A student rolls a ball at different speeds to try moving a box of sand.

hello friend!

Explanation:

IM not sure what your talking about but ima try the best i can

So lets go to newtons laws of motion, basically he said, more force, more movement. But it depends on how heavy the object is.

Sooo The more heavy the box of sand is, The more force he would have to use to move it. You can also relate this to how much he wnted to move it :)

Sorry if this didnt help :(

the correct answer is a

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.