physics
posted by Mischa .
Three point charges, q1, q2, and q3, lie along the xaxis at x=0, x=3 cm, and x=5 cm, respectively. Calculate the magnitude and direction of the electric force on each of the three points when q1=+6.0 muC, q2=+1.5 muC, and q3=2.0 muC.
I would add the forces. Watch direction. Draw a figure, label the directions (like charges repel, unlike attract) at each point. That way, you wont get the signs wrong.
Example: at q2, the right charge pulls the q2 to right (call that positive), and the left charge repels it to the right (again positive) so in this case the forces add to the right.

p00p
Respond to this Question
Similar Questions

physics check
1. three point charges, q1, q2, q3, lie along the xaxis at x = 0,3,5, respectively. Calculate the magnitude and direction of the net electric force on q1 if q1 = +6 x 10^6 C, q2 = +1.5 X 10^6 C and q3 = 2.0 x 10^6 C. my answre … 
why doesn't anybody ever help me.
1. three point charges, q1, q2, q3, lie along the xaxis at x = 0,3,5, respectively. Calculate the magnitude and direction of the net electric force on q1 if q1 = +6 x 10^6 C, q2 = +1.5 X 10^6 C and q3 = 2.0 x 10^6 C. my answre … 
Physics
The figure below shows two pint charges, each of 2Q, fixed on the yaxis at y = +a and at y = a . A third points charge Q is placed on the xaxis at x = 2a . Express all algebraic answers in terms of Q, a, and fundamental constants. … 
physics
Three point charges are fixed in place in a right triangle. What is the electric force on the q = 0.63 µC charge due to the other two charges? 
physics
Three point charges, +6.5 ¦ÌC, +1.4 ¦ÌC, and −3.9 ¦ÌC, lie along the xaxis at 0 cm, 1.8 cm, and 5.3 cm, respectively. What is the force exerted on q1 by the other two charges? 
Physics
The Superpostion Principle: Three point charges q1, q2 and q3 like along the xaxis at x=0, x=3.0cm and x=5.0cm, respectively. calculate the magnitude and direction of the electric force on each of the three point charges when q1 = … 
physics
Three point charges, +6.0 µC, +1.7 µC, and −2.3 µC, lie along the xaxis at 0 cm, 1.7 cm, and 6.0 cm, respectively. What is the force exerted on q1 by the other two charges? 
physics
Three point charges, +6.0 µC, +1.7 µC, and −2.3 µC, lie along the xaxis at 0 cm, 1.7 cm, and 6.0 cm, respectively. What is the force exerted on q1 by the other two charges? 
physics
Three point charges, +6.0 µC, +1.7 µC, and −2.3 µC, lie along the xaxis at 0 cm, 1.7 cm, and 6.0 cm, respectively. What is the force exerted on q1 by the other two charges? 
physics
Three point charges, +6.5 μC, +1.8 μC, and −3.4 μC, lie along the xaxis at 0 cm, 1.7 cm, and 5.4 cm, respectively. What is the force exerted on q1 by the other two charges?