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
makkiz [27]
4 years ago
11

A laser is used in eye surgery to weld a detached retina back into place. The wavelength of the laser beam is 503 nm, while the

power is 1.4 W. During surgery, the laser beam is turned on for 0.070 s. During this time, how many photons are emitted by the laser?

Chemistry
1 answer:
V125BC [204]4 years ago
4 0

Answer:

Number of proton emmitted by laser=2.48*10^17proton

Explanation:

Energy is the ability to cause change; power is directly proportional to energy and its the rate energy is utilized.

Power=energy/time.

First we need to calculate the total energy used which is equal to the total power utilized.

E(total)= P( total) = 1.4W × 0.070 s =0.098J

CHECK THE ATTACHMENT FOR THE REMAINING DETAILED CALCULATION

You might be interested in
How does the mass of a planet or object effect its gravitational pull?
mrs_skeptik [129]
The gravitational "range" will be the same whether or not there is mass in the way if gravity will have an effect on an object for 100 miles but there's 50 miles of land in the way, it will still affect the 100 mile radius. so it really does if the range is 4000 miles and the planet is 2000 miles thick then the pull will be weaker than that of a planet 1000 miles thick bc you are closer to the source of gravity
6 0
4 years ago
(science) <br> hurry help!!<br><br> All commonly abused drugs are illegal.<br><br> true or false
Lubov Fominskaja [6]

Answer:

False

Explanation:

Many abused drugs are prescription drugs.

8 0
3 years ago
Read 2 more answers
Please help with what equation and what numbers to plug in, I can do the rest.
ohaa [14]
20 protons it takes for the answer
8 0
4 years ago
The number of protons plus the number of neutrons in an atom is called its 7 number. for carbon-12, this number is
emmasim [6.3K]
The mass of Carbon-12 is 12.
8 0
4 years ago
Explain what happens to the energy in a wave when a sound is louder.
liraira [26]
Greater amplitude waves have more energy and greater intensity, so they sound louder. ... The same amount of energy is spread over a greater area, so the intensity and loudness of the sound is less. This explains why even loud sounds fade away as you move farther from the source.
8 0
3 years ago
Other questions:
  • What acceleration does the force of earths gravity produce?
    9·2 answers
  • Would you expect the wavelength of maximum absorbance for [Cu(NH3)4]2+ to be greater than or less than the wavelength of maximum
    13·1 answer
  • Regalo puntos :v vengan a mi prros​
    8·2 answers
  • What is the pH of 9.01 x 10^-4 M Mg(OH)2 <br><br><br> What is the pH of 2.33 x 10^-2M of NH4OH
    11·1 answer
  • NASA helps fund science education
    7·2 answers
  • The nucleus contains:
    14·2 answers
  • ZnH2 + Cl2 → 2HCI + Zn
    14·1 answer
  • A portable hydrogen generator utilizes the reaction
    6·1 answer
  • Explain natural fiber extraction
    9·2 answers
  • A ball is dropped from a height of 20 feet onto a trampoline. When it hits the trampoline, it creates a 2-foot depression in the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!