The blank are the specialized tubes in the kidneys in which waste is collected from the blood

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?

What causes the formation of ocean currents?