The volume of a stone is to be found using the equipment illustrated, the following five steps are intended to describe how the volume of the stone is found copy and complete the sentences by adding appropriate words a)pour some ___ into the measuring cylinder
b)take the reading of the from the scale on the measuring cylinder
c)carefully put into the measuring cylinder
d)take the new reading of the ___ from the scale of the measuring cylinder
e)calculate the volume of the scale by ___

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.