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1. What is the gravitational force on a 3.40 kg mass in a gravitational field with a strength of 9.81 N/kg? (33.4 N)
2. A -140. μC charge experiences a force of 1.50 N to the right. What is the magnitude and direction of the electric field? (1.07E4 N/C Left)
3. A 3.20 kg mass on the moon experiences a force of 5.15 N. What is the gravitational field strength on the moon? (1.61 N/kg)
4. A 72,100 N/C electrical field to the right exerts what force on a proton? (Force and direction) (1.16E-14 N Right)
5. A proton accelerates North at 9.58x108 m/s/s. What is the magnitude and direction of the electric field? (10.0 N/C North)
6. An electron is in a 317 N/C electric field to the West. What is the magnitude and direction of its acceleration? (5.57E13 m/s/s East)
7. What is the electrical field 82.0 cm to the right of a -2.10 μC charge? (Magnitude and direction) (2.81E-4 N/C Left)
8. Where is the electrical field 1.25x104 N/C straight up in the proximity of a 13.0 μC charge. (Location and distance) (3.06 m above the charge)
9. I am 2.15 m to the left of an unknown charge, and there is an electric field of 1.65x105 N/C to the right. What is the magnitude and polarity of the charge? (How many C, and is it + or -) (-84.8E-6 C, must be a negative charge)
10a. What is the gravitational field on the surface of a planet with a mass of 1.60x1023 kg, and a radius of 1.85x106 m? (3.12 N/kg)
10b. What is the gravitational field 3.50 m to the left of a (very dense) mass of 6.40x1012 kg? (Magnitude and direction) (34.8 N/kg right)
11. Where in the proximity of a 5.00 kg shot put is the gravitational field 2.08x10-11 N/kg to the right? (Location and distance) (4.00 m to the left of the mass)
12. I am 15.0 m to the right of an unknown mass and there is a gravitational field of 2.16 N/kg due to the mass. Which direction is the field, and what is the mass? (Field is to the left (toward the mass), and the mass is 7.29E12 kg)
13. Find the gravitational field at p and q:
p = 17.2 N/kg right
q = 48.9 N/kg left
14. Find the electric field at p and q:
p = 242 N/C left
q = 359 N/C left
15. Find the electric field at point p. Draw the electric field vector, and label its magnitude and direction. Charge A is -3.20 µC, B is +2.40 µC, and each grid line is a meter.
3135 N/C right and up 1.20 degrees above the x axis
16. Find the gravitational field at point p. Draw the gravitational field vector, and label its magnitude and direction. Mass A is 2.50x1012 kg, B is 5.10xs1012 kg, and each grid line is a meter.
36.2 N/kg left and up 25.9 degrees above the x axis
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