A hollow sphere has a 4.4 m long string wrapped around it. The free-end of the string is held and the hollow sphere is released thus unwinding the string as it falls. Determine how fast the hollow sphere will be going at the moment the string is completely unwound assuming no thermal energy is generated.
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Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion
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Physics, 22.06.2019 16:30
In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?
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A hollow sphere has a 4.4 m long string wrapped around it. The free-end of the string is held and th...
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