What is the force that keeps a main sequence star from blowing apart?
A) magnetism
B) gravitation
C) the strong force
D) radiation pressure
E) electron degeneration pressure
B
You might also like to view...
The cratered surfaces of Saturn's moons may look like our moons, but in reality they are made chiefly of ________
Fill in the blank(s) with correct word
Lunar eclipses can occur only during a
A) new Moon. B) first quarter Moon. C) full Moon. D) third quarter Moon.
As you move farther away from a source emitting a pure tone, the frequency of the sound you hear decreases
Indicate whether the statement is true or false
Two bulbs are shown in a circuit that surrounds a region of increasing magnetic field directed out of the page. When the switch is open,
A. bulb 1 is glowing; bulb 2 is dark. B. bulb 2 is glowing; bulb 1 is dark. C. both bulbs glow equally brightly. D. both bulbs glow one half as brightly as they do with the switch closed. E. both bulbs are dark.