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

Author Question: A conducting sphere of radius 20.0 cm carries an excess charge of +15.0 C, and no other charges are ... (Read 76 times)

londonang

  • Hero Member
  • *****
  • Posts: 540
on: Jul 29, 2018
A conducting sphere of radius 20.0 cm carries an excess charge of +15.0 C, and no other charges are present. (k = 1/40 = 8.99  109 N  m2/C2 )
 
  The potential (relative to infinity) due to this sphere at a point 12.0 cm from its center is closest to
  A) zero.
  B) 674 kV.
  C) 1130 kV.
  D) 3380 kV.
  E) 9380 kV.

Question 2

How fast must a hydrogen atom be traveling for its kinetic energy to be just enough to excite the ground-state atom to its first excited state in a collision? (1 eV = 1.60  10-19 J, mH  mproton = 1.67  10-27 kg)
 
  A) 44.2 km/s
  B) 21.7 km/s
  C) 66.5 km/s
  D) 113 km/s
  E) 51.0 km/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

31809pancho

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

A


londonang

  • Member
  • Posts: 540
Reply 2 on: Jul 29, 2018
Excellent

CAPTAINAMERICA

  • Member
  • Posts: 325
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Defibrillator. Defibrillators are devices that supply a voltage charge to the heart in the hope of r Defibrillator. Defibrillators are devices that supply a voltage charge to the heart in the hope of r
Excess heat capacity chart Excess heat capacity chart
1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ... 1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ...
In the drawing of acetaldehyde, CH3CHO, the largest partial negative charge (-) occurs on In the drawing of acetaldehyde, CH3CHO, the largest partial negative charge (-) occurs on
A closed loop conductor that forms a circle with a radius of is located in a uniform but ... A closed loop conductor that forms a circle with a radius of is located in a uniform but ...
A uniform solid cylinder of radius R and a thin uniform spherical shell of radius R both roll ... A uniform solid cylinder of radius R and a thin uniform spherical shell of radius R both roll ...
Video: Evolutionary tree of life Animation

For a complete list of videos, visit our video library