How long does it takes to make 8 revolutions? Show all work from physics

8) A stone moves in a circle of radius 60.0 cm and has a centripetal acceleration of 90. How long does it take to make 8 revolutions?

A windmill is turning at 80 rpm.

A) What is the angular speed in radians/sec?

B) How long does it take for the windmill to make 1 revolution?

A wheel starts from rest and has an angular acceleration that is given by . What is the time it takes to make 10 revolutions?

The synchrotron at the Fermi Laboratory has a diameter of5.0 km.Protons circling in it move atapproximately the speed of light.

(a) How long does it take a proton to completeonerevolution?


1 s

(b) The protons enter the ring at an energy of 8.0 GeV. Theygain2.2 MeV each revolution. How manyrevolutions must they travelbefore they reach 400 GeV ofenergy?


2 revolutions

(c) How long does it take the protons to be accelerated to400GeV?


3 s

(d) How far do the protons travel during this acceleration?


4 km



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