A proton moving eastward with a velocity of 5.0 km/s enters a ...

[washai]

A proton moving eastward with a velocity of 5.0 km/s enters a magnetic field of 0.20 T pointing northward. What are the magnitude and direction of the force that the magnetic field exerts on the proton? (e = 1.60  10-19 C)
 
  A) 0 N
  B) 1.6  10-16 N upwards
  C) 1.6  10-16 N downwards
  D) 1.1  10-16 N eastwards
  E) 4.4  10-16 N westwards

Question 2

A cylinder contains 1.50 moles of an ideal monatomic gas that is initially at a temperature of 317 K. If the gas gains 2730 J of heat and performs 780 J of work, what is its final temperature? (R = 8.31 J/mol  K)
 
  A) 359 K
  B) 421 K
  C) 526 K
  D) 687 K
  E) 756 K

[spencer.martell]

Answer to Question 1

B

Answer to Question 2

B