I have read that it is enough energy to power the needs of civilization for an entire year.
Answer:
42 Hz
Explanation:
Given,
Speed ( v ) = 210 m/s
Wavelength ( λ ) = 5 m
To find : Frequency ( f ) = ?
Formula : -
v = f λ
f = v / λ
= 210 / 5
f = 42 Hz
You're going to have to give me the choices.
I'm pretty sketchy on that subject.
Answer:
Movement of electrons
Explanation:
when electrons move from a point to another, they carry along charges in the course of moving. Charges could be through metallic objects and as well could be through some conducting solution.
That leads us to Ohm's Law : it states that current flowing through a metallic conductor is directly proportional to the potential difference across its ends, provided that temperature remains constant. So for charges to flow through a conductor, there are factors to be considered.
According to the rules for significant figures, simple decimal subtraction is done. But since 15.54 is only accurate to the hundredths place, then the resulting difference should also be rounded off to the nearest hundredths. This is shown below:
508.9538 - 15.54 = 493.4138
Rounding off to the nearest hundredths:
= 493.41