1.) a red opaque object is
(a.)absorbs all colors of the visible spectrum equally
(.b.) absorbs red light only.(c. )reflects all colors of the visible spectrum but red.(d.) reflects red light only.

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?

What is a costume plot? why is it important to a film or theater production?