The frequency of the wave is approximately 25/π Hertz
<h3>Wave function</h3>
The standard wave function is expressed according to the equation
y = Asin(2πft+2πx/λ)
where
λ is the wave length
Given the equation below
y=0.15 sin (0.80x - 50t)
Since 50 = 2πf
For the frequency
2πf = 50
f = 50/2π
f = 25/π Hertz
Hence the frequency of the wave is approximately 25/π Hertz
Learn more on speed of the wave here: brainly.com/question/25847009
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A. The aerialist’s feet and the rope
Answer: Objective Observations
Explanation: The first step in the Scientific Method is to make objective observations. These observations are based on specific events that have already happened and can be verified by others as true or false
x=gt^2/2=>t^2=2x/g=30/9.81=3.05=>t=sqrt(3.05)=1.8 s