Wislar
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Questions Asked

Wislar:
Group Title
Determine the interior, the boundary and the closure of the set {z ε: Re(z^2>1}
Is the interior of the set pathconnected?
 updated 5 months ago
 5 replies
 1 Medal
Mathematics

Wislar:
Group Title
Describe the closure of pi<arg(z)<pi (z\=0) with formulas.
…
 updated 6 months ago
 3 replies
 2 Medals
Mathematics

Wislar:
Group Title
Sketch the following regions and state the interior and the closure:
a) z2+i≤1
b) Im(z)>1
 updated 6 months ago
 7 replies
 1 Medal
Mathematics

Wislar:
Group Title
Consider the reaction: P4 (s) + 5O2 (g) = P4O10 (s)
How many grams of phosphorus react with 59.17 L of oxygen (O2) at STP (standard temp…
 updated 9 months ago
 No Medals Yet
Mathematics

Wislar:
Group Title
Please help!
A sample of sodium azide (NaN3), a compound used in automobile air bags, was thermally decomposed and,
…
 updated 9 months ago
 No Medals Yet
Mathematics

Wislar:
Group Title
A tank measures 13.54 in × 13.69 in × 7.27 in, when full, the tank holds 22.08 L which is the same as 5.83 gallons.
If the tank is full o…
 updated 10 months ago
 No Medals Yet
Mathematics

Wislar:
Group Title
Bowl B1 contains two white chips,bowl B2 contains two red chips, bowl B3 contains two white chips and two red chips, and bowl B4 contains th…
 updated 10 months ago
 No Medals Yet
Mathematics

Wislar:
Group Title
Please help!
Bowl A contains 3 red and 2 white chips, Bowl B contains 4 red and 3 white chips. A chip is drawn at random from bowl A and tra…
 updated 10 months ago
 1 reply
 No Medals Yet
Mathematics

Wislar:
Group Title
What is the prob of drawing 2 hearts from a deck of 52 cards??
 updated 10 months ago
 4 replies
 1 Medal
Mathematics

Wislar:
Group Title
Determine the conversion factor for a conversion of m/s2 to km/h2?
1 kg = 2.205 lb, 1 in. = 2.54 cm, 12 in. = 1 ft
…
 updated 10 months ago
 9 replies
 No Medals Yet
Mathematics

Wislar:
Group Title
Evaluate the flux integral directly with the boundary being the unit cub in the first octant of R3 with F(x,y,z)=xi+yi+zk
 updated one year ago
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Mathematics

Wislar:
Group Title
One solution to the differential equation: \[y''2\tan(x) \ y' y=0 \ is \ y=\frac{ 1 }{ \cos x }\] Find another solution of the equation su…
 updated one year ago
 11 replies
 2 Medals
Mathematics

Wislar:
Group Title
Check whether solutions of the following ivp exist:
\[y''+e ^{x}y=x ^{2}\]  y(0)=1, y'(0)=0
 updated one year ago
 15 replies
 No Medals Yet
Mathematics

Wislar:
Group Title
Find: The real part: \[\Re[(4+i)e ^{(1+i)x}]\]
 updated one year ago
 22 replies
 2 Medals
Mathematics

Wislar:
Group Title
Please help! Consider the equation: y''2xy'2y=0. One solution is y1(x)=e^(x^2). Find a second solution to the equation.
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Wislar:
Group Title
I just need to know the bounds of integration for this:
Seawater has density 1025 kg/m and flows in a velocity field v=yi+xj. Find the rate…
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

Wislar:
Group Title
Solve the surface integral: \[\int\limits_{}^{}\int\limits_{S}^{}xz \ dS\] S is the part of the plane 2x+2y+z=4 that lies in the first octan…
 updated one year ago
 24 replies
 2 Medals
Mathematics

Wislar:
Group Title
Complex functions help please! Picture attached Please please help
 updated one year ago
 11 replies
 1 Medal
Mathematics

Wislar:
Group Title
Derivative of x^3 +i(x^5) ?
 updated one year ago
 2 replies
 1 Medal
Mathematics

Wislar:
Group Title
Find the interval of existence of:
y''+(sinx)y'+xy=e^x, y(0)=1
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

Wislar:
Group Title
Find all solutions of y''+(2/x)y'=1 ; x>0
 updated one year ago
 10 replies
 1 Medal
Mathematics

Wislar:
Group Title
\[y'+(e ^{x}\tan x)y=\frac{ 1 }{ 1x ^{2} }; \ \ y(0)=0\]
Check existence and uniqueness of solutions of the following initial value prob…
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

Wislar:
Group Title
If a circle C with radius 1 rolls along the outside of the circle x^2+y^2=16, a fixed point P on C traces out a curve called an epicycloid, …
 updated one year ago
 17 replies
 2 Medals
Mathematics

Wislar:
Group Title
Find all solutions in implicit form of the following ODE in symmetric form: \[x \ dy +y \ dx+ x ^{2}y ^{5} \ dy=0\]
 updated one year ago
 8 replies
 1 Medal
Mathematics

Wislar:
Group Title
Please help
\[y'=\frac{2xy^2+x^3}{x^2y}\] Find all solutions and indicate the interval of convergence
 updated one year ago
 3 replies
 1 Medal
Mathematics

Wislar:
Group Title
delete.
 updated one year ago
 1 reply
 1 Medal
Mathematics

Wislar:
Group Title
Please Check!
Line integral: \[\int\limits_{C}^{}x ^{2}dx+y ^{2}dy\] of the line segment from (0,2) to (4,3)
 updated one year ago
 37 replies
 1 Medal
Mathematics

Wislar:
Group Title
Evaluate the line integral:
Int(x^2 dx +y^2 dy) \[\int\limits_{C}^{}x ^{2}dx+y ^{2}dy\]
C consists of the arc of the circle x^2+y^2=4 from (…
 updated one year ago
 3 replies
 1 Medal
Mathematics

Wislar:
Group Title
Quick Question about this question!
A thin wire has the shape of the firstquadrant part of the circle with center the origin and radius a.…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Wislar:
Group Title
How do I draw a vector field by hand? F(x,y,z)=y k
 updated one year ago
 12 replies
 2 Medals
Mathematics
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