I| INT A -2.0 nC charge and a +2.0 nC charge are located on the x-axis at x = -1.0 cm and x = +1.0 cm, respectively. a. At what position or positions on the x-axis is the electric field zero? b. At what position or positions on the x-axis is the electric potential zero? c. Draw graphs of the electric field strength and the electric potential along the x- axis.
I| INT A -2.0 nC charge and a +2.0 nC charge are located on the x-axis at x = -1.0 cm and x = +1.0 cm, respectively. a. At what position or positions on the x-axis is the electric field zero? b. At what position or positions on the x-axis is the electric potential zero? c. Draw graphs of the electric field strength and the electric potential along the x- axis.
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Transcribed Image Text:II INT A -2.0 nC charge and a +2.0 nC charge are located on the x-axis at x = -1.0 cm
and x = +1.0 cm, respectively.
a. At what position or positions on the x-axis is the electric field zero?
b. At what position or positions on the x-axis is the electric potential zero?
c. Draw graphs of the electric field strength and the electric potential along the x-
axis.
Transcribed Image Text:Problem #3
.I| BIO In proton-beam therapy, a high-energy beam of protons is fired at a tumor. The
protons come to rest in the tumor, depositing their kinetic energy and breaking apart the
tumor's DNA, thus killing its cells. For one patient, it is desired that 0.10 J of proton energy
be deposited in a tumor. To create the proton beam, the protons are accelerated from rest
through a 10 MV potential difference. What is the total charge of the protons that must be
fired at the tumor to deposit the required energy?
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