A stationary siren emits a sound of frequency 1000 hz and wavelength 0. 343 m. An observer who is moving toward the siren will measure a frequency f and wavelength λ for this sound such that.

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Answer 1
Ummmmmmm I’m not sure just quizlet it. Trust me it helps me A lot

Related Questions

A car travels the distance between logan airport and the town of framingham in 20 min. The logan express bus travels this distance in 30 min. After how long do the car and bus meet if they leave at the same time, and one travels from framingham to the airport while the other travels from the airport to framingham?.

Answers

The time the car and bus will meet if they leave at the same time, and one travels from Framingham to the airport while the other travels from the airport to Framingham is 12 minutes.

let

the distance between Logan airport and the town of Framingham = a

Car speed:

speed = distance / time

speed = a / 20

Logan express bus speed

speed = distance / time

speed = a / 30

let

the distance travelled by the car by the time they met = b

Then

the distance travelled by the bus the time they met = a - b

Therefore,

The time they met will be as follows:

speed  = distance / time

time = distance / speed

b / a / 20 = a - b / a / 30

20b / a = 30(a - b) / a

cross multiply

20ab = 30(a - b)a

20ab = 30a²- 30ab

50ab = 30a²

5b = 3a

b = 3 / 5 a

Therefore,

b / a / 20  =  3 / 5 a / a / 20  = 3 / 5 a × 20 / a = 60a / 5a = 12 minutes

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Answer:

12 minutes

Explanation:

Since it's wednesday, buy for less gives a 5% discount for purchases. The items in rhonda's cart total $53. 75. She needs to know the cost of the items with the discount. So, she multiplies 5% times $53. 75 and subtracts the amount from $53. 75. Which expression would give rhonda the same result in one step?.

Answers

.95(53.75)

i think that's it :)

Consider this equation. 7. 8 2(0. 75m 0. 4) = -6. 4m 4(0. 5m - 0. 8) Mia solved the equation and determined that m = 2. Is she correct? She is incorrect because when substituting 2 for m the result was a true statement. She is incorrect because when substituting 2 for m the result was a false statement. She is correct because when substituting 2 for m the result was a true statement. She is correct because when substituting 2 for m the result was a false statement.

Answers

Answer:

675

Explanation:

Turkey sandwiches cost $2. 50 and veggie wraps cost $3. 50 at a snack stand. Ben has sold no more than $30 worth of turkey sandwiches and veggie wraps in the first hour of business. Let x represent the number of turkey sandwiches and y represent the number of veggie wraps. The inequality 2. 50x+3. 50y30 represents the food sales in the first hour. If ben has sold 4 veggie wraps, what is the maximum number of turkey sandwiches ben could have sold? 5 6 7 10.

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Answer:

6

Explanation:

The base of a pyramid has n sides.

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N + 1 verticals, n + 1 faces and 2n edges

4. 3 code practice: question 1.

Answers

what is the question tho

There are 10 red marbles and 8 green marbles in a jar.

Answers

Answer: what's your question, Luis?

Explanation:

Answer:

feeling bad cuz they can't even reask the question since they've got 3 points you're in my prayers luis

Why might you choose to filter a list or table instead of simply sorting it?.

Answers

I would choose a coordinate table. And list them as (x,y)

The man in the well passage how do the children respond to the mans initial cry for help

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Answer:

by making their way to Arthur's place.

Procter & gamble offers tide detergents, charmin bathroom tissue, crest toothpaste products, and pampers diapers, as well as a host of other household brands. These products all represent a.

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Procter & gamble offers tide detergents, charmin bathroom tissue, crest toothpaste products, and pampers diapers, as well as a host of other household brands. Thus, these products all represent a: Product mix.

A product refers to any physical object or material that typically satisfy and meets the demands, needs or wants of customers.

Hence, a product comprises the finished goods that gives satisfaction to a customer's needs and wants.  

A product mix is also referred to as product portfolio or product assortment and it can be defined as a complete set of products that are being offered by a business firm, for sale to consumers.

