Questions asked by HCH

• Back to user's profile
• What is the solution to the differential equation: #(x^2+y+y^2)dx=xdy# ?
  
• Is there a case where #N#, normal force = #f#, frictional force?? When a nail is hit into an object?
  
• How to proof mass moment of inertia formula for a hoop with axis across the diameter?
  
• Vectors with head pointing to the left?
  
• Minimum frictional force when F=0??