Use the work energy theorem to find the force required to accelerate an electron from rest to a speed of 1. 50 x 10&7.

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

the ima (higher than 1m) will be greater than the ima with the height of 1m.

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.