Answer:
a) 1.2*10^{-3}cos(1.25t)
b) 0.49mV
Explanation:
a) The coil rotates periodically with period T. Hence, we can write the variation of the magnetic flux with a sinusoidal function, and with max flux NAB. Thus, we have that:
where we have used the values given by the information of the problem for N B and A.
b)
the emf is given by:
hope this helps!!
Answer:
300 J
Explanation:
Work = (Force)*(distance) = 600 N ∗ 0.5 m = 300 J
Answer: Eridani B2 appears only × as bright as the sun.
The speed of the wave is C) 8m/s.
<h3>What is speed?</h3>
It should be noted that speed simply means the distance that's covered at a particular time period.
It should be noted that the distance was illustrated as 2m and the frequency is given as 4Hz. Therefore, the speed will be calculated as:
Speed = Frequency × Wavelength
= 2 × 4
= 8m/s
Therefore, the speed is 8m/s.
Learn more about speed on:
brainly.com/question/4931057
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