What is the potential energy of a 2kg plant that sits on a windowsill that is 1.3m high

Which lists the organs in the correct order as food passes from the mouth to anus?

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c