Physics, 03.07.2019 02:00 hncriciacheichi
Suppose a constant force is the only force applied to an object of unknown mass. what quantities do we need to know in order to find the object's change in momentum? check all that apply. check all that apply. we need to know the change in the position of the object. we need to know the magnitude of the force. we need to know the time interval during which the force acts. we need to know the change in the velocity of the object. impossible: you cannot find the object's change in momentum without knowing its mass.
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Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?
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Suppose a constant force is the only force applied to an object of unknown mass. what quantities do...
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