Decide the temperature at which the rms speed

Reference no: EM13666977

Note: the molar mass of He is 4 g/mol. Report temperature in Kelvin and speed in m/s. Boltzmann’s constant is 1.38066×10⁻²³ J/K. Avogadro’s number is6.02214 ×10²³ /mol.

1. Decide the temperature at which the rms (root-mean-square) speed of an He atom equals 990 m/s.

2. What is the rms speed of He on the surface of a certain star, where the temperature is 5374 K? 75. Two narrow slits are illuminated with a laser with a wavelength of 518 nm. The interference pattern on a screen located x = 4.50 m away shows that the second-order bright fringe is located y = 8.40 cm away from the central bright fringe.

1- Compute the distance between the two slits.

2- The screen is now moved 2.4 m further away. What is the new distance among the central and the second-order bright fringe?

Reference no: EM13666977

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