yct/itemView?assignmentProblemD 92981481 Secure https/ HW 4: Ch 25, some of Ch 2
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yct/itemView?assignmentProblemD 92981481 Secure https/ HW 4: Ch 25, some of Ch 26 Problem 25.18 nproton-beam therapy, a high-energy beam of protions s fired at a tumor. As the protons stop in the tumor, their kintic energy breaks apart the tumors DNA, thus killing the tumor cels. For one patient, t is dosired to depost 0.11 J of proton energy in the tumor. To creabe the protion beam, protons are accelerated from rest theough a PartA What is the total charge of the protons that must be fired at the tumor? Express your answer to two significant figures and include the appropriate units 2-10t kV potenitial diference Value nits Previous Answers Request Answer X Incorrect: Try Again Provide Feedback O Type hese to search 5 Tab Caps Lock FnExplanation / Answer
From work energy theorem
k = q * delta V
q = k / delta V
= (0.11) / (1.2 * 104 * 103)
total charge = 9.17 * 10-9 C
= 9.17 nC
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