Part A Proton-beam therapy can be preferable to X rays for cancer treatment (although much more expensive) because protons deliver most of their energy to the tumor, with less damage to healthy tissue. A cyclotron used to accelerate protons for cancer treatment repeatedly passes the protons through a 15-kV potential difference. How many passes are needed to bring the protons' kinetic energy to 1.5 x 10–11 J? Hνα ΑΣφ ? N = 3125 Submit Previous Answers Request Answer X Incorrect; Try Again

Part A Proton-beam therapy can be preferable to X rays for cancer treatment (although much more expensive) because protons deliver most of their energy to the tumor, with less damage to healthy tissue. A cyclotron used to accelerate protons for cancer treatment repeatedly passes the protons through a 15-kV potential difference. How many passes are needed to bring the protons' kinetic energy to 1.5 x 10–11 J? Hνα ΑΣφ ? N = 3125 Submit Previous Answers Request Answer X Incorrect; Try Again

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter43: Nuclear Physics

Section: Chapter Questions

Problem 3P

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Similar questions

Nobel laureate Richard Feynman (19181088) once said that if two persons stood at arms length from each other and each person had 1% more electrons than protons, the force of repulsion between them would be enough to lift a weight equal to that of the entire Earth. Carry out an order-of-magnitude calculation to substantiate this assertion.
The magnetic field in a cyclotron is 1.25 T, and the maximum orbital radius of the circulating protons is 0.40 m. (a) What is the kinetic energy of the protons when they are ejected from the cyclotron? (b) What Is this energy in MeV? (c) Through what potential difference would a proton have to be accelerated to acquire this kinetic energy? (d) What is the period of tire voltage source used to accelerate the piotons? (e) Repeat tire calculations for alpha-particles.
In nuclear fission. a nucleus splits roughly in half. (a) What is the potential 2.00 10-14 m 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) Calculate the mass of a proton using the charge-to-mass ratio given for it in this chapter and its known charge. (b) How does your result compare with the proton mass given in this chapter?
If two protons are traveling parallel to each other in the same direction andat the same speed, Is the net force between them(a) attractive or (b) repulsive?ANSWER: ______________________________________(EXPLAIN YOUR OPTION IN ONE SENTENCE ONLY)
3. If an electron is accelerated from rest through a potential difference of 1500 V, what speeddoes it reach? (e = 1.60 × 10-19 C , melectron = 9.11 × 10-31 kg
A positively charged oil droplet remains in the electric field between twohorizontal plates, separated by a distance 1 cm. If the charge on the drop is3.2 x 10^-19 C and the mass of the droplet is 10^-14 kg what is the potentialdifference between the plates? Now if the polarity of the plates is reversedwhat is the instantaneous acceleration of the droplet?
You have been linked to a version of you where you have hotdogs for fingers, fearing that Jotaro is coming for your life you need to get back, and in order to get back you need to supply a specific amount of electricity to your pinky toe with a battery from a princess playhouse. However the conversions are different here, supplied with the knowledge from Alphaverse Waymond figure out how much energy is needed to supply 5 eV to your pinky toe. How much haays is needed? (1eV=1.6x10^-19 J; 1 J = 5 aken; 1 aken = 30 haays) a. 1.2 x 10^-16 haays b. 1.125 x 10 ^ 22 haays c. 4.5 x 10 ^ 20 haays d. 5.0 x 10 ^ 17 haays
Suppose a droplet of unknown mass remains suspended against gravity when electric field is -2.70×10^5N/C. What is the minimum mass of the droplet.
f a proton and electron are released when they are 2.0 m apart, find the initial acceleration of electron (in m/s2). The answer (in fundamental SI unit) is ___________ (type the numeric value only)
I have placed an electron at the origin. The grid spacing is 1 Angstrom per small square. Now place an atomic nucleus with 13 protons on positive x-axis, at x = 4.2 Angstroms. How much work did it take you to bring this nucleus in from 1 m away? 53.4 eV 35.6 eV 44.5 eV 26.7 eV
A positron (a particle with a charge +e and a mass equal to that of electron) that is accelerated from rest between two points at a fixed potential difference acquires a speed of 9.0x10^7 m/s. What speed is achieved by a proton accelerated from rest between the same two points? (Disregard relativistic effects.) a) 2.5x10^6 m/s b) 2.1x10^6 m/s c) 2.8x10^7 m/s d) 4.9x10^7m/s e) None of the Above