Lab Definition and 1000 Threads

My teacher told me plan and design about 4 labs, okay the thing is I'm not sure about the layout of P/D for physics labs. I know there has to be expected results, I'm confused I don't know what to put there. My teacher gave me a lab manual to try and guide me okay, in the book at the end...

Hi PF, I have a transistor circuit with me with IFT . Please see that if this circuit can be used for AM generation. Also please suggest the design procedure and working of circuit. Please point out any errors in the circuit. I don't know if I have to supply separate carrier signal(I...

physics lab practical! (Centripetal Force) Homework Statement I need help to come up with a lab to figure out the centripetal Force of a cork as it rolls down the ramp. Homework Equations Fc=(mv^2)/rThe Attempt at a Solution i know that Fc= (mv^2)/r ,but i don't know if the velocity in the...

Help. We are cleaning out our lab and under the dust are all kinds of old lab gear which look very cool and expensive but can't figure out what they are for. Only clue is Stansi Chicago on some of them. Is there an old catalog or website I can go to so I can identify stuff? If I posted...

NASA's current report on their EAGLEWORKS lab for spacecraft propulsion http://ntrs.nasa.gov/search.jsp?R=20110023492&hterms=eagleworks&qs=Ntx%3Dmode%2520matchallpartial%2520%26Ntk%3DAll%26N%3D0%26Ntt%3Deagleworks The actual PDF is here: http://hdl.handle.net/2060/20110023492 EDIT: A mod...

Homework Statement I am soo lost and I need a theoretical equation for force in relation with distance. My lab is about how the force used to pull an elastic band back affect the distance a block travels after the elasticband is released. I got my results and made graphs and everything and...

Homework Statement Hi, I am answering Question #3, and using the formula and variables above scratch area as reference on how to answer the question. Could someone please have a look and see if the problem I worked out came out correct. Homework Equations The Attempt at a Solution First I...

I need to get a 100 on this last Physics lab assignment, but I can't get this "rod" ...problem :( Help would be appreciated (a) L1 = (65 cm)/2 = 32.5 cm "CORRECT" (b) [(149 kg)(1) + (149 kg)(65 cm) + (149 kg)(65 cm + 32.5 cm)] / (3)(149 kg) = (149 + 9685 + 14527.5) / (447) =...

Homework Statement Simplified lab procedure: I have 3 wells (from well-plate) one with Cu(NO3)2 and a piece of Cu(s) one with AgNO3 and a small piece of Ag(s) last one with Zn(NO3)2 and a piece of Zn(s) Salt bridges are soaked with KNO3 All of the solutions above have molarity of 0.10M A...

Homework Statement http://i.minus.com/i725WMEqetlYA.jpg Homework Equations y=Voy * t + 1/2(9.8)t^2 VFy^2=Voy^2 + 2gy Vox=Magnitude(Cos(Angle)) Voy=Magnitude(Sin(Angle)) The Attempt at a Solution No clue

I am so tired of writing lab reports. It's so ridiculously tedious and pointless. I've spent so much time doing things to fit into their stupid conventions. It's all monkey work - a monkey can do it, it requires too much time, and you don't learn anything. And of course, I'm stuck with two...

Homework Statement So I did an experiment today. The procedure is very simple. First I got a styrofoam cup with a lid, filled it with 50.00ml (V1) of water, assum density ρ = 1.0 g/ml Then measured the temperature of the water. T1 After that, I added 2-3 small pieces of ice, close the lid...

Homework Statement A ball is dropped down a hotwheels ramp attached to the end of a table. The ball is then propelled off the table and aimed at a pole with a "hoop". The ball must fall into the hoop. Find the height of the pole to make this possible. My instructor never gave us any numbers...

Hi, I'm currently doing a lab for gr.12 physics and it involves calculating the angle of elevation of a ramp by using information from ticker tapes. We're given a ticker tape and from that I made a position-time graph, velocity-time graph and acceleration time graph. Now I'm unsure where to...

I am an undergraduate student that started working in a research lab this semester and started out as a volunteer. It's my first research experience in a lab outside of the classroom and at this point, I have no idea how things are going. I work for the postdoc in the lab and have so far been...

