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Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.
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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?
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Physics, 22.06.2019 23:00
Which of the following describes how a microwave heats food
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Chiếu ánh sáng đơn sắc bước sóng= 0,5m vào một lỗ tròn có bán kính chưa biết. Nguồn sáng điểm đặt...
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