Physics, 25.08.2021 19:30 batmandillon21
Một đoàn tàu khối lượng 50 tấn chuyển động trên đường ray nằm ngang với vận tốc không đổi 36 km/h. Công suất của đầu máy là 220,8 kW. Tính hệ số ma sát
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Physics, 21.06.2019 20:30
Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?
Answers: 3
Physics, 22.06.2019 23:30
An electric power distributor charges residential customers $0.10 per kilowatt-hour (kwh). the company advertises that "green power" is available in 150 kwh blocks for an additional $4 per month. (green power is generated from solar, wind power, and methane sources.) if a certain customer uses an average of 391 kwh per month and commits to one monthly 150 kwh block of green power, what is her annual power bill
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Physics, 23.06.2019 02:00
Estimate the magnitude of the electric field due to the proton in a hydrogen atom at a distance of 5.29×10 to the power of −11 m, the expected position of the electron in the atom.
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Physics, 23.06.2019 02:00
Elements on the periodic table are ordered according to their
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Một đoàn tàu khối lượng 50 tấn chuyển động trên đường ray nằm ngang với vận tốc không đổi 36 km/h. C...
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