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
kozerog [31]
3 years ago
8

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 × 102 nm?

Physics
1 answer:
konstantin123 [22]3 years ago
4 0
<span>The energy of a single photon is given by E = hc/lambda, where h is Planck's constant, c is the speed of light, and lambda is the wavelength. Plugging the values in gives E = 6.63E-34 x 3.00E8 / 700E-9 = 2.84E-19 Joules Now one mole of substance is equivalent to 6.02E23 particles, so one mole of these photons will be: 2.84E-19 x 6.02E23 = 1.71E5 Joules</span>
You might be interested in
A circle is 360°. What percentage of a circle is 90°?
kykrilka [37]

Answer:

360 ÷ 4 = 90

Example

A 360° circle is cut into 4 peaces in the form of + or × . It's one side is called 90°

6 0
3 years ago
The magnetic field in a solenoid is . A circular wire of radius 8 cm is concentric with a solenoid of radius 2 cm and length d =
defon

Answer:

6.03 mV

Explanation:

length of solenoid, L = 2 m, N = 12000, di/dt = 40 A/s,

Magnetic field due to solenoid

B = μ0 n i = μ0 N i / L

dB/dt = μ0 N / L x di / dt

dB /dt = (4 x 3.14 x 10^-7 x 12000 x 40) / 2 = 0.3 T/s

Induced emf, e = rate of change of magnetic flux

e = dΦ / dt = A x dB / dt

e = 3.14 x 0.08 x 0.08 x 0.3 = 6.03 x 10^-3 V = 6.03 mV

7 0
2 years ago
How should parents communicate with children?
Harman [31]
D. Get down to the child’s level to talk
8 0
3 years ago
If you double the period of a pendulum. what happens to its length?​
victus00 [196]

Answer:

Time period is directly proportional to the length so if the length is doubled the time period is doubled

hope it is helpful....

5 0
3 years ago
Read 2 more answers
Which of the following items is an example of a symbol Bernice bobs her hair
chubhunter [2.5K]

what? Is there a picture you can show us with this question

6 0
3 years ago
Other questions:
  • Which of these is an environmental change that occurs rapidly?
    9·1 answer
  • The Milky Way is our Galax. Where are we located in Milky Way?​
    15·1 answer
  • A car accelerates from rest to 34 m/s in just 12 seconds. what is is acceleration?
    9·2 answers
  • g In a certain binary-star system, each star has the same mass which is 8.2 times of that of the Sun, and they revolve about the
    5·1 answer
  • A car moves at a constant speed of 10 m/s. If the car doesn't accelerate during the next 40 s how far will it go?
    9·1 answer
  • What component of a longitudinal sound wave is analogous to a trough of a transverse wave?
    13·1 answer
  • A heat engine does 200 j of work per cycle while exhausting 600 j of heat to the cold reservoir. what is the engine's thermal ef
    9·1 answer
  • What are the chances that radio transmissions from Earth or messages sent on distant space probes will ever be received by livin
    14·1 answer
  • Explain how an event in one area could affect another area
    10·1 answer
  • Damian is texting while driving and ends up slamming into the back end of the car in front of him, which then strikes the car in
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!