April 20, 2014

Search: Physics...NEED HELP

Number of results: 161,749

levers (need to know about torque), collisions (need to know about momentum/impulse), verifying that force=mass*acceleration those are three ideas off the top of my head, need to know the purpose of the project and how much physics you know to make a better list.
Saturday, May 12, 2012 at 11:02am by Jay

Physics question - I NEED HELP PLEASE
need rules of physics here. volume of water if trough is full = (1/2)(3)(5)(8) = 60 cubic metres from here on it is physics
Wednesday, March 19, 2014 at 1:24pm by Reiny

i need a topic for an eei (extended experimental investigation). i want a simple experiment that i can do. however, i need one that has a lot of physics behind it, and has a lot of information on the net about it. it can be on any topic within physics. if anyone has any great ...
Saturday, May 19, 2007 at 10:35pm by shamstar

Then it would help the tutors know what you need if you let them know. As it is, these posts look as if you want someone to do them for you. Please let them know what you know and what you need help with. If you post your question AND what you know about solving it, even if ...
Saturday, February 12, 2011 at 5:46pm by Writeacher

Yes. You need to do some algebra to get the answer. You don't need any physics.
Sunday, November 21, 2010 at 11:14pm by drwls

i need 1 question each of this following straight ine motion, free falling body, projectile in the dimension and projectile in two dimension... i need it badly.. our prof need a good example of I
Sunday, March 13, 2011 at 7:18am by matt carlo

Physics Really Need Help Please
hi do you still need help? lol i'm in kaminskys class too
Friday, November 7, 2008 at 9:34pm by Hanie

i need to investigate nichrome wire and a globe and i need to state which is an ohmic conductor. what will my method be??
Sunday, August 12, 2012 at 4:23pm by gontse

Physics- i need to know how to do these problems
do you still need the computation for this one?.
Sunday, October 29, 2006 at 1:53pm by cheerie

Movies and physics
Hello...I need to find a modern day movie that has at least three or more physics mistakes. I need to prove they are well, is Zeno's Paradox a credited/valid source to use to prove something such as the everlasting gobstopper, from Willy Wonka, is physically ...
Wednesday, December 19, 2007 at 8:26pm by Physics!

A physics problem
Hello...I need to find a modern day movie that has at least three or more physics mistakes. I need to prove they are well, is Zeno's Paradox a credited/valid source to use to prove something such as the everlasting gobstopper, from Willy Wonka, is physically ...
Wednesday, December 19, 2007 at 9:38pm by Physics!

You may have got this question in a chem glass, but it is really about physics. E = h*frequency is the equation to use h is Planck's constant, which you were given. Solve for the frequency, in s^-1 (also called Hz) You don't need to use the speed of light to answer this ...
Thursday, October 21, 2010 at 12:57pm by drwls

I need to make a holder for a raw egg out of straws so when it is dropped from 8 feet. it will not break I need design ideas.
Thursday, October 8, 2009 at 6:55pm by Deb

You need to know the horizontal velocity component at time zero. You also need to know if it starts out between the walls, or somewhere else.
Thursday, November 19, 2009 at 6:41pm by drwls

Math plz fast i really need it
to get a 3, you need 2,1 or a 1,2 to get 4, you need 1,3, 3,1;2,2 b. to get 5, 4,1;1,4;2,3;3,2 to get a 9, 5,4;4,5;6,3,3,6 equal probablility for 5 and 9 c. 5 you need 4,1;1,4; 2,3;3,2 8 tyou need 6,2;2,6, 5,3,3,5, 4,4 d. and so one.
Thursday, February 21, 2013 at 5:20pm by bobpursley

Ok thx. Sounds good. I already found the velocity so just need to get the pressure. Will do the math. And I need help on the other question you helped me on yesterday =P
Thursday, November 11, 2010 at 12:25am by Daniel

If you don't need the radius, you don't need the diameter
Thursday, April 12, 2012 at 4:53pm by drwls

Please help!!! Physics test!? I have a physics test tomorrow on projectile motion, and I don't feel ready for it. I'm having trouble in the class and I need to ace this test. The problem is I get confused when I get a problem. I don't know how to proceed. After I read the ...
Tuesday, October 9, 2012 at 5:32pm by Mike

I need help with finding contractions. I need to find 3 will/shall contractions (I need 9 but I already have I'll, She'll, He'll, They'll You'll, We'll). Then I need 6 is/has contactions (I also need 9 and I have She's, He's, It's). Then I need 11 not contractions (I need 18 ...
Thursday, January 8, 2009 at 10:59pm by Nellie

They have given you more information than you need. Since they tell you the spring constant (k) and deflection (X), you don't need the weight (Mg) or mass, (M) E = (1/2) k X^2 = (1/2)*30*(0.5)^2 = 3.75 Joules
Tuesday, January 15, 2013 at 10:06pm by drwls

Lee Kite just a fellow question. Why do you need all this help on Physics? You need to do your work on your own. Jiskha Hmework Help Corporations should ban you. Good Day.
Wednesday, October 3, 2007 at 8:43pm by sydney rae heller

