Joann has rubbed a balloon with wool to give it a charge of -1.0 x 106 C. She then acquires a plastic golf tube with a charge of +4.0 x 106 C localized at a given position. She holds the location of charge on the plastic golf tube a distance of 50.0 cm above the balloon. Determine the electrical force of attraction between the golf tube and the balloon.

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COULOMB'S LAW OF ELECTROSTATIC FORCE
Name:
Score:
Section:
Date:
INSTRUCTION: Solve the following problems. Draw and label all diagrams illustrating each situation.
Also, draw and label all vector diagrams. Write your solution below the problems and on another sheet
of paper.
1. Joann has rubbed a balloon with wool to give it a charge of -1.0 x 10-6 C. She then acquires a
plastic golf tube with a charge of +4.0 x 10 C localized at a given position. She holds the
location of charge on the plastic golf tube a distance of 50.0 cm above the balloon. Determine
the electrical force of attraction between the golf tube and the balloon.
2. Two vinyl balloons with an identical charge are given a separation distance of 52 cm. The
balloons experience a repulsive force of 2.74x10-3 N. Determine the magnitude of charge on
each one of the balloons.
3. Two objects with charges Q1 and Q2 experience an electrical force of attraction of 8.0x10-4 N
when separated by a distance of d. Determine the force of attraction if the same objects are
separated by a distance of 2d and each object having double the charge.
4. Given three charges in a standard coordinate system, calculate the magnitude and direction
of the net electrostatic force on charge A.
Charge A:
Charge B: -20 µC at (+0 m, +3 m)
Charge C: +25 µC at (-4 m, +0 m)
+10 µC at (+0 m, +0 m)
5. Three point charges are placed along the X-axis. Charge A is a +18 nC charge placed at the
origin. Charge B is a -27 nC charge placed at the 60 cm location. Where along the axis (at what
x-coordinate?) must a positively charged C be placed in order for it to be at equilibrium? Hint:
Recall the definition of static equilibrium.
???
(B)
30 -20 -10
10 20 30 40 50
70 80 am
Transcribed Image Text:COULOMB'S LAW OF ELECTROSTATIC FORCE Name: Score: Section: Date: INSTRUCTION: Solve the following problems. Draw and label all diagrams illustrating each situation. Also, draw and label all vector diagrams. Write your solution below the problems and on another sheet of paper. 1. Joann has rubbed a balloon with wool to give it a charge of -1.0 x 10-6 C. She then acquires a plastic golf tube with a charge of +4.0 x 10 C localized at a given position. She holds the location of charge on the plastic golf tube a distance of 50.0 cm above the balloon. Determine the electrical force of attraction between the golf tube and the balloon. 2. Two vinyl balloons with an identical charge are given a separation distance of 52 cm. The balloons experience a repulsive force of 2.74x10-3 N. Determine the magnitude of charge on each one of the balloons. 3. Two objects with charges Q1 and Q2 experience an electrical force of attraction of 8.0x10-4 N when separated by a distance of d. Determine the force of attraction if the same objects are separated by a distance of 2d and each object having double the charge. 4. Given three charges in a standard coordinate system, calculate the magnitude and direction of the net electrostatic force on charge A. Charge A: Charge B: -20 µC at (+0 m, +3 m) Charge C: +25 µC at (-4 m, +0 m) +10 µC at (+0 m, +0 m) 5. Three point charges are placed along the X-axis. Charge A is a +18 nC charge placed at the origin. Charge B is a -27 nC charge placed at the 60 cm location. Where along the axis (at what x-coordinate?) must a positively charged C be placed in order for it to be at equilibrium? Hint: Recall the definition of static equilibrium. ??? (B) 30 -20 -10 10 20 30 40 50 70 80 am
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