Compared to the star it evolved from, a red giant is
A) hotter and dimmer.
B) the same temperature and brightness.
C) cooler and brighter.
D) cooler and dimmer.
E) hotter and brighter.
C
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The overall result of the proton-proton chain is ________
A) 6 H becomes 1 He + energy B) p + p becomes 2H + energy C) 4 H becomes 1 He + energy D) individual protons are joined into long chains of protons
A gas that expands adiabatically
1.experiences no temperature change. 2.has no work done on it and does no work. 3.experiences no change in internal energy due to energy transfer by heat 4.increases in temperature.
A slice of bread contains about 90 kcal. If specific heat of a person were 1.00 kcal/kg•°C, by how many °C would the temperature of a 70.0-kg person increase if all the energy in the bread were converted to heat?
a. 2.25°C c. 1.43°C b. 1.86°C d. 1.29°C
The determination of the composition of a material by bombarding it with neutrons and monitoring the emitted radiation is __________
Fill in the blank(s) with correct word