Two light bulbs, a thick-filament one and a thin-filament one, are connected in parallel to a battery. The voltage is greater across the lamp with the
A) thick filament.
B) thin filament.
C) same for each
Answer: C
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Most of the asteroids orbit the Sun in a belt between the orbits of
a. Venus and Earth. b. Earth and Mars. c. Jupiter and Saturn. d. Mercury and Venus. e. Mars and Jupiter.
Which of the following is not true about potential energy?
a. Potential energy is stored energy. b. Potential energy is related to position. c. Potential energy is a scalar quantity. d. Potential energy has direction.
A planet whose distance from the Sun is 3 A.U. would have an orbital period of how many Earth-years?
A) 3 B) C) D) 9 E) 81
Light of a wavelength of 661.1 nm is received from a star that is emitting light of a wavelength of 659.6 nm. How fast is the star moving relative to the earth and is it moving toward or away?
A. -580 km/s away B. 580 km/s away C. -680 km/s away D. 680 km/s away