If you are on a field trip to the ocean and you recovered 250 grams of ocean salts from a sample of ocean water, based on known percentages of dissolved solids in ocean water, what would be the mass of chlorine in the sample?

Except hold on to his or her beliefs even if there is no evidence for those beliefs.

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on