3 years ago

Describe how you would plot it on the graph 0,2 and -1,-1

1 answer:

8 0

For 0,2 you would start at the 0 and go up to 2 on the y-axis and that would be 0,2. for -1,-1 you would find -1 on the x-axis and then move one down on the y-axis and plot your point for -1,-1.

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ludmilkaskok [199]

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2 years ago

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Karen claps her hand and hears the echo from a distant wall 0.113 s later. How far away is the wall? The speed of sound in air i

insens350 [35]

Answer:

19.3795 m

Step-by-step explanation:

If sound travels at 343 m/s and it took Karen 0.113 s to hear the echo from the wall, the distance travelled by the sound is:

$D=343\frac{m}{s} *0.113\ s\\D= 38.759\ m$

Note that the distance calculated above is the distance travelled from Karen to the wall and then back from the wall to Karen. Therefore, the distance between Karen and the wall is:

$d=\frac{38.759}{2}\\d=19.3795\ m$