Recent content by AAAA

Oh, alright, cool. It makes sense because the formula is only concerned with magnitude, and not direction. Thanks!

Homework Statement [FONT=Courier New]The formula for price elasticity in my micro/macroeconomics course is: elasticity = For those unable to view the image: (change in quantity / avg quantity)/(change in price / avg price) My question is: Why is it that the average quantity/price is used...

Right, sorry! I meant the force is upwards. Yes, I understand now. Thanks!

The motion is upwards, the direction is downwards.

Homework Statement You move a textbook from a high shelf to a low shelf. Is the work you do on it positive or negative? Homework Equations W = Fcosd The Attempt at a Solution My understanding is that if you are doing a positive applied force on the textbook, over some distance, the work...

Right! Makes sense, thanks again!

The towards center is actually incorrect, now that I look at it again. Thanks for catching my mistake! The acceleration towards the center is a component of the Ft, not Ft itself. My intent with the changing of direction was that from the frame of reference of the merry-go-round, the tension...

Homework Statement You are standing 2.7 m from the centre of a spinning merry-go-round holding one end of a string tied to a 120g mass. The merry-go-round has a period of 3.9 s. Draw a system diagram of the situation. Draw an FBD of the mass in Earth's frame of reference. Draw an FBD of the...

Interesting, I'm assuming that this is beyond the scope of my course-- cool regardless. CoM = Center of Mass, correct?

I guess so, but while the bucket is in the air, it should be accelerating downwards w/ the water @ 9.8m/s/s, no? Meaning the water stays in the bucket?

Homework Statement I was watching a video on centripetal forces, and at one point in the video, the instructor poses a question where he shows a bucket filled with water which requires an Fnet of 3N towards the center to keep the water in the bucket. At one point in the video (please seek to...

I get it now! Thanks so much! Now I can finally move on :smile:

I don't follow the last bit. I think the absolute value sign got messed up. Thanks for responding!

Homework Statement [FONT=Courier New]If f(x)=|x-1/2|-5 determine g(x)=2f(-x+(3/2)) Homework Equations The Attempt at a Solution [FONT=Courier New]Well, I tried to factor out the k-value in the g(x) formula. So I was left with: g(x)=2f(-1)(x-3/2) Then I multiply f(x) by 2 and am left with...

Alright, thanks a lot for all your help!