Calculate the rms speed of helium atoms near the surface of the Sun at a temperature of about 6400 K. Express your answer to two significant figures and include the appropriate units. vrms v r m s = nothingnothing SubmitRequest Answer
v^2 = 3 KT /m
v^2 = 3* 1.38*10^-23* 6400/ ( 4*1.67*10^-27)
v = 6298 m/s
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Calculate the rms speed of helium atoms near the surface of the Sun at a temperature...
Part A At T = 18 ∘C, how long must an open organ pipe be to have a fundamental frequency of 349 Hz ? The speed of sound in air is v≈(331+0.60T)m/s, where T is the temperature in ∘C. Express your answer to three significant figures and include the appropriate units. l l = nothingnothing SubmitRequest Answer Part B If this pipe is filled with helium at 20∘C and 1 atm, what is its fundamental frequency? The speed of sound...
What is the RMS speed of Helium atoms when the temperature of the Helium gas is 448 K? (Possibly useful constants: the atomic mass of Helium is 4.00 AMU, the Atomic Mass Unit is: 1 AMU = 1.66×10-27 kg, Boltzmann's constant is: kB = 1.38×10-23 J/K.) What would be the RMS speed, if the temperature of the Helium gas was doubled?
What is the RMS speed of Helium atoms when the temperature of the Helium gas is 412.0 K? (Possibly useful constants: the atomic mass of Helium is 4.00 AMU, the Atomic Mass Unit is: 1 AMU = 1.66×10-27 kg, Boltzmann's constant is: kB = 1.38×10-23 J/K.) What would be the RMS speed, if the temperature of the Helium gas was doubled?
The rms speed of the molecules in 2.0 g of hydrogen gas is 1700 m/s . Part A What is the total translational kinetic energy of the gas molecules? Express your answer to two significant figures and include the appropriate units. ϵtotal ϵ t o t a l = nothing nothing Request Answer Part B What is the thermal energy of the gas? Express your answer to two significant figures and include the appropriate units. Eth E t h =...
Part A Determine the resistance of a 75-W lightbulb connected to its proper source voltage of 110 V. Express your answer to two significant figures and include the appropriate units. R R = nothingnothing SubmitRequest Answer Part B Determine the current through a 75-W lightbulb connected to its proper source voltage of 110 V. Express your answer to two significant figures and include the appropriate units. I I = nothingnothing SubmitRequest Answer Part C Determine the resistance of a 250-W...
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If the rms speed of the molecules of a quantity of helium at temperature 142 K is the same as the rms speed of neon atoms at a second temperature, what is the temperature of the neon gas? Answer in Kelvins. The answer is NOT 710, 713.55 or 284.
The surface of the sun has a temperature of about 5800K and consists largely of hydrogen atoms. Find the rms speed of a hydrogen atom at this temperature. (The mass of a single hydrogen atom is 1.67×10−27kg.) The escape speed for a particle to leave the gravitational influence of the sun is given by (2GM/R)1/2, where M is the sun's mass, R its radius, and G the gravitational constant. The sun`s mass is M=1.99×1030kg, its radius R=6.96×108mand G=6.673×10−11N⋅m2/kg2. Calculate the...
During a physics experiment, helium gas is cooled to a temperature of 13.0 K at a pressure of 7.00×10−2 atm . Part A What is the mean free path in the gas? Express your answer with the appropriate units. Part B What is the rms speed of the atoms? Express your answer with the appropriate units. Part C What is the average energy per atom? Express your answer with the appropriate units.
alculate the forces that the supports A and B exert on the
diving board shown in (Figure 1) when a 53-kg person stands at its
tip.
Figure
1 of 1
Part A
Calculate the force that the support A exerts on the diving
board. Ignore the weight of the board.
Express your answer to two significant figures and include the
appropriate units. Enter positive value if the force is upward and
negative value if the force is downward.
FA
F...