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a 1.5 kg box moves back and forth on a horizontal frictionless surface between two different springs. The box is initially pressed against the stronger spring, compressing it 4.0cm and then is released from rest.
a) by how much will the box compress the weaker spring?
b) what is the maximum spring the box will reach?
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A proton has a kinetic energy of 8.5 MeV. If its momentum is measured with an uncertainty of 4.0%, what is the minimum uncertainty in its position
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