A car travels 120 miles in 12 hours. What is
1 answer:
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<h3>Answer:</h3>
3. 0.0125 V
4. change in time, ∆t
<h3>Explanation:</h3>3. Faraday's law says ...
With suitable units, the magnetic flux Φ is the product of the magnetic field strength and the area of the loop. So ...
EMF = (∆B/∆t)·A = (0.250 T/s)·(0.05 m²) = 0.0125 V
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4. Refer to the discussion for problem 3. EMF is proportional to the change of flux with respect to time.
Answer:
option B
Explanation:
given,
two plane are moving in same altitude at a distance of 1.0 km apart.
angle of depression of the two planes given are 45° and 37°
now, the diagram is attached below
using diagram,
now in ΔAOC
tan 45° =
x = h..................(1)
now using triangle ΔBOD
tan 37° =
from equation (1)
0.754 =
0.754 h + 753.56 = h
0.246 h = 753.56
h = 3063.5 m
hence, the correct answer is option B