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 42 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
Wow, this really help

amynguyen1221

  • Member
  • Posts: 355
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Range of Motion of the Hip Joint, Hyperextension Range of Motion of the Hip Joint, Hyperextension
Proper Motion of Barnard’s Star Proper Motion of Barnard’s Star
Apply circular friction to muscles on the head using moderate pressure to the frontalis and ... Apply circular friction to muscles on the head using moderate pressure to the frontalis and ...
Mobilize neck in wavelike motion. Return the head to a neutral position facing upward. Apply ... Mobilize neck in wavelike motion. Return the head to a neutral position facing upward. Apply ...
Goniometer measure of joint range of motion Goniometer measure of joint range of motion
What is the contribution of studying wing spot in the field? What is the contribution of studying wing spot in the field?
Video: Phlebotomy

For a complete list of videos, visit our video library