A projectile that is fired vertically at 8 km/s from Earth's surface will
A) go into circular orbit about Earth.
B) rise and fall back to Earth's surface.
C) follow an uncertain path.
D) escape from Earth.
Answer: B
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Which best describes the surface of Callisto?
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Fill in the blank(s) with correct word
A 6.0-?F air-filled capacitor is connected across a 100-V potential source (a battery). After the battery fully charges the capacitor,
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