Given two vectors, M = 5.00 i + 4.00 j and N = 3.00 i − 7.00 j, find the vector product M × N (in unit vectors). What is the magnitude of the vector product? 

• A. Magnitude = 23
  Direction = +z
• B. Magnitude = 47
  Direction = -z
• C. Magnitude = 47
  Direction = +z
• D. Magnitude = 23
  Direction = -z

Answer: (B)