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

Physics & Space Science

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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

Physics & Space Science

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

Physics & Space Science

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.

Physics & Space Science

Spiral galaxies have more gas, dust, and young stars than elliptical galaxies

Indicate whether the statement is true or false

Physics & Space Science