The frequency (f) of the note produced by striking a pipe of length (L) and radius (r) is given by f = 2r + c over 2L where c is the speed of sound, which is mately 13,500 in./sec. The following table shows some frequencies and related pipe lengths for PVC pipe with a radius of 1 in. What length pipe should be used in order to create the lowest note on an 88-key piano (an A), which has a frequency of 27.5 hertz?​

The Frequency (f) Of The Note Produced By Striking A Pipe Of Length (L) And Radius (r) Is Given By F

Answers

Answer 1

Now the aim of the above discussion is to internalize the mathematical relationships for open-end air columns in order to perform calculations predicting the length of air column required to produce a given natural frequency. And conversely, calculations can be performed to predict the natural frequencies produced by a known length of air column. Each of these calculations requires knowledge of the speed of a wave in air (which is approximately 340 m/s at room temperatures). The graphic below depicts the relationships between the key variables in such calculations. These relationships will be used to assist in the solution to problems involving standing waves in musical instruments.


Related Questions

In Seattle, WA, it is said to rain 66% of the time. Since there are 365 days in a year, approximately how many days is it expected To rain? ​

Answers

365days is 100%
xdays is 66%

66x365 =24090
24090/100= 240,9
it’s expected to rain approximately 241 days

In a year with 365 days, it should rain for about 240 of those days for the given condition.

What is the percentage?

It is the ratio of two integers expressed as a decimal fraction of a whole number. It is a statistic for contrasting two sets of data, and the % sign is used to describe it as a percentage. Percentages are often and creatively used. For instance, a lot of data is published as percentages in the media, including bank interest rates, retail discounts, and inflation rates.

It is supposed to rain 66% of the time in Seattle, Washington. Considering that there are 365 days in a year,

Suppose the number of days is it expected to rain obtained be x,

x=66% of 365

x=66/100 × 365

x=240,9 ≈ 240

Thus, it should rain for about 240 days.

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Can someone rewrite the expression x^2 * x^-12 in the form of x^n. Pleasee

Answers

Answer:

x^ -10 or 1/x^10

Step-by-step explanation:

MATCH THE EXPRESSIONS WITH THE VARIABLES IN IT! HELP I APPRECIATE IT

Answers

x:

[tex]3x^{2} +x+9[/tex]

y:

[tex]4y+7[/tex]

[tex]6y^{2} +y+3[/tex]

x and y:

[tex]2x-3y^{3} -4[/tex]

[tex]5x+3y+6[/tex]

Solve inequalities 5x>2x+6

Answers

Answer:

x>2

Step-by-step explanation:

5x>2x+6 Subtract 2x from 5x

3x>6 Divide 3 by 6

x>2

Answer:

B. April

Step-by-step explanation:

What is the slope of the line that passes through the points (-2,8) and (-22,8)? Write your answer in simplest from

Answers

Can you help me with my homework I need help grades are finalized tomorrow I posted the pictures on my Paige

if there are 91 seats in 7 rows how many seats are in 4 rows

Answers

Answer:

It would be 52

Step-by-step explanation:

You divide 91 by 7 and u get 13 so u multiply that by 4 and u get your answer

I believe the answer is 52

Solve the equation for the specified variable

S=gr-5gk*3, for g

Answers

Answer:

[tex]g = \sqrt{\frac{S}{3kr^{-5}}}[/tex]

Step-by-step explanation:

Given

[tex]S=gr^{-5}gk*3[/tex]

Required

Solve for g

[tex]S=gr^{-5}gk*3[/tex]

Split into different entities

[tex]S=g * r^{-5}*g*k*3[/tex]

Reorder in terms of like terms

[tex]S=g*g * r^{-5}*k*3[/tex]

[tex]S=g^2 * r^{-5}*k*3[/tex]

[tex]S=g^2 * 3kr^{-5}[/tex]

Solve for [tex]g^2[/tex]

[tex]g^2 = \frac{S}{3kr^{-5}}[/tex]

Take square root of both sides

[tex]g = \sqrt{\frac{S}{3kr^{-5}}}[/tex]

In a triangle, the sum of the measures of the first two angles is 12 less than the measure of the third angle. In addition, the measure of the first angle is twice as big as the measure of the second angle. Create and solve a system of linear equations to represent this situation. Then select the true statement.

