Ap Definition and 690 Threads

I hope I posted this in the right place... Anyways, I have just about finished my junior year of high school, and I have been looking forward to taking another physics course in my senior year. Because the sequence of science textbooks continues with this...

I got an 85 on my AP Bio Final! Wohoo

Sorry I didn't know where else to post this. But I thought that test was way harder than any of the practice tests I've taken. The free response, at least.

This is a bit different kind of help that I need compared to most other threads in this forum. I was not sure of where exactly to post this. But, since it is pretty much homework, and it's for my AP Calculus AB course, I thought this would be an appropriate place to put this thread. If not...

I have no idea how to do the balanced equations portion of the FR. I know how to balance equations using stoichiometric coefficients, but not the particular type of "balanced equations" on the AP test. For example: "a small piece of sodium is placed in distilled water" my initial thinking...

I'm finding a lot of inconsistency with the solubility rules from different sources. especially when it comes to SO4(negative 2 charge). my teacher told me: soluble except when combined with Ca2+, Ba2+, Sr2+, Pb2+... however, other sources sometimes include Hg(II) 2+, and some Ag+, and...

Homework Statement Block A of mass 2M hangs from a cord that passes over a pulley and is connected to block B of mass 3M that is free to move on a frictionless horizontal surface. The pulley is a disk with frictionless bearings, having a radius R and moment of inertia 3MR^2. Block C if mass...

Find the slope of the line containing the point (4,0) and tangent to the graph of y=e^(-x) : I found the derivative (-e^(-x)) and substituted x=4. I got an answer of -0.018 but the answer is -0.050.. what did i do wrong?If...

1. http://sites.google.com/site/startngovr/ 2. \SigmaF = \Sigmam*a F_{k}=\mu*N X_{f} = 1/2 at^{2} V_{f} = at For problem 1 we think the answers are as followed: \mu_{s} does not = 0.2 a = 5.32m/s^{2} For problem 2 we have no idea what to do. We have too many...

Hey, I just joined the forum since I have a few troubles studying for the AP Physics B exam. My school teaches only Physics I, which hardly goes into any detail of the topics covered in AP Phys B exam. To make it worse, they hardly touch fluid/thermodynamics and not much detail into...

I have 3 biology questions that I don't know the answer to...I have guesses on some of them, but I want to make sure of it before I hand in the questions to my teacher. I think 1 is B. For 2, I know that vascular cambia are found in gymnosperms and dicots. I'm not sure at all about 3...

Homework Statement 1. Let f be a function defined on the closed interval -3<= x <= 4 with f(0)=3. The graph of f's, the derivative of f, consists of one line segment and a semicircle. (a). On what intervals is f increasing ? (b). Find the x-coordinate of each point of inflection of the...

We genetically modified E. Coli with jellyfish genes for flourescence. It was probably the coolest lab we've done yet. No freakin' titrations or counting and sexing any damn fruit flies.

Homework Statement 1. Given the line x=(5/3)x and the curve C: x= sqrt(1+y^2). Let S be the region bounded by the two graphs and the x-axis. The line and the curve intersect at point p. a. Curve C is a part of the curve x^2-y^2= 1. Who that x^2-y^2=1 can be written as the polar equation...

1.Hi!I need some help with the following problem: A body of mass m1+dm is connected to a body of mass m2-dm by a spring of constant k and negligible mass.The system is at rest on a frictionless table.A burst of radiation is emitted by the first body and absorbed by the second changing the...

ok guys so i have two questions, i need help on two questions on the following site "[URL /AP%20Physics%20Daily%20Problems/AP%20Daily%20Prob%20131-140.pdf"]http://staff.hartdistrict.org/glyle/ap_physics/Homework /AP%20Physics%20Daily%20Problems/AP%20Daily%20Prob%20131-140.pdf[/URL] they...

