physics

2)A wave is represented by the equation y =2sin.pi(0.5x - 200t) where all distance are measured in centimeters and time in seconds. For this wave, calculate the : (a) frequency (b) wave length (c) speed (d) amplitude

step plz

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  1. amplitude: 2
    now for speed, one needs to look at when the sin function goes 2PI , or .5x=2, x=4cm
    for period, the sine function goes 2PI when 200t=2 or t=.01sec
    f= 1/period=100hz

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    bobpursley
  2. I don't even no yet
    I really need formula and answers please

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  3. Please l want you to give me the formula and answers please.

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