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
dalvyx [7]
3 years ago
13

If the electron is initially in the ground level, E1=0.625E[infinity]E1=0.625E[infinity], and absorbs a photon, what maximum wav

elength can the photon have and still liberate the electron from the well?
Physics
1 answer:
tekilochka [14]3 years ago
4 0

Answer:

 λ = 3.1824 10-25 m

Explanation:

To release the electron from the power well the absorbed photon electro must be greater than or equal to the energy of the electron in the power well

           

The photon energy is E_photon = 0.625 J

The speed of light is

       c = λ f

         

Let's use Planck's equation

        E = h f

             

We substitute

       E = h c / λ

        λ = h c / E

        λ = 6.63 10-34 3 108 / 0.625

         λ = 3.1824 10-25 m

You might be interested in
The horizon moon appears to shrink in size if it is viewed through a narrow tube that eliminates the perception of distance cues
VladimirAG [237]

Answer: Context Effect

Explanation:

<u>Context effect</u> refers to <u>the influence that external factors (the environment, for example) have on the perception of a stimulus</u>. This is a well-known aspect of cognitive psychology.

In fact, the situation stated in this question is a good example: It is not the same to observe the Moon with a naked eye and taking into account factors such as cloudiness, dust and whatever is surrounding this view that have effects on the observation; than observing this same Moon with a narrow tube in which our eyes focus only on the lunar surface, without taking into account the rest that surrounds that horizon.

6 0
4 years ago
During a storm, the power went out at Bailey’s house. She had no electricity. What could she use as an alternate form of electri
almond37 [142]
A battery operated lamp because battery's don't use your own electricity. They come with electricity already.
5 0
3 years ago
An athlete walks 8 meters East , 2 meters South, 8 meters West, and finally 2 meters North. What is the total distance traveled?
serg [7]

Explanation:

20 meters is travelled by him

please mark me as brainliest

6 0
2 years ago
Read 2 more answers
Dorji weight 1500n.if the total surface area of soles of his feet is 0.5 m2 what is the pressure exerted by his body on the grou
Fantom [35]

Answer:

P = 3000 Pa

Explanation:

Weight of Dorji, W = F = mg = 1500 N

The total surface area of soles of his feet is 0.5 m²

We need to find the pressure exerted by his body on the ground​. The pressure is equal to the force acting per unit area. So,

P=\dfrac{1500\ N}{0.5\ m^2}\\\\=3000\ Pa

So, the pressure exerted by his body on the ground​ is 3000 Pa.

3 0
3 years ago
Vector A→, having magnitude 2.5m, pointing 37∘ south of east and vector B→ having magnitude 3.5m, pointing 20∘ north of east are
ahrayia [7]

Answer:

Magnitude of the resultant vector is R = 6.81 m

Explanation:

Given :

Vector A having magnitude of 2.5 m

Vector A having direction 37 degree south of east.

Vector B having magnitude of 3.5 m

Vector B having direction 20 degree north of east.

Therefore, the angle between the two vectors is, θ = 37+20 = 57 degree

So, the resultant of the two vectors are given by

$ R = \sqrt{A^2+B^2+2AB \cos \theta}$

$ R = \sqrt{2.5^2+3.5^2+2(2.5)(3.5) \cos 57}$

$ R = \sqrt{6.25+12.25+17.5 \times 0.54}$

$ R = \sqrt{46.45}$

R = 6.81 m

3 0
3 years ago
Other questions:
  • What is the velocity of a car that traveled a total of 75 kilometers north in 1.5 hours?
    9·1 answer
  • What can you do to realign your biological clock with the external world when you work a rotating shift?
    12·1 answer
  • If you could see the electric field coming off a proton you would notice that electric field lines are what?
    12·1 answer
  • Rubbing two objects together may cause large number of electrons to be transferred from one object to the other. True or False
    11·1 answer
  • Consider this line graph that represents speed in meters/second. The X-axis is labelled in seconds; the Y-axis is labelled in me
    7·2 answers
  • A long, thin solenoid has 155 turns per meter and radius 1 m. The current in the solenoid is increasing at a uniform rate of 28
    8·1 answer
  • A hockey player has an acceleration of -3.1 m/s2. How long does it take him to come to a complete stop from a speed of 13 m/s?
    13·2 answers
  • Please help :)<br><br><br> Microwaves are transmitted by ....... ?
    11·1 answer
  • Energy and work are measured in
    14·2 answers
  • g A 24-gg bullet strikes and becomes embedded in a 1.50-kgkg block of wood placed on a horizontal surface just in front of the g
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!