A 900-N person is standing on snowshoes. Each snowshoe has area 2500 cm2 and has negligible weight. What pressure does this person's exert on the snow due to his interaction with Earth?
A) 0.18 N/m2
B) 0.36 N/m2
C) 1800 N/m2
D) 3600 N/m2
C
Physics & Space Science
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If the diameter of a wire increases, its resistance __________
Fill in the blank(s) with correct word
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A swimmer heading directly across a river that is 200 m wide reaches the opposite bank in 6 min 40 s. During this swim, she is swept downstream 480 m. What is the speed of the current?
A) 0.50 m/s B) 0.80 m/s C) 1.2 m/s D) 1.4 m/s E) 1.8 m/s
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What do X-ray observations tell us about conditions around a potential nova?
What will be an ideal response?
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