The mass of a body is a measure of the quantity of matter in the body. who from Antoine Lavoisier, Isaac Newton, and Albert Einstein said this with explanation why.

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

What happens to an isotope during radioactive decay?