Recent content by ronaldor9

Definitely! If you have the free time and it interests you, do it. It'll help tremendously, usually on the second exposure to new material, everything I'll make much more sense.

Thanks jtbell, in terms of content do the books differ, i.e. does one of the two use more mathematics?

I have requested a copy from my library to look through before actually purchasing it, thanks for the insight.

yeah i'll find used ones, but i really wanted to know the difference I heard university physics is more conceptual that halliday and resnick

I'm looking to purchase this book: Fundamentals of Physics Extended 9th Edition by Halliday, Resnick, Walker $160 but is this the same as Physics, Volume 1 & 2 by Halliday, Resnick, Krane $ 220 Which is better (more math based etc.) or are they the same?

Yeah that's as far as I was able to get. I'm having troubles decomposing each of those vectors into x- and y-components.

Homework Statement Three identical spheres of radius r are at rest at the bottom of a spherical bowl of radius R. If a fourth sphere is placed on top, what is the largest ratio R/r for equilibrium if there is no friction? Homework Equations Obviously F_net=0 since the sphere are in...

There is one part in my book where it writes R'(y)=Q(x_0,y) and then by integration R(y)=\int_{y_0}^y Q(x_0,y)\,dy. Shouldn't theauthor here have included a constant at the end of the integral as you have written in you example?

Can a function be continuous on a composed interval? For example, if f(x)=\frac{1}{x} then on the interval (-\infty,0) \cup (0,\infty), f(x) is continous? Or is the function f(x) continuous on (-\infty,0) by itself and (0,\infty) by itself (If you don't get what I'm trying to say reply back)?

Thanks l'Hopital Why is the later form preferred over the first form?

When one writes \int p(t) \, dt is the constant of integration implied? I have always thought that it wasn't necessary to write \int p(t) \, dt +k. However, in my diff. eq. book the constant is ussually written out, why is this so? In addition the book also writes \int_{t_o}^t p(t) \, dt...

Thanks! tiny-tim

Hey, sorry i meant to place a constant instead of the zero. Does that identity work for arctan?

Homework Statement (x+2y-4)\,dx - (2x-4y)\,dy=0 The Attempt at a Solution My answer, \mathrm{ln}[4(y-1)^2+(x-2)^2] + 2\mathrm{arctan}\frac{x-2}{2y-2}=C Textbook's answer, \mathrm{ln}[4(y-1)^2+(x-2)^2] - 2\mathrm{arctan}\frac{2y-2}{x-2}=C

Homework Statement A block of mass m1 = 8 kg hangs from the ceiling on an ideal, massless spring with spring constant k = 65 N/m. With the block hanging on the spring, the total length of the spring is L = 3.5 m. When a second block with an identical mass of m2 = 8 kg is tied to the first with...