A physics postgraduate student is experimenting with a new nanomaterial that behaves a lot like a spring. The student (mass = 70.0kg; Δm=0.1kg) attaches the new material, wound up as an elastic rope (k=270N/m; Δk=1 ), to the ceiling of the atrium in the Physics Department and the other side is tied around his legs. The student is pulled down to a point where the cord is 5.000 m (ΔL=0.001m) longer than its unstretched length, then released. Where is the student 2.0 s later and what is the uncertainty in this position? What is the student’s velocity 2s later – no uncertainty required here. Hint: assume no uncertainty on g
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Physics, 23.06.2019 07:00, JaquoiaDean9823
Auniform brick of length 25 m is placed overthe edge of a horizontal surface with a maximum overhang of 12.5 m attained withouttipping. now two identical uniform bricks of length25 m are stacked over the edge of a horizontalsurface. what maximum overhang is possible forthe two bricks (without tipping)? answer in units of m.
Answers: 2
A physics postgraduate student is experimenting with a new nanomaterial that behaves a lot like a sp...
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