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butalik [34]
3 years ago
15

HELPPPpPppPp!!!! !!!!!!!

Physics
2 answers:
matrenka [14]3 years ago
8 0

Answer:

21.0

Explanation:

kiruha [24]3 years ago
8 0

Answer:

D

Explanation:

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inysia [295]

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1.A compound is when two substances are put together and there is a reaction creating a new substance Ex. H20. A mixture is when two substances are put together, there is no reaction and they can be separated easier than compounds. Ex. salad dressing.

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7 0
2 years ago
An airplane travels at 300 mi/h south for 2.00 h and then at 250 mi/h north for 750 miles. What is the average speed for the tri
Anettt [7]

Answer:

270 mi/h

Explanation:

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Average speed = total distance/total time

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3 years ago
..................,,,,,,,,,
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.....,.,.,.,.,.,.,.,.,.,.,.,..,.,.,.,.,.,.,,.,.┌(・。・)┘♪

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