Actually, they are going to give us back our free response books soon (they said it would be after 48 hours, but I need to ask my teacher today). When I get mine, I could type up the problems and maybe someone here can solve them all and explain to everyone who took the AP Physics B test what...
Can anyone provide advice for this? We will be putting them in the school's pool and racing them. But I really want some advice.
(1) Formulas to find if the boat will float or sink (we'll be able to make measurements and stuff).
(2) Plan ideas.
(3) Stuff to focus on in building.
We...
You people have been helpful. But I didn't see an answer to one of my questions.
When you have a, b, and c - How do you determine exactly where the points lie? (a,0) won't work for a vertical ellipse. So do you just flip it to (0,a)? Or is there a method that works? My problem is finding the...
So what formula should I use to find c?
My choices are (c^2 = abs(a^2 - b^2)) or the original formula that requires a^2 > b^2 which is (a^2 = b^2 + c^2).
Other than graphing, how do you determine the orientation of the major axis of an ellipse? I've been solving for y and using my TI calc.
How do you solve for c?
When you have a, b, and c - How do you determine exactly where the points lie? (a,0) won't work for a vertical ellipse. So do you...
My math teacher has been out for 2 days and the subs have just been putting notes up and I'm totally not getting this. So maybe someone here can explain everything in other ways. Note that my book does a crappy job of explaining this subject. But it does break it down into two distince areas -...
Well, I'm given two formulas for Photoelectric Effect wiht little about them. The only one that I have no idea what it is states: KE[max] = eV[0]. I know that eV is electron Volts, but I don't think that's what the formula is saying.
In a photoelectric experiment, light is incident on a metal surfact. Photoelectrons are ejected, producing a current. A reverse potantial is applied and adjusted until the current drops to 0 (this is called the stopping potential). This fata is collected for stopping potentials (listed first)...
The answer must be in Pa. So I guess I should convert everything. The instructions are to have all answers in SI units unless the question directs otherwise, and there is nothing in the question that says the answer doesn't need to be in SI units.
OK. It's not P[i] = V[i] / T[i]. It's P[i] * V[i] / T[i] = constant? Or should there be parenthesis in there somewhere? And then the same with [f]s.
EDIT: What units to P, V, and T need to be in? Does P need to be in Pa or can I use atms? I'm guessing V must be in liters. Does T need to be...
I've been having a lot of trouble in thermodynamics...are there any good sites that explain it? Here's my current problem:
Would I need to use the equation of state to solve this problem?
A cylinder contains oxygen at 20 degrees C, at a pressure of 15 atm and a volume of 12 L. The...
Interpret the diagram given for 1000g if substance when heated by a 100W heater. Determine it's melting point, boiling point, and specific heat for each phase, it's heat of vaporization, and its head of fusion.
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I've analyzed the graph and found the melting point to be 60 degrees C...