Ap physics Definition and 348 Threads

Homework Statement A has a charge of -2uC, and B has a charge of +3uC. Initially, there is no charge at point P. What is the electric field at point P due to charges A and B? Diagram given below, ignore periods; they were used solely for spacing purposes. ...(0,7m) ....P ....| ....|...

I need help with all of these. I am so lost on all of them and have been working for hours. Anything is so appreciated. _____1. A rock is dropped off a cliff and falls the first half of the distance to the ground in t1 seconds. It falls the second half of the distance in t2 seconds. What...

Hi, I will be dually enrolled at high school and a local state university next semester. I will be taking Calculus II, and have completed a basic algebra-based Physics course. Will I be capable of self-studying for the AP Physics C (both subjects) exam in May? Also, can you recommend any...

I've REALLY been trying to grasp physics, but I just don't think my brain is wired to think that way.. I'm much more of a Humanities person, haha. BUT, I do think certain aspects of the class are interesting and I really want to do well on the exam in May. I've got the College Board FRQ's...

Hello, I'm not sure if this is the right part of the forum to be posting this in (if it's not, feel free to move me), but I have a question about the double slit experiment. For my AP Physics class, a group of seven other guys and myself are researching the double slit experiment, both...

hey guys. so basically I am in Canada and taking AP physics C. for those you that don't know ap in Canada is self guided, unless the school is big enough to facilitate ap classes. any tips on how to study/ textbooks will be appreciated. Thanks.

Homework Statement See problem here: http://i184.photobucket.com/albums/x153/spl10246/problem.png Solution: http://i184.photobucket.com/albums/x153/spl10246/solution1.png http://i184.photobucket.com/albums/x153/spl10246/solution2.png Homework Equations p = m * v K = .5 * m *...

A ball of mass M attached to a string of length L moves in a circle in vertical plane. At the top of the circular path, the tension in the string is twice the weight of the ball. At the bottom, the ball just clears the ground. Air resistance is negligible. Express all answers in terms of M, L...

How to succeed in AP Physics B? HELP! Hi! I am new to the physics forum. I thought by signing up, I will get my answer, so here it goes! Ok, so I am in AP physics in my high school, I am a senior. I have trouble trying to study for physics! Like I really do not know how to literally get an A...

Homework Statement So i have to do a lab about circular motion we had to swing a rubber stopper around while holding a glass tube and when there was a mass hanging at the end of it "plot a graph so the slope of the straight line graph may be used to determine the mass of the stopper" we...

Homework Statement A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless surface. Air...

Homework Statement Derive an expression for Vmin, the minimum speed the ball can have at point Z without leaving the circular path. Homework Equations V≤(x/t) V≤(2∏r)/(t) V=√(GM1)/(r) The Attempt at a Solution I set 2∏r = to x since its in a circle. i then had V≤(2∏r)/(t) then...

Homework Statement A rifle is aimed horizontally at a target 100 ft. away. The bullet hits the target 0.75 in. below the aiming point. (a) Calculate the bullet’s time of flight. (b) Calculate the muzzle velocity of the rifle. (g = 32 ft/s Homework Equations delta x = vx * t...

Hey guys, I am new to the forums. I am currently taking AP Physics in my senior year of high school, and I am having some difficulty solving the following two problems: 1. A ball is shot upward with a velocity of 30ft/s. Another is shot upward a second later at 100ft/s. Where and when do they...

Hey everybody, I am in high school and have an interest in physics. I am wondering what the major differences are in these types of classes, usually. I am advanced for my age at math and I have a decent foundation on physics. Thanks!

Homework Statement Two stars of mass m1 and m2 are in orbit around their center of mass. If 2m1=5m2, and their orbital period is 120Ms, calculate the mass of the larger star, given that the distance between their centers is 1400Gm. Homework Equations F=GmM/r2 The Attempt at a...

a stone is dropped from a 75m building. when this stone has dropped 15m, a second stone is thrown downaward with an initial velocity such that the two stones hit the ground at the same time. what was the initial velocity of the second stone? please use kinematic equations. that is all i know...

