Physics, 10.12.2021 02:50 KariSupreme
Bắt đầu từ trạng thái nghỉ, một DVD tăng tốc đều đến 450 vòng/phút trong 1 s, quay với tốc độ góc này trong 3 s, sau đó giảm đều xuống đến khi dừng lại trong 2 s. Xác định số vòng quay của đĩa DVD?
Answers: 1
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Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
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(8%) problem 12. a bowling ball of mass mb 3 kg 's rolled down the lane with a velocity ofy-2/ m s lt strikes a single remaining pin mp 0.93 kg head on. after the collision the bowling ball has a velocity (in the same direction) of v2 1.1 m/s. = ▲ 33% part (a) write an expression for the velocity of pin in the horizontal direction after the impact, im ,, 33% part (b) what is the pins speed in ms? 33% part (c) assuming the coefficient of friction s μ,-0.1. how far in meters could the pin slide before stopping if it doesn't topple?
Answers: 1
Bắt đầu từ trạng thái nghỉ, một DVD tăng tốc đều đến 450 vòng/phút trong 1 s, quay với tốc độ góc nà...
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