A uniform electric field, with a magnitude of 600 N/C, is ...

[pepyto]

A uniform electric field, with a magnitude of 600 N/C, is directed parallel to the positive x axis. If the potential at x = 4.0 m is 1000 V, what is the change in potential energy of a proton as it moves from x = 4.0 m to x = 1.0 m? (qp = 1.6  10-19 C)
 a. 500 J
  c. 1.9  10-16 J
  b. 2.9  10-16 J
  d. 8.0  10-17 J

Question 2

A 70-kg man is standing in a 20-kg boat. Thinking he is stepping out onto the dock, the man steps to the right. However, the following will actually happen (ignore the friction of the water or air on the boat or the man):
 a. The man only moves a short distance to the right while the boat moves a larger distance to the left.
  b. The man actually stays still while the boat moves toward the left.
  c. The boat doesn't move and the man moves to the right.
  d. None of the above.

[dominiqueenicolee]

Answer to Question 1

B

Answer to Question 2

A

[pepyto]

Gracias!

[nyrave]

Excellent