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Zanzabum
3 years ago
14

⚠️ PLEASE HELP ⚠️

Physics
2 answers:
Svetllana [295]3 years ago
5 0

Answer:

-79.6

-80

-81.2

Explanation:

Alexandra [31]3 years ago
5 0

Answer:

Answers are as follows:

-79.6

-80

-81.2

Explanation:

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In the photoelectric effect, the greater the frequency of the illuminating light, the greater the:_______
TEA [102]

Answer:

B. Maximum velocity of ejected electrons.

Explanation:

The ejection of electrons form a metal surface when the metal surface is exposed to a monochromatic electromagnetic wave of sufficiently short wavelength or higher frequency (or equivalently, above a threshold frequency),  which leads to the enough energy of the wave to incident and get absorbed to the exposed surface emits electrons. This phenomenon is known as the photoelectric effect or photo-emission.

The minimum amount of energy required by a metal surface to eject an electron from its surface is called work function of metal surface.

The electrons thus emitted are called photo-electrons.

The current produced as a result is called photo electricity.

Energy of photon is given by:

E=h.\nu

where:

h = Planck's constant

\nu= frequency of the incident radiation.

8 0
3 years ago
Helpp .....meeee pleaseee
Lady bird [3.3K]

Answer:

hydrogen

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Explanation:

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5 0
2 years ago
Quark gluon plasma (qgp) is what kind of state of matter I.e. it’s equation of state is what?
sladkih [1.3K]

a 10 kg block reaches a point with a velocity of 15 m per second and slides down a rough track my the coefficient of the kinetic energy between the two surface ab and the block iis0.52

5 0
1 year ago
If a single constant force acts on an object that moves on a straight line, the object's velocity is a linear function of time.
olya-2409 [2.1K]

Answer:

F=mkv

Explanation:

Given that

v = v_i - kx

We know that acceleration a given as

a=\dfrac{dv}{dt}

v = v_i - kx

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\dfrac{dv}{dt}=0-k\dfrac{dx}{dt}

We know that

F=m\dfrac{dv}{dt}

F=-mk\dfrac{dx}{dt}

F=-mkv

So the magnitude of force F

F=mkv

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3 years ago
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Out of the choices given, the best choice to explain the direction of the moving force of air is from area o high pressure to areas of low pressure. 

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