知道速度求波长The average speed of a helium atom at 25°C is 1.23 103 m·s-1.What is the average wavelength of a helium atom at this temperature? 答案 一个氦原子质量为0.664x10^(-26)kg根据德布罗意波长公式可得λ=h/p=h/(mv)=8.113×10^(-11)m相关推荐 1知道速度求波长The average speed...
At what temperature is the speed of sound in helium (ideal gas, gamma = 1.67, atomic mass = 4.003 u) the same as its speed in chloroform at 20 degrees C?If a hydrogen atoms in a balloon has a kinetic energy of 2.176 x 10-21 J, what is...
atomic mass - (chemistry) the mass of an atom of a chemical element expressed in atomic mass units atomic weight, relative atomic mass mass - the property of a body that causes it to have weight in a gravitational field combining weight, eq, equivalent weight, equivalent - the atomic weight...
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v2= (30î + 40ĵ) m/s v3= (-40î + 10ĵ) m/s v4= (20î - 30ĵ) m/s Determine i) Average velocity (vavg), ii) Average speed (vavg), and iii) Root-mean-square velocity (vrms) of the particles in the simulation....
The calculated scattering functions were based on all-atom models, which take into account the cross section of the molecule, as well as its contour. Molecular dynamic simulations in water showed that overall, the conformation of the three-turn single-helical form was maintained at 300 K, ...
If car P's average speed was 10 miles per hour greater than that of car R, what was car R's average speed, in miles per hour? A.40 B.50 C.60 D.70 E.80 点击查看答案 第9题 In accordance with the ocean marine cargo insurance clauses of the People’s Insurance Company, basic...
We present a simplified version of an average-atom collisional-radiative model employing both local-thermodynamic-equilibrium average-atom and isolated-ion atomic data. The simplifications introduced do not lead to any substantial errors, and they significantly speed up calculations compared with the ...
If the temperature of argon gas is {eq}400\ K {/eq} and the average velocity of argon is twice that of radon, what is the temperature of radon gas? Average Velocity of Gases: The average of speeds at which various gaseous molec...
The average lifetime for then=3excited state of a hydrogen-like atom is4.8×10−8sand that for then=2state is12.8×10−8s. The ratio of average number of revolution made in then=3sate before any transition can take place from these state is. ...