Lab Definition and 1000 Threads

(please help-still not solved) electrostatic force lab debate For lab, we had to do the following experiment, and me and my friend are not agreeing as to whether we have correct data: We had to charge a ball, then while holding that ball, bring it to a similarly charged ball that was hanging...

I've read many job postings at several DoE national labs in the United States, especially those dealing with Nuclear Science and Technology. Most of the postings state that they require someone with either a Nuclear Engineering or (Nuclear) Physics degree (or equivalent...I'm guessing some kind...

Hello! Im working on a design lab but need a little help on making it simple enough to use materials you would find in a standard physics classroom. Purpose: To develop a testable question that examines the relationship between 2 variables governed by the law of conversation of Energy...

Homework Statement Create a lab that proves the buoyant force equation; on a separate sheet of paper That is the directions Homework Equations F = pvg The Attempt at a Solution We haven't done anything to do with buoyancy, this is extra credit. I'm not sure what to do.

Any ideas what the inherent flaw in this experiment is? Homework Statement In the lab (actual lab), we combined copper(II) sulfate pentahydrate with barium nitrate to form barium sulfate (precipitate). Every group got a 115% or higher yield than stoichiometry would predict. Ba(NO3)2 +...

Hi! I need help and please do not delete this! What I need help with i cannot put into the template provided. I am sorry but I need help with a lab report. PLEASE I AM BEGGING YOU TO NOT DELETE THIS BECAUSE IT DOES NOT FOLLOW THE TEMPLATE! I REALLY REALLY NEED HELP! I need to find the...

I have to create a test harness for a lab. Part of the procedure is the pulling of a wire in tension. That is, the wire, when pulled, exerts resistance and thus will revert back to its original position when there is insufficient force pulling on it. I have to find a way to keep the wire in...

Hypothesis: The hottest part of the flame can be found at x located just above the u un burn gas Aim: By placing a thermometer at different points on a non luminous flame to verify the hottest part of the flame.

Hi In lab classes today I worked with diffraction gratings, but there is one thing I can't quite seem to understand. If we deal with ruled diffraction gratings, then they are blazed at angle such that the first order is reflected back at the same angle as the incident angle with a specific...

I'm not sure if this is the right place to post this, but it seems to be the best fit. Homework Statement I'm trying to write a lab report about how resistance varies with temperature. I used liquid nitrogen to cool a copper coil and a semiconductor(thermistor) from room temperature to...

i am a A student in my university , and i just want to keep it that way can anyone give me an idea for reaching a perfect physics lab report and thank you

Hi I will get straight on to the problem. I want my RC servo motor to run when there is no light from 0-180 degrees and when there is light the motor should stop. I have made a program which reads the voltage from sensor and a program to generate PWM signal witha a timer sepraretly as a...

1. Homework Statement given: a large block ramp, a smaller block (one side wood, other side felt), and a stopwatch refer to this picture: http://01.edu-cdn.com/files/static/w...SLIDING_01.GIF you don't know weight, or θ but I do have the measurements for the x and y axis 2. Homework...

Homework Statement During lab we measured the amount a spring was stretched when various masses where hung on it to verify Hooke's Law. We started with a 50 gram mass and then increased with 50 grams up until 350, for seven measurements. We then graphed the force and displacement. The lab...

Homework Statement We did a lab using a pendulum attached to a string about 1.12m long. We let it go from 20 degrees and counted 10 cycles and recorded how much time it took for the pendulum to complete 10 cycles. This lab is done assuming, there is no air resistance or any other force other...

Homework Statement I wasn't sure what section to post this in, but for my honors lab, i need to cite sources on values or theories that i include in my lab report like normal. Yet I'm having trouble finding a decent source for the speed of light and the index of refraction of air. I...

Hello there if anyone could help me out with this question I would very much appreciate it. (Note this is my first post) For my optics lab Fraunhofer(single slit) diffraction patterns were observed(measured distance to screen(x) and had readings for intensity in the y direction.) I...

Homework Statement So I have to wire the circuit and find R2 by only making another voltage measurement. We know that R3 is equal to 1000 ohms. Homework Equations The Attempt at a Solution So I was thinking that you can find the voltage of R3 and the find the current going...

The question to the lab is How can the spring constant and muzzle velocity for a toy ball launcher be determined through physical measurements and energy conservation considerations? My lab group and I took our pastic ball launchers(pretty much toy guns) and shot them straight up and measured...

I have a table of these 10 readings, [SIZE="1"]149.6 150.9 149.7 147.9 147.7 152.4 149.8 152.2 153.2 148.9 They were taken on an optical bench where the smallest unit of measurement was 1mm. I'm trying to calculate the +- error but I'm not sure how to. I've came across 3 methods...

I have been given the masses of 5 cups, each with a different amount of screws inside. I am asked to find the mass of a single screw. The cups themselves are all equal in mass and the screws are all equal in mass as well. I subtracted all the cups from each other to get a bunch of numbers...

Homework Statement I'm doing a lab, and I plotted a graph for the refractive index I got about 38.3 degrees and the material I'm working with is a glass block from reading two textbooks I came to the conclusion my graph might be wrong =/, because the critical angle for glass in air is...

I have been given the masses of 5 cups, each with a different amount of screws inside. I am asked to find the mass of a single screw. The cups themselves are all equal in mass and the screws are all equal in mass as well. I know you are supposed to subtract the cups from each other to...

The tevatron was shut september 30, 2011 at Fermilab National Laboratory. Basically the particle research is now done in CERN instead. This is bad news because I was planning to do an internship there for high energy physics. Does this mean that I shouldn't be applying for high energy physics...

