PHYSICS HIGH SCHOOL

What is the equation for the energy of a photon? a) E = mc^2 b) E = hf c) E = 1/2 mv^2 d) E = GmM/r

Answers

Answer 1

Answer:

Answer:

$E = h\, f$ , where $h$ is Planck's Constant and $f$ is the frequency of this photon.

Explanation:

The energy $E$ of a photon is proportional to its frequency. This relationship is known as Planck's Relation:

$E = h\, f$ ,

Where:

$h \approx 6.626 * 10^(-34)\; {\rm J \cdot s}$ is Planck's Constant, and
$f$ is the frequency of this photon.

Related Questions

Calculate (A⃗ ×B⃗ )⋅C⃗ for the three vectors A⃗ with magnitude A = 4.86 and angle θA = 23.5 ∘ measured in the sense from the +x - axis toward the +y - axis, B⃗ with B = 4.02 and θB = 60.1 ∘, and C⃗ with magnitude C = 6.02 and in the +z - direction. Vectors A⃗ and B⃗ are in the xy-plane.
During Mr. Nye's science class, students were expected to identify various substances using physical properties they could easily measure. Mr. Nye gave each of the five groups a green, metal cube. The students had to identify what metal the cube was made of. The length of each side was 3.0 cm and the mass was 270 grams. What property should Mr. Nye's science students use to identify the metal in the cubes? A) color B) density C) mass D) volume
Who will give me answer I will give you brainliest.....
two objects were lifted by machine one object had a massive 2 kg it was lifted at a speed of 2 m/s the other had a massive 4 kg and was lifted at a rate of three meters per second which object has more kinetic energy
The general consensus is that our policymakers do not know what they are doing and are managing our economy ineffectively

Observations show that interstellar clouds can have almost any shape and, if they are rotating at all, their rotation is not perceptible. however, as shown in the video, the nebular theory predicts that a cloud will rotate rapidly once it shrinks to a small size. what physical law explains why a cloud will rotate rapidly as it collapses?

Answers

The law of conservation of angular momentum holds because the cloud is collapsing only due to gravity.Because angular momentum is proportional to velocity times radius, keeping this product constant requires that the velocity of rotation increase when the cloud radius decreases. Hope it helps.

A material that provides little or no resistance to the flow of electric current is called a(an) A. circuit / B. conductor / C. insulator / D. resistor.

Answers

The correct answer is (b.) conductor. A material that provides little or no resistance to the flow of electric current is called a conductor. A conductor is a known material that is used for a smooth flow of current with any barrier in one or more directions.

The correct answer is B) Conductor

A conductor is a material that allows for the flow of electrical charge (electrical current). This type of material provides little or no resistance to the flow of electric current. This is due to the fact that these type of materials have free electrons which conduct the flow of electrical current in any direction.

Different types of conductors have different resistances. Some types of materials are good conductors whereas some are not so good.

Some common conductors are Copper, gold, silver and aluminium.

An insulator is the an object of type of material which have a strong resistance to the flow of electric current. Some common insulators are glass, wood and plastic.

Ferns are located in which zone of deciduous forests?a. tree stratum
b. small tree and sapling
c. shrub
d. herb

Answers

A fern is a vascular plant that have neither seeds nor flowers. Fern spieces live in the variety of habitats: shady forests, acid wetlands and tropical areas. Tree stratum zone contains the tallest trees. The small tree zone is lower than tree stratum zone. The shurb zone contains schurbs which grow the food for animals. Finally, the herb layer is made up of wildflowers and ferns. Answer: D ) Herb zone.

D. Herb
I hope that helps! :)

What is the Average Depth of the ocean?

Answers

On average, the ocean is 2.3 miles deep. Hope this helps!

Answer:

The average depth of the ocean is about 12,100 feet.

Explanation:

Which explanation of the solar system best fits the observations of the planets and how they orbit the sun? (Points : 3)       The gravity of a large, massive star passing the sun ripped off blobs of material from it that formed the planets.The planets formed at the center of a collapsing spinning cloud of gas and dust.
       The sun and planets formed from a collapsing spinning cloud of gas and dust.
       A comet hit the sun and sent off fragments that became the planets.

Answers

From those choices, the best is the third one. it relates to why the sun and almost everything else in the solar system spins in the same direction, and also why the abundance of various elements in the planets is so different from what it is in the sun.

the atomic mass of potassium is 39. if its atomic number is 9, it has how many neutrons within each potassium atom?

Answers

Atomic number is actually 19 as it has 19 protons. To make up the mass number of 39 it needs 20 more nucleons, these must come in the form of neutrons so it has 20 neutrons.

Other Questions

What roles do exchange particles play in an interaction?

Vector addition is used when motion involves

The temperature scale which starts at absolute zero is the _____.Centigrade scaleCelsius scaleFahrenheit scaleKelvin scale

Define escape velocity?