А. The solution to this system is nonviable because it results in a negative angle measure.
B. The solution to this system is nonviable because it results in too large of an angle measure.
C. The solution to this system is viable.
D. The solution to this system is nonviable because it results in fractical values for the angle measures.

Answers

the sum of the internal angles of a triangle are equal to 180 degrees.

once i remembered that the problem became a lot easier.

let a, b, and c be the angles of the triangle.

-----

let a = 2*b

-----

let c = a+b-12

-----

the above two statements are given.

since the sum of the internal angles of a triangle are equal to 180, then we have a third equation to work with which is

-----

a + b + c = 180

-----

we now have 3 equations for 3 unknowns and we should be able to solve for each of the unknowns.

-----

it looks like the easiest thing is to solve for b. once we find b, the rest should fall into place very nicely.

-----

since a = 2*b, we can substitute 2*b for a in the equation a + b + c = 180.

that equation then becomes 2*b + b + c = 180 which becomes 3*b + c = 180.

looking at the equation c = a + b - 12, we solve for b as follows:

since we know that a = 2 * b, we can substitute 2*b for a and the equation becomes c = 2*b + b - 12 which becomes c = 3*b - 12.

-----

the equation we are working with is 3*b + c = 180 which originally started as a + b + c = 180.

we can substitute 3*b - 12 for c and the equation becomes

3*b + 3*b - 12 = 180 which becomes 6*b = 192 after adding 12 to both sides and combining like terms.

dividing both sides of the equation by 6 and we get b = 32 degrees.

-----

we have b = 32 degrees.

we have a = 2 * b so a = 64 degrees.

we have c = a + b - 12 which becomes c = 32 + 64 - 12 which becomes c = 96 - 12 which becomes c = 84 degrees.

-----

substituting in the equation a + b + c = 180, we get 32 + 64 + 84 = 180 which becomes 96 + 84 = 180 which becomes 180 = 180.

-----

answer is:

a

PLEASE HELP!! BEST ANSWER WILL BE MARKED BRAINIEST! The stadium is at (-2,3) and the high schools (1,8). What is the shortest driving distance (in blocks) between these two locations? Can you figure this out without looking a the grid

Answers

Answer:

Shortest distance is 5 blocks.

Answer:

5.8

Step-by-step explanation:

I'm not 100% on this as the decimal in the answer makes me doubt myself. Here's the explanation anyways

Can you please help

Solve: x/2 = 7

Answers are:
x=5
X=7
X=9
X=14

Answers

Answer:

X = 14

14/2=7

Answer:

x=7

Step-by-step explanation:

you multiply a 2 to one already there and it eliminates the 2 entirely and then you get x=7

What is the range?
8,10, 60, 3, 5, 13, 12, 40, 8

Answers

answer: the range is 57
explanation: to find the range you subtract the smallest value from the largest value in the set

Solve the equation 1/4 (x+2)+5=-x

Answers

Answer:

Exact Form:

x=−225

Decimal Form:

x=−4.4

Mixed Number Form:

x=−4 2/5

Step-by-step explanation:

Answer:

x = 6

Step-by-step explanation:

1/4 (x-2) + 5 = x

1/4 (x-2) = x - 5

x - 2 = 4(x-5)

x-2 = 4*x + 4*-5

x-2 = 4x - 20

x - 4x = 2 - 20

-3x = -18

x = -18/-3

x = 6

Check:

1/4(6-2) + 5 = 6

1/4(4) + 5 = 6

1 + 5 = 6

what value of x the given expression is undefined x+4/x-4​

Answers

Answer:

At x= 4 the given expression is undefined.

Step-by-step explanation:

In a given function , if the denominator becomes zero then the function is undefined.

Here, denominator is x-4 so at x = 4 it will become zero. So we can say that at x=4 , the function is undefined

Anders has a total of 7 yards of ribbon. He cuts the ribbon into 4 pieces of equal length. What is the length, in yards, of each piece of
ribbon?
NY

Answers

The length of each piece is 1.75 yards

Savannah's balance in her checking account was –$638.57. She deposited two checks, each in the amount of $298.40. What is Savannah’s new checking account balance after the deposits?

