Static charge can build up quickly on an object ________
a. during days when the conditions are not humid
b. when the object is in good electrical contact with the ground
c. only when it is in contact with a good conductor
d. only when the object is moving
a
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On which temperature scale is 212 degrees the boiling point of water?
A) Celsius B) Caloric C) Kelvin D) Fahrenheit E) none of the above
A cool, thin gas produces absorption lines
Indicate whether the statement is true or false
Resolution: Suppose your telescope has perfect mirrors and is limited only by diffraction. If you are viewing with light of 400 nm wavelength, what diameter mirror in a space telescope would have 1.0-km resolution of objects on Mars when viewed from above the earth at a time when the Earth-Mars distance of 80 million kilometers?
A. 39 km B. 3.9 m C. 3.9 km D. 39 m E. 390 m
What would be the greatest effect on the ideal gas law if there is a slight attractive force between the molecules?
A) At low temperatures, the pressure would be less than that predicted by the ideal gas law. B) At low temperatures, the pressure would be greater than that predicted by the ideal gas law. C) At high temperatures, the pressure would be greater than that predicted by the ideal gas law. D) At high temperatures, the pressure would be less than that predicted by the ideal gas law. E) There is no effect.