Physics, 03.06.2021 23:10 alexwlodko
Un bloque de 0,25kg comprime 10cm un resorte de constante K= 50N/m en la posicion A de una superficie horizontal lisa AB, Si se suelta el resorte el bloque se dispara y pasa por el punto B hasta alcanzar su maxima altura en C. Calcule: a) el DLC
b) plantear ecuaciones
c) la energia mecanica
Answers: 1
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The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.
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Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marblesβ motions be changed? ?
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Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2
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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
Answers: 2
Un bloque de 0,25kg comprime 10cm un resorte de constante K= 50N/m en la posicion A de una superfici...
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