b) Calculate the value of the kinetic, potential and total energy of an electron revolving in Bohr's first orbit in a hydrogen atom. Where m= 9.1 x 1031 kg, e=1.6 x 19-19 c. E- 8.854 x 10-12 Fm, h=6.625 x 1034Js. (10 mrk) Question R

7. An alpha particle (two protons, two neutrons) moves into a stationary gold atom (79 protons, 118 neutrons), passing through the electron region that surrounds the gold nucleus like a shell and headed directly toward the nucleus (Fig. below). The alpha particle slows until it momentarily stops when its center is at radial distance r =9.23 fm from the nuclear center. Then it moves back along its incoming path. What was the kinetic energy Ki of the alpha particle when it was initially far away? Assume that the only force acting between the alpha particle and the gold nucleus is the (electrostatic) Coulomb force and treat each as a single charged particle. Alpha particle Gold nucleus Lightshot Lightshot A ctivato Windc

= 2. In an electrode system potential equation is given as V(x, y) x are; for x =0.5 cm, y=1 cm V = V₁ =40 kV and x =1 cm, y=1cm V = V₂ =0 V. a) Determine the constant A and B. b) Evaluate electric field equation. Determine maximum and minimum electric field strength values. A + By and the boundary conditions

O a. K = T[m-¹] O b. K = 2π[m=¹] O c. K = 6π[m-¹] O d. K = 3π[m=¹] : O e. Ninguna de las opciones. O f. K = 57[m=¹] O g. K = 4T[m-¹] Oh. K = 7T[m-¹]

A hydrogen atom has a central nucleus w/ a single proton w/c is the charged particle of Qp=+1.60x10^-19 C that will be creating the potential, the 1st ring w/ energy level of Va at distance 5.29 x10^-11 m away from central proton and the 2nd ring with energy level Vb at distance 2.12 x 10^-10 m away from the charged particle what is the change in potential from the first to the second ring?

Determine the speed of an electron that has a kinetic energy of 5 eV.   a. 1.33 x 106 m/s b.3.00 x 108 m/s  c.2.66 x 106 m/s  d.5.00 m/s

0.8 04 02 x/Z P2 P1 Using the half-depth rule, determine the z value for the horizontal cylinder in the figure above. Select one: O a. O b. 4 С. 0.2 d. 1.5

Determine the distance between the electron and proton in an atom if the potential energy U of the electron is 13.8 ev (electronvolt, 1 eV = 1.6 × 10-19 J). Give your answer in Angstrom (1 A = 10-10 m). Answer: Choose... + Previous page

Answers: a) 3.3 C c/m² 6. Two electrons are fixed 2.00 cm apart. Another electron is shot from infinity and comes to rest midway between the two. What was its initial speed? Answer: 318 m/s

The distance, r, between the proton and electron in the hydrogen atom is about 10-10 m. Determine the value of the potential energy U of the electron in the hydrogen atom. Provide your answer in electron-volts (eV). Recall 1 eV = 1.6 × 10-19 J. Answer: Choose... +