How could you increase the air friction on the sail car? How could you decrease it?

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

its a 5.5 n

glad that

96.77 amp

explanation:

rl = 250/100 = 2.5 ohms.

egl = 250 + (100 × 0.1) + 2 = 262 v.

at 700 r.p.m., eg2 = 262 × 700/1000 = 183.4 v.

if ia is the new current, then eg2 - 2 - (ia × 0.1) = 2.5 ia

which means this will give ia = 96.77 amp.