True or False. The Electromagnetic Spectrum can be described in terms of wave energy, frequency, and wavelength.

Question 3 options:

True because energy, frequency, and wavelength are all properties of sound, and sound is an electromagnetic wave.

False because the electromagnetic spectrum is about radiation, not waves.

True because the electromagnetic spectrum is ordered based on wave energy, which is described on a wave as wavelength and frequency.

False because energy, wavelength, and frequency are only characteristics of mechanical waves.

Answers

Answer 1

True, because energy, frequency, and wavelength are all properties of sound, and sound is an electromagnetic wave. The electromagnetic spectrum encompasses a continuous range of frequencies or wavelengths of electromagnetic radiation, ranging from long wavelength, low energy radio waves to short wavelength, high frequency, high energy gamma rays.

Related Questions

The first person who answers correctly gets thanks and braniy!

1. The figures shown are similar. What is the scale factor? [Image one]

2. The figures shown are similar. What is the scale factor? [Image 2]

Answers

That arrow helps a lot.
One
Scale factor = 21/14 = (3*7)/(2*7) = 3/2 the sevens cancel out.

Two
Scale factor = 24/18 = (6 *4) / (6 * 3) The 6s cancel out
Scale factor = 4/3

An economy package of cups has 200 green cups. If the green cups are 10% of the total package, how many cups are in the package?

Answers

Final answer:

Set up a proportion where 10% of the total number of cups equals 200 green cups, then calculate to find that there are 2000 cups in the entire package.

Explanation:

To find the total number of cups in the package when 200 green cups represent 10% of the total, we can set up a simple proportion. Here, 10% corresponds to the number of green cups we know about. We need to find 100% to discover the total number of cups in the package.

The proportion we'll set up is:

10% / 200 cups = 100% / x cups

To solve for x (the total number of cups), we will divide 200 cups by 10% to find the value of 1% and then multiply by 100%:

1% of total = 200 cups / 10

x (total cups) = (200 cups / 10) × 100

Perform the calculation:

x = 20 cups × 100

x = 2000 cups

So, there are 2000 cups in the total package.

Explain the advantage of creating a linear function from a set of data; why bother to do this?

Answers

If the data you list has a linear relationship, then creating a linear function from the data might be helpful because it would define the relationship and help you to answer questions related to it that the data you have at present might not.

Here is an example. Height and shoe size have a linear relationship. Let's say you plot the point (height in inches, shoe size in US women's sizes) for 50 people or so. You would see a strong linear relationship. The points wouldn't make a perfect line but very close to it. As height increases so does shoe size and it does so in a linear way. Now if we call the height h and the shoe size s then we would have an equation that relates h and s. So that if we wanted to know the shoe size of someone 96 inches (8 feet high) tall we could get that (or very close to it) from the equation even if there was no one in our sample that was that tall. Similarly we could solve for height if we knew shoe size.

find the measures of the numbered angles in each figure

Answers

1 is 90o
2 is 90 - 27 = 63
3 63 angles 2 and 3 are in an isosceles triangle. They are opposite equal sides so the angles are equal.

Which of the following represents the most accurate estimation of 375+147

Answers

375+147=522
rounded to the nearest hundred is 500

Felicia bought 4 buckets of popcorn at the movies if she paid a total of $15 how much is one bucket of popcorn?

Answers

15/4 = $3.75 per bucket

Divide 15 and 4 together

15/4 = 3.75

Each book cost ~$3.75

hope this helps

The image on a movie poster was shrunk to make the DVD cover art for the movie, so that the cover art is a scale image of the poster. The poster is 36 inches wide, and the DVD cover art is 6 inches wide. If the diagonal of the poster is 4 feet, what is the diagonal of the DVD cover art?

Answers

Please see the attached image for a visual representation of our scale factor. We can set up this proportion by taking the DVD cover and poster values and placing them in fractions. Cross multiply and divide to solve for x.

