__ clock uses the periodic vibrations accruing within the atom
1 answer:
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Answer:
12V
Explanation:
Given parameters:
Resistance = 12ohms
Heat released = 144J
Time taken = 12s
Unknown:
Voltage at the ends of the conductors = ?
Solution:
To solve this problem, we must first determine the power expended by the circuit.
Power is the rate at which work is done;
P =
=
= 12W
Electrical power is given as;
P = IV =
Since V is the unknown, we solve for it;
12 =
V = 12V
When air is blown into the open pipe,
L =
where nis any integral number 1,2,3,4 etc. and λ is the wavelength of the oscillation
⇒λ=
Note here that n=1 is for fundamental, n=2 is first harmonic and so on..
⇒ third harmonic will be n=4
Given L=6m, n=4, solving for λ we get:
λ= =3m
Relationship of frequency(f), velocity of sound (c) and wavelength(λ) is:
c=f.λ Or f=
⇒f=
≈115 Hz