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maria [59]
1 year ago
8

Alex drives 1900 meters in 200 s. Assuming he does not speed up or slow down, what is his speed?

Physics
1 answer:
pochemuha1 year ago
8 0
Alex is driving at 21.2508882 miles per hour
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THIS IS A SCIENCE QUESTION, sorry if it says physics, this is middle school science
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Answer:

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1 ) Starting from rest, a toy rocket accelerates at 12 m/sec/sec for exactly 4.0 seconds. It reaches 48 m/sec. Find the distance
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How long will it take a car to accelerate from 15.2 to 23.5 m/s if the car has an average acceleration of 3.2 m/s?
Nuetrik [128]
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7 0
3 years ago
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Suppose that you'd like to find out if a distant star is moving relative to the earth. The star is much too far away to detect a
rjkz [21]

Answer:

The speed will be "18km/s". A further explanation is given below.

Explanation:

According to the question, the values are:

Wavelength,

\lambda = 656.46 \ nm

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As we know,

⇒  \frac{\Delta \lambda}{\lambda} =\frac{v}{c}

On substituting the values, we get

⇒  \frac{656.46}{0.04} =\frac{v}{3\times 10^8}

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⇒            =16411.5\times 3\times 10^8

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or,

⇒            =18 \ km/s

8 0
3 years ago
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kkurt [141]

I believe they would electron rate would slow down and the molecules would shrink.

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6 0
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