Two cars, one in front of the other, are traveling down the highway at 53.7 m/s. The car behind sounds its horn, which has a fre
1 answer:
Answer:
Explanation:
The source is approaching the observer which is moving away from the source , so applying Doppler's effect
where n is apparent frequency , n₀ is original frequency , V₀ is velocity of observer , V_S is velocity of source , V is velocity of sound
Putting the given values
=
= 536
So apparent frequency will be same as original frequency .
ie 536 .
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Answer:
Explanation:
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Answer:
Power factor of the AC series circuit is
Explanation:
It is given that,
Impedance of the AC series circuit, Z = 60 ohms
Resistance of the AC series circuit, R = 30 ohms
We need to find the power factor of the circuit. It is given by :
So, the power factor of the ac series circuit is . Hence, this is the required solution.
Answer: