Physics, 17.12.2021 14:00 lilgunter12
Một dòng điện có cường độ I=10Achạytrongmộtdây dẫn rất dài, phần giữa có dạng một cung tròn bán kính R = 20 cm như hình vẽ. Biết góc = 600. Hệ thống đặt trong không khí. Xác định hướng và độ lớn của vectơ cảm ứng từ tại tâm O của cung tròn.
Answers: 1
Physics, 21.06.2019 20:00
The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.
Answers: 1
Physics, 22.06.2019 12:30
An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.
Answers: 1
Physics, 22.06.2019 13:40
What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th
Answers: 1
Physics, 22.06.2019 14:00
Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3
Answers: 3
Một dòng điện có cường độ I=10Achạytrongmộtdây dẫn rất dài, phần giữa có dạng một cung tròn bán kính...
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