Suppose that Democritus were alive today, and that he saw a bright red fire truck. He would say that
A) the color of the fire truck, and the atoms of which it is made, are equally real.
B) the color of the fire truck is more real than the atoms of which the truck is made.
C) the color of the fire truck is less real than the atoms of which it is made.
D) neither the color, nor the truck, nor the atoms are real.
C
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Saturn's cloud surface appears more uniform than Jupiter's because:
A) there is a thick outer cloud covering of water ice overlying the colorful ices. B) due to Saturn's lower gravity, the colorful cloud layers escaped. C) it is composed of completely different gases than Jupiter's. D) the cloud layers are thicker, allowing fewer holes to see the colorful layers. E) due to Saturn's greater distance from the Sun, the colorful cloud layers are just not visible.
It sure is bright everywhere; you've been able to travel around a bit, and it's clear that you are not in a star. Yet it is as bright as looking directly at the Sun
In your extensive travels through your current surroundings, you cannot find a single neutral atom anywhere, nor can you find a nucleus besides hydrogen or helium. And, while it is hot (a few thousand degrees Kelvin), it is nowhere near the temperature needed for nuclear fusion. Where are you? A) You are in the universe during its first 300,000 years. B) You are in the universe more than 10100 years in the future. C) You are in an accretion disk around a supermassive black hole. D) You are in the central regions of a quasar. E) You are where the Sun should be located, but about 5 billion years from now.
A 1.0-m long wire is carrying a certain amount of current. The wire is placed perpendicular to a magnetic field of strength 0.20 T. If the wire experiences a force of 0.60 N, what is the magnitude of the current moving through the wire?
A) 2.0 A B) 1.0 A C) 3.0 A D) 4.0 A E) 5.0 A
The vertical axis (Y-axis) of the Hertzsprung-Russell Diagram is labeled with _______________
Fill in the blank(s) with correct word