jotopia34
Name:
Joanna Nicholson
School:
Florida Gulf Coast University
About:
I love math and science but I don't always "get" the concepts at first glance. this is very frustrating to me and I don't have other people I can discuss these things with. I am glad this network exists.
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Questions Answered
jotopia34:
Group Title
REDOX question. I can not get this straight,
Which is the [red] and which is the [ox]?
SO4(2-) or SO3(2-)? Please explain as well. thx!
updated one month ago
32 replies
No Medals Yet
Mathematics
Wriddler:
Group Title
What is the molar mass of (NH4)2O? Explain how you calculated this value.
updated one month ago
17 replies
1 Medal
Mathematics
jotopia34:
Group Title
Which is the oxidized form? Al3+ or Al(s)???
updated 2 months ago
2 replies
1 Medal
Mathematics
jotopia34:
Group Title
PLz Help. How do you balance this half cell reaction?
C2H5OH <->CO2
…
updated 2 months ago
2 replies
No Medals Yet
Mathematics
jotopia34:
Group Title
dynamics question, hard.
Please see pic. Why in the Work Energy solution technique is the final Kinetic energy not including the Vc (veloci…
updated 9 months ago
6 replies
1 Medal
Mathematics
jotopia34:
Group Title
Spring Constant K question.
If it says that the spring force constant is 90 lb PER foot, then don't you need to multiply that value times t…
updated 9 months ago
3 replies
2 Medals
Mathematics
sab11:
Group Title
hi i'm a 1st year engineering student. and there is this problem which i cant to at all.. can someone help me out.. or atleast start me off …
updated 8 months ago
5 replies
No Medals Yet
Mathematics
Ash90:
Group Title
does any one on here know how to use excel?
i need help with these:
…
updated 10 months ago
4 replies
1 Medal
Mathematics
jotopia34:
Group Title
Why if a train starts from rest and then accelerates down the track, coming toward me faster and faster, is the speed of the soundwaves the …
updated 10 months ago
2 replies
1 Medal
Mathematics
jotopia34:
Group Title
MEchanics-Sstatics Help PLeeeeasssseeee!I have a 3D equilibrium problem I just don't know how to solve. I am posting the problem but don't u…
updated 11 months ago
3 replies
No Medals Yet
Mathematics
jotopia34:
Group Title
Hard Resolving Forces question..... I need to find the angle CED, but the problem is a 3D Force vector one. I can't seem to figure out how t…
updated 11 months ago
8 replies
1 Medal
Mathematics
jotopia34:
Group Title
ADvanced Geometry Question.... I need to find the angle CED, but the problem's image is a 3D depiction. I can't seem to figure out how to ge…
updated 11 months ago
4 replies
1 Medal
Mathematics
EmanMahmoud:
Group Title
how we choose the function we let it equal u in integration by substitution ???
please any help
updated 11 months ago
3 replies
1 Medal
Mathematics
stephanieadams:
Group Title
I need help with a test plz
updated 11 months ago
8 replies
8 Medals
Mathematics
jotopia34:
Group Title
PLease help. Anyone that can understand Force Vectors. I can't seem to find the x and y components of the F1 force vector on this 3D coord. …
updated one year ago
1 reply
No Medals Yet
Mathematics
jotopia34:
Group Title
Please help! I still can't resolve 3D force vectors. I can't find the x and y components of F1.
updated one year ago
7 replies
1 Medal
Mathematics
jotopia34:
Group Title
Components of force vector question please! I can never figure out which is Fx and which is Fy when dividing up force vector F into componen…
updated one year ago
36 replies
2 Medals
Mathematics
jotopia34:
Group Title
Use a double integral to find the area of the region.
The region inside the circle
…
updated one year ago
49 replies
1 Medal
Mathematics
jasonjohnson86:
Group Title
Hi, can someone please help me with a simple free body diagram? A block is moving to the left which is the positive direction and is moving …
updated one year ago
4 replies
No Medals Yet
Mathematics
JayN:
Group Title
I have a problem with this http://prntscr.com/24xad7
I feel like I'm not given enough information to solve it, but I am unsure, this is a…
updated one year ago
1 reply
No Medals Yet
Mathematics
jotopia34:
Group Title
Please see pic
A sphere of mass Msphere and a yoyo of mass Myoyo are suspended from a from a pulley with mass Mpulley. The pulley can rotate…
updated one year ago
33 replies
2 Medals
Mathematics
jotopia34:
Group Title
Someone please help me!
I am trying to find a phase angle on my TI84. I know that Fi is equal to 4.25 from answer book.
…
updated one year ago
11 replies
1 Medal
Mathematics
jotopia34:
Group Title
new question, determine divergence, convergence, absolute or conditional of
infinite series n^10/10^n. stumped again
…
updated one year ago
1 reply
No Medals Yet
Mathematics
jotopia34:
Group Title
This is a calc 2 question, absolute convergence.
Im not sure what tests for convergence to use on
Series as n=1 to infinity of 2^n(lnn)*1/n…
updated one year ago
10 replies
1 Medal
Mathematics
Andysebb:
Group Title
How did my professor simplify this step: ((200+t)^2) *(dy/dt) + ((200+t)^2) * ((2)/(200+t))y = 18(200+t)^2
to:
…
updated one year ago
22 replies
No Medals Yet
Mathematics
godgavemeyou:
Group Title
My owls I've Designed!
Feel free o use them .
updated one year ago
32 replies
1 Medal
Mathematics
jotopia34:
Group Title
Calc 2 Help please...
Does the series converge and if so to what?
sum from n=1 to infinity of 1/ 1-(2/3)^n
updated one year ago
2 replies
No Medals Yet
Mathematics
sfb:
Group Title
Use a half-angle formula to rewrite (cos2x)^2 using only a cosine function to the first power. Please help!
updated one year ago
1 reply
1 Medal
Mathematics
LordVictorius:
Group Title
Help with derivatives. Explain only, no answer.
Find the derivative of f(x) = 6x + 2 at x = 1.
updated one year ago
108 replies
1 Medal
Mathematics
jotopia34:
Group Title
Calc II question please...
Can someone please explain if the sequence cosn/n^4 converges or diverges? I know the formal definition of Squee…
updated one year ago
40 replies
1 Medal
Mathematics
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