2.The surface of an ear drum(assumed circular)has a radius 2.1 mm.it resonates with amplitude of 0.8×10-7 m as a result of impulses received from an external body vibrating at 240 Hz.if the resulting pressure change on the ear drum is 3.6 10-5 Nm-2,calculate the
a) period of oscillation
b) velocity
c) acceleration
d) force
(take π=3.14)?
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Asked by Mary G on 27th May, 2020
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