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26 Nov 2019

Point charges Q1 = + 2·10-6 C and Q2 = -6·10-6 C are fixed on the xaxis at x = -14 m and x = +14 m, respectively.

a.) Sketch the electric potential (voltage) on the x axis for thissystem.
(NOT FOR CREDIT -- but essential for the next parts.)

b.) Your sketch should show that there is a point on the x axisbetween the two charges where V=0.

Is this point closer to Q1 or Q2?
Choose one answer: 1. Q1 2. Q2 3. Neither its equidistant fromboth. 4. Not enough info

Does this make sense?
Please Explain: _______________________


Looking at your graph, is there an electric field at thispoint?
Choose one answer: 1. yes 2. no 3. not enough info

c.) Find the x coordinate of the point referred to in part b.
Answer: _____ m

d.) A +2 millicoulomb charge placed at rest at this point wouldhave:

a potential energy of: Answer: _____J (Anything significant aboutthis value?)
a kinetic energy of: Answer: _____ J
and it will move:
Choose one answer: 1. +x direction 2. -x direction 3. will not movesince PE=0 or 4. not enough info

e.) When this charge passes through the origin, it will have:

a potential energy of: Answer: _____ J
a kinetic energy of: Answer: _____ J

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A proton has an initial speed of 7·105 m/s. It is brought to restby an electric field.

a.) What is the magnitude of the voltage difference needed to bringthis charge to rest?
Answer: ____ V

b.) At the point when the proton comes to rest (momentarily):

its potential energy is:
Choose one answer: 1. larger 2. smaller 3. same as before 4. notenough info

and it is at a voltage that is ______as compared toinitially?
Choose one answer: 1. larger 2. smaller 3. same as before 4. notenough info

c.) The electric field must be pointed _____ the initial velocityof the proton, so that it is able to stop it.

Choose one answer: 1. same direction 2. opposite direction 3.perpendicular to 4. not enough info

d.) Describe the motion of the proton after it comes to rest(momentarily).

Question 8) Twp charges of −4 × 10−9C and−1.6 × 10−9C areseparated by a distanceof 43 cm. Find the equilibrium positionfor a thirdcharge of +1.8 × 10−8C by identifying itsdistance fromthe first charge q1.Answer in units of cm.

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Question 13 part 1 of 2) A 2.3 µC point charge is on the x-axisat x = 2.8 m , and a 4 µC
point charge is on the x-axis at x = 1.3 m .Find the magnitude ofthe net electric ?eld at the point on the y-axis where y =4.9 m .The value of the Coulomb constant is
8.98755 × 10^9N · m2/C2.
Answer in units of N/C.

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Question 17 Part 3 of 4) What is the magnitude of the netelectric fieldat the position of the charge at the origin?Answer inunits of N/C.

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Question 18 part 4 of 4) What is the direction of the netelectric field(as an angle between −180◦and +180◦ measured from thepositive x-axis, with counterclockwise positive).Answer in unitsof◦.

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THANK YOU SO MUCH GOD BLESS YOU! And please don't round upnumbers.



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