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2 years ago

Which are examples of a medium? water and air amplitude and wavelength crests and troughs compressions and rarefactions

Physics

2 answers:

umka21 [38]2 years ago

6 0

Answer:

water and air

Explanation:

A wave is a transmission of a disturbance from one point or the source to another point.
Transmission of a wave occurs through a material medium or a vacuum. Therefore a medium is the material through which a wave travels through.
The medium may be in gaseous form, slid form or liquid form. Therefore water and air are example of medium of transmission of a wave.

iren2701 [21]2 years ago

6 0

Answer:

water and air.

Explanation:

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The time of flight of the ball is 1.06 seconds.

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$\Delta x=v_x\times t+\frac{1}{2}\times a_x\times t^2\\ \Delta x=v_x\times t+\frac{1}{2}\times 0\times t^2\\\Delta x=v_xt$

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$\Delta y=v_y\times t+\frac{1}{2}\times a_y\times t^2\\ 1.5=v_0sin(45)\times \frac{7}{v_0cos(45)}+\frac{1}{2}\times (-9.81)\times(\frac{7}{v_0cos(45)} )^2\\\\1.5=7-\frac{481}{(v_0)^2}\\ \\\frac{481}{(v_0)^2}=5.5\\\\(v_0)^2=\frac{481}{5.5}\\ \\(v_0)^2=87.45\\\\v_0=\sqrt{87.45}=9.35\ m/s$ .

Plugging this value in

$t=\frac{7}{v_0cos(45)}\\ \\t=\frac{7}{9.35\times 0.707}\\ \\t=\frac{7}{6.611}$

$t=1.06\ seconds$

So, the time of flight of the ball is 1.06 seconds.

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