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
PIT_PIT [208]
3 years ago
5

What is the frequency of radiation whose wavelength is 0.80 nm ? express the frequency in inverse seconds to three significant d

igits?
Physics
1 answer:
Mashcka [7]3 years ago
5 0
The relationship between the frequency (f) of an electromagnetic wave, the speed of the wave (which is the speed of light, c) and its wavelength \lambda is given by
f= \frac{c}{\lambda}

Since the wavelength of the radiation in the problem is \lambda= 0.80 nm = 0.80 \cdot 10^{-9} m, by substituting numbers in the formula we  can get the frequency:
f= \frac{3 \cdot 10^8 m/s}{0.80 \cdot 10^{-9} m} =3.75 \cdot 10^{17} s^{-1}
You might be interested in
Topic Gravitational force amd firld strength.. help me please
I am Lyosha [343]

The gravitational force between <em>m₁</em> and <em>m₂</em> has magnitude

F_{1,2} = \dfrac{Gm_1m_2}{x^2}

while the gravitational force between <em>m₁</em> and <em>m₃</em> has magnitude

F_{1,3} = \dfrac{Gm_1m_3}{(15-x)^2}

where <em>x</em> is measured in m.

The mass <em>m₁</em> is attracted to <em>m₂</em> in one direction, and attracted to <em>m₃</em> in the opposite direction such that <em>m₁</em> in equilibrium. So by Newton's second law, we have

F_{1,2} - F_{1,3} = 0

Solve for <em>x</em> :

\dfrac{Gm_1m_2}{x^2} = \dfrac{Gm_1m_3}{(15-x)^2} \\\\ \dfrac{m_2}{x^2} = \dfrac{m_3}{(15-x)^2} \\\\ \dfrac{(15-x)^2}{x^2} = \dfrac{m_3}{m_2} = \dfrac{60\,\rm kg}{40\,\rm kg} = \dfrac32 \\\\ \left(\dfrac{15-x}x\right)^2 = \dfrac32 \\\\ \left(\dfrac{15}x-1\right)^2 = \dfrac32 \\\\ \dfrac{15}x - 1 = \pm \sqrt{\dfrac32} \\\\ \dfrac{15}x = 1 \pm \sqrt{\dfrac32} \\\\ x = \dfrac{15}{1\pm\sqrt{\dfrac32}}

The solution with the negative square root is negative, so we throw it out. The other is the one we want,

x \approx 6.74\,\mathrm m

5 0
3 years ago
Students in a science class were provided with this image and asked to identify which color of light would refract the most if w
djverab [1.8K]
Violet would refract the most as it has the shortest wavelength amongst the visible spectrum.
8 0
3 years ago
what is the change in the force of gravity between any two bodies when mass of each body is double keeping the distance between
frez [133]

Please find attached photograph for your answer. Do comment if you have any query.. Please do mark me Brainliest if you like my answer

8 0
3 years ago
1
Ray Of Light [21]

Acceleration = Force \ mass

0,375N/0,60kg=0.6ms-2

4 0
2 years ago
How does frequency and pitch affect sound
aleksandr82 [10.1K]
<span>The word that musicians use for </span>frequency<span> is </span>pitch<span>. The shorter the wavelength, the higher the </span>frequency<span>, and the higher the </span>pitch<span>, of the </span>sound<span>. In other words, short waves </span>sound<span> high; long waves </span>sound<span> low.</span>
7 0
3 years ago
Other questions:
  • A beaker has a mass of 125g. What is the mass of this beaker in decigrams
    10·1 answer
  • On his first day as a school psychologist, Daniel took a trip to the school ground and quietly sat in the corner watching the ch
    11·1 answer
  • According to the photon energy formula, tripling the frequency of the radiation from a monochromatic source will change the ener
    9·2 answers
  • How many regions does the deltoid muscle have
    5·2 answers
  • Because she had serious traffic accident on Friday the 13th of last month, Felicia is conceived that all Friday the 13th will br
    14·1 answer
  • Describe what happens to the gravitational force when the Sun, Earth and Moon<br> are in a line.
    12·1 answer
  • Un cuerpo recibe una fuerza de 100N y produce una aceleracion de 2 m/s² determine la masa del cuerpo
    9·1 answer
  • What are the two types of opportunity cost? Select two.
    14·1 answer
  • Define and Explain the Sovereignty
    7·1 answer
  • Which statement is true of a mechanical wave?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!