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what is a black hole?
A black hole is an area of space-time with a gravitational field so intense that its escape velocity is equal to or exceeds the speed of light.
Expert answered|andrewpallarca|Points 28895|
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Asked 1/7/2014 12:29:55 PM
Updated 1/7/2014 12:58:35 PM
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Confirmed by jeifunk [1/7/2014 12:58:35 PM]
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define angst?
Weegy: Angst means fear or anxiety (anguish is its Latinate equivalent, and anxious, anxiety are of similar origin). ] (More)
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Asked 1/5/2014 12:08:34 PM
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what is a trapezoid?
Weegy: a. Four sides b. at least one pair of opposite sides are parallel c. angles between pairs of parallel sides are supplementary (More)
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Updated 1/5/2014 2:07:44 PM
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A trapezoid is a 4-sided flat shape with straight sides that has a pair of opposite sides parallel.

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how do you calculate the volume of a sphere?
Weegy: Calculate the volume of a sphere by - - The volume of a sphere is 4/3 pi times the cube of its radius. (More)
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Asked 1/5/2014 1:30:35 PM
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what is the kelvin scale?
Weegy: One degree Kelvin is the same as one degree Celsius, the two scales simply differ on what they use as the zero value (for the Kelvin scale it's absolute zero, on the Celsius scale it's the freezing point of water). [ ........... ] (More)
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Updated 1/5/2014 5:37:14 PM
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Kelvin is a temperature scale designed so that zero degrees K is defined as absolute zero (at absolute zero, a hypothetical temperature, all molecular movement stops - all actual temperatures are above absolute zero) and the size of one unit is the same as the size of one degree Celsius.

Added 1/5/2014 5:37:14 PM
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what does LOL mean?
Weegy: LOL means laugh out loud, it is commonly used in internet slang. (More)
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Asked 1/5/2014 5:11:30 PM
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