1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
oksian1 [2.3K]
4 years ago
5

Radio waves travel at the speed of light, 3.0 × 108 m/s. What is the wavelength of a radio wave from an AM station broadcasting

at a frequency of 7.5 × 105 Hz? (λ = v/ f)
Mathematics
2 answers:
pochemuha4 years ago
6 0

Answer:

4 × 10^2 M

Step-by-step explanation:

We are given;

Speed of light as 3.0 × 10^8 m/s

Frequency of radio wave as 7.5 × 10^5 Hz

We are required to determine the wavelength.

Using the formula;

wavelength, λ = v/f

Note; Radio wave is an electromagnetic wave, therefore travels with the speed of light.

Therefore;

wavelength, λ = 3.0 × 10^8 m/s ÷ 7.5 × 10^5 Hz

                      = 4 × 10^2 M

Hence, the wavelength of the radio wave is 4 × 10^2 M

inna [77]4 years ago
6 0

Answer:

4*10^2m

Step-by-step explanation:

We are given;

Speed of light as 3.0 × 10^8 m/s

Frequency of radio wave as 7.5 × 10^5 Hz

We are required to determine the wavelength.

Using the formula;

wavelength, λ = v/f

Note; Radio wave is an electromagnetic wave, therefore travels with the speed of light.

Therefore;

wavelength, λ = 3.0 × 10^8 m/s ÷ 7.5 × 10^5 Hz

                     = 4 × 10^2 M

Hence, the wavelength of the radio wave is 4 × 10^2 M

You might be interested in
Mark has a window that is 67 square feet. The window is in the shape of a square, which of the following expresses the length of
Scorpion4ik [409]

Answer:

\sqrt{67}\:\mathrm{feet}

Step-by-step explanation:

The area of a square with side length s is given by s^2.

Therefore,

s^2=67,\\s=\fbox{$\sqrt{67}$}.

8 0
3 years ago
The perimeter of a rectangle is 80 inches. The length is 4 inches longer than twice the width. What are the dimensions of the re
Ganezh [65]

Answer:

<h3>length = 28 cm</h3><h3>width = 12 cm</h3>

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

l is the length

w is the width

From the question

Perimeter = 80cm

The length is 4 inches longer than twice the width is written as

l = 4 + 2w

Substitute this into the formula and solve for the width

That's

80 = 2( 4 + 2w) + 2w

80 = 8 + 4w + 2w

6w = 80 - 8

6w = 72

Divide both sides by 6

w = 12 cm

Substitute w = 12 cm into l = 4 + 2w

That's

l = 4 + 2(12)

l = 4 + 24

l = 28cm

Therefore

length = 28 cm

width = 12 cm

Hope this helps you

7 0
3 years ago
HELP ME WITH MY MATH
Simora [160]

Answer:

Function is sqrt(4-x)

Step-by-step explanation:

If you need longer answer Write me

5 0
3 years ago
Can you rewrite this in slope intercept form?: 5x-y=4
kykrilka [37]
First you would have to find the Slope of the equation
m = 5 (m = slope)
 
now you can use the slope/intercept form

y = 5x + 4 
would be your answer 
H0P3 It H3LPS :)
7 0
3 years ago
Write a equation that is parallel to 5x-y=4
ozzi
Let's have this equation equal y first. All we have to do is add y to both sides and subtract 4 from both sides.
5x-4=y
Now, to get a parallel line, the y intercept has to change. The y intercept (the -4 in the equation) can be an infinite amount of number but -4.
Let's choose 6. We would have 5x+6=y or you could put it in the way the other equation was, 5x-y=-6.
6 0
4 years ago
Other questions:
  • Ten less than 3 times a number is the same as the number plus 4
    9·1 answer
  • Please help asap!! need this one right!!
    6·2 answers
  • For which data sets is the median a better measure of center than the mean?
    15·1 answer
  • Y=4x+4, y=4x-3, no solutions, infinitely many solutions, (0,4), or (0,3)
    15·1 answer
  • Does the expression d - 12 have a greater value when d = 42 or when d = 46?
    8·1 answer
  • Find the 7th term in the
    15·1 answer
  • S=R-rR solve for R<br><br> the answer is R=S/1-r <br> i just don't know how toget there
    7·2 answers
  • What is 2(x-7)-10+12-4x and the work for it
    11·1 answer
  • GEOMETRY-TRIG
    10·1 answer
  • A cylinder with a base diameter of x units has a volume
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!