There are problems with the first sentence, and it's not really needed when
working with this question. So let's just take the 20 (Hz ?) frequency from
the first sentence, and ignore the rest of it for right now.
Wavelength = (speed) / (frequency) =
(331 m/s) / (20 Hz) = <em>16.55 meters</em>.
Answer:
3.6 × 10¹² nanoseconds
Explanation:
Hour is the unit of time. Seconds is the SI unit of time.
Hour and seconds are related as:
1 hour = 60 minutes
1 minute = 60 seconds
So,
1 hour = 60 ×60 seconds = 3600 seconds
Thus,
3600 seconds are in one hour
Also,
1 sec = 10⁹ nanoseconds
Thus,
3600 sec = 3600 × 10⁹ nanoseconds = 3.6 × 10¹² nanoseconds
Thus,
<u>3.6 × 10¹² nanoseconds are in one hour.</u>
Answer:
The magnitude of the induced e.m.f is 571 mV
Explanation:
Given;
magnetic field strength, B = 0.4T
area of the loop, A = 1m²
time = 0.7s
Since the angle of inclination of the magnetic field, then the direction of the induced e.m.f, θ = 0
According to faraday's law; the induced emf is directly proportional to the rate of change of flux.
Thus, magnitude of the induced e.m.f is given as
I think Dwarfs, but I’m not positive