A plastic sheet with a uniform surface charge density of −3.90 µC/m2 lies in a horizontal plane. What charge (magnitude and sign) must a piece of Styrofoam with a mass of 30.0 g have, if it is in equilibrium (it hovers) below the sheet?

probably not the "magnets"in the magnet, so to speak, are thought to be electrons orbiting in shells. vurrent loops two sides to the loop

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!

heats surface water up