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Paul [167]
4 years ago
9

Electromagnetic radiation can be specified by its wavelength ( ), its frequency ( ) or its period ( ). The period is the time it

takes one complete wavelength to pass a point in space. Based on this information, what is the mathematical relationship between and ?
Physics
1 answer:
kirill [66]4 years ago
3 0

Answer:

The relation between f,T,λ

f=\frac{1}{T}

λ =\frac{v}{f}

λ =\frac{v}{T}

Explanation:

Let us consider,

                         wavelength as λ

                             frequency as  f

                             time period as T

The <em>time period</em> is defined as time taken by the wave to complete one oscillation or number or seconds to complete one full oscillation.

The <em>frequency </em>is defined as number of oscillation done per second.

The <em>wavelength</em> is defined as distance between two successive crests or trough. in a wave.

<em>The frequency and time period are reciprocals. </em>

<em>The wavelength and frequency are reciprocals ie larger the wavelength shorter is the frequency</em>

The relation between frequency and time period is f =\frac{1}{T}.

The relation between wavelength and frequency is λ =\frac{v}{f}

                     where v is velocity of light.

The relation between wavelength and time period is λ =\frac{v}{T}

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Bones are composed of three main components, what are they? (Choose all that apply)
Alinara [238K]

Answer:

funny bone and compact bone

Explanation:

your funny bone only reacts if you hit it against something the compact bone is the heaviest and strongest bone in your body and the bone marrow is soft sponge like tissue in the center if most bones that produces white and red blood cells

6 0
3 years ago
A 10 N board of uniform density is 5 meters long. It is supported on the left by a string bearing a 3 N upward force. In order t
NikAS [45]

Answer:

C.\frac{25}{7}m

Explanation:

We are given that

Weight of board=w=10 N

Length of board=L=5 m

Tension in the string=T=3 N

Applied upward force=F=7 N

We have to find the distance at which its left wedge would they need to place this force in order for the board to be in static equilibrium.

Let r be the distance at which its left wedge would they need to place this force in order for the board to be in static equilibrium.

The board is uniform therefore, the center of board is the mid- point of board.

Therefore, the lever arm of weight=r_1=\frac{L}{2}=\frac{5}{2}m

Now, the torque exerted by the weight of the board

\tau_1=Force\times perpendicular\;distance=10\times \frac{5}{2}=25 N

The torque exerted  by applied force=\tau_2=7\times r=7r

In static equilibrium

The sum of rotational forces=0

\tau_1+\tau_2=0

The two rotational force act in opposite direction therefore,

\tau_2=-7r

Substitute the values

25-7r=0

7r=25

r=\frac{25}{7}m

Hence, option C is true.

7 0
3 years ago
The heating element in an automobile window
vovikov84 [41]
There are 3 equations for power, P = VI = V^2/R = I^2/R

Given the values you have been given, we know we'll be using V^2/R.

Substituting the values in, we get:

P = 12^2/1.2 = 144/1.2 = 120W
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3 years ago
The sun, sol, is a g-class main sequence star. what is the approximate temperature of the sun's surface
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If it is true or false than it is true
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4 years ago
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carbon-14 has a half-life of approximately 5,700 years. a fossil shell contain 25% of the original amount of its carbon-14. appr
denis23 [38]

The half-life equation m=m_{0} (\frac{1}{2})^n in which <em>n </em>is equal to the number of half-lives that have passed can be altered to solve for <em>n.</em>

<em>n = \frac{log(\frac{m}{m_{0}} )}{log(\frac{1}{2})}</em>

<em>\frac{log(\frac{.25}{1} )}{log(\frac{1}{2})} = 2</em>

Then, the number of half-lives that passed can be multiplied by the length of a half-life to find the total time.

<em>2 * 5700 =  </em>11400 yr

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