Some examples of the products in a product mix are:

Tide detergents.Charmin bathroom tissue.Crest toothpaste products.Pampers diapers.

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1 mile 5280 feet
61 centimeters == 2 feet
Based on the information above, how many
centimeters are equivalent to 3 miles?
A) 161,040
B) 322,080
C) 183,120
D) 644,160

Answers

Answer:

B) 322,080

Explanation:

322,080÷61=5280

Would you recommend living in a city or living in the desert?.

Answers

Answer: city because living in the desert might be hard to find food and you would overheat eventually.

Explanation: Hope this helps :)

6-8x=7x-9x=36 i dont know the steps to solve

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Answer:

sorry but i think this is mistake

Answer:sorry

Explanation:

The best way to safeguard your document is to save it.

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okay thank you for this info

In the figure below, what is the value of a +b?

Answers

Answer:

105

Explanation:

I got it right on the test.

Carmen buys 153 shares of Cawh Consolidated Banks, each of which pays a constant yearly dividend of $7. 14. After six years, how much has Carmen received in dividends? a. $5,783. 40 b. $1,820. 70 c. $1,092. 42 d. $6,554. 52.

Answers

Answer:

The answer is D

Explanation:

Which timeline shows the correct order of contributions made to the discovery of dna?.

Answers

Answer:

DNA was discovered in 1800, and then scientists studied DNA with X-Rays. After a while, scientists published a 3D model of DNA, and shortly after, scientists decoded DNA genes.

Answer:

B

Credit:

I got this answer from the other guy, just posting this answer for those who don't want to read

Read each detail from the assignment text. Then, identify whether the detail indicates that the author’s purpose is to inform, to entertain, or to persuade. "Many Hispanics spoke only Spanish, and most whites spoke only English. " "He knew he had the courage to blast through tacklers and the toughness to work all day in the beet fields, but this seemed harder. " "There were only two days before the next game. ".

Answers

Answer: m

Explanation: m

The first detail "Many Hispanics spoke only Spanish, and most whites spoke only English" indicates that the author's intention is to inform, as it provides factual information about language usage in a specific context.

Who is author?

The term "author" usually refers to the person who wrote a book, an article, or another piece of writing. It can also be used to describe the creator of other types of works, such as music, art, or film.

The first detail "Many Hispanics spoke only Spanish, and most whites spoke only English" indicates that the author's intention is to inform, as it provides factual information about language usage in a specific context.

The second detail "He knew he had the courage to blast through tacklers and the toughness to work all day in the beetroot fields, but this seemed harder" indicates that the author's intention is to entertain, as it uses descriptive language to create a sense of drama and tension.

The third detail, "There were only two days until the next game," indicates that the author's intention is to inform, as it provides factual information relevant to a specific context.

Thus, these are the details that indicates that the author’s purpose is to inform, to entertain, or to persuade.

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#SPJ7

Solve the equation. –3x 9 = –3(2x 3) 3(x – 4) 1 How many solutions does this equation have? one solution two solutions infinitely many solutions no solution.

Answers

Answer:

no solution

Explanation:

just took then assignment

Answer:

no soultion

Explanation:

Which of the following is a result of gravity in relation to moving tectonic plates.

Answers

Answer:

Hello!!

Which of the following is a result of gravity in relation to moving tectonic plates?

A result of gravity in relation to moving tectonic plates is ridge push and slab pool.

Hope this helps!!

Ridge push and slab pool

Ordinary table salt is composed of.

Answers

Salt is composed of sodium chloride (NaCl)

We flowers in the school garden when it started to rain.

Answers

This is the complete sentence:

We were planting flowers in the school garden when it started to rain.

I was able to find the complete exercise with its options to choose from online, which are:

were planting plant are planting have planted

"Were planting" is the only one that is gramatically correct to complete the sentence given, because the sentence says that we were doing something when something else happened, so you need to start with the past continuons.

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When a cross is made and a trait disappears in the f1 generation, only to reappear in the f2, the trait is probably.

