Sears Tower in Chicago is 443m tall. How long would it take a rock dropped from the top to reach the ground if it starts from rest?

as technology advances, new experiments often expose problems in accepted theories. c

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-lavira: )

frequency or wavelenth of em radiation in a vacuum

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.