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astra-53 [7]
3 years ago
7

Fig on the left shows a stationary source emitting the waves. Fig on the right shows the waves in the medium as the source start

s moving towards the left. If you were an observer to the left of the source, what would you observe about the wavelength and the frequency of the waves?
A. Wavelength-Increase, Frequency-Decrease

B. Wavelength-Increase, Frequency-Increase

C. Wavelength-Decrease, Frequency-Increase

D. Wavelength-Decrease, Frequency-Decrease

Physics
1 answer:
malfutka [58]3 years ago
6 0
B is the answer I think not sure
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Answer:

1.288\times 10^{-20}\ J

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Explanation:

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Change in electric potential is given by

E=q(V_2-V_1)\\\Rightarrow E=(19e-18e)(0-(-80.5\times 10^{-3})\\\Rightarrow E=1.6\times 10^{-19}\times 80.5\times 10^{-3}\\\Rightarrow E=1.288\times 10^{-20}\ J

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