Which of the following are assumptions that scientists make about the natural world?
check all that apply.
a. measurability
b. causality
c. predictiability
d. regularity
( i'm pretty sure it's more than one answer since i have to check them )

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.