In a certain material there is a current of 18 A flowing through a surface to the right, and there is an equal amount of positive and negative charge passing through the surface producing the current. How much negative charge passes through the surface?
a. 9 C/s toward the right
b. 9 C/s toward the left
c. 18 C/s toward the right
d. 18 C/s toward the left
e. 36 C/s toward the left
b
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If the Moon was twice as far away from the Earth as it is currently what would happen to total solar eclipses?
We would have more total solar eclipses. Nothing would change. We would have no total solar eclipses. We would have a total solar eclipse every two years.
A standard exam page is 8.5 inches by 11 inches. An exam that is 2.0 mm thick has a volume of
a. 1.9 × 10^4 mm3. b. 4.7 × 10^4 mm3. c. 1.2 × 10^5 mm3. d. 3.1 × 10^5 mm3. e. 3.1 × 10^3 mm3.
When a gas undergoes an isothermal process, there is
A) no work done by (or on) the gas. B) no heat added to the gas. C) no change in the volume of the gas. D) no change in the temperature of the gas. E) no change in the pressure of the gas.
The Higgs field is best described as a field that