A particle (mass = 2.0 mg, charge = ?6.0 ?C) moves in the positive direction along the x axis with a velocity of 3.0 km/s. It enters a magnetic field of 
mT. What is the acceleration of the particle?
A.
m/s2B.
m/s2C.
m/s2D.
m/s2E.
m/s2Answer: A
You might also like to view...
Why does ice float on water?
a. Ice is hydrophobic and repels water. b. Water molecules have less mass the colder they get. c. Water molecules are spaced farther apart in ice than in liquid water. d. Vibrating electrons in liquid water push ice to the surface. e. Hydrogen bonds are weaker in ice.
Why can nothing (including light) escape a black hole?
A: Because of the gravitational redshift of light B: The required escape velocity exceeds the speed of light C: Because all material is tidally distorted and destroyed D: Because of the extreme electromagnetic forces E: Because the mass is greater than four solar masses
Interstellar reddening and extinction are due to ________ in the interstellar medium
A) rogue planets B) dust C) hydrogen gas D) helium gas E) ice crystals
The density of a certain metal solid is 6.5 × 10^3 kg/m3, and its Young's modulus is 10.0 × 10^10 N/m2 . What is the speed of sound in this metal?
a. 8.1E+1 m/s b. 1.2E+3 m/s c. 3.9E+3 m/s d. 1.2E+5 m/s e. 8.1E+1 m/s