What occurs when the surface of a large body of water is heated by the sun and the water at the depths remains cool because of lack of sun light?
a. a halocline
b. a halothermocline
c. a thermocline
d. a pynocline

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

Which statements did both aristotle and ptolemy assume? check all that apply.

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