Physics, 04.10.2021 18:20 corbinfisher
Cho cơ cấu tay quay con trượt ABC như hình; Khâu dẫn AB quay đều với vận tốc góc ω1= 10 rad/s; Kích thước và vị trí cơ cấu như sau: AB = 0,5m; ABC = 900; BAC = 600Tìm vC; ω2; aC; ε2= ?và nghiệm lại kết quả bằng phương pháp tâm vận tốc tức thời.
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On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?
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Physics, 22.06.2019 10:30
The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.
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Physics, 22.06.2019 14:30
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
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Cho cơ cấu tay quay con trượt ABC như hình; Khâu dẫn AB quay đều với vận tốc góc ω1= 10 rad/s; Kích...
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