Part A A proton has an initial speed of 4.0×105 m/s. What potential difference is required to bring the proton to rest? Express your answer using two significant figures. AV 840 V Submit Previous Answers Part B Correct Correct answer is shown. Your answer 836 V was either rounded differently or used a different number of significant figures than required for this part. What potential difference is required to reduce the initial speed of the proton by a factor of 2? Express your answer using two significant figures. ΕΠΙ ΑΣΦ AV = Submit Request Answer Part C ? V What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 2? Express your answer using two significant figures. ΜΕ ΑΣΦ AV = Submit Request Answer ? V

Part A A proton has an initial speed of 4.0×105 m/s. What potential difference is required to bring the proton to rest? Express your answer using two significant figures. AV 840 V Submit Previous Answers Part B Correct Correct answer is shown. Your answer 836 V was either rounded differently or used a different number of significant figures than required for this part. What potential difference is required to reduce the initial speed of the proton by a factor of 2? Express your answer using two significant figures. ΕΠΙ ΑΣΦ AV = Submit Request Answer Part C ? V What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 2? Express your answer using two significant figures. ΜΕ ΑΣΦ AV = Submit Request Answer ? V

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter16: Electrical Energy And Capacitance

Section: Chapter Questions

Problem 8P: (a) Find the potential difference VB required to stop an electron (called a slopping potential)...

See similar textbooks

Similar questions

(a) Find the electric potential difference Ve required to stop an electron (called a stopping potential) moving with an initial speed of 2.85 107 m/s. (b) Would a proton traveling at the same speed require a greater or lesser magnitude of electric potential difference? Explain. (c) Find a symbolic expression for the ratio of the proton stopping potential and the electron stopping potential. Vp/Ve.
(a) Find the potential difference VB required to stop an electron (called a slopping potential) moving with an initial speed of 2.85 107 m/s. (b) Would a proton traveling at the same speed require a greater or lesser magnitude potential difference? Explain. (c) Find a symbolic expression for the ratio of the proton stopping potential and the electron stopping potential, Vp/Ve. The answer should be in terms of the proton mass mp and electron mass me.
A charged particle is moved in a uniform electric field between two points, A and B, as depicted in Figure P26.65. Does the change in the electric potential or the change in the electric potential energy of the particle depend on the sign of the charged particle? Consider the movement of the particle from A to B, and vice versa, and determine the signs of the electric potential and the electric potential energy in each possible scenario.
The distance between two small charged spheres with charges qA = 8.35 C and qB = +4.90 C is 48.0 cm. a. What is the electric potential energy due to the two spheres? b. What is the electric potential halfway between the two spheres along the line connecting them?
In nuclear fission, a nucleus splits roughly in half, (a) What is the potential 2.001014 in from a fragment that has 46 protons in it? (b) What is the potential energy in MeV of a similarly charged fragment at this distance?
A line of charge with uniform charge density = 2.00 103 C/m lies along the x axis from x = 0.250 m to x = 0.250 m. a. What is the magnitude of the electric potential at (0, 1.000 m)? b. How much work is necessary to move a particle with a charge of 5.00 nC from very far away to (0, 1.000 m)?
(a) What is the final speed of an electron accelerated from rest through a voltage of 25.0 MV by a negatively charged Van de Graff terminal? (b) What is unreasonable about this result? (c) Which assumptions are responsible?
Four charged particles are at rest at the corners of a square (Fig. P26.14). The net charges are q1 = q2 = +2.65 C and q3 = q4 = 5.15 C. The distance between particle 1 and particle 3 is r13 = 1.75 cm. a. What is the electric potential energy of the four-particle system? b. If the particles are released from rest, what will happen to the system? In particular, what will happen to the systems kinetic energy?
(a) Find the potential at a distance of 1.00 cm from a proton. (b) What is the potential difference between two points that are 1.00 cm and 2.00 cm from a proton? (c) Repeat parts (a) and (b) for an electron.
An electron moving parallel to the x axis has an initial speed of 3.70 106 m/s at the origin. Its speed is reduced to 1.40 105 m/s at the point x = 2.00 cm. (a) Calculate the electric potential difference between the origin and that point. (b) Which point is at the higher potential?
Four charged particles are at rest at the corners of a square (Fig. P26.14). The net charges are q1 = q2 = 2.65 C and q3 = q4 = 5.15 C. The distance between particle 1 and particle 3 is r13 = 1.75 cm. a. What is the electric potential energy of the four-particle system? b. If the particles are released from rest, what will happen to the system? In particular, what will happen to the systems kinetic energy as their separations become infinite? FIGURE P26.14 Problems 14, 15, and 16.
A Consider a thin rod of total charge Q and length L (Fig. P26.43). Show that the electric potential at point P, a distance x from the end of the rod, is given by V(x)=kQLln(x+Lx) FIGURE P26.43 Problems 43 and 54.