Questions Answered

fmk__:
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I NEED HELP I DONT UNDERSTAND THIS. PLEASE ANYONE!!
Reflecting and refracting telescopes are used to gather radiation from space. Which o…
 updated one year ago
 7 replies
 1 Medal

Arcturas:
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Relativistic energy is sometimes derived in the following manner and I'm having trouble deciphering one mathematical step. So it goes like …
 updated one year ago
 9 replies
 2 Medals

Arcturas:
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I'm not sure if this question entirely belongs here but it is about physics and informatics/data analysis.
I've graphed some data pertai…
 updated one year ago
 1 reply
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nargles:
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Star 2 is 52 light years from Earth and 18 light years from Star 1. If Star 1 explodes as a supernova, in how many years would the explosion…
 updated one year ago
 3 replies
 1 Medal

misgymnast95:
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The frequency of a wave determines which of the following
loudness
reflection
…
 updated 2 years ago
 3 replies
 1 Medal

3psilon:
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p = ks and k is a constant
s = nt and n is a constant
How is p directly proportional to t? I don't get it
 updated 2 years ago
 4 replies
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bbren:
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write an equation in slopeintercept form of the line that passes through the given points (3,2),(6,1)
 updated 2 years ago
 3 replies
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Andreslvc:
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HELP!
calculate the lenght of the curve:
…
 updated one year ago
 3 replies
 2 Medals