The law of ________________ states that energy must flow from _________ temperature regions to __________ temperature regions
Fill in the blank(s) with correct word
energy transport, hot, cool
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An automobile accelerates from zero to 30 m/s in 6.0 s. The wheels have a diameter of 1.0 m. What is the average angular acceleration of each wheel?
a. 5.0 rad/s2 c. 25 rad/s2 b. 10 rad/s2 d. 40 rad/s2
In units of yards, how far from the Big Bang is the Recombination period, when the gas becomes transparent to light?
a. much, much less than a yard b. about a yard c. about 5 yards d. about 10 yards
The standard unit of volume in the
International System is a) cubic meter b) milliliter c) liter d) centimeter
The isotope 238U, which starts one of the natural radioactive series, decays first by alpha decay followed by two negative beta decays. At this point, what is the resulting isotope?
a. 234Th (Z = 90 for Th.) b. 236U c. 238U d. Some other uranium isotope not given above.