If two charged objects each have 2.5 C of charge on them and are located 100 m apart, how strong is the electrostatic force betw
1 answer:
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Answer:
a)
b)
c)
d)
Explanation:
Given:
- velocity of the sound from the source,
- original frequency of sound from the source,
- speed of the source,
(a)
We know time period is inverse of frequency:
Mathematically:
(b)
Distance travelled by the motorcycle during one period of sound oscillation:
(c)
The distance travelled by the sound during the period of one oscillation is its wavelength.
(d)
observer frequency with respect to a stationary observer:
<u>According to the Doppler's effect:</u>
...........................(1)
where:
are the observed frequency and the velocity of observer respectively.
Here, observer is stationary.
Now, putting values in eq. (1)