Ap Definition and 669 Threads

A small block of mass m is on a horizontal frictionless surface as it travels around the inside of a hoop of radius R. The coefficient of friction between the block and the wall is mu; therefore, the speed v of the block decreases. In terms of m, R, mu, and v, find expressions for: a. the...

I have managed to get the worst teacher in the world for my AP Physics class. I was wondering how to do this problem: How much tension must a rope withstand if it is used to accelerate a 1400 kg car vertically upward at 0.70 m/s2? I really have no idea how to start it...:redface: But hopefully...

I am in 12th grade and currently in AP calc. I am kinda bored with it and was wonering if there is any good online material that can let me learn calc faster and go beyond it into hiogher maths? thanks

I am new to AP Chem and given a problem that I cannot begin to figure out how to compute. None of my calculations come up with the correct answer. How do I work through this? PROBLEM: A sample containing NACl, SA2S04 and NAN03 (the number are sub), gives the following elemental analysis...

I am in Chem AP in high school and it is rediculously tough. Although, I try to study the book by myself, but I always have questions. Too many to ask the teacher. I was wondering if you guys could clear those out. Thx a lot. 1. I read in the book that H20 is acid. But I always thought...

Hi, I'm taking ap physics b this year in high school and i found a site (http://apphysicsb.homestead.com/plo.html" ) w/ a lot of notes from various sites, would anyone know which of these notes provides the best information Thanks

sorry if this doesn't belong here - please feel free to move it to the proper section. im looking for a good book/reference material that would be helpful during a year of HS AP calculus. something that will supplement the school material and help me better understand it as we go through it...

I'll try not to rant too much--but I am sure most of you have heard of "Advanced Placement" courses and exams? Yes... Well ever since I first took physics as a 9th grade student, I became enthralled and realized I might want to major in it someday...well I thought I might take the AP course...

Completed Honor Biology in June and doing Chemistry in summer school. Can do only one science class in the fall. AP Biology or AP Chemistry this fall, which one? Thanks for your help.

Next semester, I will have the option of taking Calculus AB (AP) or Calculus 1 at a local community college. From what I heard, Calculus AB only covers topics in Calculus 1. I also heard that college courses are superior to AP courses and they are better preparation for future college...

Does anyone know a good site and/or book on ap physics? I'm taking it next year (senior year high shcool...) and i wanted to see what new material we'd be covering and maybe do a little reading. Thanks in Advance

A projectile is fired horizontally from a gun that is 63.0 m above flat ground. The muzzle velocity is 250 m/s. (a) How long does the projectile remain in the air? (in seconds) I got 3.96 s (b) At what horizontal distance from the firing point does it strike the ground? ( in meters) I...

Are A-levels or AP exam(s) is/are more difficult? Would someone do a honest comparison A-levels and AP courses. Is there a differnce in what covered in the Physics, other sciences, Maths, English, Forgein Language, History, Geography,Psychology, and...

Since senior year of HS is wrapping up, my AP physics class is having a party tomorrow and I don't know what to bring. I could bring cookies, but that seems a little plain. Does anyone have any ideas?

http://news.yahoo.com/s/ap/20060601/ap_on_sc/hot_arctic;_ylt=Ap5sztcWGDT3_X9KlVBicqGs0NUE;_ylu=X3oDMTA3MzV0MTdmBHNlYwM3NTM-" I don't know much about geology, but shouldn't this AP science writer have at least asked about the possibility that the location where these preserved tropical...

Hello fellow scienteers and mathematians :p, after talking with my computer science teacher (who I idolize ;)) I've decided to take AP Physics next year, he'd be my teacher for that course. He wouldn't tell me what I'd be taught in that course, figures, since he's a teacher and all that jazz...

Right now I'm reviewing old AP problems for the AP exam for Physics B tomorrow, and I can't seem to get a simple spring problem. I don't know why, but I can't just grasp it. Here it is: A block of mass 3kg is hung from a spring, causing it to stretch 12 cm at equilibrium, as shown above...

did anyone take the ap calc bc exam this morning? how did everyone do?

I have some questions (or checks) on some problems from a fatty packet our teacher decided to give us for the AP test. If I've already given a possible solution, see if I did it right. Thanks! Problem 1: A simple pendulum consists of a mass 1.8kg attached to a string of length 2.3m...

The following remarks were written by me to my sons' high school community some years ago. I believe they are still relevant. They were then considered so heretical that they were not acceptable as publishable. The idea of posting these remarks was inspired by Zapper Z's extensive and...

Recently my AP Physics class had a test on energy. The following is one of the questions verbatim from the test. I just can't work out the problem to any of the choices, let alone the "correct" choice. The problem is: Movers want to set the ramp of their truck so that the work they do against...

hi, I'm in the AP Physics for high school, and I've been wondering about an idea about constructing a lab... i need some things i can test, because the assignment is to create a lab on your own w/e it is... (kinematics, thermo, w/e AS LONG AS it's not electrical or uses wires)... any suggestions...

statistics and probability

My midterm is basically going to simulate a real AP exam. So I was wondering if anyone knew where I can get previous year's AP physics C Mechanics exams so I can practice. Thanks a lot.

If dy/dx = 2y^2 and if y=-1 when x=1 then when x=2, y=? I have no idea how to even start this probelm, i never seen this on any previous practice tests i thought about using the equation y+1 = dy/dx (x-1), but that's probably wrong and not going to help...

