Which property of coal makes it ideal for use in a power plant? check all that apply.

it burns easily.
it makes ash.
it is renewable.
it produces a lot of energy.
it contains mercury.

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?

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?

Which is an advantage of subdividing science into different areas?