Physics, 05.11.2019 01:31, triston12192000
Ablock of mass mm starts from rest and slides down from the top of a wedge of height hh and length dd. the surface of the wedge forms an angle of \thetaθ with respect to the horizontal direction. the force of kinetic friction between the block and the wedge is \vec{f} f . how fast is the block traveling when it reaches the bottom of the wedge?
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3. a worker pushes a 30.5 kg polished stone along a polished table with a force on bonin a straight line for 5.20 s after starting from rest. there is no friction between thestone and the table. at the end of the table. the stone is hooked to a cable with a lengthof 62.0 cm to rotate it to a rough table to store until they can be picked up. the roughtable has a coefficient of static friction 0.702 with the polished stone. remember that 8= 9.80 m/s2a) what is the speed of the stone when it is hooked to the cable? b) what is the tension in the cable while the stone is rotating? (there is still nofriction)c) how much force is needed to make the stone begin sliding from rest on therough table? ius = 0.70262.0 cm30.5 kg20.5 kg6= 0
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Find v1, the speed of the fluid in the left end of the main pipe. express your answer in terms of h1, h2, g, and either a1 and a2 or γ, which is equal to a1a2.
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Ablock of mass mm starts from rest and slides down from the top of a wedge of height hh and length d...
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