Jackpumpkin
31.08.2019 •
Physics
Awhale emits a subsonic sound wave with a frequency of 7 hz. what is the period of this wave?
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Ответ:
Period of this wave, T = 0.142 seconds.
Explanation:
The frequency of the sound wave, f = 7 Hz
We need to find the period of this wave. The time period of the wave is given by :
T = 0.142 seconds
So, the period of this wave is 0.142 seconds. Hence, this is the required solution.
Ответ:
The magnitude of the magnetic field near the center of the solenoid is 11.3 mT
Explanation:
No. of turns
Radius
m
Length of solenoid
m
Current
A
For finding the magnetic field near the center of the solenoid is given by,
Where
Therefore, the magnitude of the magnetic field near the center of the solenoid is 11.3 mT