As current flows through a uniform wire, the wire gets hotter because the electrons stop moving and therefore transform their lost kinetic energy into thermal energy in the wire
A) True
B) False
B
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Mars has a sufficient mass and a low enough temperature that water molecules could exist in its atmosphere as vapor. One reason Mars's atmosphere does not contain a significant amount of water vapor is that
a. Mars formed in a part of the solar nebula that lacked oxygen. b. Mars formed in a part of the solar nebula that lacked hydrogen. c. all of the water vapor was released in the impact that formed Deimos. d. ultraviolet radiation breaks the water molecule into less massive particles that can escape. e. the water molecule combines readily with chlorine to form hydrochloric acid.
Why do most jovian moons show the same face to their planet?
A) because the moons once had atmospheres B) because the entire solar nebula rotated in the same direction C) because of the law of conservation of angular momentum D) because of tidal forces acting on the moons E) No one knows; it is still a mystery.
At the time of a solar eclipse, the Moon is in ______________ phase
Fill in the blank(s) with correct word
Why is it important to realize that there is background radiation? Explain
What will be an ideal response?