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baherus [9]
3 years ago
10

Density is given in ____. a. Pa/cm3 c. g/s2 b. N/m2 d. g/cm3

Physics
1 answer:
Ainat [17]3 years ago
3 0
Density is defined as  [mass] / [volume] .

The only choice listed with those physical dimensions is 'd' .
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Which is true?The photoelectric effect occurs only for frequencies below the cutoff frequency, regardless of the intensity.The p
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Answer:

The photoelectric effect occurs only for frequencies above the cutoff frequency, regardless of the intensity.

Explanation:

The photoelectric effect occurs when light is shined on metals such as zinc beyond a certain frequency (the threshold frequency), which causes electrons to escape from the zinc. The electrons which are fleeing are called photo electrons.

Therefore photo electric effect is

The photoelectric effect occurs only for frequencies above the cutoff frequency, regardless of the intensity.

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2 years ago
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disa [49]
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3 years ago
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Vesnalui [34]

We anticipate a constant Poynting vector of magnitude since the hot resistor will be emitting heat and none of the electric or magnetic fields will change over time.

S = P/A

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Always pointing away from the wire, this Poynting vector.

<h3>What is the Poynting vector?</h3>

Describes the size and direction of the energy flow in electromagnetic waves using a Poynting vector. It bears the name of the 1884 invention of English physicist John Henry Poynting. It stands for the electromagnetic field's directional energy flux or power flow. The Poynting vector is significant in a static electromagnetic field because it determines the direction of energy flow in an electromagnetic field. This vector represents the radiation pressure of an electromagnetic wave and points in its direction of propagation.

To learn more about Poynting vector, visit:

<u>brainly.com/question/17330899</u>

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1 year ago
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the answer is CaO because that's what my homework says is correct


7 0
3 years ago
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ehidna [41]
Hiiiii friends......
here is your answer.....


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now force lost by the machine
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