A sample of 3 mol of diatomic gas is measured to have a temperature of 300 K. If the mass of the gas is 0.048 kg, what is the approúmate average speed
of the molecules in the gas? (Recall that the equation for kinetic energy due
to translation in a gas is Keranslational = "702 = nRT, and R = 8.31 J/(
mol-
2
O A 684 m/s
O B. 608 m/s
O C. 612 m/s
D. 670 m/s

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

True or false graphs must include scales that increase by the same amount

Use the drop-down menus to answer each question. which line represents the movement of a cart with a constant acceleration? a which line represents the movement of a cart with a constant velocity? c which lines represents a cart with no velocity or acceleration? b