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lana [24]
3 years ago
8

The Doppler effect is a change in the ________________ frequency of sound caused by the motion of either their listener or the s

ound source.
Physics
2 answers:
lyudmila [28]3 years ago
6 0
The answer is
 B) Apparent
nikklg [1K]3 years ago
5 0

Answer: The correct answer is an apparent.

Explanation:

Doppler effect is a phenomenon in which there is a increase or decrease in the frequency when there is relative motion between an observer and the source.

When the observer and the listener are moving towards each other then there will be increase in frequency. When the observer and the listener are moving away from each other then there will be decrease in the frequency.

Therefore, The Doppler effect is a change in the apparent frequency of sound caused by the motion of either their listener or the sound source.

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an object is moving with initial velocity of 5 m/s. After 10 seconds final velocity is 10 m/s. Calculate its acceleration.​
Brut [27]

Answer:

0.5m/s2

Explanation:

acceleration= change in velocity/time taken

= v - u/ t

= 10-5/10

=5/10

= 0.5m/s2

6 0
3 years ago
Find the kinetic energy of a 0.1 kg toy truck moving at a speed of 1.1 m/s
enot [183]
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8 0
4 years ago
How can submarines use echolocation to tell how close they are to the bottom of the ocean?
Lapatulllka [165]
To locate a specific target or to determine how close submarines are to the seafloor, they use active and passive sound navigation and ranging (or a SONAR, in simple terms.) It emits pulses of sound waves that travel through the water, reflect off the target and relayed back to the ship. By determining how fast the sound wave travels back, the computers on the sub calculate how far they are from the target.

Hope this helps. 
3 0
3 years ago
Read 2 more answers
The planet Mars has much less gravitational force that Earth. What would happen if you went to Mars?
vovangra [49]

gravitational force of planet exerted on its object near the surface is known as weight

so here we know that gravitational force of mars is much less than the gravitational force of Earth

So on the surface of mars the Weight of objects must be much less than the weight of object on surface of Earth

so here correct answer must be

<em>D. Your weight would decrease.</em>

6 0
3 years ago
The photograph shows matter going through a physical change. Which characteristic of the matter changes?
Lapatulllka [165]

Answer:

Possibly shape.

Explanation:

Because it is ripped in half. As you guys and the questioner can see that there is a wiggly strip down the middle. That also cause of a shape change.

I really hope my answer is right ^_^  

7 0
3 years ago
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