Ap Definition and 669 Threads

A uniform steel beam of length 5.50 m has a weight of 4.50 103 N. One end of the beam is bolted to a vertical wall. The beam is held in a horizontal position by a cable attached between the other end of the beam and a point on the wall. The cable makes an angle of 25.0° above the horizontal. A...

Hey guys. These are the first AP Problems I'm doing. Here is all my work. Let f be the function given by f(x) = x^{3}-7x+6. a. Find the zeros of f. b. Write an equation of the line tangent to the graph of f at x = -1 c. Find the number c that satisfies the Mean Value Theorem for f on the...

Homework Statement Water is drained from a conical tank with height 12ft and diameter 8ft into a cylindrical tank that has a base with area 400Π square feet. the deep, h, in feet, of the water in the conical tank is changing at the rate of 12 ft/min a. write an expression for the volume...

I'm not in the class, but a friend of mine asked me to help him with this problem, and I just can't figure it out! It seems like it's simple, but whenever I try to do it, I can't find a solution: Problem statement A field goal kicker is 50m away from the 3.4m high goal post. If he kicks it...

AP Calculus help! Homework Statement consider y^2=2+xy a. show that dy/dx = y/2y-x b. find all pints (x,y) on the curve where the line tangent to the curve has slope 1/2 c. show that there are no points (x,y) on the curve where the line tangent to the curve is horizontal d. Let x and y be...

Is anyone here able to help me or point me in the right direction? Iron ores often involve a mixture of oxides and contain both Fe 2+ and Fe 3+ ions. Such an ore may be analyzed for its iron content by dissolving it in an acidic solution, reducing all of the iron to Fe 2+ ions and then...

Hi, i need help with my high school ap physics class. I'm using the college physics fifth edition book. Also are there any guides that can help me with the class with that book as the guideline. thanks

I'm new here, so sorry if I post this incorrectly! =/ I've scanned the lab, and the pictures are below. Homework Statement Well, the problem statement is in the picture, I guess... and our givens are that change in X is .35 meters, change in Y is -.91 meters...

Hi, I'm studying AP Physics B (Algebra Based) on my own, and I have a calculus based book: Physics for Scientists and Engineers by Serway and Jewett. I haven't taken calculus yet, and I don't want to spend $100 on another textbook (I got this one from a friend). Does AP Physics C...

I have just started AP Chemistry this year as a junior at my high school despite all peer protests against it. And I admit so far the course has lived up to it's reputation of being very difficult. I was rather ecstatic to come across this site where I may obtain the help I /know/ I will need...

I just entered my senior year in high school. I wanted to take AP Calculus BC and AP Physics C: Mechanics and AP Physics C: Electricity and Magnetism. But the school requires that there should be at least 3 students for an AP; only then will they give classes. Unfortunately, I am the only one...

Homework Statement This was on the 1982 AP Physics C E&M Free Response Homework Equations Electric flux through a closed surface = (Charge enclosed)/epsilon_0 The Attempt at a Solution This is the official solution given: I believe, however, that the electric flux must be undefined...

Homework Statement In the interior of a sphere is a charge -q. On the surface of the sphere are two charges, each q, as shown in this figure: Homework Equations Electric Flux through a Closed Surface=(Charge Enclosed)/Epsilon_0 The Attempt at a Solution This was a question in the 1982...

I see people say they get 5's on their AP classes their senior year. The exam for the class is at the end of the year and you apply for college in the fall. How do colleges know what you take your senior year and what you got, if the school year isn't over. Do they just ignore the last...

Is self-studying for AP Chemistry even possible?? I'm planning on taking Chemistry honors and they teach AP Chem material. However the teacher doesn't teach so I basically need to self-study for the hard tests, labs, and quizzes he gives frequently. Is it possible to spend only an hour each day...

What are the best Text/Review books for: Chemistry Honors, AP Calculus, AP Bio, AP Enviornmental Science?? I'm looking for good textbooks that are easy to comprehend and gives you a lot of practice and allows you to think a lot. Likewise, I would like simplistic review books that go right to...

