The temperature on land around the equator stays about the same throughout the year. this is because this area
a) has a greater tilt than other parts of the earth.
b) receives less direct sunlight throughout the year.
c) receives similar amounts of sunlight throughout the year.
d) receives more direct sunlight than other parts of the earth.

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground. what is his gravitational potential energy above the ground?