Thermodynamics--Gibbs free energy: what can we actually measure in the lab? Hi everyone: I am getting back into thermodynamics after a long absence and have realized that there are basics I have never understood. If a patient person could either explain or direct me to an online resource...

I'm doing the prelab questions which require conceptual questions, not so much of math. The experiment is a typical ballistic pendulum lab - you'd shoot a paintball twoard a pendulum bob, and you measure the height the pendulum bob reaches after collision to calculate the related velocities...

Homework Statement Hi Lets say I heat 50g of water to 80°C. I take another 50g of room temperature water and put it in a bowl. Then I add this 50g of heat water to the bowl, the temperature in the bowl goes from 25°C to 48°C. What is the amount of heat absorbed by the room temperature...

THANKS, I ONLY NEED HELP #2 NOW, PLEASE 10/31/12 @ 9:10 pm bumpHomework Statement 1)If the fulcrum of a 0.1 kg meter stick was placed at the 40 cm mark and a 200 g mass at the 0 cm mark, would it be possible to balance the meter stick with a 200 g mass on the long side of the meter stick? What...

1. Physics Lab : Homework Statement design, run and report an experiment to calculate A) μs B) μk between a flat bottomed object and a flat surface ( include a section called "theory" in which you formally derive an expression for μs and μk ) im basically just having troubles deriving ...

Homework Statement For a conical pendulum: Construct a free-body diagram for the pendulum and derive an expression for the acceleration in terms of the gravitational field strength g, the length L of the pendulum, the radius r of the circular path of the pendulum, and the frequency f of...

there is a guy in lab and he's the most amazing guy ever... I've never met anyone like him. he is the most calm person ever... I can't believe it. and I have never seen ANYONE look so good in a lab coat... omg he could totally be a model, and if he modeled labcoats... omg... that would...

Homework Statement Okay, so I did a lab for my intro to mechanics physics class the other day and my lab report is due at 5pm tonight and I am having A LOT of trouble. The lab was a frictionless air track glider on a horizontal surface with a fixed mass M connected by a massless string to a...

http://www.foothillfalcons.org/ourpages/auto/2008/10/19/62799693/Rolling%20Ball%20Lab.pdf I am doing a lab in class where we set up a ramp on a table and measured the distance the ball travels on the horizontal part of the track. We then rolled the a marble down the ramp and did trials on...

In our lab we determined the charge to mass ratio e/m of electron by creating electron beam and making it spin in a circle using a magnetic field from helmholtz coils. According to the pasco lab manual for this experiment, the velocity of the electrons in the beam will be lower than theoretical...

Homework Statement Errors that might arise through this experiment: A puck upon a air table which makes certain dots with a specific length in between each of them for a 50 g mass and a 150 g mass, we need to find the acceleration, which i did and the coefficient of the friction that they...

Can we make gold from nuclear reaction in the lab? If yes, what are the nuclear equations?

Homework Statement Within this lab I was supposed to perform a virtual experiment and find the rate a ball dropped on the moon, mars, and earth. I have recorded all of my results in the table below. My problem is that my average velocity on Earth ended up as 8.9 m/s, and I thought that the...

Homework Statement I did a physics lab in high school the other week, and I did not look at the rubric for the lab report until now. The lab's purpose was to find the correlation between mass and swing periods, and length and swing periods. The rubric asks to graph T vs. m, T vs. L, and T^2 vs...

Can you please help with the following problems? Formulas would be greatly appreciated or talking me through a problem. Thank you! 1.) A mass of 40 kg suspended from a 48-cm long light string forms a simple pendulum. The mass swings through the lowest point of its trajectory with a speed of 2...

question 1) If "d" is the grafting constant "spacing between 2 slits on a grating), hwo can we obtain the ruling (number of grooves per meter) "D"? 2) Illistrate order of diffraction

How long does it take you to write a prelab or lab report for chemistry lab? And what grades do you usually get for these assignments? I spend like at least 2 hours writing a lab report because I want to get a perfect grade. Also, I spend quite a lot of time on a prelab too, because I'm scared...