AP Computer Science A VS. Chemistry Honors<-- highest level chem course Which class should I take Junior year? Which do you think will be the most beneficial for someone who is planning to apply to top UCs and Stanford (engineering/science major). Here are the pros and cons that I think...

I'm planning on taking 3 of the following science courses next year: Chemistry Honors (Highest Chem course at our school) AP Biology AP Enivronmental Science This year, I'm taking AP Physics B and I have A's for both semesters. I also have some other choices- AP Stats, AP Music Theory...

Homework Statement My questions pertain to #4b of the free response. Question: Excess nitric acid is added to solid calcium carbonate. The question asks to predict a balanced equation for this reaction. The Attempt at a Solution what I wrote down was: H+ + CO3 ----> H2O...

I took the Calculus AB AP test, and there were a total of 6 open-ended problems. Most of them I knew exactly how to do, but there was one in particular that gave me some real problems. We haven't done much on function composition, so maybe that's why I couldn't do it (but I have the feeling...

Homework Statement I'm doing #5 in this Ap Chemistry 2006 Form A Free Response Questions. Here's the link http://www.collegeboard.com/prod_downloads/student/testing/ap/chemistry/_ap06_frq_chemistry.pdf Homework Equations N/A The Attempt at a Solution I think i got the first 3...

I have a couple questions that I've been wanting to ask. I'm a Grade 10 student at a High School in Canada. Alberta, specifically. 1) My school does not offer the IB program (the Canadian equivalent to the AP program). Therefore, I have decided that I am going to take an online AP Physics...

Homework Statement t 0 10 20 30 40 50 60 70 80 v(t) 5 14 22 29 35 40 44 47 49 This problem is from a previous Calculus AP test. I have completed parts (a) and (c), but (b) is giving me trouble, so I will leave...

What is the best prep book (hardest) for AP calculus exam? Is it Princeton Review or Barron's? Are there better books?

Hi, I'm taking AP Chemistry right now and will be taking the Ap Chem Test on May 15. Recently I've found some Ap chemistry free response questions from 2002 to 2006 on [PLAIN]www.Collegeboard.com;[/URL] however they don't have the answer keys to those questions and I'm just clueless on most of...

Homework Statement A ball of mass M is thrown vertically upward with an initial speed Vo. It experiences a force of air resistance given by F=-kv, where k is a positive constant. The positive direction for all vector quantities is upward. Express all algebraic answers in terms of M, k, and...

I used this forum to get a lot of help with the first problem on my quarterly, but there are still 2 more problems and nobody in my class knows how to do them. I was hoping somebody here would. Here are the problems 1. A particle of mass m moves in a conservative force field described by...

Homework Statement Homework Equations The Attempt at a Solution

i have about 6 weeks to study, so, what should do? what prep books would you guys reccomend? how much time should i spend prepping everyday?

I need to study for the AP Physics C Mechanics Exam. Does anyone have the past exams for AP Physics C Mechanics starting from 1977 and their solutions? Please send them to [Email address removed by moderator] Thanks!

I just have a quick question, and if anyone could help, I would really appreciate it. Two lightbulbs, one rated 30 W at 120 V and one rated 40 W at 120 V, are arranged in two different circuits (parallel and series). The power source of both circuits is 120 V. What would the order of the...

Hi, I've been working on a review assignment for a while, and I"m very good at electricity, so this question has me stumped. Specifically, the 2002 AP Physics B, #3. Two lightbulbs, one rated 30 W at 120 V and another rated 40 W at 120 V, are arranged in two different circuits. (a) The...

Can you prepare for AP exams by study guides alone? For example can you prepare for AP biology from a PrincetonReview and Cliffs study guide? What's the best way to learn in less time, and still get a 5? PLEASE! I would like only encouraging remarks. Thank you,.

AP Free - Response Question HELP! iNCLUDES angular velocity and acceleration http://www.fayar.net/east/Teacher.web/Math/young/APPC/APPC%201999/physics_c_m_99.pdf Mechanics 3 is the problem I really need help on. I tried to find the tension of the string by setting it equal to mg + Iwr, but...

