Recent content by ductape

Hello, I was just wondering, if I have a differential equation that has two regular singular points, and I am asked for the general solution, do I need to use the Frobenius method about each point seperately? I suspect that I do I just want to clarify. Thanks

Hello, I am having a lot of trouble finding a definition of a flow generated by a vector field. I can't seem to find a good definition anywhere. I only need a basic definition, and a basic approach to calculating the flow generated by a vector field. For example, Let U = R2 , x = x(u, v, 0)...

Ah nevermind, I found out that the question was referring to an area already found in a previous question.

My problem is that that is the problem as stated. It doesn't give a function in terms of x.

The question I need to solve for an assignment is as follows: Find the volume of the solid that is obtained by revolving the region R around the x-axis. I figured that the volume would just be the integral of pi R^2 dx, so that would just be pi R^2 x, but that is not the answer. I suspect I...

In the problem, A string's tension is adjusted so that the speed of sound waves on the string equals the speed of sound in the air. The fundamental mode of oscillation is set up on the string, and in a pipe with one end open and one end closed with a length of half of the string resonance is...

haha nevermind got that one literally 1 min after posting...just came to me.

an aluminum wire of length L1 = 50.0 cm, cross-sectional area 1.00×10-2 cm2, and density 2.70 g/cm3, is joined to a steel wire of density 7.80 g/cm3 and the same cross-sectional area. The compound wire, loaded with a block of m = 10.0 kg, is arranged so that the distance L2 from the joint to the...

Just got the right answer. It was EDBBF i forgot the exact definition of buoyant force. Thank you so much!

although research on the net seems to indicate that helium is less buoyant than hydrogen

does that sound ok?

ok so for i) i am now thinking E and for v) i am thinking d

hmm... For iii) i am thinking B for v) hydrogen is less dense than helium so wudnt it push up with a greater force? I am kinda confused about that one. for i) i really cannot seem to get my reasoning straight, wouldn't it have a greater weight if it was going downwards, displacing more water...

Fill in the blanks with: A) increases B)decreases C) less than D) greater than E) stays the same F)stays the same as i) A block of wood floats in a pail of water in a stationary elevator. The level of water in the pail _____ when the elevator accelerates downward. ii) Two identical...

ah thanks guys turns out i was doing the first part right, just rounding too much so my answer was thrown off! I took your advice on the 2nd part and it worked out perfectly! Thanks!