6. High energy proton beams can be used to kill cancer cells. The beam consists of protons with 2.5x10-" J and a current of 75 nA. Assume all the protons stop in the tumor. A total of 3.4x10-3 J is needed to treat the tumor. A. How fast are the protons moving? B. What is the energy of each proton and the total energy needed in eV? C. How many protons reach the tumor each second? D. How long should the beam run to deliver the required amount of energy to the tumor?

6. High energy proton beams can be used to kill cancer cells. The beam consists of protons with 2.5x10-" J and a current of 75 nA. Assume all the protons stop in the tumor. A total of 3.4x10-3 J is needed to treat the tumor. A. How fast are the protons moving? B. What is the energy of each proton and the total energy needed in eV? C. How many protons reach the tumor each second? D. How long should the beam run to deliver the required amount of energy to the tumor?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

6. High energy proton beams can be used to kill cancer cells. The beam consists of protons with 2.5x10-" J
and a current of 75 nA. Assume all the protons stop in the tumor. A total of 3.4x10-3 J is needed to treat
the tumor.
A. How fast are the protons moving?
B. What is the energy of each proton and the total energy needed in eV?
C. How many protons reach the tumor each second?
D. How long should the beam run to deliver the required amount of energy to the tumor?

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