Find the frequency in terahertz of visible light with a wavelength of 639 nm in vacuum.

Tungsten-filament lightbulb emits light based on the temperature of the filament. which phenomenon does this demonstrate?

The car hoist allows the car to be driven onto the platform, after which the rear wheels are raised. if the loading from both rear wheels is 1380 lb, determine the force in the hydraulic cylinder ab. neglect the weight of the platform itself. member bcd is a right-angle bell crank pinned to the ramp at c. the force is positive if in tension, negative if in compression.

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form