Recent content by Wolfowitz

The problem is that 'my' solution is at variance with the solution provided for the question in the solutions manual that accompanies the textbook I am using. Homework Statement "A 14.1-mL sample of 0.996 M NaOH is mixed with 32.3 mL of 0.905 M HCl in a coffee-cup calorimeter (see Section...

Millennial: I fully understand the gazelle will be running too. If I didn't, I would have put for "c." that the cheetah would have to travel only one mile in order to catch up to the gazelle. lol Here is my second attempt. (HallsofIvy omits that there is a 1 mile disparity, and doesn't...

Toward the end of Middle School, I always knew it would come time for me to confront my algebraic innumeracy by means of rigorous and meticulous study of textbooks made available to me by friends who have taken Algebra 1 and Algebra 2 courses, to acquaint myself with what I need to know in order...

Really? Presume f = 2, d = 4: F x D = F x D 2 x 4 = 0.8(2) + 1.25(4) 8 = 1.6 + 5 8 = 6.6 ?

Homework Statement The mechanical advantage of a lever is 0.08; force is not amplified, it is simply diminished; distance, however, is increased: Work input = Work output F x d = F x d F x d = 0.8F x ?(d) This must be a really basic question, but I'm compelled to ask as I'm somewhat...

Work input = Work output (Force * distance) input = (Force * distance) output (Force * distance) input = (force/2 * distance2) output Distance is doubled, right? But what, exactly, is "distance" in terms of a lever?

Homework Statement If a lever has a mechanical advantage of 0.5 - does this mean the input force is not amplified but halved? Homework Equations The Attempt at a Solution

Thanks a bunch!

Homework Statement Currently, I'm expected to find the side length of a square garden whose area is 25cm2. Of course, we're talking about a square here, and since the area of a rectangle is l * w, and, when talking about a square, l = w, the area of a square is S2. Of course, I know each side...

11 * load arm = effort arm + load arm? load arm = effort arm + load arm / 11?

Then how would you isolate the load arm?

Homework Statement If the mechanical advantage of a lever is, let's say, 10; the forces pushing down on the effort arm equate to 100kg and the forces pushing down on the load arm equate to 1000kg and the lever itself is 5 meters, how do we go about finding the individual arm lengths (i.e. the...