A light with a second-order dark band forms a diffraction angle of 20.0°. The diffraction grating has 200.0 lines per mm. The wavelength of the light, to the nearest whole number, is nm.

What is the purpose of the zigzag line on the periodic table

Find the frequency of a sound wave moving in air at a speed of 344m/s, at a temperature of 22°C with a wavelength of 0.667m.

Which statement describes the relationship between voltage and current

What type of waves travel the farthest A. P wave B. S wave

Forces can be added together only if they are A. acting on the same object. B. balanced forces. C. unaffected by gravity. D. substantial. According to Newton's third law of motion, when a hammer strikes and exerts force on a nail, the nail A.

Birds, squirrels, and chipmunks all living in the same tree, using the same resources, are an example of:

Does air resistence decrease with speed

In one area, the lowest angle of elevation of the sun in winter is 23 ° 18 '. Find the minimum distance, x, that a plant needing full sun can be placed from a fence 4.63 ft high.

A wave has a wavelength of 50 m and a speed of 200 m/s. What is the frequency of this wave in hertz?

A 75.0 kg person stands on a scale in an elevator. (a) What does the scale read (in N and in kg) when the elevator is at rest?