A light with a second-order bright band forms a diffraction angle of 30.0°. The diffraction grating has 250.0 lines per mm. The wavelength of the light is nm.

Why is the meteor crater in arizona still visible when most impact craters created by meteorites hitting earth are not

How many neutrons does element X have if it's atomic number is 33 and it's mass number is 93?

Suppose you see the constellation Orion directly overhead around midnight in February. During which of the following months would it be directly overhead in the daytime (around noon) ? A. March B. December C. August

A bar is used to lift a 100-kg block of concrete. The pivot is 1.00m from the block. (a) If the worker pushes down on the other end of the bar a distance of 2.50m from the pivot, what force (in N) must the worker apply? (b) Find the MA

A skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 7.1° with the horizontal. The rope moves parallel to the slope with a constant speed of 0.60 m/s.

What formula allows you to calculate force?

My science fair project is: Texting Versus Talking - Effects of Cell Phones on Reaction time. What should I research?

The shape of earth's land masses and the of tilt its axis could have triggered climate changes in the past. True False

When you look at a single slit diffraction pattern produced on a screen by light of a single wavelength, you see a bright central maximum and a number of maxima on either side, their intensity decreasing with distance from the central maximum.

Two particles with the same charge will repel each other. True or false