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 8 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
:D TYSM

ghepp

  • Member
  • Posts: 361
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Solar Energy Input Varies with Latitude Solar Energy Input Varies with Latitude
Animation of the apparent retrograde motion of Mars in 2003 as seen from Earth Animation of the apparent retrograde motion of Mars in 2003 as seen from Earth
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
Explaining “Moving Continents”— The Theory of Plate Tectonics Explaining “Moving Continents”— The Theory of Plate Tectonics
Energy Transfer Processes: Forced Convection Energy Transfer Processes: Forced Convection
A container in the shape of a right circular cylinder with no top has surface area square feet. A container in the shape of a right circular cylinder with no top has surface area square feet.
Video: Bone tissue types - compact and spongy

For a complete list of videos, visit our video library