What would be the surface temperature of the Sun if its wavelength is 550 nanometer? Here use peak wavelength lambda = 2.93 x 10-3/T

Where lambda is the wavelength in meters and T is the temperature in degrees Kelvin

Write short note on the following ; collision theory, rotation angle and angular velocity, centripetal acceleration, coriolis force, and newton's law of gravitation.

What are the theoretical properties of a gas at a temperature of 0 kelvin?

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)