80kg Tyler rides a roller coaster at Carowinds, whose first hill drops 30m. What is Tyler’s potential energy at the top of the hill

Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain

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?

In a series circuit the __ is the same at every point