The sum of the baryonic and non-baryonic matter is 27.9% and thus equal to the critical density
a. True
b. False
Indicate whether the statement is true or false
False
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As with Uranus, the solar equator rotates slower than sunspots at higher latitudes
Indicate whether the statement is true or false
John and Linda are arguing about the definition of density. John says the density of an object is proportional to its mass. Linda says the object's mass is proportional to its density and to its volume. Which one, if either, is correct?
A. They are both wrong. B. John is correct, but Linda is wrong. C. John is wrong, but Linda is correct. D. They are both correct. E. They are free to redefine density as they wish.
Spiral galaxies have more gas, dust, and young stars than elliptical galaxies
Indicate whether the statement is true or false
An ideal gas is confined to a container with adjustable volume. The number of moles and temperature are constant. By what factor will the volume change if pressure quadruples?
a. 16 c. 1/4 b. 4 d. 1/16