A red laser pointer emits light with a wavelength of 655 nm. Calculate the frequency (in Terahertz) of the light. Hint: The metric prefix Tera- represents 1012 .

Please use 3.0x108 m/s as the speed of light, and round your answer to the nearest terahertz.

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

Lightning is an example of what phenomenon? a release of a large amount of energyan absorption of a large amount of energya natural electric circuita natural electric current

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)