Physics, 18.10.2021 07:10 martinezizzie
Một phích cách nhiệt chứa 139 cm3 cà phê ở 80°C. Bạn bỏ vào trong đó 12g nước đá ở nhiệt độ tan để làm lạnh cà phê. Cà phê sẽ lạnh đi bao nhiêu độ khi nước đá tan hết (coi nhiệt dung riêng của cà phê như nước nguyên chất).
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Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.
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How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,ℓ=2n=4,ℓ=2 electronselectrons =6,ℓ=ℓ=−1n=6,ℓ=2,mℓ=−1
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Một phích cách nhiệt chứa 139 cm3 cà phê ở 80°C. Bạn bỏ vào trong đó 12g nước đá ở nhiệt độ tan để l...
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