Which statement describes the magnetic field inside a bar magnet? O It points from north to south.
Olt points from south to north.
O It forms loops inside the magnet.
O There is no field within the magnet.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.