This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A laser pulse of duration 25 ms has a total energy of 1.4 J. If the wavelength of this radiation is ... (Read 30 times)

rl

  • Hero Member
  • *****
  • Posts: 579
on: Jul 29, 2018
A laser pulse of duration 25 ms has a total energy of 1.4 J. If the wavelength of this radiation is 567 nm, how many photons are emitted in one pulse? (c = 3.00  108 m/s, h = 6.626  10-34 J  s)
 
  A) 4.8  1019 B) 3.2  1017 C) 9.9  1019 D) 4.0  1018 E) 1.6  1017

Question 2

A negatively-charged particle moves across a constant uniform magnetic field that is perpendicular to the velocity of the particle. The magnetic force on this particle
 
  A) is in the same direction as the particle's velocity.
  B) causes the particle to slow down.
  C) causes the particle to speed up.
  D) is opposite the direction of the particle's velocity.
  E) causes the particle to accelerate.
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

gabrielle_lawrence

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


rl

  • Member
  • Posts: 579
Reply 2 on: Jul 29, 2018
Excellent

Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Pulse check with paitent's forearm at side Pulse check with paitent's forearm at side
How Axis Tilt Affects the Intensity of Solar Radiation How Axis Tilt Affects the Intensity of Solar Radiation
The Three Components of Energy Needs The Three Components of Energy Needs
Energy Resources: Fossil Fuels Energy Resources: Fossil Fuels
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum
The total weight of Peter, David and Henry is 123 kg, Peter is 15 kg heavier than David. David ... The total weight of Peter, David and Henry is 123 kg, Peter is 15 kg heavier than David. David ...
Video: HDL (high density lipoprotein)

For a complete list of videos, visit our video library