1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lilit [14]
3 years ago
9

Where does an electron in a metal get enough energy to escape from its atom as hypothesized in the photoelectric

Physics
2 answers:
Svetlanka [38]3 years ago
8 0

When energy from incident photons is transferred to the electrons, an electron in a metal get enough energy to escape from its atom as hypothesized in the photoelectric  effect.

Answer: Option D

<u>Explanation:</u>

At the point, when the light incident on a metal, electrons can be shot out from the outside of the metal in a wonder known as the photoelectric effect. This procedure is additionally frequently alluded to as photo emission, and the electrons that are shot out from the metal are called photo electrons. Regarding their conduct and their properties, photo electrons are the same as different electrons.

The prefix, photograph, basically discloses to us that the electrons have been shot out from a metal surface by incident light. In the light's wave model, Scientists predicted that expanding light amplitude increases the kinetic energy of radiated photo electrons while the increase in the intensity would increase in the estimated current.

Elina [12.6K]3 years ago
5 0

Answer:

D. Energy from incident photons is transferred to the electrons.

Explanation:

You might be interested in
The metric unit of force is the
grandymaker [24]

The unit of force is the 'Newton'.

1 newton is the force that accelerates 1 kilogram of mass
at the rate of 1 meter per second-squared.

                   1 N  =  1 kg-m/s²

-- A force of 1 pound is about  4.448 newtons.

-- A force of 1 newton is about  3.6 ounces.

6 0
3 years ago
Read 2 more answers
What is the insertion for the brachialis
Alona [7]

Coronoid process of the ulna

6 0
2 years ago
on the surface of theearth ,the weight of a boy is 400N but on a mountainpeak his weight is 360N,Calculatethe value of ''g' on t
andreyandreev [35.5K]

The value of g at sea level is 9.81 ms^-2.

The boy's mass is constant wherever he is in the universe but his weight will depend on the strength gravity where he is.

By proportion its value on the mountain peak  is (360 /400) * 9.81

= 0.9 * 9.81 = 8.83  ms^-2  to nearest hundredth,  (answer).

7 0
3 years ago
5. Which of the following is NOT a course goal?
kifflom [539]

Answer:

for students to do nothing

Explanation:

because doing nothing is not a course goal

3 0
3 years ago
One uniform ladder of mass 30 kg and 10 m long rests against a frictionless vertical wall and makes an angle of 60o with the flo
yuradex [85]

Answer:

   μ = 0.37

Explanation:

For this exercise we must use the translational and rotational equilibrium equations.

We set our reference system at the highest point of the ladder where it touches the vertical wall. We assume that counterclockwise rotation is positive

let's write the rotational equilibrium

           W₁  x/2 + W₂ x₂ - fr y = 0

where W₁ is the weight of the mass ladder m₁ = 30kg, W₂ is the weight of the man 700 N, let's use trigonometry to find the distances

             cos 60 = x / L

where L is the length of the ladder

              x = L cos 60

            sin 60 = y / L

           y = L sin60

the horizontal distance of man is

            cos 60 = x2 / 7.0

            x2 = 7 cos 60

we substitute

         m₁ g L cos 60/2 + W₂ 7 cos 60 - fr L sin60 = 0

         fr = (m1 g L cos 60/2 + W2 7 cos 60) / L sin 60

let's calculate

         fr = (30 9.8 10 cos 60 2 + 700 7 cos 60) / (10 sin 60)

         fr = (735 + 2450) / 8.66

         fr = 367.78 N

the friction force has the expression

         fr = μ N

write the translational equilibrium equation

         N - W₁ -W₂ = 0

         N = m₁ g + W₂

         N = 30 9.8 + 700

         N = 994 N

we clear the friction force from the eucacion

        μ = fr / N

        μ = 367.78 / 994

        μ = 0.37

3 0
3 years ago
Other questions:
  • Which law explains why a book flying in the air hitting a person would hurt more than a feather hitting a person?
    6·2 answers
  • This is a model of a Neon atom. How likely is it that this atom would want to bond with another atom? Neon atom Question 5 optio
    7·1 answer
  • If the work function of a material is such that red light of wavelength 700 nm just barely initiates the photoelectric effect, w
    9·1 answer
  • Gel electrophoresis is a technique used to separate nucleic acids by their _______.
    15·1 answer
  • Two spectators at a soccer game in Montjuic Stadium see, and a moment later hear, the ball being kicked on the playing field. Th
    11·1 answer
  • Speed is the ratio of the distance an object moves to
    15·1 answer
  • Consider a Carnot cycle executed in a closed system with 0.6 kg of air. The temperature limits of the cycle are 300 and 1100 K,
    11·1 answer
  • How are dams made do they just freeze time?
    7·2 answers
  • Why is it generally easy to filter out particles in suspension?
    10·1 answer
  • 11. A dog sits 2.50m from the center of a merry-go-round and revolves at a tangential
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!