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
maks197457 [2]
4 years ago
5

A communications satellite transmits a radio wave at a frequency of 9.4 x 10^9 Hz. What is the signal’s wavelength? Assume the w

ave travels in a vacuum. Show your work.
Biology
1 answer:
sergejj [24]4 years ago
5 0
To calculate this we will use the light equation:
c=λ*f

We have Frequency f=9.4* 10^{9}Hz.
We know that speed of light in vacuum is c =3.8* 10^{8} m/s.
Since a unit of speed of light is m/s, we can change the unit of frequency Hz to 1/s, since Hz means cycles per second (f=1/T).

So:
f=9.4* 10^{9}1/s
<span>c =3.8* 10^{8} m/s
</span>
<span>c=λ*f
</span>⇒ λ= \frac{c}{f}
⇒ λ= \frac{3.8* 10^{8}}{9.4* 10^{9}}
⇒ <span>λ</span>=0.04 m

You might be interested in
Can you please help me pls?
Mamont248 [21]

Answer:

Sea turtles are now facing much greater challenges as a result of climate change. Coastal ecosystems will be eroded and damaged as sea levels rise and storms become more strong. Warming ocean currents could expose sea turtles to new predators while also damaging the coral reefs that some of them depend on to survive.

Explanation:

8 0
3 years ago
Atoms of which two elements will form an ionic bond? A and O, Fe and Co, Mg and Cl, or Rb and Al
viva [34]

The atoms of Mg (Magnesium) and Cl (Chlorine) will form an ionic bond. Ionic bond is basically formed by the sharing of electrons. Magnesium being a metal has two electrons in its outermost shell which Mg can readily loose to attain stability, chlorine on the other hand has seven electrons in the outermost shell so it can accept one electron to attain stability. So, both Mg  Cl can form ionic bond with each other so form a stable compound MgCl2.

5 0
3 years ago
Read 2 more answers
What two substances are needed for respiration?
sashaice [31]

Answer:Oxygen and glucose

Explanation:Both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.

3 0
3 years ago
Read 2 more answers
Which explains how the moon causes high tides on the earth?
Arturiano [62]
<span>The correct answer is A. The moon's gravity pushes on the earth. The push indents the earth's watery envelope and creates tidal bulges. Where the water is pushed in is high tide. There are two types of tides on Earth - high tide and low tide. Both of these types of tides are affected by the Earth's natural satellite, the Moon. Due to its gravity, everything on Earth is pushed, however, waters on Earth are under the strongest impact by this.</span>
5 0
3 years ago
What is the composition of the most common mineral compounds that make up Earth's crust and mantle? A. oxalates, oxygen, and one
ValentinkaMS [17]
I Had The Same Question On A  Test And The Real Answer Is D Silicon,Oxygen,And One Or More Metal Elements.  

Hope This Helps Please Pick Brainliest :) 
3 0
3 years ago
Read 2 more answers
Other questions:
  • Identify two diffrences between carbon 12 and carbon 14
    6·1 answer
  • The thermosphere has ____ air pressure than the mesosphere
    7·1 answer
  • What is the mechanical advantage of a machine that applies a force of 1000 N to an object when a force of 500 N is applied to th
    13·2 answers
  • What is the function of a nucleus in a cell the nucleus
    10·1 answer
  • From the outside, a whale’s flippers appear to be flat, solid objects. However, when scientists observed the bones within whale
    13·2 answers
  • While all zebras have stripes, no two zebras share the same pattern. Variation, overpopulation or adaptation
    12·1 answer
  • The genetic code is:
    15·1 answer
  • The function of a cell depends primarily on its
    11·2 answers
  • Joel lives near the beach one day he sees that the tide is much lower than he’s ever seen before the high tide is higher than he
    11·1 answer
  • WARM-UP
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!