Homework Statement A world-class runner can complete a 100 m dash in about 10 s. Past studies have shown that runners in such a race accelerate uniformly for a time tu and then run at constant speed for the remainder of the race. A world-class runner is visiting your physics class. You are to...

Homework Statement they keep telling me it is a simple problem, I've actually done harder problems of the same thing, but i just don't seem to get this one. A 15kg block sits on a 25kg block. The coefficient of static friction between the blocks is 0.408 and there is no friction between...

Hey PF, I'm in my senior year of high school and I'm taking AP Physics B this year as my school does not offer AP Physics C, and I'm wondering if I should supplement with extra studying as I plan on majoring in physics. I took calculus AB (equivalent of first semester calculus) last year and I'm...

ok so here's one: A helicopter is ascending vertically with a speed of 5.50 m/s. At a height of 155 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: The package's initial speed equals the helicopter's.] and here's...

I'm going to start college in the fall for EE and I made a 5 on my mechanics AP test and a 4 on my E&M AP test. I've been told that these are two weeder classes at my university and while I am confident I could make an A in both with hard work, I'm starting to think it might be smart to save...

Hey so I'm trying to self study for both AP Physics exams for May 2012, and I've been going through halliday & resnick 7th ed. as a text, however, I feel that this book isn't helping me so much for the mechanics side of things (as I haven't begun to study E&M stuff yet) for two reasons. First...

Next year, I will be a high school senior taking AP Physics C (which is calculus based) though I have not taken any other physics courses in high school (I have completed AP Calculus BC). My future teacher recommended that I read up on fundamental physics concepts so that once I enter the class...

Youtube Video for AP physics project--Advice/Opinions Wanted Hey I have to make a youtube video related to physics for our Final event of Physics Olympics. The objective is to make a performance related to physics, post it on youtube, and the scoring would be determined on the last day of...

Homework Statement I am having trouble building and coming up with ideas for my projects. 3 separate experiments: 1. Paper/Tape Tower 2. Paper/Toothpick Bridge 3. Paper/Wood Boat I have been criticized for my horrible crafting/building/drawing skills. If possible, please explain in steps and...

What are the difference between AP physics 1 and AP physics C mechanics exams? What are the main differences? If I already learned AP Physics 1 (kinematics, Newton's 3 laws of motion, torque, momentum, ucm, deformation of solids) and AP calculus AB, then should I take the AP Physics C...

I am supposed to take calculus next school year but I want to do some physics work over the summer. Can anyone provide me the the most common calculus problems in physics? I was thinking that derrivatives, integrals, limits, and infinate series would be the main ones but I am likely wrong.

Is anyone else having difficulty deciphering specifics in what to teach this year in Ap physics 1? The new course guideline is not straightforward like it used to be. For instance, I am in the waves and sound unit, and when you read through the big ideas, there is no actual list of what to...

I have never taught an AP class, and this year is my first year where my students will be taking the AP Physics 1 test. I took a look at the sample questions they have released and it got me scared and nervous. What are you doing to prepare your students for the AP test? Anything different...

Currently, I'm in the IB program and I've never taken any AP courses back at my old school. Since I'm planning on studying Astrophysics in College, I was wondering which one prepares me the best for things concerning subjects in math and physics? After doing some research, I found that IB...

Hi! I'm new, a sophomore in AP Physics 1! I'm having a lot of trouble!

I love doing water rockets and I normally do them in the regular physics classes. However, I would like to do a water rocket lab with added rigor for the AP level course. I was thinking about having them write a iterator to factor in the drag and try to predict apogee. That might be too much...

Homework Statement A highway is to be built between two towns, one of which lies 40.7 km south and 72.5 km west of the other. (a) What is the shortest length of highway that can be built between the two towns, and (b) at what angle would this highway be directed, as a positive angle with...

