A16.0 m long, thin, uniform metal rod slides north at a speed of 21.0 m/s. the length of the rod maintains an east-west orientation while sliding. the vertical component of the earth's magnetic field at this location has a magnitude of 42.0 µt. what is the magnitude of the induced emf between the ends of the rod (in mv)?

14.112 mV

Explanation:

L = 16 m, v = 21 m/s, B = 42 μ T = 42 x 10^-6 T

The formula for the induced emf is given by

e = B x v x L

e = 42 x 10^-6 x 21 x 16 = 14.112 x 10^-3 V = 14.112 mV

Thus, the induce emf is 14.112 mV.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2