The first order interference maximum of a specific wavelength of light appears at an angle of 23o to the optical axis (the imaginary line perpendicular to the grating). At what angle (in degrees) is the second order maximum of this wavelength of light located

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure

What determines the amount of inertia an object has

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?