2. a truck is traveling east through mud that is slowing down its speed. with west defined as negative, which of the following is correct? a. both its velocity and acceleration are negative. b. both its velocity and acceleration are positive. c. its velocity is positive but its acceleration is negative. d. its velocity is negative but its acceleration is positive. e. both its velocity and acceleration are 0, since both properties are vectors.

The space within which a test north pole experiences a force magnetic poles 2. a powerful stream of electrons flowing high above the earth in the ionosphere electrojet 3. a concept to explain the directional nature of a magnetic field field lines 4. coil of wire designed to produce a magnetic field by a current passing through its windings ionosphere 5. that region above the earth's atmosphere where particles exist in an ionized state magnetic field 6. the extremities of a magnet where the field lines tend to converge or concentrate aurora borealis 7. a phenomenon that occurs in the northern latitudes; the northern lights solenoid