Circular Motion of Charges: A charged particle of mass 0.0040 kg is subjected to a 4.0-T magnetic field which acts at a right angle to its motion. If the particle moves in a circle of radius 0.10 m at a speed of 2.0 m/s, what is the magnitude of the charge on the particle?
A. 0.020 C
B. 50 C
C. 0.00040 C
D. 2500 C
Answer: A
You might also like to view...
The following images show six objects in our solar system. Rank the objects from left to right based on their average distance from the Sun, from farthest to closest. (Not to scale.)
The interstellar clouds called molecular clouds are ________
A) clouds that are made mostly of complex molecules such as carbon dioxide and sulfur dioxide B) the clouds in which elements such as carbon, nitrogen, and oxygen are made C) the cool clouds in which stars form D) the hot clouds of gas expelled by dying stars
Compared with the energy produced by fissioning a gram of uranium, the energy produced by fusing a gram of deuterium is
A) more. B) less. C) the same.
A radioactive isotope of atomic number Z emits an alpha particle, and the daughter nucleus then emits a beta-minus particle. What is the atomic number of the resulting nucleus?
A) Z -1 B) Z + 1 C) Z - 2 D) Z - 3