What holds Earth satellites up so they don't crash into Earth?

A) gravity
B) centripetal force
C) centrifugal force
D) the absence of air resistance
E) nothing, they continually fall fast enough around Earth not to crash


Answer: E

Physics & Space Science

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When oxygen and hydrogen gases combine, the result is

A) water. B) methane. C) a noble gas.

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A circular coil of diameter 20. cm, with 16. turns is in a 0.13 Tesla field

(a) Find the total flux through the coil when the field is perpendicular to the coil plane. (b) If the coil is rotated in 10. ms so its plane is parallel to the field, find the average induced emf.

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The Moon's orbit around the Earth is tilted by about 5 degrees with respect to Earth's orbit around the Sun. As a result, the approximate number of solar eclipses that occur each year is approximately

A) 0. B) 24. C) 12. D) 2.

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The common name for CH4 is ______________

Fill in the blank(s) with correct word

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