Thursday, June 30, 2011

Example 3 Register number 3 and 20

Example 3a
The speed of the wave pulse is 90/1.69cm/s which is 53.3cm/s to 3 significant figures.The speed in metres per seconds would be 0.533m/s to the nearest 3 significant figures.

Example 3b

When the tension is high,the pulse takes a significantly shorter time to travel the length than when the tension is low.Therefore,it is possible to change the speed of the wave pulse by adjusting its tension.

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