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
Kamila [148]
3 years ago
9

Calculate the energy in electron volts of X-rays that have a frequency of 3.00 x 100 Hz.

Physics
1 answer:
inn [45]3 years ago
8 0

Answer:

E = 124 eV

Explanation:

Given,

The frequency of the X-rays, ν = 3.0 x 10¹⁰ Hz

The formula for calculating the energy of the electromagnetic waves of a single photon of having frequency 'ν' is given by the relation

                                    E = hν      joules

Where,

                       h - Planck's constant (6.626 x 10⁻³⁴  Js)

Substituting the values in the above equation

                                    E = 6.626 x 10⁻³⁴  Js   x  3.0 x 10¹⁰ Hz

                                       = 1.9878 x 10⁻²³  J

Converting it into eV

                                    E = 1.9878 x 10⁻²³  x 6.242 x 10¹⁸    eV

                                       = 124 eV

Therefore, the energy in electron volts of X-rays is, E = 124 eV

You might be interested in
Fill out the blanks, this is for science!
dusya [7]
Faster and higher I believe.
8 0
3 years ago
Read 2 more answers
Object 1 and 2 attract each other with a electrostatic force of 36.0 units. If the charge of object 1 is changed to four times t
Mrac [35]
The answer would be 6
8 0
3 years ago
What is the equivalent resistance of the circuit?
raketka [301]

Answer:

I feel it would be D. 120.00 I'm really not sure

Explanation:

8 0
3 years ago
How many times farther is Proxima Centauri from the sun than is earth from the sun
Aleks04 [339]

Answer:

Of the three stars in the system, the dimmest - called Proxima Centauri - is actually the nearest star to the Sun. The two bright stars, called Alpha Centauri A and B form a close binary system; they are separated by only 23 times the Earth - Sun distance.

5 0
3 years ago
Read 2 more answers
An ice boat is coasting along a frozen lake. Friction between the ice and the boat is negligible, and so is air resistance. Noth
zhannawk [14.2K]

Answer:

(A) No

(B) Speed decreases

Explanation:

(A) since there is nothing propelling the boat and the friction between the ice and the boat and also air resistance is negligible the net force of the system in the horizontal direction is zero and hence there is no change in the horizontal momentum of the boat.

(B) Since the person had not velocity in the horizontal direction before landing on the boat but now has one after landing on the boat, the speed of the boat will decrease because the momentum has to be conserved (remember there is no change in it).

6 0
3 years ago
Other questions:
  • A 50 kilogram woman wearing a seatbelt is traveling in a car that is moving with a velocity of +10 meters per second. In an emer
    8·1 answer
  • The electrical charge of an atom as a whole is?
    12·2 answers
  • True or false: Equilibrium is the continual change from product to reactant and back.
    10·1 answer
  • At an equilibrium position of a pendulum, the <br> is at a maximum.
    15·1 answer
  • In what phase change do molecules completely overcome the intermolecular
    9·1 answer
  • Why do you think that this type of fossil is called a print fossil?
    10·1 answer
  • Steel beams are used for load bearing supports in a building. Each beam is 4.0 m long with a cross-sectional area of 7.5 10-3 m2
    10·1 answer
  • How do density, pressure, and temperature change as the depth of Earth increases? Question 5 options: Density, pressure, and tem
    9·1 answer
  • Myron was trying to light a match. The first time he struck the match, the match did not light. The second time he tried, the ma
    10·2 answers
  • If a projectile is launched at a velocity of 20 m/s, is it in equilibrium?<br> Why or why not?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!