Cho mạch điện biết R1=R2=R3=R các vôn kế giống nhau vôn kế1 chỉ 12V vôn kế 2 chỉ 10V . Tìm chỉ số vôn kế 3 và hiệu điện thế ở hai đầu

Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands? a. no b. yes explain

The average atmospheric pressure on earth is approximated as a function of altitude by the relation patm = 101.325 (1 − 0.02256z)5.256, where patm is the atmospheric pressure in kpa, and z is the altitude in km with z = 0 at sea level. determine the approximate atmospheric pressures at atlanta (z = 306 m), denver (z = 1610 m), mexico city (z = 2309 m), and the top of mount everest (z = 8848 m).

Which of the following has the greatest impact on an ecosystem migratory animals predation human inference