____ are located beyond the asteroid belt (3 AU) from the sun, have extremely large masses and very low densities
a. Comets
b. Extrasolar planets
c. Asteroids
d. Terrestrial planets
e. Jovian planets
E
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What is the primary reason why scientists accept the idea that the speed of light is the same for everyone?
A) because it has been verified by many observations and experiments B) because it makes sense when you think about it as Einstein did C) because no one has come up with a better idea about the speed of light D) because the theory is just so darn cool, it can't be wrong
The attraction between like substances, stickiness, is called
A) adhesion. B) cohesion. C) depends on the substances.
Higher mass protostars enter the main sequence:
A) faster and at a higher luminosity and temperature. B) faster and at a lower luminosity and temperature. C) slower and at a higher luminosity and temperature. D) slower and at a lower luminosity and temperature. E) at the same rate, but at a higher luminosity and temperature.
If point A is located at coordinates (–10, 7) and point B is located at coordinates (8, –8), what is the distance from A to B if the units of the coordinated system are meters?
a. 549 m b. 23 m c. 28 m d. 33 m e. 26 m