Wave with a period of 0.008 second has a frequency of
a. 125 hz.
b. 12.5 hz.
c. 80 hz.
d. 800 hz.

The duration of a photographic flash is related to an rc time constantly

I'd go for the one that says that knees are fulcrums, lower legs are levers and the ankles hold loads.hope it ,happy homework/ study/ exam!

I'm having some difficulty seeing the diagram clearly.but the question says there's a net inward force on the object.so we know right away,  from newton's 2nd law of motion, thatthat baby is accelerating.  it doesn't even matter which way thenet force is pointing.  if there's any net force, then either theobject's speed or else its direction must be changing.