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
Tju [1.3M]
3 years ago
14

Calculate the wavelength λ and the frequency f of the photons that have an energy of E photon = 2.32 × 10 − 19 J. Ephoton=2.32×1

0−19 J. Use c = 3.00 × 10 8 m/s c=3.00×108 m/s for the speed of light in a vacuum.
Physics
1 answer:
klasskru [66]3 years ago
4 0

Answer:

Frequency =3.5×10^14hertz

Wavelength = 8.6×20^-7m

Explanation:

Energy of photon is expressed as;

E = hf where;

h is the Planck constant

f is the frequency of the photons

From the formula f = E/h

Given E = 2.32 × 10^ − 19 J

h = 6.63×10^-34Js

f = 2.32×10^-19/6.63×10^-34

f = 0.35×10^(-19+34)

f = 0.35 × 10^15

f = 3.5×10^14hertz

To get the wavelength, we will use the relationship:

f = c/λ

λ = c/f

Given c = 3×10^8m/s

f = 3.5×10^14hertz

λ = 3×10^8/3.5×10^14

λ = 0.86×10^-6m

λ = 8.6×20^-7m

You might be interested in
Something has a mass of 40 kg and a velocity of 1 m/s
lesantik [10]
  • m=40kg
  • v=1m/s

\\ \sf\Rrightarrow K.E=\dfrac{1}{2}mv^2

\\ \sf\Rrightarrow K.E=\dfrac{1}{2}(40)(1)^2

\\ \sf\Rrightarrow K.E=20J

<h3>Part 2:-</h3>
  • m=80kg

\\ \sf\Rrightarrow K.E=\dfrac{1}{2}(80)(1)^2

\\ \sf\Rrightarrow K.E=40J

  • Yes
6 0
3 years ago
a car having a mass of 1,520 kilograms maneuvers around a curve at a velocity of 24.0 m/s. The radius of the curve is 455 meters
Korvikt [17]
When an object is moving around in circles, there are two forces that keeps it in its circular orbit. These are the centripetal and the centrifugal forces. They are equal in magnitude, but they differ in the direction. The centripetal force is the force that pulls the object toward the circle's center. The centrifugal force is the force that pushed the object away from the circle's center. 

Applying Newton's Second Law of Motions, any force is equal to its mass times its acceleration. For an object moving in circles, the force here is centrifugal or centripetal force, and the acceleration is the centripetal or centrifugal acceleration which is equal to

a = v²/r,
where v is the linear or tangential velocity
r is the radius of the circle

Applying this to Newton's Second Law of Motion,

F = mv²/r
Substituting the values,
F = (1,520 kg)(24 m/s)²/455 m
F = 1,924.22 N
6 0
4 years ago
Read 2 more answers
What would you like to see if you were visiting Mars?
Olegator [25]

Answer:

I would like aliens if they exist

Explanation:

5 0
4 years ago
Calcula la densidad del hierro , si 393 g ocupan un volumen de 50 ml
eimsori [14]
Density is mass over volume: d=m/v
d = 393/50 => d = 7.86 g/ml
7 0
3 years ago
Which of the following choices is the best example of potential energy?
jekas [21]

Answer:

A basketball sitting still in a players hands

Explanation:

The other 3 answers have the ball <u>in motion</u> (going towards the basket, bouncing, and rolling) so that would be <u>kinetic energy</u>.

When the basketball is sitting in the player's hands, it has the potential to be in motion.

8 0
3 years ago
Other questions:
  • The basic concept of how a simple motor works is explained by which statement?
    13·2 answers
  • A miler covers one mile in training at a 6 minute pace ( 4 laps on a 1/4 mile track ). What is his speed in mph. And in metric u
    11·1 answer
  • The floor of the room is cooler than the ceiling.explain this based on air currents in the room.
    8·1 answer
  • What color will a star be with a surface temperature of 5000–6000 K?
    15·2 answers
  • What is the centripetal force on a vehicle rounding a circular curve with a radius of 80 m at a constant speed of 90 km/h if the
    14·1 answer
  • What is the electric flux φ through each of the six faces of the cube?
    13·1 answer
  • You find it takes 200 N of horizontal force tomove an unloaded pickup truck along a level road at a speed of2.4 m/s. You then lo
    11·1 answer
  • What is the minimum allowed length for the runway?
    9·1 answer
  • The human body stores chemical energy from digested food. Some of the chemical energy is converted into mechanical energy when t
    12·2 answers
  • A student rides her bike to school. Her school is 5 miles from home. She travels at an average rate of 15 miles per hour. How mu
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!