What causes the blue appearance of the planet Uranus?

A. The composition of Uranus's atmosphere is the same as Earth's atmosphere that makes the sky blue.
B. Uranus's atmosphere contains methane that strongly absorbs red colors from the sunlight.
C. The planet is covered by an ocean of water.
D. The planet is very cold.


Answer: B

Physics & Space Science

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Conduction: If, with steady state heat flow established, you double the thickness of a wall built from solid uniform material, the rate of heat loss for a given temperature difference across the thickness will

A. become one-half its original value.
B. also double.
C. become one-fourth its original value.
D. become 1/ of its original value.
E. become four times its original value.

Physics & Space Science

Which of the terrestrial planets have the most similar atmospheric compositions?

A. Venus and Mars B. Mercury and Venus C. Earth and Mercury D. Earth and Venus E. Earth and Mars

Physics & Space Science

What current must be maintained in a square loop (50 cm on a side) to create a torque of 1.0 N ? m about an axis through its center and parallel to one of its sides when a magnetic field of magnitude 70 mT is directed at 40° to the plane of the loop?

A. 66 A B. 89 A C. 61 A D. 75 A E. 37 A

Physics & Space Science

the triple alpha process is one in which?

What will be an ideal response?

Physics & Space Science