electric field is produced by a A) a constant or a changing magnetic field. C) changing magnetic field. B) constant magnetic field. D) none of the given answers 2) An electron and a proton are released simultaneously from rest and start moving toward each other due to their electrostatic attraction, with no other forces present. Which of the following statements are true just before they are about to collide? (There could be more than one correct choice.) A) They both have the same speed. B) They are closer to the to the initial position of the electron that to the initial position of the 2) proton. C) The electrostatic force on the proton is greater than the electrostatic force on the electron. D) They are at the midpoint of their initial separation. E) They are closer to the to the initial position of the proton that to the initial position of the electron. 3) In outer space, a positive charge q is released near a positive fixed charge Q, as shown in the figure. As q moves away from Q, what is true about the motion of g? (There may be more than one correct choice.) 3) ** A) It will move with increasing speed. C) It will move with increasing acceleration. B) It will move with decreasing speed. D) It will move with decreasing acceleration. 4) Which of the following is not a vector? A) electric line of force C) electric field B) electric potentia; D) electric force 5) An equipotential surface must be A) perpendicular to the electric field at any point. B) parallel to the electric field at any point. 5) 6) For an electron moving in a direction opposite to the electric field A) its potential energy decreases and its electric potential decreases. B) its potential energy increases and its electric potential decreases. C) its potential energy decreases and its electric potential increases. D) its potential energy increases and its electric potential increases. 7) Electric field lines near psitive point charges 7) A) radiate inward. B) circle counter-clockwise. C) radiate outward. D) circle clockwise.

You start out by driving 60 miles south in 4 hours and 18 minutes, and then you stop and park for a while. Finally you drive another 45 miles north in 2 hours and 33 minutes. The average velocity for your entire trip was 1.75 miles per hour to the south. How much time did you spend parked?     0 hours 51 minutes     8 hours 33 minutes     1 hours 42 minutes     3 hours 25 minutes

Tectonic plates are large segments of the Earth's crust that move slowly. Suppose that one such plate has an average speed of 3.21 cm/year. Hint a. What distance does it move in 1.71 s at this speed in nanometers? It moves a distance of nm. b. What is its speed in kilometers per million years? Its speed is km/million years.

Do fast, just answer.