If a barometer were to be made using water as the liquid instead of mercury, the length of the barometer tube for water would be ________ than the tube for a standard mercury barometer.
What will be an ideal response?
longer
larger
greater
more
bigger
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Energy is transported through the Sun by ______________ and _____________
Fill in the blank(s) with correct word
Intensity: The intensity of the waves from a point source at a distance d from the source is I. At what distance from the sources is the intensity equal to 2I?
A. d/2
B. d/
C. d/4
D. d/8
During the time before fusion begins, a protostar's core gradually
A) shrinks and heats. B) shrinks and cools. C) shrinks and maintains a constant temperature. D) expands and cools.
The root-mean-square speed of molecules in a gas is:
A. the most probable speed B. that speed such that half the molecules are moving faster than vrms and the other half are moving slower C. the average speed of the molecules D. the square root of the square of the average speed E. none of the above