Homework Statement So in lab, we had this setup where we had a string, two masses, and a tube. We attached one of the masses, then put the string through the tube, and attached the other mass on the other end. Then, by holding the tube, we were to spin a mass above our heads and time how...

Homework Statement A 15 kg block is against, but not attached to, a spring w/ k=150 N/m and pushed back a distance of .75 m. All of this is on an incline of 25 degrees, w/ coefficient of kinetic friction equal to .4. To top it off, there's a string pulling w/ a Tension of 20 N at an angle of 10...

Homework Statement Hey guys, I'm having a problem with my lab report write-up. The purpose of the lab is to find the value of g which should be around 9.8 m/s^2. This was found by releasing a cart from rest on an inclined plane and measuring the time it took to travel across a certain...

Homework Statement Hi there, I am asked this question in one of my lab calculation questions: Calculate the number of moles of I2 produced from 25 mL of the diluted KIO3 solution. Information that has already been obtained from my lab: -Molar concentration of dilute KIO3: 0.00241 + or -...

Homework Statement 1.The primary standard in thiss experiment is ammonium iron(II) sulphate hexahydrate, (NH4)2Fe(SO4)2*6H2O. Calculate the number of millimoles of ammonium iron(II) sulphate hexahydrate in a 1.0000g sample. 2.Give the balanced equation for oxidation of iron(II) ion by...

Okay, so we did a lab in class with Na2CO3 in BaCl2 first. The reaction formed a white precipitate, and I suppose the products are BaCO3 + 2NaCl. Not sure if NaCl is dissolved or not, or if it was the white precipitate I saw, but anyways, here's my question... We added HNO3 to that new...

Homework Statement We did a lab, where, in the first part we timed the period of a pendulum with varying lengths. In the second part, we timed the period of a pendulum with varying masses. I got the results that I expected to get. However, I do not understand two of the lab questions...

Hi what type of calculation errors should i do for my data on the capacitance discharge experiment. I had a voltage of 1.5V ,and I know the resistance, so the aim was to obtain the value of the capacitor, using the time constant RC=t formula. I done 4 trials , with the same voltage, (...

Hi All, I am a real noob with physics...not my best topic. Trying to do the best I can. Just want to run my noob logic past some people much better at physics than me. We did a lab in class and I think I have the correct answers but just want some confirmation. Homework Statement We...

Homework Statement given the specific heat of water is 1.00 cal/(g*Celsius), what is the specific heat in Joules/(kg*Kelvin) Homework Equations I realize that this is simply a conversion factor issue but I have NO IDEA how to even start it.. The Attempt at a Solution I know the...

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...

what would be some sources of error in a lab to find the refractive index of a prism? This lab was done by use of optical pins and glass prism.

Homework Statement In a lab experiment in my introductory physics class, we are asked to verify Newton's Second Law by taking data from an experiment and then comparing that data to a theory. We are given a cart of unknown mass m_{}1 is put on a horizontal track with a string attached over a...

Homework Statement I'm doing Millikan's oil drop experiment in a lab. I've got a set of measurements and all that, but in analysis of the data I can't seem to get values for the charges on individual drops that seem reasonable. I find that each drop is carrying between 10 and 300 elementary...

Hello, I am currently trying to come up with an idea for a project for my advanced physics lab. I have thought to do supercooling/heating, superfluids, and perhaps a rail gun. I have access to a very nice high-speed camera, so I would hope to find an experiment that will utilize it (the rail...

Best way to graphically draw vectors for lab report?? Homework Statement I've been feverishly trying to get my vectors drawn professionally for my lab report. The idea is that I need to find out the vector addition of two vectors graphically. The whole lab report is expected to be as...

1. What is the equation that defines momentum? 2. Using the equation for momentum, derive the SI units of momentum. Hint: In this Information Age, it should be easy to check your answer. 3. What is meant by an elastic collision? 4. What is meant by an inelastic collision? 5. What happens for...

Either through gamma decay into electron-positron pairs or straight old beta emission?

jk, ignore this.

Homework Statement I am trying to calculate the (Vo) for a ramp length from a horizontal decline marked at 20 cm. The ramp on top of a table has an angle of 41 degrees. I performed 3 trials releasing a ball bearing at the 20cm mark and averaged 53.3 . The table height is 87.3 cm. Isn't Vo...

Hi guys, I was doing my lab report and stumbled onto this question and I would really appreciate it if you guys could assist me on this. (: Homework Statement For a simple pendulum consisting of a mass M attached to a very thin light string of length L, in the absence of air resistance...

Homework Statement Using your understanding of projectile motion along with some background research on video analysis, devise a way to find the initial velocity of the tennis ball in the video just as it enters the bottom left of the screen. There is some important information for you to...

Homework Statement The object of the lab is to find the diameter of the bouncing ball shown in the pdf attached. We are working with Logger Pro. The only 2 pieces of information that we have is that the ball is on the surface of the earth, where Ay=-9.81 m/s2, and that the frames are 0.05...

I'm need some help understanding my lab concerning the muon. I'm trying to find information about the lab but I'm not find anything. I just would like to know the following:- 1.Does changing the saturated amp output change the timing of the FPGA? Does it and how? 2.What are the...

I have a lab report due a week from now. I want to go above and beyond of what is required of my class and to make it as professional as possible. This is to help me prepare for my future lab reports. I will be using word processor for equations and tables to the best of my ability. Would it...

The title really says it all.