1. Four equal strips A, B, C and D were cut from a potato whose cell sap concentration was 28.5% sugar. The strips were placed in sugar solutions of different concentrations as
follows: A-10%, B-15%, C-25% and D-35%.
(i) What changes would you expect in strips A and D?

100 pounds is 100 pounds no matter the object or item being weighed

One answer could be erosion

The answer is 4f======since electrostatic force is given by    we let f be the electrostatic force when  r = 1 m    if we let  denote the electrostatic force when the distance is decreased so that r = 0.5m, then    we established earlier that f = kq₁q₂. therefore    the force will now be 4f.