Author Question: When a magnetic field causes a charged particle to move in a circular path, the only quantity listed ... (Read 31 times)

renzo156 · **on:** Jul 28, 2018

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