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Marrrta [24]
2 years ago
12

The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y. y = startfraction 3 x 1

0 superscript 8 baseline over x endfraction what is the wavelength for radio waves with frequency 3 × 109?
Mathematics
1 answer:
melomori [17]2 years ago
7 0

The wavelength for radio waves with frequency 3 × 10⁹ Hz is 0.1 m.

<h3>What's the relation between frequency and wavelength of electromagnetic waves?</h3>
  • For electromagnetic waves travelling in vaccum, the product of frequency and wavelength is the speed of light in vaccum.
  • Mathematically, frequency × wavelength = 3×10⁸ m/s (which is speed of light)
  • So, wavelength= 3×10⁸/ frequency

<h3>What's the wavelength of radio wave with frequency 3×10⁹ Hz ?</h3>

Wavelength of the radio wave= 3×10⁸/3×10⁹ = 0.1 m

Thus, we can conclude that the wavelength of the radio wave with frequency of 3 × 10⁹ Hz is 0.1 m.

Learn more about the wavelength of electromagnetic wave here:

brainly.com/question/27817563

#SPJ1

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Answer:

The coordinates of the point is (5.5, -2)

Step-by-step explanation:

Okay, what we want to do here is to get the point that divides the line that joins the points (3,3) to (7,-5) in the ratio 5 to 3

Generally, given the ratio a:b and we want to divide the line joining the points (x1,y1) and (x2,y2) in that ratio, we use the condensed formula below;

Let’s call the point dividing the line in the given ratio z.

The coordinates of Z is;

{(bx1 + ax2)/(a+b), (by1 + ay2)/(a+b)}

In this question (x1,y1) = (3,3)

While (x2,y2) = (7,-5)

while a:b = 5:3

Substituting these values into the coordinate equation for point z, we have ;

{((3(3) + 5(7))/(5+3), ((3)(3) + 5(-5))/(5+3)}

= {44/8 , -16/8} = {5.5, -2}

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3 years ago
Find the geometric mean between 8 and 18. Write answer as a simplified radical. No Decimals!!!!
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Answer: Therefore, the geometric mean of 8 and 18 is 12. Therefore, the geometric mean of 8 and 18 is 12.

Step-by-step explanation:

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Answer

a. The backpack is $4.50

b. The sweatshirt is $2.70

Step-by-step explanation:

a. 30 x 0.15 = 4.50 (The 0.15 is from the price you are actually paying for the item. Because the item is 85% off, you are paying for 15% of the usual price. 15% as a decimal is 0.15 so you multiply that to the original price to find the amount u will pay.)

b. 18 x 0.15 = 2.70  

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Three friends go to the movies. Each ticket costs $7. They also buy popcorn for $6, candy for $4 and a drink for $2. The friends
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Each friend owes 11 dollars
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Read 2 more answers
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