The first thing we need to do is find the proportionality constant [tex]k[/tex]. Since we now that the width of a movie poster was shrunk from 36 inches to 6 inches to make the DVD cover, [tex]k= \frac{36}{6} =6[/tex]; therefore, the width of poster was shrunk, in other words divided, by a factor of 6.
Now that we have our proportionality constant lest apply it to the diagonal of the poster to find the diagonal of the DVD cover. But notice that the diagonal of the poster is in feet not inches, so we need to convert 4 feet to inches first. Remember that 1 foot = 12 inches, so lets use that proportion to set up our conversion fraction:
[tex](4feet)( \frac{12inches}{1 foot} )= 48inches[/tex]
The only thing left now is shrunk, divide, the diagonal by our proportionality constant [tex]k[/tex]
[tex] \frac{48}{k} = \frac{48}{6} =8[/tex]

We can conclude that If the diagonal of the poster is 4 feet, the diagonal of the DVD cover will be 8 inches.

In the figure, point B is the midpoint of AC. Use the figure to answer the questions.

(a) Jeremy says that ABD is congruent to CBD by the SAS congruence postulate. Do you agree or disagree? Explain.

(b) Suppose it is also known that AD is congruent to CD. Which postulate or theorem can be used to prove that ABD is congruent to CBD? Justify your answer.

Answers

Answer:

A is true

B = SSS OR RHS

Step-by-step explanation:

bcoz both can be applied here

Jeremy's statement that triangle ABD is congruent to triangle CBD by the SAS congruence postulate is incorrect.

If we are also given that AD is congruent to CD, then we can use the SSS congruence postulate to prove that triangle ABD is congruent to triangle CBD.

Answer to part (a)

I disagree with Jeremy's statement that triangle ABD is congruent to triangle CBD by the SAS congruence postulate.

The SAS congruence postulate states that two triangles are congruent if they have two pairs of corresponding sides congruent and the included angle congruent.

In this case, we have two pairs of corresponding sides congruent (AB = BC and AD = CD, since B is the midpoint of AC). However, we are not given that the included angle (angle ABD) is congruent to angle CBD.

Therefore, we cannot use the SAS congruence postulate to prove that triangle ABD is congruent to triangle CBD.

Answer to part (b)

If we are also given that AD is congruent to CD, then we can use the SSS congruence postulate to prove that triangle ABD is congruent to triangle CBD.

The SSS congruence postulate states that two triangles are congruent if they have three pairs of corresponding sides congruent.

In this case, we have three pairs of corresponding sides congruent (AB = BC, AD = CD, and BD = BD). Therefore, we can use the SSS congruence postulate to prove that triangle ABD is congruent to triangle CBD.

For more such information on: SAS congruence

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Michaela caught 3 fish, which weigh a total 19 1/2 pounds. One fish weighs 7 5/8 pounds and another weighs 5 3/4 pounds. How much does the third fish weigh?

Answers

Find a common denominator for 2,4,8. Which is 8. Change the fractions to new ones.

1) 19 4/8= 156/8 Then add the second. 2) 7 5/8= 61/8 one and the third
3) 5 6/8= 46/8 one. Which is

15/8. Then, subtract your answer and the first one. You get 141. Simplify. 17 5/8

6 and 1/8. Tell me if you would like to see my equation.

A rope that is 2 feet and 6 inches long is cut into 3 strips in a ratio of 2: 3: 5 How long is the longest piece How much longer is the longest piece than the shortest one?

Answers

The longest piece is 15 inches i think

Over several months, a meteorologist recorded a total snowfall of 8.6 centimeters. During this period, the average monthly snowfall was 4.3 centimeters. For how many months did the meteorologist collect measurements of the snowfalls?

Answers

He recorded the snowfall for 2 months

A triangular prism and two nets are shown:

Which is the correct net of the prism and what is the surface area of the prism?

Answers

the correct net of the prism is Net A
surface area of the prism is
Surface area = Area of two triangular faces + Area of bottom rectangle + Area of two side rectangles

View attachment

Hope this helps

The correct net of the prism is net A and the surface area of the prism is 510 square inches

How to determine the surface area

To calculate the area of the triangular prism, we make use of the net A

Start by calculating the area of the rectangle.

The dimension of the rectangle is (5 + 12 + 13) by 15

So, the area of the rectangle is:

[tex]Area = (5 + 12 + 13) * 15[/tex]

[tex]Area = 450[/tex]

Next, calculate the area of the two congruent triangles of base 5 and height 12

[tex]Area = 2 * 0.5 * (5 * 12)[/tex]

[tex]Area = 60[/tex]

Sum both areas

[tex]Total = 450 + 60[/tex]

[tex]Total = 510[/tex]

Hence, the surface area of the prism is 510 square inches

Answers

y=5/2x+5 because the slope is 5/2 and the y-intercept is 5

Please help offering All my pts and brainliest answer

(06.02 LC)Which of the following algebraic expressions can be used to express the statement "one less than x squared?"

1 − x2

x2 − 1

1 − 2x

2x − 1

Answers

x2-1 I think that's the answer because there's 1 less, 1 take away the x and squared!! hard to explain but that's how I thought about it

Algebraic expression can be used to express the statement one less than x squared is option (B) [tex]x^{2} -1[/tex]

What is Algebraic expression?

In mathematics, an algebraic expression is an expression built up from integer constants, variables, and the algebraic operations.

Given,

one less than x squared is

[tex]x^{2} -1[/tex]

Hence, the algebraic expression can be used to express the statement one less than x squared is option (B) [tex]x^{2} -1[/tex]

Learn more about Algebraic expression here

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Gabe filled 5 glasses of the same size with ice tea from a full 64-ounce pitcher. There were 3 ounces left in the pitcher. Which equation and solution give the number of ounces, s, in each glass?

Answers

Answer:

The number of ounces in each glass is [tex]12.2\ ounces[/tex]

Step-by-step explanation:

Let

s-------> the number of ounces in each glass

we know that

To get the number of ounces in each glass, subtract the amount of tea left in the pitcher from the total amount of tea and divide the result by the number of glasses.

The equation that represent the situation is

[tex]s=(64-3)/5[/tex]

[tex]s=(61)/5=12.2\ ounces[/tex]

Answer:

Step-by-step explanation:

1.2 decreased by 40%

Answers

1.2 x 0.4 = 0.48
1.2 - 0.48 = 0.72
Solution = 0.72

I hope this helps

0.72 is the answer.

-1/5 of a number is n is at least 17

Answers

-1/5 * n ≤ 17

n ≥ -17/5 is the answer

The distance around a circle is 56.55 meters long. What is the diameter of the circle?

Answers

the answer is 113.1 I hope it helps you and I hope this is correct.

Answer: Diameter of circle = 18m

Explanation:

Given that distance around a circle is = 56.55 meter

The distance around a circle on the other hand is called the circumference .

That means Circumference = 56.55 m

We know the formula of circle's circumference= 2πr

where r is the radius and 2r is diameter of the circle

So,

2πr = 56.55

divide by π both the side

2r = [tex] \frac{56.55*7}{22} [/tex]

Value of π = [tex] \frac{22}{7} [/tex]

2r = 17.993 ≈ 18 m

Diameter of circle = 18m

you have to find the volume of this figure

Answers

area of lower triangular prism:
1/2 x L x H X W
1/2 x 8 x 4.5 x 30 = 540

area of top triangular pyramid
1/3 x B x H
B = 1/2 bxh = 1/2 x 8 x 4.5 = 18

1/3 x 18 x 10 = 60

total volume = 540 + 60 = 600 cubic cm

What’s the answer? Thank You

Answers

33 square inches --> straight line across
25 square inches --> straight line across

I DONT KNOW ASK SOMEONE ELSE BROOOOOOOOOO

Please help!!!

What sum of money will yield a simple interest of Rs.1155 in 3 years 6 months at 11% per annum .

Answers

Answer:

Rs.833.94

Step-by-step explanation:

To solve for the sum of money or principal, we use the formula:

[tex]P=\dfrac{A}{1+rt}[/tex]

The current variables we have are:

A = Rs.1,155

r = 11% or 0.11

t = 3.5

Now let's plug the variables into the formula.

