Why can blue light and yellow light combine to produce white light?
a. because blue, yellow, and white are primary colors.
b. they absorb each other s wavelengths.
c. they are complementary colors of light.
d. they are both primary colors of light.

How to calculate voltage drop in a series circuit

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.