Recent content by lostinphysics44

Quick question: in this equation, how do I solve it to get the dr_i/dt and dr_i-1/dt so that I can plug them into the averaging formula? I know everything and all the constants but what is the MATLAB way to solve this?

In order for this to work I have to assume a starting bubble radius yes? This is probably not the right forum for this, but think if i took a shot at a MATLAB script you could look it over for me?

The function is the overall bubble size as it relates to a variety of factors (pressure, time, viscosity, tissue tension, etc) I am trying to understand how to plot the radius over time as pressure changes. From what you explained it seems that at each dt there is a pressure (which I can set...

Would it be possible to plot the radius change over time in matlab? How would I go about doing that?

Trying to understand what is going on here, and how this technique removes the dependence of sample rate from the solution.

please help fast! NaBH4 reduction... Homework Statement Compound B [structure shown below] was reduced with sodium borohydride. The student used 1.1015g of Compound B. She prepared the sodium borohydride solution by dissolving 1.0085g of sodium borohydride in sufficient solvent to...

Homework Statement Two 10-cm-diameter metal plates are 1.0 cm apart. They are charged to +/-12.5 nC. They are suddenly connected together by a 0.224-mm-diameter copper wire stretched taut from the center of one plate to the center of the other. A)What is the maximum current in the wire...

if u are off by a little they usually tell u and accept the answer, .86 was just wrong, if u are close they give u some advice, and tell u to check your rounding, this was not the case.

so it should be greater or less than .122, and why is .86 incorrect if we took that into account?

i have this going in the introductory physics forum, and was just looking for a different perspective/insights into how to do this problem if any of u couldlook at that would be great, thanks.

i got an answer of .122kg earlier and the program told me to " Remember that the ice turns into liquid water above the melting point." i tried to incoporate this but was unsuccessful, what does it mean in terms of an equation?

.86kg is also incorrect, i have only one more try at, this any other ideas?

i just tried it with all the temps in kelvin and stilli can't figure out what i am doing wrong someone please help me with this.

i used 439000 but i still got the wrong answer and i don't see anything wrong with the arithmetic...i don't know why i am not gettin gthis i have done similar problems and gotten them right, something here just isn't adding up...

i'm still not getting the right answer, i get that i need to change 439 to joules, but it isn't working out what might be wrong, should 17.5 be negative?