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

Author Question: A proton with initial kinetic energy E is moving in circular motion in a uniform magnetic field. ... (Read 55 times)

cmoore54

  • Hero Member
  • *****
  • Posts: 568
on: Jul 28, 2018
A proton with initial kinetic energy E is moving in circular motion in a uniform magnetic field. When it has completed one fourth of a revolution, what is its kinetic energy?
 a. 1.4 E
  c. E
  b. 0.71 E
  d. The value is not given.

Question 2

Water pressurized to 4  105 Pa is flowing at 5.0 m/s in a pipe which contracts to 1/3 of its former area. What are the pressure and speed of the water after the contraction? (density of water = 1  103 kg/m3)
 a. 2  105 Pa, 15 m/s
  c. 3  105 Pa, 15 m/s
  b. 3  105 Pa, 10 m/s
  d. 4  105 Pa, 1.5 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

huda

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


cmoore54

  • Member
  • Posts: 568
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

Kedrick2014

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

The Knee Joint: Anatomical Structures Influencing Motion The Knee Joint: Anatomical Structures Influencing Motion
Transferring Sterile Solutions onto a Sterile Field Transferring Sterile Solutions onto a Sterile Field
Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change
Kinetic Energy Kinetic Energy
Circular friction to the broad iliotibial band. The heel of the hand is used to create friction ... Circular friction to the broad iliotibial band. The heel of the hand is used to create friction ...
Using small, circular strokes, exfoliate the client’s neck and back. Using small, circular strokes, exfoliate the client’s neck and back.
Video: Embryonic development - Week 3

For a complete list of videos, visit our video library