Physics, 17.08.2021 07:10 joannegrace869
hai xe máy khởi hành cùng lúc tại A. xe thứ nhất chuyển động với tốc độ 60km/h, xe thứ hai chuyển động với tốc độ 48km/h. Hỏi sau 1h48', hai xe cách nhau bao xa?
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A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?
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Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j
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=force × distance a. work b. velocity c. pressure d. momentum
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Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line
Answers: 2
hai xe máy khởi hành cùng lúc tại A. xe thứ nhất chuyển động với tốc độ 60km/h, xe thứ hai chuyển độ...
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