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

I had a question regarding the AP test - anyone who knows please answer. I answered a section of a problem regarding a Vector (asking for direction and magnitude), and my answer was as follows: 802.5N @ -333.5 degrees The answer was 802.5N @ 26.5 degrees Any physics teacher should know...

This problem is KILLING ME! The drawing shows a baggage carousel at an airport. Your suitcase has not slid all the way down the slope and is going around at a constant speed on a circle (r = 10.8 m) as the carousel turns. The coefficient of static friction between the suitcase and the carousel...

I'm a high school sophmore. I have an A in AP Calculus AB and a B in AP Chemistry. Next year, I want to do an Independent Study on AP Physics C since my school does not offer AP Physics C. I will also take AP Calculus BC(my school offers this)next year. I have had no previous high school level...

This somehow seems easy, but I cannot get the jist of it. f(x) = x^3 - x^2 - 4x + 4 The point (a,b) is on the graph of f and the line tangent to the graph at (a,b) passes through the point (0,-8) which is not on the graph of f. Find the values of a and b. okay so, I've spent about an...

Alright this is my first post so let me just say hi! The problem reads something like this... There is a table with a block, m2, resting on the surface. Another block, m1, is resting on top of the first block. m2 is connected to a string which goes over the table top, through a pulley, and...

Hi everyone, I need some advice on what to do about my AP Physics course. Last year when I was taking my CP Physics course as a junior in high school I got sick (am still battling now) and I self taught 2/3 of the material because I wasn't able to attend school regularly until the last...

I'm taking AP Physics C at school and plan on taking the AP test in May. I want to get my AP prep. book early so I can follow along with the review in the book alongside of my studies at school. What has anyone found to be the best review book? (i.e. Barron's or Princeton Review) I know that...

Does anyone know where to get good lecture notes for either the AP Calculus AB or BC exam? Or a review packet of the curriculum? Thanks for your help!

Does anyone know where to get good lecture notes for either AP Physics B or AP Physics C - Mech & E&M? Or a review packet of the curriculum? Thanks for your help!

PHYSICS PROBLEM--should be easy for AP students 1. A football is kicked with an initial speed of 22m/s at some angle above the horizontal. It travels 45 meters horizontally before hitting the ground. a. At what angle was the ball initially kicked? b. How long does it stay in the air? Can u...

Hi, I'm new to this forum and I hope I can find some help with my AP Physics class! I find the subject really interesting, I just have a hard time applying it. Also, I don't really know the people in my AP Physics class, so it would be awkward to ask them for help. Anyway, last week we did...

7. A block of mass m is at rest on a plane inclined at an angle of 30o with the horizontal as shown below. Which of the following statements about the force of static friction is necessarily true??A. s greater than/equal to g?B. s equal to tan ?C. s less than/equal to tan ?D. s...

1. The net force acting on an object is suddenly reduced to zero and remains zero. As a consequence, the object A. stops abruptly B. stops during a short time interval C. changes direction D. continues at a constant...

Question 1) Graphically determine the resultant of the following three vector displacements: a) 34m , 25 degree north of east b) 48 m, 33 degree east of north c) 22m, 56 degree west of south. Ax = 30.814 Ay= 13.369 Bx= 40.256 By= 26.142 Cx=x 12.30 Cy= 18.238 I added the x...

Did I do this problem right? I didn't use some of the info... Oh well... if it doesn't, it's moveable. :) Hello Ladies and Gents, I'm new on here, and I was wondering if someone could help me with my physics HW; And forgive me if I don't get it right away. :) Here's the problem... A...

hi, i am having problems on these questions below.. if you can spend some time doing these and help me, it will be greatly appreciated. If you get a chance, showing the work won't hurt :) 1. In 1940, Emanuel Zacchini flew about 53 m as a human cannonball, a record that remains unbroken. His...

hi, i am having problems on these questions below.. if you can spend some time doing these and help me, it will be greatly appreciated. If you get a chance, showing the work won't hurt :) 1. In 1940, Emanuel Zacchini flew about 53 m as a human cannonball, a record that remains...

Hi, our teacher requires us to do problem solving questions, which means a full one page report about the situation. I got stuck on this part and would like some advise. P: A person driving her car at 50km/h approaches an intersection just as the traffic light turns yellow. She knows that the...

im a sophomore in high school, and am being offered a good number of ap and dc classes (some of which they have waived prerequisets for so they may be alittle trickey) i plan on taking as many as possible, and I am sure youll get questiones about my homework once in a whie... but, how usefull is...

Anybody know any good books for AP Physics B and AP Physics C. Also, does anyone know of any good books for the Physics Olympiad? Thanks.

http://www.msnbc.msn.com/id/8474930/ NEW YORK - Weeping in court as he learned his fate, former WorldCom boss Bernard Ebbers was sentenced to 25 years in prison Wednesday for leading the largest corporate fraud in U.S. history. It was the toughest sentence imposed on an executive since the...

I have to do a project for my AP physics class. It’s due in about a week and I have no clue what to do for it. I’d like to do something that has to do with electricity but I’m open for any ideas. If anyone has done or knows about a fun physics experiment, please tell me about it. It can’t be...

I have been working on the 2005 AP Physics B Free-Response Questions from Form B. Question 3 is giving me a lot of difficulty, and I am not sure if i am going in the right direction. The question can be found here...

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...