Yosef applies an input force of 50 n to a crowbar. the crowbar applies a force of 750 n to the lid of a crate. what is the mechanical advantage of the crowbar? the mechanical advantage of the crowbar is .

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?

Which statement best describes the direction of the buoyant force on any object? a. opposite the force of gravity b. in the same direction as the weight c. in the direction of motion of the object d. opposite the direction of motion of the object