The answer would be D. It's D because if there was corruption and instability, how will we fund the project? If there was lack of resources, how will the house be completed? If there was a lack of education, how will buildings be able to be engineered?
Answer:
Explanation:
Expression for emf induced = 1 /2 B n r²ω where B is magnetic field , r is radius of the coil and ω is angular velocity of rotation , n is no of turn .
ω = 2πf = 2π x 60 = 120 π ; where f is frequency of rotation .
emf induced = 1 /2 B r²x 120π x n
Putting the given values
10000 = .5 x B x .11² x 120 x 3.14 x 506
B = 8.67 T .
rate of heat radiation by the body is given by
here we know that
e = 0.7
now from above formula rate of heat dissipation
now we know that
from above equation
now we have
here we have
m = 96 kg
s = 3500
Answer:
A is the right answer isn't it
<span>B) Electric forces and magnetic forces are different aspects of a single electromagnetic force.
C) The operation of a motor depends on the relationship between electric and magnetic forces. hope this helps
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