Okay, I am working on my physics lab, and I have a few questions regarding it. First, we are asked to make a prediction: "Predict how you think the presence of a rubber band will affect the force felt by the force probe from the rubber band compared to masses hung directly from the hook?" My...

Homework Statement We did a lab in class where we had a cart and we had nothing on top of it. We added different forces at the end of a pulley to see how the acceleration differed with different forces. One of the questions on our lab was: We tried to keep the "mass constant". Why is this...

Projectile Motion Lab! PLEASE HELP THIS IS FOR TOMORROW. I am a high school student in Grade 12. We are currently doing projectile motion. We are using a marble. The teacher said that we should neglect air resistance because it is a very heavy marble. The marble, in the projector, is...

All that's left to write in my lab report is the conclusion, and I'm failing to understand what my professor is requesting of me. In the guidelines it says, "Compare your measurements to the expected values. State and discuss whether your results are in agreement with the expected...

I have some problems with my lab report. The teacher is dealing with us as expert in physics but I don't understand many things. She told us to find the uncertainty and percentage error , even though she didn't explain anything and I'm completely lost. I tried my best but I'm not even sure...

how are NO and HNO3 produced during the preparation of Nitrogen using NH4Cl and NaNO3 removed so that purer product could be obtained

Homework Statement I've not written a lab report since prep school and I need some critiques (thorough). see attached Homework Equations The Attempt at a Solution

Hi, I am working on a biology lab regarding the tree algea, pleurococcus and how its density on trees is affected by direction (N,S,E,W) and light received from each direction. Here is a screenshot of the data I have access to: http://tinypic.com/r/jugxa1/6 My question is: what would you guys...

Homework Statement I am not sure why our professor is making us do labs that are 6 chapters above where we are, but here it is: Compute Vout if Vin has an amplitude of 1V and a phase shift of 0 degrees. Homework Equations V=RI V=jωLI V=\frac{1}{jωC}I ω=\frac{1}{\sqrt{LC}} The...

Physics help please -- Sources of error in lab experiments Ok so i need some help with a few labs.. some I've tried out and a few i just can't get.. what i want to know is whether the limitations and sources of errors that i wrote down for each of these labs are correct or not and what i could...

Homework Statement A dot on the floor with a diameter of 2cm. A table that is at a distance of 46cm horizontally from the center of said dot. The table is 90cm tall. The meat of the problem: A ping pong ball rolls off an incline plane (a wooden board) that is on top of the table. The...

Hey, I'm wondering if there is a small reference book/sheet or so around for writing up experiments in undergraduate lab work, mostly in the error analysis? How did/do you go about deciding on how to calculate various errors? Thanks!

Homework Statement Would anyone know of a website where I can read lab reports, i.e. the abstract, discussion, results etc of physics experiments? Though non-physics experiments may be ok too. Just so I can get a feel for how they are professionally written. I've tried using a search...

I am a new grad with a very theoretically based B.A. in physics from a liberal arts college. I am devoted to physics entirely, but I couldn't bring myself to make the commitment to graduate school so soon. I'd like to try to find work in a physics field, but I don't know where to look. My...

Homework Statement This is for a qualitative analysis lab. The unknown solution can contain any combination of the following ions: Na, Mg, Ni, Cr, Zn, Ag, Pb, NO3, Cl, I, SO4 Tools available: Bunsen burner for flame test, centrifuge, hot plate, and all the test tubes and DI water you...

Homework Statement I was instructed to fill a graduated cylinder with approx. 90 mL of water and lower a marked tube into the water, taking note of the height of the air column above the water. Vibrating a 1024 Hz tuning fork above the opening of the column I found the shortest height of the...

I've never been good with labs and often have bad luck with them as well because what usually happens is equipments do funny things that only happens to me. My old TA tells me he purposely checked my equipments before the lab and sometimes, funny thing still happens and it frustrates him. But...

Homework Statement Hi,there is a question from my textbook: Name FOUR substances commonly found in the laboratory to prepare magnesium sulphate by reacting with dilute sulphuric acid. Homework Equations The Attempt at a Solution Here is my answer: Mg(OH)2,MgO,MgCO3,Mg(HCO3)2...