In a vacuum the speed of light waves compared to the speed of radio waves is
A. faster
B. slower
C. the same
C. the same
They are both electromagnetic waves and travel at the speed of light.
Physics & Space Science
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The ________ is the totality of all space, time, matter, and energy
Fill in the blank(s) with correct word
Physics & Space Science
Entropy: A container of ideal gas at STP undergoes an isothermal expansion and its entropy changes by 3.7 J/K. How much work does it do?
A. 0.0 J B. 1.0 × 103 J C. -1.0 × 103 J D. 1.4 × 103 J E. -1.4 × 103 J
Physics & Space Science
What is the visible surface of the Sun called?
A. the radiative zone B. the chromosphere C. the photosphere D. the corona
Physics & Space Science
The weight of air in a bathtub (about 1/3 cubic meter) is about the same as the weight of
A) a pea. B) an egg. C) a small apple. D) a pound of butter. E) a 10-pound sack of potatoes.
Physics & Space Science