# science

Three point charges are located on the x-axis. The first charge, q1 = 10.0 µC, is at x = -1.00 m; the second charge, q2 = 20.0 µC, is at the origin; and the third charge, q3 = -30.0 µC, is located at x = 2.00 m. Which charge is subjected to the force of greatest magnitude?
q1
q2
q3
q1 and q2 (equal)
q2 and q3 (equal)

1. 👍 0
2. 👎 1
3. 👁 54
1. net force on q1: kq1q2/1^2+kq1q2/3^2= k(10*20)/1+k(10(-30))/9
= k 200-33 to left Ignoring units
net chage on q2: kq2q1/1^2 +kq2q3/2^2= 200k (to left) +600k/4 to right
= k150 to left
net force on q3= kq3q1/9 (to left) + kq3q2/4
= k30/9 to left + k600/9 (to left) + k30*20/4 to left
= k217 to left
check my math and direction of forces

1. 👍 0
2. 👎 0

## Similar Questions

1. ### physics

A point charge Q = -400 nC and two unknown point charges, q1 and q2, are placed as shown. Point charge q1 is located 1.3 meters along the +x-axis, point charge q2 is located 0.7 meters down the -y-axis, and point charge Q is

asked by realjae on April 16, 2018
2. ### science

three point charges are located on the positive y-axis of a coordinate system.charge q1 = -2.09 nC is 2.05 m from the origin and charge q2 = +2.70 nC is 3.25 m from the origin, and the third charge q3 = -2.56 nC is located 5.03 m

asked by glen on July 23, 2014
3. ### physic

two point charges are located on the y axis as follows : charge q1 = -1.50nc at y= -0.600m, and charge q2 = +3.2nc at the origin (y=0) what is the net force (magnitude and direction) exerted by these two charges on a third charge

asked by yanis on February 12, 2013
4. ### physic

two point charges are placed on the x axis as follows: charge q1 = +4.00 nc is located at x = 0.200 m, and charge q2 = +5.00 nc is at x = -0.300 m what ae the magnitude and direction of the net force exerted by these two charges

asked by yanis on February 13, 2013
5. ### physics, help! urgent!

A positive point charge q = +2.50 nC is located at x = 1.20 m and a negative charge of ƒ{2q = ƒ{5.00 nC is located at the origin. (a) Sketch the electric potential verses x for points on the x-axis in the range -1.50 m < x <

asked by Ella on November 14, 2012
6. ### PHYSICS

Two point charges are placed on the x axis as follows: Charge q1= 4.20 is located at x= 0.185 , and charge q2= 4.80 is at x= -0.280 . What are the magnitude and direction of the net force exerted by these two charges on a negative

asked by Anonymous on September 19, 2012
7. ### physics

Two point charges are placed on the x axis as follows: Charge q1= +4.00 nC is located at x= 0.200 m, and charge q2= +5.00nC is at x= -0.300 m. What are the magnitude and direction of the net force exerted by these two charges on a

asked by Jen on January 21, 2008
8. ### Physics

Two point charges are located on the y axis as follows: charge q1 = -2.50nC at y1 = -0.700m , and charge q2 = 3.30nC at the origin (y = 0). What is the magnitude of the net force exerted by these two charges on a third charge q3 =

asked by Molly on September 7, 2014
9. ### science

Two point charges are placed on the x-axis a follows: charge q1= +4.00nC is located at x=0.200m, and charge q2= +5.oonC is at x=-0.300m. What are the magnitude and direction of the total force exerted by these two charges on a

asked by jay on December 13, 2012
10. ### physic

two point charges are placed on the x axis as follows: charge q1 +4.00nc is located at x = 0.200m, and charge q2 = +5.00nc is at x = -0.300m what are the magnitude and directionof the net force exerted by these two charges on a

asked by yanis on February 12, 2013
11. ### elect and magn

a postive charge of q is located at x=0 and y=-a, and a negative charge -q is located at the point x=0 and y=+a. A.) derive an expression for the potential V at points on the y-axis as a function of the coordinate y. take V to be

asked by Anonymous on February 28, 2012

More Similar Questions