Answer:
Explanation:
V = I R
V = 0.0418 * 30
V = 1.254
this battery seems dead :P
Answer:
The speed of sound in this gas is 409.6 m/s.
Explanation:
The length of the column changes from 20 cm from resonance to resonance. Thus,
The length change from one resonance to resonance. so, there is 1 loop change. So,
ΔL = 1 loop = λ/2
ΔL = 20 cm (given)
Also, 1 cm = 0.01 m
So,
ΔL = 0.2 cm (given)
The wavelength is:
λ = ΔL×2
λ = 2x0.2 = 0.4 m
Given:
Frequency (ν) = 1024 Hz
<u>Velocity of the sound in the gas = ν×λ = 1024×0.4 m/s = 409.6 m/s</u>
A.
since they do not have a definite volume, this causes it to spread out in the air
<span>True</span>
Frequency, f = 1/Period,T or Period, T = 1/Frequency, f