2 years ago

Is there any book for physics.

Physics

1 answer:

ValentinkaMS [17]2 years ago

3 0

Answer:

which class or course

Explanation:

please tell

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At what rate does gravity cause objects to accelerate at sea level on earth

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The acceleration due to gravity on Earth is 9.8 m/s per second.

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A glass plate (n = 1.64) is covered with a thin, uniform layer of oil (n = 1.28). A light beam of variable wavelength from air i

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Explanation:

This is case of interference in thin films

for constructive interference in thin film the condition is

2μ t = (2n+1)λ/2 ; μ is refractive index of oil , t is thickness of oil , λ is wave length of light .

2 x 1.28 x t = λ/2 , if n = 0

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$d=5.376km$

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Since <em>light is so fast</em> we can assume no time passes between the lightning strikes and we observe it. We want to know then how far away did the strike occur for the sound to take 16s to reach our ears. Since the definition of velocity tells us that $v=d/t$ , we can write $d=vt=(336m/s)(16s)=5376m=5.376km$

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3 years ago

As you may well know, placing metal objects inside a microwave oven can generate sparks. Two of your friends are arguing over th

poizon [28]

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$4.048\times 10^{-7}\ m$

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c = Speed of light = $3\times 10^8\ m/s$

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Wavelength ejected is given by

$\lambda=\dfrac{hc}{E}\\\Rightarrow \lambda=\dfrac{6.626\times 10^{-34}\times 3\times 10^8}{4.91\times 10^{-19}}\\\Rightarrow \lambda=4.048\times 10^{-7}\ m$

The maximum wavelength in angstroms of the radiation that will eject electrons from the metal is $4.048\times 10^{-7}\ m$

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3 years ago

The energy source used to produce most of the electrical energy in the United States______________.

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The most used energy is coal i believe.

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3 years ago

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Is there any book for physics.​

Is there any book for physics.