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Q: a water droplet on a surface has the following surface energy (0.029 n/m). What is the contact angle…

A: The angle of contact is, cosθ=σeσ the surface tension of water is 0.073 N/m. therefore,

Q: What speed must an electron have in order for it's de Broglie wavelength to be 525 nm? Show the…

A: Given data:  An electron  The wavelength (λ) = 525 nm Required: The speed (v)

Q: Consider the values of s and ms for an electron.   Write all possible values of s for an electron.

A: s: spin quantum number. electron is spin 1/2 particle. thus , value of s for electron is 1/2 s=1/2

Q: Jessisa is doing an experiment. She knows that her alpha particle in her expirement has charge 2e…

A: charge on alpha particle (q) = 2echarge on gold nucleus (Q) = 79 eInitial distance between the gold…

Q: Plug speed v from equation v = erB/me into equation me*delta v^2 / 2+e and solve for the desired…

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Q: An accelerating voltage of 8 keV was used for the EDX (Energy dispersive x-ray analysis) analysis of…

A: Solution:-           Energy‐dispersive X‐ray spectroscopy (EDX) is a surface analytical technique…

Q: The de Broglie Wavelength of a proton and an alpha particle are equal.The ratio of their velocities…

A: The de Broglie wavelength of a proton can be expressed as, λp=hmpvp ......(1) Here, h is Planck's…

Q: An electron beam is accelerated across a potential difference and on a thin film containing crystal…

A: Given, Accelerating potential=2.8kV d=0.160nm

Q: The Stanford Linear Accelerator accelerated electrons to an energy of 50 GeV. What is the de Broglie…

A: The energy is too huge as compared to the rest mass energy of electron. the de Broglie wavelength…

Q: Find the wavelength (in nm) of the fourth line in the Lyman series. (Round your answer to at least…

A: Solution: n1 and n2 of the fourth line in Lyman series is 1 and 4 respectively.  Put these values in…

Q: A large sheet of charge has a surface charge density of 1.9 µC/m?. Randomized Variables o= 1.9 µCm?…

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Q: how much energy does it take to singly ionize it?

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Q: An electron beam of momentum 200 MeV/c is elasti an angle of 14° by a nucleus. It is observed that…

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Q: Chase and Kadri consider the following values, which are part of a set of experimental data for a…

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Q: In the Millikan oil drop experiment tiny charged oil droplets generated by a spray are allowed to…

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Q: of students measure the intensity of light from a desklamp in Sec. 4.5 of the experiment. When the…

A: Given: The distance of detector from lamp is 25 cm.             The voltage is 0.74 V.  To…

Q: (a) A beam of electrons is accelerated by a voltage of 180 V in a Davisson-Germer experi- ment. The…

A: Since you have posted multiple questions, we will provide the solutiononly to the first question as…

Q: directed on the surface of a crystal. The intensity of electrons detected at various angles of…

A: GivenIn a Davisson-Germer experiment, the electric current detected at various angles of deflection…