The mechanical advantage of the crowbar is
(output force) divided by (input force) .
According to the gripping scenario, that's (750N) / (50N) = <em>15</em> .
Yasher koach, Yosef !
To solve this problem we need to use the induced voltage ratio law with respect to the number of turns in a solenoid. So
For the given values we have to
Replacing we have that,
Therefore the RMS value for secondary is 30V.
The current can be calculated at the same way, but here are inversely proportional then,
Replacing we have
Therefore the rms value of current for secondary is 40mA
The components are at a right angle so the resultant is R^2 = 4.50^2 + 9.80^2 R = 10.78 or 10.8
I hope this helps! :)
~erudite