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ella [17]
3 years ago
9

Kinetic energy during an object falling

Physics
1 answer:
Crazy boy [7]3 years ago
6 0

Answer:

kinetic \: energy =  \frac{1}{2} m {v}^{2}  \\  m = mass \: of \: the \: object \\ v = velocity \:

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Unpolarized light is passed through an optical filter that is oriented in the vertical direction.
VashaNatasha [74]

In order to solve this problem it is necessary to apply the concepts related to intensity and specifically described in Malus's law.

Malus's law warns that

I = I_0 cos^2\theta

Where,

\theta= Angle between the analyzer axis and the polarization axis

I_0 =Intensity of the light before passing through the polarizer

The intensity of the beam from the first polarizer is equal to the half of the initial intensity

I = \frac{I_0}{2}

Replacing with our the numerical values we get

I = \frac{46}{2}

I = 23W/m^2

Therefore the  intensity of the light that emerges from the filter is 23W/m^2

5 0
3 years ago
Consider light that has its third minimum at an angle of 23.3° when it falls on a single slit of width 4.05 μm. Find the wavelen
fredd [130]

Answer:

The wavelength of light is 533 nm.

Explanation:

It is given that,

Width of a single slit, d=4.05\times 10^{-6}\ m

Light has its third minimum at an angle of 23.3° when it falls on a single slit. For destructive interference, the equation for minima is given by:

d\ sin\theta=n\lambda  

Here, n = 3

\lambda=\dfrac{d\ sin\theta}{n}

\lambda=\dfrac{4.05\times 10^{-6}\times sin(23.3)}{3}

\lambda=5.33\times 10^{-7}\ m

\lambda=533\ nm

So, the wavelength of the light is 533 nm. Hence, this is the required solution.

6 0
3 years ago
how can there be so many different substances in the world if there are only a few elements that are common? 
LuckyWell [14K]
-- If there are only  <em>10</em>  elements in the universe that can make compound molecules, and a compound molecule can be formed by combining  1,  2,  3, or  4  different elements, then that's already the possibility of  at least 400 different molecules.

-- There are many more than  10  elements that can combine to form compound molecules.

-- Every single "<em>organic</em>" molecule, of which there are thousands, is the combination of <em>carbon</em> with other elements.

-- Most all of the substances that can be distilled out of oil, including the paraffin waxes, the alcohols, gasoline, kerosene, butane, propane, octane, and natural gas, are made of just carbon, hydrogen, and oxygen, only with different numbers of each one. 

-- Plastics, drugs, rubber, and DNA are examples of molecules that are made of <em>hundreds</em> of atoms.
3 0
3 years ago
Which cellular structure would be the most likely location for the synthesis of these enzymes?
Delvig [45]
<span>Lysosomes are vesicles that create and transport enzymes to the endoplasmic reticulum. The rough endoplasmic reticulum synthesizes the enzymes. Also, ribosomes synthesize proteins.</span>
7 0
3 years ago
The image shows positions of the earth and the moon in which region would an astronaut feel the lightest
trapecia [35]

Answer:

The moon region

Explanation:

This is because there is little to no gravity on the moon. That is where the astronaut would feel the lightest.

5 0
3 years ago
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