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

Author Question: How much work is needed to carry an electron from the positive terminal to the negative terminal of ... (Read 76 times)

danielfitts88

  • Hero Member
  • *****
  • Posts: 535
on: Jul 29, 2018
How much work is needed to carry an electron from the positive terminal to the negative terminal of a 9.0-V battery. (e = 1.60  10-19 C , melectron = 9.11  10-31 kg)
 
  A) 1.6  10-19 J
  B) 17  10-19 J
  C) 14.4  10-19 J/C
  D) 9.0 J
  E) 14.4  10-19 J

Question 2

A hydrogen atom is excited to the n = 10 stated. It then decays to the n = 4 state by emitting a photon which is detected in a photographic plate. What is the frequency of the detected photon? The lowest level energy state of hydrogen is -13.6 eV.
 
  (h = 6.626  10-34 J  s, 1 eV = 1.60  10-19 J)
  A) 4.05  1014 Hz
  B) 1.73  1014 Hz
  C) 1.27  1014 Hz
  D) 0.865  1014 Hz
  E) 3.46  1014 Hz
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

JaynaD87

  • Sr. Member
  • ****
  • Posts: 368
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 55% of students answer this correctly


danielfitts88

  • Member
  • Posts: 535
Reply 2 on: Jul 29, 2018
:D TYSM

peter

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Electron Microscope Images of a Diatom Electron Microscope Images of a Diatom
Eero Saarinen, TWA Terminal, John F. Kennedy International Airport, interior, New York. Eero Saarinen, TWA Terminal, John F. Kennedy International Airport, interior, New York.
Control of Homeostasis: Positive Feedback Control of Homeostasis: Positive Feedback
Negative reciprocal Negative reciprocal
Transmission electron microscope Transmission electron microscope
Pineapples carry harmful insect shell insects, safe to eat? Pineapples carry harmful insect shell insects, safe to eat?
Video: Role of complement proteins

For a complete list of videos, visit our video library