Answer:
Part(a): The frequency is .
Part(b): The speed of the wave is .
Explanation:
Given:
The distance between the crests of the wave, .
The time required for the wave to laps against the pier,
The distance between any two crests of a wave is known as the wavelength of the wave. So the wavelength of the wave is .
Also, the time required for the wave for each laps is the time period of oscillation and it is given by .
Part(a):
The relation between the frequency and time period is given by
Substituting the value of in equation (1), we have
Part(b):
The relation between the velocity of a wave to its frequency is given by
Substituting the value of and in equation (2), we have
Answer:
both
Explanation:
because science is not included in both of them
The variable x would be 4
Answer:
1.47·10^8 A/m^2
Explanation:
The current density is ...
J = E/(ρ·L) = 10 V/((1.7·10^-8 Ω·m^2/m)(4 m)) = 1.47·10^8 A/m^2
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