A person weighing 200 pounds stands on snowshoes. If the area of each snowshoe is 400 square inches, the pressure on the snow is __________ psi
Fill in the blank(s) with correct word
0.25
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A planet with an albedo of 10 percent absorbs 10 percent of the sunlight that strikes it and reflects the other 90 percent
Indicate whether the statement is true or false
Process of Science: The theory of special relativity is one of the most tested theories in physics and has now been completely proven beyond all doubt
Indicate whether the statement is true or false
Why are galaxies in the blue cloud blue?
A) They contain hot, young stars that signify active star formation. B) They are moving slower than stars in the red cloud. C) They contain lots of dust that cause the bluish color. D) They contain cold, dying stars that are fading to black.
Which terrestrial planet is the least dense?
A. Mercury B. Mars C. Earth D. Venus