A crate of mass 20 kg is pushed up a frictionless ramp by a person as shown in the figure below. Calculate the work done by the person in pushing the crate a distance of 15 m as measured along the ramp. Assume the crate moves at a constant velocity.
November 21, 2010
A mail order company has sent a questionnaire to each of its customers, asking how many of the previous year's promotions prompted orders that would not have otherwise been made. The accompanying table lists the probabilities that were derived from the questionnaire, where...
September 17, 2010
You are putting a stone borderof uniform width around a rectangular garden that measures 6 yards by 15 yards. You only have enough stone to cover 100 square yards. How wide should the border be? Solve using the 5 step process.
September 9, 2010
Please help edit this paragraph. We girls sent invitations to our relatives. Practically everyone came! Aunt Amanda and Uncle Mike helped a lot. Of all our relatives, my favorites are they. I think you change they to them, but I am not sure. My other options are changing they ...
May 7, 2009
Compare and contrast the development of Macbeth and Lady Macbeth.What different stages does each other them through Please post your answer and we'll be glad to critique it for you. This character analysis site will probably help you with your answer. http://www.sparknotes...
May 28, 2007
AP Chemistry--gas law questions
Hey, My AP Chem class did a lab for determing the molar mass of a volatile liquid by vapor density. There are a few calculations that I can't seem to get: 1.) The moles of air displaced by the volatile liquid vapor (at RT) 2.) The molar mass of air (calculated) 3.) Mass of...
November 25, 2006