In an electrical circuit, which of the following controls whether or not electrons flow through the circuit?

If vx = 7.00 units and vy = -7.60 units, determine the magnitude of v⃗ . determine the direction of v⃗ .

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.

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec