill, ball B is given a kick up the hill. Ball A is headed downhill when it passes ball B headed up the hill. At the instant when ball A passes ball B,
a. it has the same position and velocity as ball B.
b. it has the same position and acceleration as ball B.
c. it has the same velocity and acceleration as ball B.
d. it has the same displacement and velocity as ball B.
e. it has the same position, displacement and velocity as ball B.
Energy flows in a typical gasoline-powered car
Environmental Energy Flow
Geothermal energy and powers Earth’s systems
The oceans continue to absorb most of the excess energy trapped by greenhouse gases
The Great Spike in World Population Growth
Bacterial growth methods