Trong khoảng thời gian đóng công tắc để chạy một tủ lạnh thì cường độ dòng điện trung bình đo đc là 6A khoảng thời gian đóng công tắc là 0,50s tính điện lượng dịch truyển qua tiếp diện thẳng của giây thanhwr nối với động cơ của tủ lạnh

The midpoints? a, b, and c are marked on the histogram. match them to the indicated scores. which? scores, if? any, would be considered? unusual?

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?