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Vlad1618 [11]
3 years ago
13

The Doppler effect is the actual change in a star’s frequency of a wave. True False

Physics
2 answers:
Akimi4 [234]3 years ago
6 0

The answer of this question maybe false

Mariulka [41]3 years ago
3 0

Answer:

False

Explanation: the Doppler effect is the

an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other.

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What types of energy does a ball rolling down a hill have?
Yuki888 [10]
Kinetic energy is the answer to your question.
7 0
3 years ago
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Two electrons exert a force of repulsion of 1.2 N on each other. How far apart are they? The elementary charge is 1.602 × 10−19
aleksandr82 [10.1K]

Answer:

The answer to your question is distance between these electrons

                                                   = 1.386 x 10⁻¹⁴ m

Explanation:

Data

Force = F = 1.2 N

distance = d = ?

charge = q₁ = q₂ = 1.602 x 10⁻¹⁹ C

K = 8.987 x 10⁹ Nm²/C²

Formula

-To solve this problem use the Coulomb's equation

  F = kq₁q₂ / r²

-Solve for r²

  r² = kq₁q₂ / F

-Substitution

  r² = (8.987 x 10⁹)(1.602 x 10⁻¹⁹)(1.602 x 10⁻¹⁹) / 1.2

- Simplification

  r² = 2.306 x 10⁻²⁸ / 1.2

  r² = 1.922 x 10⁻²⁸

-Result

  r = 1.386 x 10⁻¹⁴ m

7 0
4 years ago
What can happen to the downhill toe of a slump during wet weather or times when snow is melting? ANSWER The toe can turn into a
jek_recluse [69]

Answer:

Option C

The toe can become an earthflow.

Explanation:

During wet weather  especially winter season when snow is melting, the downhill toe of a slump is likely to become earthflow. It's incorrect to say that the toe turns into rock avalanche neither can the toe collapse and be deposited as a talus at the base of the slope. Despite the melting ice making clay sticky, the toe can't stop due to continued mass wasting that occurs. Therefore, the right answer is option C, <u>The toe can become an earthflow</u>

5 0
4 years ago
Brainliest for correct answer :)
AnnyKZ [126]
All 3 objects have the same mass
8 0
3 years ago
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Consider the data collected in science class. Different masses were thrown with varied amounts of
lesya [120]

Answer:

A: In all cases, the acceleration was the same.

Explanation:

I know this because its a clear obvious answer not only that it was one of my USA TESTPREP questions and it was right.

All you mainly have to do is the math - F=ma , In each case , the acceleration is 5 m/s squared

4 0
3 years ago
Read 2 more answers
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