Hey does anyone understand how to do the 1995 Free Response AP Physics Mechanics question?? Specifically, the question about Potential Energy? I understand that F=-dU/dr but that is about it!

anyone have the solutions to the 1995 free response for physics C ap test? I have most of it done, but i just want to check it with the answers.

I was looking for information in regard to Acids and Bases. I'm having a awful time with conceptual questions concerning this chapter in class, and I'm getting pretty frustrated. Any practice questions / supplemental in depth tutorials would be nice. Thanks!

Hai guys iam kinda new here, this is actually my first post. So after i chose to independently self-study the whole of AP Physics C, i ended up compiling a list of books i needed. They are: Main: -Halliday, David, Robert Resnick, and Jearl Walke. 2008. Fundamentals of Physics, 8th ed...

Hey everyone hows it going? I am not sure if this is the right place to be posting this question, but hopefully it is. My names Shawn and I am a senior in high school. I currently have AP calculus and gen physics, and I plan on taking the AP calculus test (ab) and hopefully the physics AP test...

In the laboratory, you are given a cylindrical beaker containing a fluid and you are asked to determine the density ρ of the fluid. You are to use a spring of negligible mass and unknown spring constant k attached to a stand. An irregularly shaped object of known mass m and density D(D>>ρ)...

To demonstrate standing waves, one end of a string is attached to a tuning fork with a frequency of 120 Hz. The other end of the string passes over a pulley and is connected to a suspended mass M. The value of M is such that the standing wave pattern has four "loops". The length of the string...

A spring that can be assumed ideal hangs (vertically) from a stand. a. You wish to determine the spring constant k of the spring. i. What additional equipment do you need? ii. What measurements would you make? iii. How would k be determined from these measurements? b...

Homework Statement A 2kg block and an 8kg block are both attached to an ideal spring for which k=200 N/m and both are initially at rest on a horizontal frictionless surface. In an initial experiment a 0.1kg ball of clay is thrown at the 2kg block. The clay is moving horizontally with speed v...

What's a good study guide for scoring a high mark on the exam? Is "Cracking the AP Physics B Exam, 2009 Edition (College Test Prep)" by Princeton Review good? It seems popular.

I am not exactly sure if this topic if relevant to this thread, so sorry in advance if it is not. I am currently in the 9th Grade, my AP Physics class is doing a individual project and I have absolutely no ideas. I am thinking about a Gauss Cannon or something. Maybe a levitating device such as...

[SOLVED]AP Question involving Ideal Gas Law - Thermal Physics - Pressure I am having some trouble with an old ap problem(PART C ONLY), see below: Homework Statement 1996 AP PHYSICS B Free Response Question: The inside of the cylindrical can has a cross sectional area of 0.005 m^3 and...

Does anyone have a link or multiple choice questions for old AP physics B or C?

Looking at an old AP multiple choice test, I found this question and answer: A satellite of mass M moves in a circular orbit of radius R at a constant speed v. Which of the following must be true? One of their "true" answers states: The net force on the satellite is equal to MR and is...

Homework Statement 1. A 2 kg block and 8kg block are both attached to an ideal spring (k= 200N/m) and both are initially at rest on a horizontal frictionless surface. In an initial experiment, a 0.1kg ball of clay is thrown at the 2 kg block. The clay is moving horizontally with speed v when...

A 2-kilogram block initially hangs at rest at the end of two 1-meter strings of negligible mass as shown on the diagram above (I'll explain this later). A 0.003-kilogram bullet, moving horizontally with a speed of 1000 meters per second, strikes the block and becomese embedded in it. After the...

Two 10 kilogram boxes are connected by a massless string that passes over a massless frictionless pulley as shown above. The boxes remain at rest, with the one on the right hanging vertically and the one on the left 2.0 meters from the bottom of an inclined plane that makes an angle of 60° with...

I got a vial of fruit flies from my AP Biology teacher for Christmas, lol. Gotta observe them for two weeks and then we're going to study genetics by breeding them.

