A meter stick is used as a lever. if the input force is applied at 0 cm and the output force is extended at 100cm, what is the ideal mechanical advantage of the fulcrum is at 75cm This is grade 8 science!

The size is 8inches if ur a girl

Idon’t really understand the question i’m sorry i can’t

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m