What is the approximate diameter of Earth in miles given the information provided in the figure caption: "Earth spills over the edges of this photograph at a scale of 10^7 meters"?
a. 10,000 mi
b. 6,000 mi
c. 3,000 mi
d. 1,000 mi
b
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The gravitational Force between two objects decreases if you __________ their mass or _________ the distance between them.
Fill in the blank(s) with the appropriate word(s).
The big bang happened everywhere in the Universe at the same time
a. True b. False Indicate whether the statement is true or false
A possible means of spaceflight is to place a perfectly reflecting aluminized sheet into Earth orbit and use the light from the Sun to push this solar sail. If a huge sail of area 6.00 × 10^5 m2 and mass 6000 kg were placed into orbit and turned toward the Sun, what would be the force exerted on the sail? (Assume a solar intensity of 1380 W/m2.)
An American football field, including end zones, is 360 feet long and 160 feet wide. If you needed to describe it for someone in Europe using the metric system,
which one of the following quantities would be closest to its area in square meters? (2.54 cm = 1.00 in.) A) 4,920 m2 B) 5,350 m2 C) 88.0 m2 D) 12,100 m2 E) 13,200 m2