Monday homework problem 10.6 a simple generator is constructed by rotating a flat coil in a uniform magnetic field. suppose we rotate a flat coil of radius 2.0cm and 400 turns in the earth’s magnetic field 6 times per second so that the surface normal to the coil is parallel to the field once per revolution. the earth’s magnetic field is still about 4 × 10−5t. what is the maximum emf that would be measured acro

Our values are,

Number of rotations per second = 6

We begin calculating the cross-section Area, which is given by,

We can calculate the angular speed through the number of rotations per second,

With this velocity we can now calculate the maximum emf,

28. evolution

29. environment, survive, offspring  

explanation:

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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