Charges q1 =100 micro coulomb and q2 = 50 micro coulomb are located in xy-plane at positions r1 =3j and r2 = 4i respectively. where the distance is measured, calculate the force of q2?

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?

Which sound characteristic is not affected by the relative motion of an object

Give an example in which the electrical energy changes to light energy