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RideAnS [48]
3 years ago
13

5. How long would it take sound waves traveling through air that is 68°F to travel 2,058 meters? Use an equation to solve the pr

oblem.
Mathematics
1 answer:
svp [43]3 years ago
4 0

Answer:

6 seconds

Step-by-step explanation:

Temperature of air = 68^{\circ}\text{F}

Converting to Celsius

T=(68-32)\dfrac{5}{9}=20^{\circ}\text{C}

Speed of sound in air is given by

v=331.3\sqrt{1+\dfrac{T}{273.15}}\\\Rightarrow v=331.3\sqrt{1+\dfrac{20}{273.15}}\\\Rightarrow v=343.21\ \text{m/s}

d = Distance to travel = 2058 m

Time is given by

t=\dfrac{d}{v}\\\Rightarrow t=\dfrac{2058}{343.21}\\\Rightarrow T=5.99\approx 6\ \text{s}

Time taken to travel 2058 m is 6 seconds.

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Nostrana [21]
Given:
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original interest rate: 3.4%
new interest rate: 6.8%
term: 10 years.

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6 0
3 years ago
Without solving the equation -3x+5 =44 tell whether the value of x is negative or positive
marshall27 [118]

Answer:

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Step-by-step explanation:

3 0
3 years ago
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Lorico [155]

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3 years ago
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KatRina [158]

Answer:

Only option D is one of the transformations needed.

Step-by-step explanation:

The graph of f(x)=x^2 is a positive parabola with x=0 as the zero in ordinates and also 0 as a zero x. This is, the graph passes in (0,0) and this is the only point it crosses both axis, then for every x value we will gave a positive f(x).

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So, from the options you proposed we chose only d, to which we MUST add the transformations noted above.

Sorry for the mistake!

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36km hr

Step-by-step explanation:

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2 years ago
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