I have been given a project in my ap physics class where I am to explain how Bose-Fermi equivalence, tachyon, dilaton, green-schwarz anomaly cancellation and kahler manifolds relate with string theory. After an hour of research, I realized that I could not find even the slightest information on...

Homework Statement 2a) here: http://media.collegeboard.com/digitalServices/pdf/ap/ap14_frq_Physics_C-E-M.pdf Homework Equations The Attempt at a Solution Would the answer be: stays same -- increasing -- decreasing -- stays same? By Lentz's law, then right hand rule?

Homework Statement http://media.collegeboard.com/digitalServices/pdf/ap/ap14_frq_Physics_C-E-M.pdf #3 c ii) Homework Equations The Attempt at a Solution##\oint E\cdot dA = \dfrac{q_{encl}}{\epsilon_0}## To find q_encl would this be correct; ## q_{encl} = \int \dfrac{-\beta}{r^2}\cdot...

Homework Statement I have this packet and one of the questions state: The constant force F with components Fx=3N and Fy=4N act on a body while that body moves from the point P (x=2 m, y=6 m) to the point Q (x=14 m, y=1 m). How much does the force do on the body during this process? the options...

Hi all! I'm a new member and I hope I did everything right (in terms of formatting), given the "special" circumstance. Since this isn't a textbook problem or anything, but instead is about a project of mine, I won't be using the provided format...

For AP Physics C level, I am having trouble on deciding whether to use Ampere's Law or use Biot-Savart. Are there any hints/tricks for deciding what to use? For example, in solenoids i heard it's easiest to use Ampere's Law

Warning: I am aware of my careless actions but please help me out Ok, I'm a Jr in highschol, I have a 3.7 GPA I've taken honors math and I'm taking ap calculus next year so I'm good with math. I haven't dealt with physics since about 7th grade and my experience with it wasn't that bad. I was...

Homework Statement 1. An 80-kg man is one fourth of the way up a 10-m ladder that is resting against a smooth, frictionless wall. If the ladder has a mass of 20 kg and it makes an angle of 60° with the ground, find the force of friction of the ground on the ladder. Homework Equations...

Hi! I really need help answering this question. I am really bad at Physics and have no idea what I'm doing, so if someone could help me out I would really appreciate it! Thank you! Homework Statement 8. A bucket filled with water has a mass of 23 kg and is attached to a massless rope, which...

Hey, I've been struggling a little with rotational mechanics in my AP physics, any ideas for good resources to help? Thanks a lot in advance.

Hello It has come to my attention that the AP Physics B test is being replaced with AP Physics 1 and 2 for the 2014/15 school year. I'm currently a junior in high school enrolled in a CP Physics course, and I had planned to take AP Physics B in my senior year. However, with these changes, I...

Homework Statement A cubic meter of some material has a mass of 8600 kg. The block of material is lowered into a lake by a strong cable until the block is completely submerged. Find buoyant force on the block. Homework Equations Fb= p x V x g. p= density of fluid, density of water...

Ap physics friction force please help! Homework Statement A 1000kg car traveling at a speed of 40m/s skids to a halt on wet concrete where the friction force is 6000N. How far does the car slide before coming to a stop? Homework Equations F=mv^2 / r 1000 kg x (40 m/s^2) / r = 6000...

Homework Statement 1)The pressure on an ideal gas is cut in half, resulting in a decrease in temperature to 0.604038 of the original value and a change in the volume. Calculate the ratio of the final volume to the original volume of the gas. 2) Steam moves into the cylinder of a steam engine...

1. Homework Statement A 450 kg satellite orbits at a distance from the Earth's center of about 6.5 Earth radii. What gravitational force does the Earth exert on the satellite? 2. Homework Equations Gravitational force= G* ((mMe)/(r^2)) 3. The Attempt at a Solution G times mass...

I am a junior in high school who hasn't been exposed to any Physics class. I plan to take the exam the next school year since the exam is said to be very difficult. I really want to get a 5! Like I said, I will be self-studying for this exam as much as I need too, but I first need to read over...