What's wrong with the statement "heat rises?"
a. Nothing—heat does rise.
b. One should say "energy rises.".
c. One should say "heated air (or other fluid) rises.".
d. none of the above
C
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Invented the modern spectroscope
A. Prism or A Diffraction Grating |
B. Annie Jump Cannon |
C. Temperature |
D. Spectroheliometer |
E. Continuous Spectrum |
F. Joseph Van Fraunhofer |
Two charged particles held a certain distance apart are released. As they move, the force on each particle increases. Therefore, their charges have
A) the same sign. B) opposite signs. C) the same mass. D) the same size. E) need more information
Consider the following statement, and explain whether or not it is sensible: Last night I saw Mars move westward through the sky in its apparent retrograde motion
What will be an ideal response?
Average speed multiplied by time gives
a. average acceleration. b. displacement. c. instantaneous speed. d. distance.