Cho biết: R1 = 24, R2 = 12, R3 = 8, R4 = (6 + K) , E1 = 120V, E2 = 96V, E3= 40V 1. Hãy xác định giá trị dòng điện trong các nhánh.
2. Xác định công suất toàn mạch.
(k=5)

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.