Answers

the trait is recessive

The final scores of students in mathematics are distributed normally with a mean of 72 and a standard deviation of 10. What is the probability that a student’s score will be between 65 and 78?.

Answers

Answer:

0.8041

Explanation:

0.8041

We know that  

μ=72  and  σ=5

and P(65<X<78)

We can determine the Z value as (X-μ)/σ

P( 65<X<78 )=P( 65-72< X-μ<78-72)

P((65-72)/5 < Z < (78-72)/5)P((65−72)/5<Z<(78−72)/5)

P(65 < X < 78 )=P(-1.4 < Z < 1.2)P(65<X<78)=P(−1.4<Z<1.2)

To fine the Z values:

P (-1.4 < Z < 1.2 )=P ( Z < 1.2 )-P (Z < -1.4 )P(−1.4<Z<1.2)=P(Z<1.2)−P(Z<−1.4)

From the standard normal tables:

P (Z < 1.2 )=0.8849P(Z<1.2)=0.8849

to find P ( Z<-1.4)

P ( Z < -a)=1-P ( Z < a )P(Z<−a)=1−P(Z<a)

From the standard normal tables:

P ( Z < -1.4)=1-P ( Z < 1.4 )=1-0.9192=0.0808P(Z<−1.4)=1−P(Z<1.4)=1−0.9192=0.0808

Therefore

P(-1.4 < Z < 1.2 )=0.8041P(−1.4<Z<1.2)=0.8041

P (65 < X < 78)=0.8041P(65<X<78)=0.8041

A food worker at a catered event finds grilled shrimp.

Answers

Answer:

Cool

Explanation:

Did you experience spending more time to make a decision that greatly affects you or your future just like anton? share your experience.

Answers

Answer:

yes

Explanation:

this Anton is unknown but I could remember missing my peers at an event at the stadium

If (93 × p) + 84 = 8593 times p plus 84 equals 85, then p equals:.

Answers

The solutions of  (93 × p) + 84 = 8593 times p plus 84 equals 85 yields  p =  84/8500 or 1/8593.

We can write the equation as follows;

(93 × p) + 84 = (8593  × p) + 84 = 85

We can solve the equation in parts as follows;

(93 × p) + 84 = (8593  × p) + 84

93p + 84 = 8593p

93p - 8593p = -84

-8500p = -84

p = 84/8500

Also;

(8593  × p) + 84 = 85

8593p + 84 = 85

p = 85 - 84/8593

p = 1/8593

Hence p = 84/8500 or 1/8593

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Mike traveled for 4 hours at a rate of 55 mph. How far did he travel?.

Answers

Answer:

pretty sure 220

Explanation:

distance = (4 hr)(55 mi/hr) = 220 miles

An object moves along a straight line so that at any time t, 0≤t≤9, its position is given by x(t)=7+6t−t2. For what value of t is the object at rest?.

Answers

We will see that for t = 3 seconds the object will be at rest.

When does an object is at rest?

We say that something is at rest if its velocity is equal to zero.

Here we know that the position equation of the object is:

x(t) = 7 + 6*t - t^2

To get the velocity, we need to differentiate with respect to the time, using the rule:

[tex]f(x) = a*x^n\\\\f'(x) = n*a*x^{n-1}[/tex]

We will get:

v(t) = 6 - 2*t

Now we just need to find the value of t such that the above equation is equal to zero:

0 = 6 - 2*t

2*t = 6

t = 6/2 = 3

Then for t = 3 seconds, the object will be at rest.

If you want to learn more about motion equations, you can read:

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Answer:3

t=

Explanation:

An object being at rest indicates the velocity is 0. Set the derivative of the equation equal to zero. (0=6-2t) Subtract 6 from both sides (-6=-2t) and then divide by negative 2 to get t=3, meaning the object is at rest at

Paris drawing.

I made it

Answers

Answer: can you mark me as brainliest please

cool????...

Explanation:

amazinggggggggggggggggggggggggggggggggggggggggggggExplanation:

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