Answers

Answer:

$-41.77

Step-by-step explanation:

$298.40 multiplied by 2 is $596.8, since Savannah added 2 deposits.

Now we add that to the current balance, -$638.57, to get an answer of $-41.77

Answer:

-41.77

Step-by-step explanation:

Multiply $298.40 by 2 OR add $298.40 + $298.40

either gives you $596.80

Savannah deposited $596.80

You add that to -$638.57

In a certain field, the ratio of pigs to sheep is 8 3 . If there are 165 pigs and sheep altogether in a field, how many sheep are there?

Answers

Answer:

440 I think haven't done these questions in a while.

How do
You Write 67 in expanded form

Answers

Answer:

sixty seven

Step-by-step explanation: i think

Answer:

60+7

Step-by-step explanation:

MATH please heeeeeeeeeeeeeelp​

Answers

Answer:

0, they all equal 0

Basic Math - the property of 0:

The multiplication property of zero says that zero times any number is equal to zero.

Step-by-step explanation:

Solution:

6(1/6)-2+1+12x0   =   anything times 0 = 0

6(1/6)-2+1+0   =   0

6(1/6)-2+1   =   0

1-2+1   =   0

-1+1   =   0

=0

Mickey used these calculations to find how much he would spend on 7 cartons of eggs, if 12 cartons of eggs cost $22.20. Describe his error.


12 cartons(÷22.20)
$22.22(÷22.20)


Unit price = $0.54
$0.54(7) = $3.78
Answer ; Mickey set up the equivalent rate wrong. The cartons of eggs should be in the denominator, because you need to find the unit price for 1 carton of eggs.

Answers

Answer: you would divide the total price of $22.20 by the amount of cartons, which is 12, giving you the unit rate of $1.85 per carton. the unit rate, $1.85 multiplied by 7 is $12.95, so it would cost $12.95 for 7 cartons of eggs

Step-by-step explanation:

Answer:

Step-by-step explanation:

the person up is right

a preschool student finds a big bag of cookies and begins to take the cookies from the bag and hide them in her cubbyhole. after hiding 3 cookies, she decides to keep count of how many cookies are actually in her cubbyhole. first there are 3 cookies. after pulling out more cookies, she then has 5 cookies, then 7 cookies, and then 9 cookies. however, she only knows how to count to 10! assuming she continues to pull cookies from the bag at the same rate indicated by the sequence of cookies above, how would the preschool student continue the pattern? describe the arithmetic sequence in this context.

Answers

Answer:She will count the cookies by 2's

Step-by-step explanation:

Is 6.60660666 a rational number?

Answers

Answer:

no

Step-by-step explanation:

12. At noon the temperature was 30 degrees Celsius. At night it becomes 25 degrees Celsius. How
many degrees warmer or colder did it get?*
(10

Answers

Answer:

5 degrees colder

Step-by-step explanation:

You take the starting point then subract the ending point and you get your answer. But in order to know if its colder or warmer is to know that the higher the number, the hotter, and the lower the number, the colder.

30-25
=5
so 5 is your answer

Solve the equation. 25=9x+4-6x

Answers

Step-by-step explanation:

[tex]25 = 9x + 4 - 6x[/tex]

[tex]25 - 4 = 9x - 6x \\ [/tex]

[tex]21 = 3x[/tex]

[tex] \frac{21}{3} = x[/tex]

[tex]7 = x[/tex]

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{x = 7}}}}}[/tex]

Step-by-step explanation:

[tex] \star{ \tt{ \: 25 = 9x + 4 - 6x}}[/tex]

[tex] \sf{Step \: 1 \: }[/tex] : Collect like terms

Like terms are those which have same base

[tex] \longmapsto{ \sf{25 = 3x + 4}}[/tex]

[tex] \tt{Step \: 2 \: }[/tex] : Swap the sides of the equation

[tex] \longmapsto{ \sf{3x + 4 = 25}}[/tex]

