The wavelength of violet light is about 425 nm (1 nanometer = 1 × 10−9 m). what are the frequency and period of the light waves?

1. Frequency:

The frequency of a light wave is given by:

where

is the speed of light

is the wavelength of the wave

In this problem, we have light with wavelength

Substituting into the equation, we find the frequency:

2. Period:

The period of a wave is equal to the reciprocal of the frequency:

The frequency of this light wave is (found in the previous exercise), so the period is:

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.