Velocity = acceleration x time V = axt
time = velocity/acceleration
t = v/a
acceleration = velocity/time
a = v/t.
A quarter that is dropped from a tower falls to the ground in 12 seconds.
What is the velocity of the quarter as it hits the ground?
Show work here, including units. Start with the appropriate formula
a =
t =
v = a xt =
V=

Which statements are true? see picture

How many solutions does the nonlinear system of equations graphed below have?

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters