Que fuerzas se ejerce sobre una pizarra colgada (con dos cuerdas)?

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

Use vsepr theory to predict the molecular geometry of the molecule hcn.

When connected to a 120 v outlet, a light bulb consumed a power of 50.4 watts. what is the current flowing through it?