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Aurelius120's latest activity
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Aurelius120
replied to the thread
Equation of hyperbola confocal with ellipse having same principal axes
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Also just to clarify more than one options are correct so all need to be checked
Wednesday, 11:40 AM
A
Aurelius120
posted the thread
Equation of hyperbola confocal with ellipse having same principal axes
in
Precalculus Mathematics Homework Help
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The equation of ellipse reduces to : $$(2x+3)^2+(3y+2)^2=8$$ $$\frac{(x+3/2)^2}{8/4}+\frac{(y+2/3)^2}{8/9}=1$$ Center of ellipse...
Wednesday, 11:35 AM
A
Aurelius120
replied to the thread
Electric field & force due to charged insulating hemispherical shells
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Solution 1 Solution 2 Solution 3
May 9, 2024
A
Aurelius120
replied to the thread
Electric field & force due to charged insulating hemispherical shells
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The book's answer is option C though and the solution on the web is as described in the 1st post by somehow using the formula of...
May 8, 2024
A
Aurelius120
posted the thread
Electric field & force due to charged insulating hemispherical shells
in
Introductory Physics Homework Help
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So I know I have to equate force on a hemispherical shell with spring force to get value of compression but I can't find the force on...
May 8, 2024
A
Aurelius120
reacted to
haruspex's post
in the thread
A vertical U tube rotates about the vertical axis -- Find omega to cause this height offset
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It is just like gravity, except that it is horizontal and varies along the length of the tube. Suppose the horizontal tube were to vary...
May 8, 2024
A
Aurelius120
replied to the thread
A vertical U tube rotates about the vertical axis -- Find omega to cause this height offset
.
But isn't it equating the force required for rotation to force exerted? I don't know if there is something like Centripetal pressure...
May 8, 2024
A
Aurelius120
replied to the thread
A vertical U tube rotates about the vertical axis -- Find omega to cause this height offset
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I am not sure I understand. The water can't be treated as rectangular/cylindrical blocks with forces ##V\rho g## on either side and...
May 8, 2024
A
Aurelius120
replied to the thread
A vertical U tube rotates about the vertical axis -- Find omega to cause this height offset
.
I think I got it $$\int^b_0{\omega^2 A\rho rdr}-PA=A(b)\rho g$$ $$\int^{2b}_0{\omega^2A\rho rdr}-PA=A(3b)\rho g$$ Therefore Subtracting...
May 8, 2024
A
Aurelius120
replied to the thread
A vertical U tube rotates about the vertical axis -- Find omega to cause this height offset
.
So how do I account for that? Its arbitrary so how to know its value
May 7, 2024
A
Aurelius120
replied to the thread
A vertical U tube rotates about the vertical axis -- Find omega to cause this height offset
.
So it will be $$\int{\omega^2r dm}= V\rho g$$ On either side with limits ##0\text{ to }b## and ##0\text{ to }2b## and ##V## changed...
May 7, 2024
A
Aurelius120
replied to the thread
A vertical U tube rotates about the vertical axis -- Find omega to cause this height offset
.
So I have to integrate or something? Isn't the pressure atmospheric everywhere , so it doesn't affect the net results anywhere?
May 7, 2024
A
Aurelius120
posted the thread
A vertical U tube rotates about the vertical axis -- Find omega to cause this height offset
in
Introductory Physics Homework Help
.
I thought I could use force balance as $$V\rho g=m\omega^2r$$ But that gives two different values and neither correct $$(Ab)\rho...
May 6, 2024
A
Aurelius120
reacted to
pasmith's post
in the thread
Condition for coplanarity of two lines
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If \mathbf{x_0} + \lambda\mathbf{n_0} and \mathbf{x_!} + \mu\mathbf{n_1} lie in the same plane, then the normal to that plane must be...
Apr 14, 2024
A
Aurelius120
posted the thread
Condition for coplanarity of two lines
in
Precalculus Mathematics Homework Help
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So I tried to solve it this way: The equations of the lines in vector form are $$(x-2)\hat i+(y-3)\hat j+(z-4)\hat k=\lambda (\hat...
Apr 10, 2024
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