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Musya8 [376]
3 years ago
13

Two identical cars collide head on. Each car is traveling at 100 km/h. The impact force on each car is the same as hitting a sol

id wall at:
(a) 100 km/h

(b) 200 km/h

(c) 150 km/h

(d) 50 km/h
Physics
1 answer:
guapka [62]3 years ago
5 0
100km/h due to there similar speed the resultant impact will be the same
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Distinguish between physical and chemical changes. Include examples in your explanations.
hram777 [196]

Answer:

<u>Chemical changes</u> are recognized when a substance changes its properties permanently and it cannot be the same substance as before.

Instead the<u> physical changes</u><u> </u>implies that if you can return to the same substance through a reverse process.

Explanation:

A chemical change is, by example, a combustion, if a sheet of paper burns, its result is ashes, the ashes cannot go back to being a sheet of paper because its properties changed, heat energy was generated that changed matter permanently.

A physical change, by example, is that of freezing water, the water becomes ice, but this can easily become water again if the temperature is increased, its properties do not change and the chemistry of the substance does not change.

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ratelena [41]

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Explanation:

conversation km to meter

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7 0
2 years ago
Which state has the most fixed shape?<br> O A. Gas<br> O B. Solid<br> O C. Liquid<br> O D. Plasma
Mrac [35]

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“A substance will take on the shape of an open container if it is a Liquid. Explanation: The major state of matter are solid, liquid and gas. Liquid usually have a definite volume.”

3 0
3 years ago
List two industrial uses for nonmetallic mineral resources
Anni [7]

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Explanation:

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3 years ago
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Alenkinab [10]

Answer:

1047 miles

Explanation:

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So its circumference, which is the total length of the equator, is given by

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L' = \frac{25133 mi}{24h}=1047 mi

8 0
3 years ago
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