A 2 ųC charge and a -12ųC charge are placed as shown on the x-axis. Where would a -10ųC charged be placed so the 2ųC would receive a net force of zero? Answer in centimeters
What charge would be placed at 18 cm so the net force on the -12ųC charge is zero?
Answer in ųC

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

What object a collides with object b and bounces back its final momentum is?

A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.