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Snezhnost [94]
3 years ago
6

A deer is running across a meadow at a speed of 15 m/s. Katie is riding in a car that is traveling at 25 m/s in the opposite dir

ection as
the deer. To Katie, the deer appears to be moving at a speed of 35 m/s.
Joan is standing still beside the meadow. To Joan, the deer appears to be moving at a speed of 15 ms.
Why do Katie and Joan believe the deer is traveling at different speeds?
A. Joan is not able to see clearly.
B. They are not the same height and weight.
C. They have different frames of reference.
D.Katie's car is going too fast.
Chemistry
1 answer:
Dmitrij [34]3 years ago
5 0

Answer:

D

Explanation:

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Solve: The following question in the picture
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Answer:

1,300,000,000,000

Explanation:

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We want to convert this from scientific notation.

Tip: in scientific notation the exponent tells you how many place you move the decimal point over. If the exponent is negative you move the decimal point to the left. Ex. For, 4.1 x 10^-8, we would move the decimal point over 8 times to the left to get .00000041. When the exponent is positive we move over to the right. Ex. For, 7.6 x 10^7 we would move the decimal point over 7 times to the right to get 76,000,000

So to convert 1.3 x 10^12 we simply move over the decimal point over 12 times to the right.

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