Bài 4: Có mạch điện như hình vẽ: R1 = 12 , R2=4, R3 = 6, R4 = 6 , R5 = 9 . Hiệu điện thế UAB = 24 V. a. Tính cường độ dòng điện qua mỗi điện trở. b. Tính hiệu điện thế UMN, UAN.

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Which feature of a heating curve indicates a change ofn state

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?