1.0 QUANTUM BASICS 1C. Quick Quiz
For the following questions assume the speed of the electromagnetic wave is
3.00 x 108 m s-1
1. Yellow street lights emit light which has a wavelength of 589 nm. Calculate the
frequency of the light
2 Radin live brood

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block