Answers edited by HCH

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• A 2.50 kg wood block is pressed against a vertical wood wall by a force applied 34.9° to the horizontal. If the block is initially at rest, and μs=0.493, what force would you need to apply to begin moving the box up the wall?
  
• Question #31ddd
  
• Question #7c02d
  
• Question #063b3
  
• Alvin is 12 years older than Elga. The sum of their ages is 96. What is Elga's age?
  
• Find a vector which is perpendicular to both vector A and B, where A=2i+3j+4k B=i+2j+3k?
  
• How do you factor #2x^2-x-3#?
  
• Question #4f2b1
  
• A triangle has sides A, B, and C. The angle between sides A and B is #(pi)/2#. If side C has a length of #23 # and the angle between sides B and C is #pi/12#, what is the length of side A?