A harmonic wave travels in the positive x direction at 11 m/s along a taught strong. A fixed point on the string oscillates as a function of time according to the equation y=0.024 cos(3t) where y is the displacement in meters and the time t is in seconds.
What is the frequency of the wave in hertz? Frequency =

Sublimation- which change of state is shown in model

When calculating percentage we need two numbers. one number represents total amount of certain thing and another number represents partial number of that thing. then we divide those two numbers.in this problem total amount represents total number of weeds growing on some surface. partial number represents chicory.percentage = partial / total * 100%percentage = 29 / 98 * 100%percentage = 29.6%our calculation is closest to answer b) so this is our correct answer.

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