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vlada-n [284]
3 years ago
15

Who is the scientist that gave us the photon as a way of describing light as a particle?

Physics
1 answer:
Montano1993 [528]3 years ago
4 0

Answer: Albert Einstein

Explanation:

Light can be considered as a wave or as particles, in this context Einstein proposed that light behaves like a stream of particles called <u>photons</u> with an energy, in order to correctly explain the photoelectric effect (in fact he won the 1921 Nobel Prize in Physics because of this explanation).

To uderstand it better:

The photoelectric effect is a fenomenom that consists in the emission of electrons that occurs when light falls on a metal surface under certain conditions.

This  can only be explained based on the corpuscular model of light, that is, light is quantized.

So, Einstein theorized light as a stream of energy packets called photons, this energy is able to pull an electron out of the crystalline lattice of the metal and communicate, in addition, a kinetic energy.

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A 1kg skateboard sits at the top of a ramp 20 fr off the ground . How much potential energy does it have ?
Finger [1]

Answer:

196J

Explanation:

Given parameters:

Mass of skateboard  = 1kg

Height off the ground  = 20m

Unknown:

Potential energy  = ?

Solution:

The potential energy is the energy due to the position of a body above the ground.

It is mathematically expressed as:

      Potential energy  = mass x acceleration due gravity x height

     Potential energy  = 1 x 9.8 x 20  = 196J

8 0
3 years ago
How did the volcano Mt. St. Helens form?
charle [14.2K]

Given what we know about volcanic formations, we can conclude that the Mt. St. Helens volcano was formed by the process described in option D, "Subduction  an oceanic continental convergent boundary caused a mountain  range to form and magma to come to the surface".

Mt. St. Helens is a volcano that falls under the category of a stratovolcano. Stratovolcanoes are volcanoes that commonly form at subduction zones. This process forms chains or clusters of mountains along the boundaries of tectonic plates, where oceanic crust is pulled under another type of crust. This process tends to form mountain ranges which contain volcanoes, such as:

  • Cascade Range (To which Mt. St. Helens belongs)
  • Los Andes
  • Rocky Mountains
  • Campania Mountain range

and so on.

To learn more visit:

brainly.com/question/3080956?referrer=searchResults

6 0
3 years ago
What is your weighted grade, if you have a 100% on homework and a 88% on tests. {homework is worth 40% of grade and tests are wo
Sphinxa [80]
You would have a 92.8, or a 93.
8 0
3 years ago
The direction of 0.04 T magnetic field is 30 degrees above a horizontal, a wire moves horizontally
JulijaS [17]

Answer:

Uauayayagagaga

Explanation:

agagagataggagagwghahahsgsgw

5 0
3 years ago
A student sees a newspaper ad for an apartment that has 1930 square feet (ft2) of floor space. How many square meters of area ar
german
In order to convert the ft^2 to m^2, we use the multiplier 0.09290304. 
Therefore your calculation would be: 0.09290304 · 1930 = 179.303m^2 (rounded to 3 d.p)
6 0
4 years ago
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