Draw a diagram showing the following waves in the frequency domain: a) amp=5, frequency=200 hz, b) amp =2, frequency=250 hz, c) amp=4, f= 300 hz

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In radiometric dating, scientists compare the proportion of a radioactive parent isotope to a stable _____________ isotope. a. son b. daughter c. mother d. sister

Please help with this question its a take home test which i really dont understand would mean alot if i got it. http://www.ed.g ov.nl.ca/edu/k1 2/curriculum/do cuments/mathema tics/math3206/c h4/4-2b.pdf