How much work is required to bring three protons, initially infinitely far apart, to a configuration where each proton is 1.68E-15 m from the other two. (This is a typical separation for protons in a nucleus.)
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A: Velocity of both protons = u→=-1.91×106m/s j^ Initial separation = 54.8 fm = 54.8 ×10-15 m
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- Two electrons are fixed 1.70 cm apart. Another electron is shot from infinity and stops midway between the two as the figure shows. What is its initial speed?(a) What is the electric potential energy of two electrons separated by 1.94 nm? (b) What would be it be if the separation was doubled?Four electrons are located at the corners of a square 10.0 nm on a side, with an alpha particle at its midpoint. How much work is needed to move the alpha particle to the midpoint of one of the sides of the square?
- Needs Complete typed solution with 100 % accuracyTrue of false ? The stopping power is a function of the charge of the particle, energy of the particle, and shape of the medium.As shown in Figure 1, two parallel plates have a potential ditterence of 12 V and are held a distance of 0.001m apart. A free charge held near the positive plate moves to the right, as shown, when it is released. It then moves through an opening in the negative plate on the right. 12V (a) Is the particle a proton or an electron? (b) What is the energy (in Joule) as it leaves the right plate? (c) How fast is it moving when it reaches the negative plate? (d) What are the magnitude and the direction of the electric field between the plates?
- What is the escape speed for an electron initially at rest on the surface of a sphere with a radius of 1.0 cm and a uniformly distributed charge of 1.6 * 10-15 C? That is, what initial speed must the electron have in order to reach an infinite distance from the sphere and have zero kinetic energy when it gets there?A dielectric sphere of total charge Q and radius R is uniformly charged. Because of Coulomb repulsion the sphere completely explodes. Find the maximum energyreleased after all the sphere’s mass is infinitely far away.In the figure a charged particle (either an electron or a proton) is moving rightward between two parallel charged plates separated by distance d = 3.60 mm. The plate potentials are V₁ = -63.0 V and V₂ = -45.0 V. The particle is slowing from an initial speed of 83.0 km/s at the left plate. (a) Is the particle an electron or a proton? (b) What is its speed just as it reaches plate 2? (a) (b) Number i Units
- (a) A point charge Q creates an electric potential of +125 V at a distance of 15 cm. What is Q?(b) What is the electric potential at a distance of 2.5x10-15 m away from a proton?(c) What is the electric potential energy of a system that consists of two protons 2.5x10-15 m apart, as might occur inside a typical nucleus?In the figure a charged particle (either an electron or a proton) is moving rightward between two parallel charged plates separated by distance d = 2.00 mm. The plate potentials are V₁ = -62.0 V and V2=-49.0 V. The particle is slowing from an initial speed of 88.0 km/s at the left plate. (a) Is the particle an electron or a proton? (b) What is its speed just as it reaches plate 2? (a) proton (b) Number i Units m/sQuestion 10 of 11 (a) In the figure a charged particle (either an electron or a proton) is moving rightward between two parallel charged plates separated by distance d = 6.10 mm. The plate potentials are V₁ = -67.0V and V₂ = -50.0 V. The particle is slowing from an initial speed of 85.0 km/s at the left plate. (a) Is the particle an electron or a proton? (b) What is its speed just as it reaches plate 2? (b) Number i 62.955 e Textbook and Media Hint 3 Save for Later A+ proton F3 E ▬▬▬ ▬▬▬ Q Search F4 $ R --- F5 % 5 T + Units F6 V₁ i 6 m/s 1 120 F7 Y & V₂ D LO F8 U O 8 Attempts: unlimited 0.1/1 F9 8 : F10 Submit Answer F11