[tex] \tt{Step \: 3 \: }[/tex] : Move 4 to right hand side and change it's sign

[tex] \longmapsto{ \sf{3x = 25 - 4}}[/tex]

[tex] \tt{Step \: 4}[/tex] : Subtract 4 from 25

[tex] \longmapsto{ \sf{3x = 21}}[/tex]

[tex] \tt{Step \: 5}[/tex] : Divide both sides by 3

[tex] \longmapsto{ \sf{ \frac{3x}{3} = \frac{21}{3}}} [/tex]

[tex] \tt{Step \: 6}[/tex] : Calculate

[tex] \longmapsto{ \sf{x = 7}}[/tex]

The value of x is 7

Hope I helped!

Best regards! :D

~TheAnimeGirl


1. What percent of 29 is 3?

Answers

Answer:

0.34%

Step-by-step explanation:

1. Start by representing the percentage with the variable, x %. Using x%, create an algebraic expression.

    29% X x = 3

2. Solve for x by dividing both sides by 29.

   29x divided by 29 =3 divided by 29.

             x=0.1034

3.Convert 0.1034 into a percentage by multiplying the decimal by 100%

             X =0.1034 x 100%

                  x=10.34%

1) Identify the volume of a rectangular pyramid with length 16 m, width 12 m, and height 17 m. 2) Identify the volume of a regular hexagonal pyramid with base edge length 8 in. and height 10 in. rounded to the nearest tenth. PLEASE HELP

Answers

Answer:

First problem: 1088 [tex]m^{3}[/tex]

Second problem: 554.3 [tex]m^{3}[/tex]

Step-by-step explanation: Please see the images below!

The volumes of both the pyramids are 1088 m³ and 554.3 in³.

What is volume?

The volume of a shape or solid is the space occupied by it, which also includes its height or depth.

a) To find the volume of the pyramid, first calculate the area of the base.

B = lw

Substitute 16 for l and 12 for w.

B = 16 ⋅ 12

Simplify.

B = 192 m²

To find the volume of the pyramid, use the formula for the volume of a pyramid.

V = 1/3 Bh

Substitute 192 for B and 17 for h.

V = 1/3 ⋅ 192 ⋅ 17

Simplify.

V = 1088 m³

Therefore, the volume of the rectangular pyramid is 1088 m³.

b) Similarly for the volume of a regular hexagonal pyramid with base edge length 8 in. and height 10 in.

Base area = 96√3 in²

Volume = 1/3 × 96√3 in² × 10 in

= 554.3 in³

Hence, the volumes of both the pyramids are 1088 m³ and 554.3 in³.

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Translate the following algebraic expression into a written expression 3x ^ 2 + 2y + 1/2

Answers

Answer:

5

Step-by-step explanation:

Line q passes through points (9, 9) and (1, 2). Line r is perpendicular to q. What is the slope of line r?

Answers

Answer:

y=mx+b

Step-by-step explanation:

translate this phrase into algebraic expression 23 increased by twice gali’s score use variable g represent gali’s score

Answers

Hey there! I'm happy to help!

We have twice Gali's score, which is 2 multiplied by g, which we can write as 2g.

We increase 23 by 2g, which means, we add.

23+2g.

Have a wonderful day! :D

Answer:

23+2g

Step-by-step explanation:

Let g = gali's score

[tex]twice \:gali\: score = 2\times g\\\\= 2g[/tex]

To increase = +

[tex]23 +2g[/tex]


Last week, Benjamin spent $82.80 on groceries and $132.48 on bills. The amount he spent on groceries
was 15% of his paycheck. What percent of his paycheck did Benjamin spend on bills?

Answers

Answer:

amount spend on groceries = 82.80

percent spend in groceries = 15%

let total paycheck be x

15%of x= 82.80

x=552

percent spend on bills = 132.48/552 = 24%

Step-by-step explanation:

I need help on this assignment

Answers

Answer:

11. X'( 1 , 6 )

12. Y'( 5 , 1 )

13. Z'( 6 , 4 )

14. X"( -1 , -6 )

15. Y"( -5 , -1 )

16. Z"( -6 , -4 )

Only had time for the coordinates-!

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