According to our theory of solar system formation, what three major changes occurred in the solar nebula as it shrank in size?
A) It got hotter, its rate of rotation increased, and it flattened into a disk.
B) Its mass, temperature, and density all increased.
C) It gained energy, it gained angular momentum, and it flattened into a disk.
D) Its gas clumped up to form the terrestrial planets, nuclear fusion produced heavy elements to make the jovian planets, and central temperatures rose to more than a trillion Kelvin.
A) It got hotter, its rate of rotation increased, and it flattened into a disk.
You might also like to view...
During an isothermal process, 5.0 J of heat is removed from an ideal gas. How much work does the gas do during this process?
A) 0.00 J B) 2.0 J C) 5.0 J D) -5.0 J E) 10 J
Who demonstrated that when heat is gained or lost by a system during some process, the gain or loss can be accounted for by an equivalent quantity of mechanical work done on the system?
a. Joule b. Boltzmann c. Thompson, Count Rumford d. Kelvin
Two thermometers are calibrated, one in degrees Celsius and the other in degrees Fahrenheit. At what temperature (in kelvins) do their readings measure the same temperature?
a. 218.15 b. 233.15 c. 273.15 d. 40.15 e. 0
A heat pump has a coefficient of performance that is 60% of the Carnot heat pump coefficient of performance. The heat pump is used to heat a home to 24.0°C during the winter with the low temperature reservoir at the outdoor temperature
At which outdoor temperature would it be more efficient to add the energy directly to the interior of the home than use it to run the heat pump? A) -25.2°C B) -154°C C) -40.0°C D) -83.4°C E) -4.00°C