Explain how a jackscrew is used and how to calculate its ideal mechanical advantage.​

We know that , mechanical advantage of lifting machine is

MA = W / P

For maximum mechanical advantage, we can substitute the value of P = mW + C

Explanation:

im not too sure about this one tho but i hope it helps

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

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