My daughter and a large portion of her class are struggling in AP Chem. Any has any link or have any beneficial suggestion for her. She is very motivated. She only has a grade of "C"

Is it possible to get a good grade in AP Physics test through self studying? with only based on honors physics class...

Rocket A has positive velocity v(t) after being launched upward from an initial height of 0 feet at t=0 seconds. The velocity of the rocket is recorded for selected values of t over the interval 0 <(or = to) t <(or = to) 80 seconds, as shown in the table below. t (seconds) 0 10 20 30...

Sorry I couldn't find any other forum to post this in. I'm currently doing the Physics B 1988 and 1984 tests, but I want to check my work. Does anyone have the 1988 and 1984 AP physics B answers in their possession and would be kind enough to share? :smile:

AP PHYSICS MIDTERM-EMERGENCY!.please help Homework Statement We are given an Atwoods machine with two known masses on either side. On one of the masses two objects of unknown mass are added. We have to perform measurements to determine the resulting acceleration. Then from the accelerations...

Has said in the past 4 days: -Our air is 70% oxygen Umm, actually it's 21% -A final exam in a chemistry course at Harvard or Standard had the question "What is the chemical formula for ice?" and 70% of the students got it wrong. I highly doubt it -We cook noodles in salt water because it...

i have a take home "test" that my teacher allows me to use other resources including my book. i really didnt understand kinetics. can you explain to me by answering these questions? 4)(c) Provide a molecular explanation for the dependence of the rate of the forward reaction on the...

OK, In high school, I'll be taking math up till AP Calculus BC, and in University, I'll be going in sciences, and will need a lot of math. I'm planning to buy a TI-89 Titanium. I want one, widely used, and will easily fulfill all my needs. Is this a good choice?

I am currently struggling in AP Physics B at school and find the textbook issued to me by the school (College Physics by Serway and Faughn Fifth Edition) a bit difficult to comprehend. I do not want to fail the class or the AP test and was wondering if there were any good, easy to understand AP...

Homework Statement A Cubic Box of volume 3.9*10^-2 meters cubed is filled with air at atmospheric pressure at 20 degrees C. The box is closed and heated to 180 degrees C. What is the net force on each side of the box? atmospheric pressure = 1 atm or 1.0*10^5 N/msquared Homework...

I'm not sure of whether or not I should waste 150 dollars to buy one of the most powerful calculators released by TI, the Ti-89 titanium. For all of you who own one or knows someone who does, how is it?? Right now I have a Ti-84, but I don't think it is as efficient as a Ti-89.. And yes, Ti-89s...

A flywheel of mass 42.7 kg is supported by an axle 1.65 m long, with two small wheels. The axle's wheels roll on an elevated track, part of which has a curve of radius, R = 15.9 m. If the flywheel has angular momentum 75.50 kg·m2/s, what is the maximum speed at which the system can take the...

Can anyone help me with problem 2 on the 2002 free response section for mechanics: The cart is mass m and has four solid rubber tires each of mass m/4 and radius r. Each tire has rotational inertia ½ ML2. The cart is released from rest and rolls without slipping from the top of an inclined...

No one in my AP Bio class has an A. Not a single person. The highest we've gotten yet is an 86%, and that's from the girl who studies three hours every day. Is this normal? We're nearing the end of the semester, and yet most of the class has Cs and Ds. It's the teacher's first year teaching AP...

Here is the actual physics problem. Below it I will try to explain exactly how I thought to figure it out. I would appreciate it if you corrected me If I made any errors. I am very sketchy on this one after being out for a week from class. http://img74.imageshack.us/img74/2937/img012brz6.th.jpg...

Okay, so I was browsing through an AP chemistry book because I really want to major in either chemistry of physics and want to take advantage over thanksgiving break to get ahead on chemistry because I really love it ^^. So I was wondering if someone could check my work on this problem. Thanks...