Yeah I know I've asked about the Physics AP tests, but how about Calclulus BC (obviously, if I got a 5)? I don't plan on doing theoretical physics in the future, just FYI.

1992 Physics-C Section 2 Mechanics 2 See the attached Word document, which preserves the original formatting of the question (to visualize the diagrams, see below) and my work and answers. The diagrams are as follows: There is a horizontal rod of length 2l with its axis at its midpoint...

AP Physics and college major... Hi, I need to know something about college... Assume I score 5s on both the AP Physics B and C test, and in college I want to major in Physics and go on to grad school for some area in Physics. I plan to take Honors Physics BTW. Is it recommended that I use...

Is it even possible? I have a Princeton AP Physics book that is supposed to prepare you for the test, but is that enough? It's almost impossible for me to take this class, but I feel I could do well on the test. Would Barron's or Princeton cover everything I need to know for the test?

Hello, I've lurked anonymously for quite a bit on these forums, and until now had no reason to register and ask a question. Background: high school senior with (otherwise) high GPA(3.9) and fairly good ACT score (31) seeking advice and consulting from experienced PF member. Now that...

Homework Statement A 20 kg mass released from rest slides down a frictionless plane inclined at an angle of 30 deg with the horizontal and strikes a spring of spring constant K=200 Newtons/meter. Assume that the spring is ideal, that the mass of the spring is negligible, and that mechanical...

Okay so I'm taking AP Physics B at my high school this year (i'm a senior) and I really enjoy it and I do well on all of the tests so far (I do usually get 1 or 2 problems wrong tho...my average is between 80 and 90 percent on tests). I really like Physics and all of the theories and stuff but...

Okay so I really, really liked Physics pre-ap last year. We had a great teacher, and I understood everything. Fast forward a year later, and that teacher left, and the new AP teacher is okay. He's a great guy, but I can't really grasp the way he teaches. Last year I was in AP Chem, and hated...

I got a take home test for AP Physics B and I've completed it. I just wanted to check with some people to see if they agree with some of the questions I had some difficulty with. I'll list the questions & how I thought they are solved. Any and all feedback is greatly appreciated- thanks for...

5. A plane flies from base camp to Lake A, a distance of 280 km at a direction of 20.0 degrees north of east. After dropping off supplies, the plane flies to lake B, which is 190 km and 30.0 degrees west of north from Lake A. I'm not even going to write the actual question part, since...

Hi All, from this page: http://en.wikipedia.org/wiki/Saltatory_conduction If at node N1, an AP is generated and then the passive spread initiates another AP at node N2, is there 2 APs existing at the same time? In fact, the second AP is ever initiated before the first has ended. It seems...

I'm taking the AP class on calculus AB, and I want to order a book. Anyone would recommend one? I think the Princeton Review is the best one, but the Kaplan's and Barron's seems good too, so any opinion would help. Also I'm taking AP macroeconomics. I know this is not a a topic that people...

Hey guys, I am taking AP physics C in high school. So far i have found it very easy, because physics last year came very easy to me. I want to self study for the electro/magnitism portion, because in our time we can only prepare for the mechanics portion. I have the textbook Fundamentals of...

I. A model rocket is launched straight upwards with an initial speed of 50.0 m/s. It accelerates with a constant upward acceleration of 2.00 m/s2 until it's engines stop at an altitude of 150 m. I found a thread with an extremely similar question, but the only reply that showed up was a...

AP free fall question (solved) Homework Statement I have problem with question b. A hot air bolloon is traveluing vertically upward at a constant speed of 5.00m/s. When it is 21.0m above the ground, a package is released from the balloon. a) for how long after being released is the...

Homework Statement A rocket is intially at rest on the ground when its engines are fired the rocket flies off in a straight line at an angle of 53.1 degrees abovie the horizontal with a constant acceleration of magnitute g, the engines stop at time T after launch after which the rocket is a...