A diffraction grating is 1.50 cm wide and contains 2000 lines. When used with light of a certain wavelength, a third-order maximum is formed at an angle of 20.0°. What is the wavelength (in nm) ?

The amount of the mass object has per its volume is knows as

Which of the following processes have contributed to the evolution of the Earth over time select all that apply? a the motion of crustal plates b the rock cycle c radioactive dating d erosion e deposition

A block of mass 2 kg slides down ramp 1 with a height of 3 m. It then slides for 1 m on a surface with a kinetic coefficient of friction of 0.4. Next the block slides up a frictionless ramp 2.

Why is pitch an important property of music?

The resistivity of iron is 1 x 10 - 7 Ωm. The resistance of a iron wire of particular length and thickness is 1 ohm. If the length and the diameter of wire both are doubled, then the resistivity in Ωm will be

How far does a wave travel in three cycles ?

Why is a noble gas different from other elements

Describe a skydivers jump from the airplane to the ground

This is a unit of electrical resistance

If a tennis ball has a velocity of 18 m/s and a momentum of 1.06 kg • m/s, what is the mass of the tennis ball in grams?