2012年7月23日 · Sorry if this is a dumb question.. maybe I'm largely overlooking something.. For example, 1 mol of N2 (diatomic nitrogen gas) is apparently equal to 2 x (14u) x 1.6605 x 10^-27 kg/u = 4.6494 x 10^-26 kg Why is 1 mol of N2 not equal to …

2009年5月4日 · The atomic mass unit (u) = 1.660538782×10 −27 kg (or 10^-24g) A proton has a mass of 1.672621637×10 −27 kg and a neutron 1.67492729×10 −27 The mass of the nucleus of an atom is slightly less than the mass of it's neutrons and protons because of the binding energy that holds the nucleus together - effectively the mass of a proton and ...

2005年4月25日 · Curious 3141's value should be right (I remember it being 1.66 x 10^-27 kg = 1 amu) If you wanted to derive it, you could remember that 1 amu is defined as 1/12 the mass of a carbon 12 atom, which, by definition of the mole, I believe, has a molar mass of 12 g/mol.

2005年10月5日 · Suppose the electic field between the two electric plates in the mass spectrometer is 2.48 x 10^4 V/m and the magnetic fields B=B'=0.68 T. The source contains carbon isotopes of mass number 12,13,14 from a long dead piece of tree(To estimate atomic masses multiply by 1.67 x 10^.27 kg).

2014年4月23日 · For E < 4 * 10^-19 J it is a good approximation to the more accurate HCl potential-energy curve that was shown in Figure 10.31. Because the chlorine atom is so much more massive than the hydrogen atom, it is reasonable to assume that the hydrogen atom (m = 1.67 * 10^-27 kg) vibrates back and forth while the chlorine atom remains at rest.

2007年2月28日 · Two isotopes of carbon, carbon-12 and carbon-13, have masses of 19.93x10^-27 kg and 21.59x10^-27 kg, respectively. These two isotopes are singly ionized (+e) and each is given a speed of 6.667x10^5 m/s. The ions then enter the bending region of a mass spectrometer where the magnetic field is 0.8500T.

2010年4月28日 · A proton (rest mass 1.67x10^-27 kg) has total energy that is 3.2 times its rest energy. What is: a) the kinetic energy of the proton (in joules) b) the magnitude of the momentum of the proton (in kg*m/s) c) the speed of the proton (in terms of the speed of light "c") Homework Equations E(0) = m(0)c^2

2011年1月9日 · The mass of a helium atom is 4.0026 u, the conversion factor from u to kg is 1.66 x 10^-27 kg/u, the conversion factor from atm to Pa is 1.013 X 10^5 Pa/atm, the universal gas constant is 8.31451 J/K mol, the Boltzmann's constant is 1.38066 x 10^-23 J/K. What is the average speed (ie, the root mean square speed) of each Helium atom?

2014年10月25日 · Homework Statement A 27-kg chandelier hangs from a ceiling on a vertical 4.0-m-long wire. What horizontal force would be necessary to displace its position 0.15m to one side? Homework Equations [/B] F*x = m*g*hThe Attempt at a Solution [/B] I tried to find the height the chandelier...

2008年2月21日 · G=6.67*10^(-11) Nm^(2)/kg^(2) Mass of proton=1.67*10^(-27)Kg The Attempt at a Solution i computed the gravitational force between the two protons, i think, but the asks why might they make you wonder why the protons don't fly apart. I think i may have computed the gravitational force wrong...