Two spheres of radii 5cm and 10cm are given charges 100c and 50c respectively and then connected by a wire. calculate the loss of energy after connection.​

Which instrument is used to measure air temperature

If frequency goes down, what happens to wavelength? does it get shorter or longer?

Your physics assignment is to figure out a way to use electricity to launch a small 6.0-cm-long plastic drink stirrer. you decide that you'll charge the little plastic rod by rubbing it with fur, then hold it near a long, charged wire, as shown in figure p23.56 . when you let go, the electric force of the wire on the plastic rod will shoot it away. suppose you can uniformly charge the plastic stirrer to 10 nc and that the linear charge density of the long wire is 1.0 x10-7 c/m. what is the net electric force on the plastic stirrer if the end closest to the wire is 2.0 cm away?