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Humans have known about magnets ____________________ A. since the 12th century. B. since 1750. C. since 1902. D. for more than 2000 years
Humans have known about magnets FOR MORE THAN 2000 YEARS.
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Asked 4/2/2014 5:48:17 PM
Updated 4/2/2014 6:06:26 PM
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Humans have known about magnets FOR MORE THAN 2000 YEARS.

Added 4/2/2014 6:06:26 PM
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Questions asked by the same visitor
Solve the system of equations by using substitution. –2x + 3y = 7 4x – 6y = 8 A. y = –22, x = 29.5 B. y = –22, x = –36.5 C. y = –22, x = –31 D. no solution
Question
Updated 3/26/2014 10:48:56 PM
1 Answer/Comment
–2x + 3y = 7,
-2x = 7 - 3y
x = (3/2)y - 7/2
Replace x in the equation 4x – 6y = 8, then 4(3/2y - 7/2) - 6y = 8
6y - 14 - 6y = 8, the simplified form is 0 = 22 which is not true.
Therefore, the solution for –2x + 3y = 7 4x – 6y = 8 is D. no solution.
Added 3/26/2014 10:48:56 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [3/26/2014 10:49:56 PM]
Translate the following into Latin: I carry
Weegy: I carry in Latin is: porto (More)
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Expert Answered
Updated 3/29/2014 10:54:16 AM
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The Doppler Effect due to the moving of the source of a sound is the same as the Doppler Effect due to the moving of the listener. A. True B. False
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Updated 3/31/2014 7:04:16 AM
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The Doppler Effect due to the moving of the source of a sound is the same as the Doppler Effect due to the moving of the listener.
True.
Added 3/31/2014 7:04:16 AM
This answer has been confirmed as correct and helpful.
At the edges of overlapping circular waves, interference produces a V shape called a ______________ A. bow wave. B. shock wave. C. sonic boom. D. Doppler Effect
Weegy: At the edges of overlapping circular waves, interference produces a V shape called a BOW WAVE. (More)
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Updated 3/31/2014 7:35:20 AM
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When a pathway through which charges can move forms suddenly, you get ____________________________ A. electrical force. B. electrical field. C. electrical discharge. D. induction
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Updated 4/1/2014 5:34:25 AM
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When a pathway through which charges can move forms suddenly, you get electrical discharge.
Added 4/1/2014 5:34:25 AM
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