How does an object's rate of cooling vary with size? a. a larger object cools more slowly than a smaller object. b. a smaller object cools more slowly than a larger object. c. size has no effect on an object's rate of cooling.

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?