HomeworkLib
Question

(6%) Problem 10: Two point charges Q1-Q2-+1.8 nC are fixed symmetrically on the x-axis at x = ±0.062 m. A point particle of charge Q3 = +4.4 μ.C and mass m 13 mg can move freely along the y-axis If the particle on the y-axis is released from rest at y-0.016 m, what will be its speed, in meters per second, when it reaches y2 0079 m? Consider electric forces only.

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

10.

8 メー-6.062 USin +6.062)2

using conservation of energy

electric potential energy of Q3 at A = electric potential energy of Q3 at B + kinetic energy

kQ1Q3/r + k Q2 Q3/r = kQ1Q3/r' + k Q2 Q3/r' + (0.5) m v2

k (Q1 + Q2) Q3/r = k (Q1 + Q2) Q3/r' +   (0.5) m v2

(9 x 109) ((1.8 x 10-6)+ (1.8 x 10-6)) (4.4 x 10-6)/0.064 = (9 x 109) ((1.8 x 10-6)+ (1.8 x 10-6)) (4.4 x 10-6)/0.1 +   (0.5) (13 x 10-6) v2

v = 351.24 m/s

0 0
Add a comment
Know the answer?
Add Answer to:
(6%) Problem 10: Two point charges Q1-Q2-+1.8 nC are fixed symmetrically on the x-axis at x...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Two point charges Q1 = Q2 = +1.3 μC are fixed symmetrically on the x-axis at...

    Two point charges Q1 = Q2 = +1.3 μC are fixed symmetrically on the x-axis at x = ±0.172 m. A point particle of charge Q3 = +4.8 μC and mass m = 13 mg can move freely along the y-axis. a) If the particle on the y-axis is released from rest at y1 = 0.024 m, what will be its speed, in meters per second, when it reaches y2 = 0.065 m? Consider electric forces only.

  • Three charged particles of q1 = 30.0 nC, q2 = -30.0 nc, and q3 = 15.0 nC are placed on the y-axis, as shown in the figure.

    Three charged particles of q1 = 30.0 nC, q2 = -30.0 nc, and q3 = 15.0 nC are placed on the y-axis, as shown in the figure. Charge q1 has the coordinates (0, 12.0 cm), q2 has the coordinates (0, -12.0 cm), and q3 is located at the origin. (a) Find the electric potential energy in J) of the configuration of the three fixed charges. (b) A fourth particle, with a mass of 1.74 x 10-13 kg and a charge of q4 =...

  • Two point charges are placed on the x-axis as follows: charge q1 = 4.04 nC is...

    Two point charges are placed on the x-axis as follows: charge q1 = 4.04 nC is located at x= 0.203 m , and charge q2 = 5.04 nC is at x= -0.296 m .What is the magnitude of the total force exerted by these two charges on a negative point charge q3 = -6.03 nC that is placed at the origin?

  • Consider two point charges located on the x axis: one charge, q1 = -10.0 nC ,...

    Consider two point charges located on the x axis: one charge, q1 = -10.0 nC , is located at x1 = -1.650 m ;the second charge, q2 = 36.5 nC , is at the origin (x=0.0000). What is the net force exerted by these two charges on a third charge q3 = 52.0 nC placed between q1 and q2 at x3 = -1.205 m ?

  • Consider two point charges located on the x axis: one charge, q1 = -17.0 nC ,...

    Consider two point charges located on the x axis: one charge, q1 = -17.0 nC , is located at x1 = -1.725 m ; the second charge, q2 = 38.0 nC , is at the origin (x=0.0000). What is the net force exerted by these two charges on a third charge q3 = 46.0 nC placed between q1 and q2 at x3 = -1.080 m ?

  • Iwo particles, with charges of q1-90.U nC and q2 =-90.0 nC, are placed at the points...

    Iwo particles, with charges of q1-90.U nC and q2 =-90.0 nC, are placed at the points with coordinates (0, 12.00 cm) and (0,-12.00 cm) as shown in the figure below. A particle with charge q3-45.0 nC is located at the origin. (a) Flnd the electric potentlal energy of the conflguratlon of the three fixed charges (b) A fourth particle, with a mass of 2.28 x 10-13 ka and a charge of q4 = 180.0 nC, is released from rest at...

  • Two point charges are placed on the x-axis as follows: charge q1 = 3.98 nC is located at x = 0.196 m, and charge q2 = 4.97 nC is at x =-0.296 m.

     Two point charges are placed on the x-axis as follows: charge q1 = 3.98 nC is located at x = 0.196 m, and charge q2 = 4.97 nC is at x =-0.296 m. Part A What is the magnitude of the total force exerted by these two charges on a negative point charge q3 =-6.03 nC that is placed at the origin? Part B What is the direction of the total force exerted by these two charges on a negative point charge q3 =...

  • Consider two point charges located on the x axis: one charge, q1 = -15.5 nC ,...

    Consider two point charges located on the x axis: one charge, q1 = -15.5 nC , is located at x1 = -1.695 m ; the second charge, q2 = 30.5 nC , is at the origin (x=0.0000). What is the net force exerted by these two charges on a third charge q3 = 53.0 nC placed between q1 and q2 at x3 = -1.120 m ? Your answer may be positive or negative, depending on the direction of the force.

  • Consider two point charges located on the x axis: one charge, q1 = -15.5 nC ,...

    Consider two point charges located on the x axis: one charge, q1 = -15.5 nC , is located at x1 = -1.695 m ; the second charge, q2 = 30.5 nC , is at the origin (x=0.0000). What is the net force exerted by these two charges on a third charge q3 = 53.0 nC placed between q1 and q2 at x3 = -1.120 m ? Your answer may be positive or negative, depending on the direction of the force.

  • A point charge q1 = 4.00 nC is placed at the origin, and a second point charge q2 = -2.90 nC is placed on the x-axis at x=+ 20.5 cm

    A point charge q1 = 4.00 nC is placed at the origin, and a second point charge q2 = -2.90 nC is placed on the x-axis at x=+ 20.5 cm . A third point charge q3 = 1.90 nC is to be placed on the x-axis between q1 and q2. (Take as zero the potential energy of the three charges when they are infinitely far apart.)a) What is the potential energy of the system of the three charges if q3...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT