The diagram shows an inclined plane. length 120 in. height 30 in. what is the mechanical advantage of the inclined plane? a. 0.25 b. 4 c. 90 d. 150

What practical value did astronomy offer to ancient civilizations?

Galileos view of arrangement of the universe

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