When a magnetic field causes a charged particle to move in a ...

[renzo156]

When a magnetic field causes a charged particle to move in a circular path, the only quantity listed below which the magnetic force changes significantly as the particle goes around in a circle is the particle's:
 a. energy.
  c. momentum.
  b. time to go around the circle once.
  d. radius for the circle.

Question 2

Water (density = 1  103 kg/m3) flows at 10 m/s through a pipe with radius 0.040 m. The pipe goes up to the second floor of the building, 2.0 m higher, and the pressure remains unchanged. What is the radius of the pipe on the second floor?
 a. 0.045 m
  c. 0.015 m
  b. 0.034 m
  d. 0.012 m

[komodo7]

Answer to Question 1

C

Answer to Question 2

A

[renzo156]

Excellent

[pratush dev]

Gracias!