- Viewing Profile: Posts: glitch
glitch
Member Since 07 Dec 2011Offline Dec 31 2011 02:58 AM
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First year science student in university. Lives in Canada (not Canadia). Has questionable tastes in music, film, just about everything. Has no idea why she chose the username glitch.
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- Age 33 years old
- Birthday October 20, 1993
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Posts I've Made
In Topic: Algebra II Extra Credit (HELP!!)
13 December 2011 - 02:56 PM
Not a problem - happy to help!
In Topic: Physics
13 December 2011 - 02:54 PM
Although, I did notice something that might make a difference:
Area of a circle = pi* r^2
The question gives you diameter in centimeter, so it would be actually 0.0065m in radius. So the area would be 0.00004225pi of each leg. So, overall area would be 0.00004225pi * 4.
Which would make it:
Pressure = Force/Area
(74+3.9)*9.81/ (0.00004225pi*4) = Total Pressure so in order to find individual pressure on each leg, it would be:
[(74+3.9)*9.81/ (0.00004225pi*4)]/4 = Pressure on each leg.
I got 359840.3798 which when rounded to 2 sig.figs. should be 360000 Pa.
...I think. Take with a grain of salt! (Okay, time to actually do organic chemistry now).
Area of a circle = pi* r^2
The question gives you diameter in centimeter, so it would be actually 0.0065m in radius. So the area would be 0.00004225pi of each leg. So, overall area would be 0.00004225pi * 4.
Which would make it:
Pressure = Force/Area
(74+3.9)*9.81/ (0.00004225pi*4) = Total Pressure so in order to find individual pressure on each leg, it would be:
[(74+3.9)*9.81/ (0.00004225pi*4)]/4 = Pressure on each leg.
I got 359840.3798 which when rounded to 2 sig.figs. should be 360000 Pa.
...I think. Take with a grain of salt! (Okay, time to actually do organic chemistry now).
In Topic: Physics
13 December 2011 - 02:30 PM
You're welcome. <3
Urgh, I took it this semester....realized I didn't need it, dropped it in a heartbeat. Best decision of the semester. I'd try the second question, but I don't trust my physics...and I need to rewrite the Algebra II question someone wrote on the forums and then actually study for my own final tomorrow (ahhhhhh).
Urgh, I took it this semester....realized I didn't need it, dropped it in a heartbeat. Best decision of the semester. I'd try the second question, but I don't trust my physics...and I need to rewrite the Algebra II question someone wrote on the forums and then actually study for my own final tomorrow (ahhhhhh).
In Topic: Algebra II Extra Credit (HELP!!)
13 December 2011 - 02:27 PM
I got it, hang on let me rewrite it neater. (Gdi, why am I not studying for my final?)
Here:
http://i422.photobuc...32/IMG_0877.jpg
I'm not forum savvy enough to figure out how in the world do I do a thumbnail image so just a link to the solution.
Here:
http://i422.photobuc...32/IMG_0877.jpg
I'm not forum savvy enough to figure out how in the world do I do a thumbnail image so just a link to the solution.
In Topic: Physics
13 December 2011 - 02:16 PM
According to my physics textbook that I thought I would never have to pick up again after dropping the course, that formula of the gods can be rewritten as:
I = I(0) x 10 ^(beta/10 dB).
I'm not exactly sure if that's what they're looking for, but it's all that I got. ...By any chance, is that screenshot from MasteringPhysics?
I = I(0) x 10 ^(beta/10 dB).
I'm not exactly sure if that's what they're looking for, but it's all that I got. ...By any chance, is that screenshot from MasteringPhysics?
- Viewing Profile: Posts: glitch
