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3 years ago

Which of the following types of electromagnetic radiation has the longest wavelength?

Mathematics

1 answer:

snow_lady [41]3 years ago

6 0

Answer: Radio waves. Next longer is visible, ultraviolet, and shortest is x-rays.

Step-by-step explanation:

Just a fact. Radio waves also have the lowest energy and frequency. This is a physics question.

Wavelength = speed of light/frequency

Meters = meters per second / Hertz

= meters / second × seconds

Energy = Planck's constant times frequency.

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You like math then here

Igoryamba

Answer:

-8b + 9 - 5k

Step-by-step explanation:

I am assuming the blue highlighted portion is your answer, and is not a part of the initial question

(-4b + 15 - 7k) - (6 + 4b - 2k)

Combine like terms

-4b - + 4b

Negative + Positive = Negative

-4b - 4b = -8b

15 - 6 = 9

-7k - - 2k

Negative + Negative = Positive

-7k + 2k = -5k

Put them all together:

0b + 9 - 5k

Simplify

-8b + 9 - 5k

I got the same answer as you (just in a different order)

5 0

2 years ago

Write an algebraic expression for the following word phrase: the quotient of r and 12?

andre [41]

The expression is r/12.

4 0

3 years ago

Read 2 more answers

Which expression is equivalent to -2(5x – 0.75)?

katen-ka-za [31]

Answer:

0 - 10x + 1.5

Step-by-step explanation:

-2(5x - 0.75)

Expand the bracket

-10x + 1.5

0 - 10x + 1.5 is the equivalent expression

3 0

2 years ago

Read 2 more answers

Find the ratio in which the line joining the points (2, 4, 16) and (3, 5, -4) is divided by the plane 2x – 3y+ z+ 6 = 0. Also fi

Nastasia [14]

Answer:

Step-by-step explanation:

let the plane intersects the join of points in the ratio k:1

let (x,y,z) be the point of intersection.

$x=\frac{3k+2}{k+1} \\y=\frac{5k+4}{k+1} \\z=\frac{-4k+16}{k+1} \\\because ~(x,y,z)~lies~on~the~plane.\\2(\frac{3k+2}{k+1} )-3(\frac{5k+4}{k+1} )+\frac{-4k+16}{k+1} +6=0\\multiply~by~k+1\\2(3k+2)-3(5k+4)+(-4k+16)+6(k+1)=0\\6k+4-15k-12-4k+16+6k+6=0\\-7k+14=0\\k=2\\x=\frac{3*2+2}{2+1} =\frac{8}{3} \\y=\frac{5*2+4}{2+1}= \frac{14}{3} \\z=\frac{-4*2+16}{2+1} =\frac{8}{3}$

point of intersection is (8/3,14/3,8/3)

and ratio of division is 2:1

5 0

2 years ago

Tory creates a cell phone app. He wants to distribute it through a company that will pay him $100 plus $0.25 every time the app,

MakcuM [25]

Answer: 1520 downloaded's

Step-by-step explanation:

$0.25 divided by $380 = 1520

1520 x $0.25 = $380

5 0

2 years ago