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gregori [183]
3 years ago
8

Which of these are chemical changes in matter? Check all that apply.

Chemistry
2 answers:
LenKa [72]3 years ago
6 0
I can not answer the question without the answer choices, when it is put up i will be able to answer the question. 
alina1380 [7]3 years ago
6 0

Answer are B,D, and E


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The answer is A: fleas and cats.
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A bobsled has a momentum of 4000 0 kg* m/s to the south. Friction on the track reduces its momentum to 500 kg* m/s to the south.
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A 1.50-kilogram ball is attached to the end of a 0.520-meter string and swung in a circle. The velocity of the ball is 9.78 m/s.
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Answer:

F centripetal force (tension) = 275.9  N

Explanation:

Given data:

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Radius = 0.520 m

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Solution:

F centripetal force (tension) =  m.v² / R

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F centripetal force (tension) = 1.50 kg . 95.65 m²/s² / 0.520 m

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2 years ago
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Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.

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