24/7 Customer Service 1-866-236-8417 Need Help? 1-866-236-8417

Reply
Results 1 to 1 of 1
  1. #1
    Banned Saint_James's Avatar
    Join Date: Jan 2009
    Age: 23
    Stats: 5'9", 180 lbs
    Posts: 5,296
    Rep Power: 0
    Saint_James has reached the pinnacle! Best possible rank! (+1000000) Saint_James has reached the pinnacle! Best possible rank! (+1000000) Saint_James has reached the pinnacle! Best possible rank! (+1000000) Saint_James has reached the pinnacle! Best possible rank! (+1000000) Saint_James has reached the pinnacle! Best possible rank! (+1000000) Saint_James has reached the pinnacle! Best possible rank! (+1000000) Saint_James has reached the pinnacle! Best possible rank! (+1000000) Saint_James has reached the pinnacle! Best possible rank! (+1000000) Saint_James has reached the pinnacle! Best possible rank! (+1000000) Saint_James has reached the pinnacle! Best possible rank! (+1000000) Saint_James has reached the pinnacle! Best possible rank! (+1000000)
    Visit Saint_James's BodySpace
    Saint_James is offline

    calc help (reps)

    1. When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV1.4 = C, where C is a constant. Suppose that at a certain instant the volume is 300 cm3 and the pressure is 80 kPa and is decreasing at a rate of 10 kPa/min. At what rate is the volume increasing at this instant?

    2. If two resistors with resistances R1 and R2 are connected in parallel, as in the figure below, then the total resistance R, measured in ohms (Ω), is given by the equation below. If R1 and R2 are increasing at rates of 0.3 Ω/s and 0.2 Ω/s, respectively, how fast is R changing when R1 = 70 Ω and R2 = 100 Ω? (Round to 3 decimal places.)

    1/R = 1/R1 + 1/R2

    3. A ferris wheel with a radius of 13 m is rotating at a rate of one revolution every 2 minutes. How fast is a rider rising when the rider is 25 m above ground level?
    Reply With Quote

Reply

Similar Threads

  1. Brief-Calc Help, Reps
    By Fred Flinstone in forum Misc.
    Replies: 4
    Last Post: 02-05-2008, 09:31 PM
  2. Calc Help (Reps)
    By acb460acb in forum Misc.
    Replies: 0
    Last Post: 10-10-2007, 12:45 AM
  3. Calc help (reps)
    By UnlimitedSteel in forum Misc.
    Replies: 12
    Last Post: 10-03-2007, 06:49 PM
  4. Replies: 12
    Last Post: 11-17-2006, 09:02 PM
  5. Pre-Calc help...reps
    By rchudgar in forum Misc.
    Replies: 6
    Last Post: 10-11-2006, 12:50 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts