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lara [203]
3 years ago
7

An FM radio station broadcasts at 98 MHz. what is the energy of each photon in Joule? Use h= 6.6 X10^-34 J*s for Planck constant

.
Mathematics
1 answer:
Nadya [2.5K]3 years ago
7 0

Answer:

The energy of each photon is 6.468 \times 10^{-26} Joule.

Step-by-step explanation:

Consider the provided information.

According to the plank equation:

E=h\nu

Where E is the energy of photon, h is the plank constant and \nu is the frequency.

It is given that h= 6.6 \times10^{-34} and \nu=98MHz

98Mhz = 98\times 10^6Hz

Substitute the respective value in plank equation.

E=6.6\times 10^{-34}\times 98\times 10^6

E=6.6\times 98\times 10^{-34+6}

E=646.8 \times10^{-28}

E=6.468 \times 10^{-26}

Hence, the energy of each photon is 6.468 \times 10^{-26} Joule.

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A straight line is 180° so if we do 180 - 110 we get 70° therefore the angle below the 110° is 70°.

So we now know two angles in the triangle, 70° and 80°. Add these and we get 150°. Now we can determine the final angle (the one labelled (2x - 6)) which will be 30°.

So let’s make it into an equation:

2x - 6 = 30

Add 6 to both sides to isolate 2x:

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Divide by 2 to get the value of x:

x = 18



10) Since the sum of all angles in a triangle is 180, and there are only 3 angles, we can determine A easily.

B = 10°
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So to determine A:

180 - 160 - 10

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Therefore A = 10°.


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8) x = 18
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3 years ago
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KATRIN_1 [288]
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kirill [66]

*The complete question is in the picture attached below.

Answer:

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Step-by-step Explanation:

The volume of the solid shape = volume of cone + volume of the hemisphere.

==> 270πcm³ + ½(4/3*π*r³)

To calculate the volume of the hemisphere, we need to get the radius of the hemisphere = the radius of the cone.

Since volume of cone = 270πcm³, we can find r using the formula for the volume of cone.

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⅓*10*r²(π) = 270 (π)

10/3 * r² = 270

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3 years ago
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