[tex]P=\dfrac{A}{1+rt}[/tex]

[tex]P=\dfrac{1,155}{1+(0.11)(3.5)}[/tex]

[tex]P=\dfrac{1,155}{1+0.385}[/tex]

[tex]P=\dfrac{1,155}{1.385}[/tex]

[tex]P=Rs.833.94[/tex]

Ravi is driving 440 miles to visit his grandma. He drives at a rate of 55 miles per hour. How many hours will it take him to get 34 of the way there?

Answers

you answer is about one hour i guess

Answer:

The answer is 6 hours

Step-by-step explanation:

;)

Help with this question please!!

Answers

The first one is an answer because it simplifies to:
[tex]3(6x) = 18x[/tex]

The third one is answer because it simplifies to:
[tex]2x(9) = 18x[/tex]

Those are all your answers: Option 1 and Option 2.

HELP EXPERTS AND GENIUSES PLS HELP

What is the best approximation for the circumference of a circle with a radius of 45 cm?

Use 3.14 to approximate pi.

1:70.65 cm
2:141.3 cm
3:282.6 cm
4:6358.5 cm

Answers

45 * 2 = 90
90 x 3.14 = 282.6 cm

answer is: 3:282.6 cm

Answer:

282.6

Step-by-step explanation:

A trapezoid has an area of 24 square meters. The length of the bases of the trapezoid are 5 meters and 7 meters. What is the height of the trapezoid?

Answers

As with any formula, fill in the values you know and solve for the one you don't know.

A = (b1 +b2)/2*h
24 m^2 = (5 m +7 m)/2 * h
24 m^2 = (6 m) * h
(24 m^2)/(6 m) = h
4 m = h

The height of the trapezoid is 4 meters.

Elmo buckets made 54 out of 80 free throw .What percent did he miss

Answers

Answer:

67.50%

Step-by-step explanation:

We can prove that the answer is correct by taking 67.50 percent of 80 to get 54:

(80 x 67.50)/100 = 54

Note that our calculator rounds the answers up to two decimals if necessary. Once again, the answer is as follows:

67.50%

which names the opposite and absolute value of 12

Answers

Opposite: -12
Absolute value: |12| = 12

NEED HELP FAST PLEASE!! Draw the base plan for the set of stacked cubes, assume the no cubes are hidden from view.

Answers

Assuming no cubes are hidden from view, the base view (as if you're looking from underneath the figure) would have a 2 x 2 square of cubes, plus one at the top. This means that your correct choice would be the one I've attached.

The Georgia sales tax is 4%. However, some places in Georgia charge a higher rate of sales tax. This is MOST LIKELY because Question 3 options: shipping goods to some localities in Georgia can be extremely expensive. the sales tax in Georgia is determined by how much money the buyer makes per year. localities in Georgia can add a certain percentage to sales tax for their own needs. sellers can charge whatever they want as long as the minimum state rate is collected.

Answers

The answer is, localities in Georgia can add a certain percentage to sales tax for their own needs.

Final answer:

The most likely reason some localities in Georgia charge higher sales taxes is that they can add to the state's 4% tax to cater to their own financial needs, funding local services and needs.

Explanation:

The question relates to why some places in Georgia might charge a higher rate of sales tax than the state's baseline of 4%. The most likely reason is that localities in Georgia have the authority to add additional percentages to the state sales tax to address their individual financial requirements. This is commonly seen in states where local governments utilize the sales tax mechanism to fund specific local public services and projects. For instance, a city may add a percentage to fund improvements in education, transportation, or healthcare facilities.

The amount of sales tax is determined by multiplying the price of the goods or services by the sales tax rate. When a locality opts to add to the state sales tax, the total sales tax a consumer pays is the sum of the state rate plus any local rates. This system allows for local governments to cater to their unique budgetary needs while still adhering to the broader state tax structure. This is different from other variables, like shipping costs, buyer's income, or seller preferences, which do not generally affect the sales tax rate.

Semi annually means how many times a year?

Answers

Biannual and semiannual can be used interchangeably; they both mean “twice a year.” But biennial describes something that occurs every two years.

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