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maks197457 [2]
3 years ago
12

True/False: If an object stays still, but the observer moves, the Doppler Effect is still observered

Physics
2 answers:
Musya8 [376]3 years ago
6 0
The answer is to your question is true....plain and simple
Vladimir79 [104]3 years ago
3 0

Well, Harry, what you said is not necessarily true the way you said it. 
But we know what you mean, and what you meant to say is true.

The Doppler effect is observed if there is relative radial motion
between an object and an observer <em><u>AND</u></em> if the object happens
to be putting out sound or light in the observer's direction.


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You measure the voltage difference of a circuit to be 5 V and the resistance to be 1,000 ohms.
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Answer:

The current in the circuit will be 5\times 10^{-3}\ Ampere.

Explanation:

Given:

Voltage difference = V = 5 V

Resistance              = R = 1000 ohms

To Find:

Current, I = ?

Solution:

Ohm's Law:

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

i.e  I ∝ V

∴ V = I × R

Where, I = current

           V = voltage

           R = resistance

Substituting the values of V and R we get

∴ 5 = I × 1000

I = \frac{5}{1000} \\I=0.005\ Ampere\\I=5\times 10^{-3}\ Ampere

Therefore, the current in the circuit will be 5\times 10^{-3}\ Ampere.

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