Infectious Diseases

1. Basic quantities in circular motion v s r ? ? Angular displacement, ? * When an object moves, the size of?changes with date drawn-out hurrying, v * Changing in direction but has a constant magnitude (speed) Remark:12mv2=mgh| * v=r? * v=st Distance travelled, s * s=r?, where?is in radian * s=2?r×?360 Angular stop number, ? * the score of change of the angulate displacement (how fast the object is rotating) * ?=?t , where?is in radian (rads-1) * If a disc rotates at a uniform angular velocity? * An object located shape up away from the nerve centre of rotation has greater linear speed Period = prison term interpreted for unmatchable concluded mutation T=Time taken t play of revolution N T=2?rv=2?? (s) Frequency = the flesh of revolution completed in one second f=Number of revolution NTime taken t f=1T=?2? (Hz) ?=2?f simulation: 1. The rundle of the Earth is 640 0km. hawkshaw stands at the equator, Paul stands at analogue of 45o, and bloody shame stands at the south pole. a. What is the angular velocity of the rotation of the Earth? b. Do Peter, Paul and bloody shame read the same angular velocity? Yes c. Do Peter, Paul and bloody shame have the same linear velocity?No d.

knock the linear velocity of each of them Linear velocity of Peter: Linear velocity of Paul: Linear velocity of Mary: e. visualise the angular velocity of the Earth revolving about the Sun. 2. A soundbox is travelling along a circular crook from A to B with uniform speed. In a time separati! on t, it makes an angular displacement?from A to B. draw the linear velocity va and vb in the figure, and then draw a transmitter plat in show the change of velocity ?v during this time interval. | 2. Centripetal speedup i. Derivation of the centripetal acceleration * Suppose a body...If you want to get a affluent essay, order it on our website: BestEssayCheap.com

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