1. What is the force on, and the electric field surrounding (magnitude and direction) an electron if it is accelerated upward at 5.20x10 15 m/s/s? (4.74x10.

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Presentation transcript:

1. What is the force on, and the electric field surrounding (magnitude and direction) an electron if it is accelerated upward at 5.20x10 15 m/s/s? (4.74x N up, 2.96x10 4 N/C down)

2. A 1.50-gram object is suspended against gravity between two horizontal parallel plates that are 5.20 cm apart. What charge does the object have if this requires 537 V to accomplish? If the top plate is negative, is the charge positive or negative? (+1.42 µC, positive)

3. Two point masses have a force of attraction of 2.30x N when they are separated by 56.0 cm. What is their separation if the force of attraction is 5.80x N? (35.3 cm)

4. Find the net force and direction on mass A and mass B: (A: 10.8 N right, B: 1.72 N left)

5. Each grid line is a meter. Charge A is µC, and charge B is µC, and C is µC. Calculate the force on charge A. Draw the force vector and label its magnitude and direction. (144 N left and up at 68.4 o above the x-axis)