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
anzhelika [568]
3 years ago
6

Amateur radio operators in the United States can transmit on several bands. One of those bands consists of radio waves with a wa

velength near 40nm.
Calculate the frequency of these radio waves.
Chemistry
1 answer:
NeTakaya3 years ago
5 0

Answer:

7.5 × 10¹⁵ Hz

Explanation:

Given data

  • Wavelength of the radio waves (λ): 40 nm = 40 × 10⁻⁹ m = 4.0 × 10⁻⁸ m
  • Frequency of the radio waves (ν): ?
  • Speed of light (c): 3.00 × 10⁸ m/s

We can determine the frequency of the radio waves using the following expression.

c = λ × ν

ν = c/λ

ν = (3.00 × 10⁸ m/s)/4.0 × 10⁻⁸ m

ν = 7.5 × 10¹⁵ s⁻¹ = 7.5 × 10¹⁵ Hz

You might be interested in
Which types of orbitals are found in the principal energy level n = 2?
AfilCa [17]
Remember this:

1) n is principal quantum number and represents the energy level.

2) l is the second quantum number and represent the type of orbital.

3) l can take values from 0 to n - 1

4) each number of l is associated with a type of orbital.  This table shows the equivalence:
 
l number       type of orbital

0                    s

1                    p

2                    d

3                     f

With that, you can tell that n = 2 permits l = 0 and 1, which is orbitals s and p.

Therefore, the answer is the option D) s, p.
3 0
3 years ago
Read 2 more answers
Imagine that the moon’s orbit wasn’t elliptical and it that it did not orbit the earth at a 5 degree angle. How would this chang
Readme [11.4K]

Answer:

Without the tilt, lunar eclipse will happen every month.

4 0
3 years ago
Read 2 more answers
Which statement about the relationship between laws, hypotheses, and theories is true?
MariettaO [177]
<h2><em>if a hypothesis is not contradicted after a lot of testing it may be considered a law </em></h2><h2><em></em></h2>

<em />

4 0
3 years ago
Heat energy is useful to us in all the following ways except:
Lelechka [254]

Answer:

Heat energy is transferred to cooler objects to reduce the temperature of those objects.

Explanation:

The fourth option is not correct.

A correct way of writing it would be : " Heat energy is transferred from cooler objects to reduce the temperature of those objects.". When an object loses heat energy, its temperature reduces. Conversely, when an object receives heat energy, its temperature increases.

3 0
3 years ago
Help!!! Will give brainliest!!!!
luda_lava [24]

Answer:

The temperatures get hotter.

Explanation:  

Places closer/on the equator are facing the sun.  Texas and Africa are located on the equator.

3 0
2 years ago
Other questions:
  • A bathtub is filled with 100 L of water. A cat jumps in and the volume rises to 125 L. If the cat has a mass of
    15·1 answer
  • After ensuring the equipment is turned off and unplugged what is the next step in cleaning large equipment by hand
    12·1 answer
  • Why do some atoms form positive ions and others form negative ions?
    14·1 answer
  • Define the term ionization energy. Choose one:
    11·1 answer
  • Distilled water has a hydronium ion concentration of 1 × 10–7 M. What is the pH of distilled water?
    12·1 answer
  • In class, students were given the following problem: "Aluminum satellite dishes resist corrosion because aluminum reacts with ox
    8·1 answer
  • Can a tank of oxygen gas ever be half empty? explain
    13·2 answers
  • There are five constitutional isomers with the molecular formula C6H14. When treated with chlorine at 300°C, isomer A gives a mi
    9·1 answer
  • Please help !!! (no links or ill report)
    13·1 answer
  • Process by which plants, algae, and many types of bacteria use sunlight, water, and carbon dioxide to make food and oxygen
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!