Question 1176752
1. The current l varies directly as the electromotive force E and inversely as as the resistance R.

{{{ I = k(E/R)}}}

2. The acceleration a of an object varies directly as the force f exerted and inversely as it's mass m.
{{{ a = k(f/m)}}}


3. The stiffness s of a beam varies directly as it's depth d and inversely as the square of the length l.
{{{ s = k(d/l^2)}}}


4. The time t required for an elevator to lift a weight varies directly with the distance d through which it is to be lifted and inversely with the power p of the motor.
5. The force f of attraction between two bodies varies directly as the product of their weights w and inversely as the square of the distance d between them.
{{{ f = k(w1.w2/d^2)}}}

You do the rest


6. The electrical resistance R of wire varies directly as it's length l and inversely as the square of its diameter d.
7. The acceleration A of a moving objects varies directly as the distance d inversely as the square of the time t.