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

Author Question: A proton falls through a potential drop of 400 V. How much is the change of potential energy of this ... (Read 62 times)

abern

  • Hero Member
  • *****
  • Posts: 533
on: Jul 29, 2018
A proton falls through a potential drop of 400 V. How much is the change of potential energy of this proton in falling through this potential drop?
 
  A) 6.4  10-16 J
  B) -6.4  10-16 J
  C) 17  10-16 J
  D) -4000 J
  E) 4000 J

Question 2

Which of the following is the correct equation for the momentum of a photon?
 
  A) p = (hc)/
  B) p = /c
  C) p = (hc)/f
  D) p = (hf)/c
  E) p = (h)/c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

CAPTAINAMERICA

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

D


abern

  • Member
  • Posts: 533
Reply 2 on: Jul 29, 2018
Excellent

bigcheese9

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Prolapsed uterus. (a) A prolapse is the abnormal drop of the uterus into the vagina, representing th Prolapsed uterus. (a) A prolapse is the abnormal drop of the uterus into the vagina, representing th
J. M. W. Turner, The Upper Falls of the Reichenbach. J. M. W. Turner, The Upper Falls of the Reichenbach.
Membrane potential of muscle cell Membrane potential of muscle cell
Energy Transfer Processes: Forced Convection Energy Transfer Processes: Forced Convection
Consistency and Change in Personality Over the Lifespan Consistency and Change in Personality Over the Lifespan
An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has ... An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has ...
Video: System organization - PPM system types (Somatic, Autonomic & Enteric) and Reflex arc types

For a complete list of videos, visit our video library