wo identical charges, each 8.45x10-5 coulombs are separated by 0.25 meters. What is the force of repulsion between the charges in newtons? Express your answer in Scientific Notation.  Find the attractive force (in newtons) between a 5.10x10-5 coulomb point charge and a -5.87x10-5 coulomb point charge that are separated by 0.74 meters. A heating element with a resistance of 39.58 ohms operates on 55.34 volts. What current (in amps) does it draw? Round your final answer to the two decimal places.

You have likely experienced "static shock" recently.  The magnitude of charge transferred when you walk across a carpet, reach out and touch a doorknob, and unintentionally give yourself that static shock is around 2.98 nC (nC stands for nano-Coulomb).  In units of Giga-electrons, about how many electrons are transferred when you experience static shock?  Note:  it is understood that the unit of your answer is in billions of electrons (hence Giga-electrons), however do not explicitly include units in your answer.

Two charges lie in a line along the x axis. Charge 1 is q1 = 1.1 C and charge 2 is q2 = 2.15 C. They are each a distance of d = 0.093 m from the origin. What is the distance on the x-axis from the origin at which the electric field will be zero. Give your answer in meters.

Two point charges each with 0.15 CC of charge are 5.0×10−2 mm apart. Knowing that k is 9×10^9N⋅m^2/C  (the proportionality constant for Coulomb's law), find the force between the charges. Express your answer to two significant figures and include the appropriate units.