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3 years ago

Science If you want to find the energy quantum of light, you multiply the frequency of the radiation (v) by "h". What is "h"?

Physics

1 answer:

weqwewe [10]3 years ago

7 0

Answer:

"h" signifies Planck's constant

Explanation:

In the equation energy E = h X v

The "h" there signifies Planck's constant

Planck's constant is a value, that shows the rate at which the energy of a photon increases/decreases, as the frequency of its electromagnetic wave changes.

It was named after Max Planck who discovered this unique relationship between the energy of a light wave and its frequency.

Planck's constant, "h" is usually expressed in Joules second

Planck's constant = $6.62607015 \times 10^{-34} J.s$

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a gas is placed inside a very cold box . The gas molecules transfer heat to the walls of the box. Which best describes what happ

insens350 [35]

As the gas cools down, particle movement slows down with it, and so does the temperature of the gas. This is because the more heat or thermal energy a gas has, the faster the particles move. This is why absolute zero, or 0 degrees Kelvin is defined as zero particle movement, because it has zero energy.
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8 0

3 years ago

An air filter can remove dust particles from air but will reach capacity (saturation) at 50.0 mg. Of air containing 225 µg dust

zubka84 [21]

Answer:

Time to Reach Saturation = 0.0146 day

Explanation:

In order to solve this problem, we first need to calculate the dust filtered by the filter per cubic meter of air:

Filtered Dust per m³ = Dust Particles Entering per m³ - Dust Particles Leaving per m³

Filtered Dust per m³ = 225 μg/m³ - 15 μg/m³

Filtered Dust per m³ = 210 μg/m³ = 210 x 10⁻³ mg/m³

Now, we find volume flow rate of air through filter:

Volume Flow Rate of Air = (400 ft³/min)(0.3048 m/1 ft)³

Volume Flow Rate of Air = 11.33 m³/min

Now, we calculate rate of dust filtered:

Rate of Dust Filtered = (Filtered Dust per m³)(Volume Flow Rate of Dust)

Rate of Dust Filtered = (210 x 10⁻³ mg/m³)(11.33 m³/min)

Rate of Dust Filtered = 2.38 mg/min

Now, for the time required to reach saturation:

Time to Reach Saturation = (Saturation Capacity)/(Rate of Dust Filtered)

Time to Reach Saturation = (50 mg)/(2.38 mg/min)

Time to Reach Saturation = (21.02 min)(1 day/24 h)(1 h/60 min)

<u>Time to Reach Saturation = 0.0146 day</u>

3 0

3 years ago

Select all the correct locations on the image. Select the volume units that are greater than one liter.

dalvyx [7]

Answer:

N/A

Explanation:

No Image provided

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3 years ago

Suppose your study partner made this table to help you remember the differences between electromagnetic waves. What is incorrect

zheka24 [161]

Answer:

The order of the waves are all messed up, and everything else is backwards. The order of the waves should be Radio, Micro, Infrared, Visible, UV, X-ray, and then Gamma Rays

Explanation:

In the order of Radio, Micro, Infrared, Visible, UV, X-ray, and then Gamma Rays, the wave length goes from shorter waves to longer, this is often confused in the way that shorter waves have more waves within a certain amount of time. The amount of waves per second is the frequency.

6 0

3 years ago

Which of the following is an example of an opposing force?

katovenus [111]

Answer:

Explanation:

i dont really know

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3 years ago