1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.

You might be interested in
Write whether each number is an expression or an equation 9+b​
laiz [17]

Answer:

9 + b is an expression

Step-by-step explanation:

Expressions don't have the = sign in them but equations do.

4 0
2 years ago
Is y=2x-8 and 2x-y=8 a dependent independent or inconsistent
kolbaska11 [484]
Note that 2x-y=8 can be solved for y:  y=2x-8.  This is identical to the first equation.  The graph of one is exactly the same as the graph of the other.  Thus, the two equations are dependent.
4 0
3 years ago
Read 2 more answers
PLZ HELP ASAP!!!!! <img src="https://tex.z-dn.net/?f=" id="TexFormula1" title="" alt="" align="absmiddle" class="latex-formula">
AveGali [126]

The simplified expression of  $4 x \cdot \frac{1}{x^{-5}} \cdot x^{-3} is 4x^3.

Solution:

Given expression is 4 x \cdot \frac{1}{x^{-5}} \cdot x^{-3}.

To simplify the given expression.

$\Rightarrow4 x \cdot \frac{1}{x^{-5}} \cdot x^{-3}

Using exponent rule: \frac{1}{a^{-m}}=a^m

$\Rightarrow4x \cdot x^{5}.x^{-3}

Using another exponent rule: a^m \cdot a^n=a^{m+n}

$\Rightarrow4x \cdot x^{5-3}

$\Rightarrow4x \cdot x^{2}

Using exponent rule: a^m \cdot a^n=a^{m+n}

$\Rightarrow4x^{1+2}

$\Rightarrow4x^3

Hence the simplified expression of  $4 x \cdot \frac{1}{x^{-5}} \cdot x^{-3} is 4x^3.

8 0
3 years ago
Please help solve much appreciated
DIA [1.3K]

Step-by-step explanation:

For the Cuboid, the formula will be:

Width x Height x Length

For the cylinder the volume formula will be:

\pi \:  \times  \:  {radius}^{2}  \times  \: length

7 0
3 years ago
Please help it's urgent.
arlik [135]

Answer:

It is the second triangle.

Step-by-step explanation:

This is because the area of the square is given as 25^2 as the perpendicular, 144^2 as the base, and the hypotenuse is 169^2.

Length of the perpendicular = 5^2 (Because 25^2 / 5^2)

Length of the base = 12^2

Length of the hypotenuse = 13^2

So, the Pythagoras theorem is,

=> H^{2} = P^{2} + B^{2}

=> 13^{2} =12^{2} +5^{2}

This is true, because, 13*13 = 12*12 + 5*5

=> 169 = 144 + 25

=> 169 = 169

If my answer helped, kindly mark me as the brainliest!!

Thanks!!

3 0
3 years ago
Other questions:
  • Which table has a constant of proportionality between Y and X of 3/4
    5·2 answers
  • PLEASE HELP WILL GIVE BRAINLIEST PLEASE PLEASE PLEASE ASAP!!
    15·2 answers
  • A reflection about the y axis is determined by what?
    12·1 answer
  • At southern states university ssu there are 719 students taking finite mathematics or statistics. 328 are taking finite mathemat
    6·2 answers
  • Simplify by combining like terms: <br>-7x - 2 - 9y + 10x ​
    12·1 answer
  • Please answer this question if you know one question answer also pless teel
    11·1 answer
  • Does the table below show a linear function? Explain.
    11·1 answer
  • Mary Beth wants to save $175 for a trip to an amusement park. She sets aside $14 of her allowance at the end of each week. How m
    5·1 answer
  • If 8x = 24, then 24= 8x what property is this
    10·1 answer
  • HELLPPPPPPPPPPPPPPPPPPP
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!