What is the Frequency of a light wave with a Wavelength of 680 x 10^-7m?

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.