Which is the best example that something has potential energy? 1
a car parked on a steep hill
a tennis ball rolling across the court
a picture hanging on the wall
a piece of coal

i think so it’s will be b yes i believe its

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.