







Why is lbs the abbreviation for pounds? 
19961003 

From Nancy Mutdosch: What does lbs stand for? Why is it the abbreviation for pounds? Answered by Chris Fisher. 





An array of tulip bulbs 
20080906 

From Mary: My daughter had this problem on one of her tests. She forgot to ask her teacher what she did wrong. I understand she did not answer the question
in full, but what she did answer I feel is right.
Please explain to me
the correct answer. Thank you. Mary Answered by Harley Weston. 





Probability 
20070507 

From Danielle: A box contains 3 defective lights and 5 nondefective lights. The lights are tested one at a time without replacement. What is the probability that the 3 defective bulbs will be found in the first 3 tests?
is it 1/56 by chance? Answered by Stephen La Rocque. 





Newton meters and ftlbs 
20061104 

From Michael: What is the correlation between Newton meters and ftlbs of torque? If an engine has 100ftlbs of torque,what would that equate to in Newton meters? Answered by Stephen La Rocque. 





Conversions 
20000423 

From Tara: 750 lbs = ___ tons How do I figure this out!? I know that 1 ton is 2000 lbs, how do I figure out this answer? Answered by Penny Nom. 

