a coolie of 40 kg carries 20 kg salt and climbs up 20 steps of 20 centimeters each in 2 minutes. calcjlate the work done by him and his power

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.

The energy produced as a result of this flow of electrons from atom to atom is called