1 A diffraction grating has a spacing of 1.6 10-m. A beam of light is incident normally on the
grating. The first order maximum makes an angle
of 20° with the undeviated beam. what is wavelength of the incident light

Acar tire contains 0.0380 m^3 3 of air at a pressure of 2.20 ×10^{5} 5 n/m^2 2 (about 32 psi). how much more internal energy does this gas have than the same volume has at normal atmospheric pressure, 1.01x10^5 5 pa?

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

J. j. thomson’s experiment disproved the theory that an atom