Assume that air consists of the diatomic gases o2 and n2. how much must we increase the thermal energy of 1.0 kg of air in order to increase its temperature by 1.0°c?

Describe the path of the electric current through a circuit?

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.