If work is done on an electric charge, a ______________ is present
a. resistance
b. current
c. voltage
d. transformer
e. bigger charge
c
You might also like to view...
What factors are important when trying to classify a spiral galaxy?
a. Amount of dust and gas in the galaxy b. Structure of the spiral arms c. Size of the central region d. All of the above
Based on current evidence, how does the actual average density of matter in the universe compare to the critical density?
A) The actual density, even with dark matter included, is less than about a third of the critical density. B) If we include dark matter, the actual density equals the critical density. C) The actual density of dark matter and luminous matter combined is no more than about 1% of the critical density. D) The actual density of matter is many times higher than the critical density.
The speed of waves in stretched string depends on which of the following?
A. the tension in the string B. the amplitude of the waves C. the wavelength of the waves D. the frequency of the waves
Suppose you see a photo showing Jupiter half in sunlight and half in shadow (that is, a first quarter Jupiter). This photo might have been taken by
A) the Galileo spacecraft that orbited Jupiter in the 1990s. B) the Hubble Space Telescope (which orbits Earth). C) the Keck Telescope on Mauna Kea, Hawaii. D) the Arecibo Radio Telescope in Puerto Rico.