Need Help...physics
I dont appreciate you posting questions under multiple names. Stop it now. I cant get a grip on what you need if you pretend to be many students. I wont play that game, it is a waste of time.
Wednesday, January 27, 2010 at 10:35pm by bobpursley

by the way the ratio of AL/FE is about 136/46 (you don't need units here because all you need is the ratio)
Saturday, November 27, 2010 at 7:50pm by Damon

Its a geography class but i guess it is a physics question, I believe you do need to know your weight, i just need help setting the problem up.
Thursday, August 2, 2012 at 7:09pm by Jessica

I don't need to know my hang time. If you need to know it for yourself, just follow the directions. Surely you have some kind of time measurement.
Thursday, September 11, 2008 at 11:03pm by DrBob222

after getting vf, you need to calculate the KE of the putty/block, and set that equal to the compressed energy in the spring 1/2 k x^2, and solve for x. I think you need a tutor, you appear to be totally lost.
Thursday, April 29, 2010 at 8:27pm by bobpursley

You need the wind area for the force. The Bernoulli equation will only give you the pressure difference between the top and bottom of the wing. You also need the air density, which varies with altitude.
Friday, March 25, 2011 at 2:25am by drwls

100g water, need to raise solution of sodiun acetate 20 degrees. how much energy does it require and how much sodium acetate will you need? Enthalpy of crystallisation is -260kJ. How do I work it out?q= Cp n ∆T? Do you use the density of SA any where? it is 1.528g. I ...
Monday, April 11, 2011 at 6:48pm by Jannis

science (physics) Need to solve this today please!!
Um PLEASE help me out on this part c..seriously ...I did show what I did for a and b and I just need to know how c would work...
Saturday, September 29, 2007 at 8:01am by ~christina~

When t = 0, a = 0 You need an initial velocity to solve for k using the velocity at t=3. You also need to integrate a(t) to get V(t). The integral will have two arbitary constants: V(0) and k.
Tuesday, March 30, 2010 at 11:57pm by drwls

What is 272sin32? You need to get this down quickly, triangle trig. Physics depends on it.
Sunday, December 26, 2010 at 4:13pm by bobpursley

please answer if you know this cause i need this for my homework due tomorow and im doing badly in physics
Sunday, December 6, 2009 at 10:41pm by henry

AP Physics B
Then you are in great trouble in Physics B. You need to review periodic motion in your text.
Wednesday, December 16, 2009 at 4:57pm by bobpursley

Then you need a tutor. Math is the language of Physics. It will do you no good to copy our thinking.
Friday, June 24, 2011 at 5:37pm by GuruBlue

what is the answer to the following 2 physics equations: a=(v, little f in right bottom corner -v little 0 in bottom right corner /t. I need it simplified to what t is and T^- 2n into the square root of L/g I need the equation simplified to get g
Friday, April 29, 2011 at 1:51pm by Kelli Kenyon

You can calculate the spring compression X from 66.9 J = (1/2)kX^2, but you don't need it. 66.9 J is the thermal energy increease. They gave you more information than you need to answer the question
Tuesday, November 23, 2010 at 6:16pm by drwls

i need three different project topic in physics
Saturday, April 14, 2012 at 8:30am by Joanna

i need three project topics in physics. Help please
Saturday, May 12, 2012 at 11:02am by Joanna

Science - Physics
Thanks for the suggestion, however I have to complete it using small models with plasticine etc. It doesn't need to be highly accurate, I just need something that can show a difference between the 2 types of crashes I suppose.
Monday, August 3, 2009 at 3:39am by Chris

Most sphygmomanometers use mercury. How tall would the manometer tube need to be if it were filled with water instead? It might need to measure a blood pressure as high as 300 mm Hg.
Tuesday, November 9, 2010 at 7:18pm by Jamie

m nt good at physics .....i don't understand physics so well .....i try to do the problems but they don't make sense at all i ask it here ...and wen someone helps me ...i understand them and then only write them ......m not cheating .....i just need help to understand ...
Tuesday, May 15, 2012 at 7:37pm by myra

You need to specify the acceleration and also provide the missing initial speed following the word "of". You will also need the mass of the proton, which you can always look up.
Friday, February 26, 2010 at 8:55pm by drwls

Physics help!
I need to know all of the equations for WORK problems (Physics). I'm not sure where to find them. if someone could help id appreciate it.
Sunday, December 7, 2008 at 8:06pm by Jim

Numbers without dimensions are useless. That is one of the first things you need to learn about physics.
Tuesday, March 15, 2011 at 9:59pm by drwls

for speed you only need a speedometer. for velocity you need a speedometer and a compass.
Wednesday, June 30, 2010 at 12:54pm by Damon

You need to provide dimensions with your numbers. That is one of the first things you should have learned about physics.
Sunday, September 9, 2012 at 11:31pm by drwls

11th grade physics
i cant think clearly i dont understand physics and my paper is due tomorrow i really need help please
Sunday, October 5, 2008 at 8:34pm by JESSICA!!!!!!!!!!!!!!!!!

physics 180A
You need to include units with your numbers. That is one the first things you should have learned about physics.
Saturday, October 1, 2011 at 8:13pm by drwls

Forget about the weight data. You would need the lift coefficient and wing area to get the velocity from the weight. The plane travels 1.6*2*pi*5.6 meters in 7 s. That is all you need to compute the speed.
Saturday, December 10, 2011 at 12:34pm by drwls

Michelle: You need a book I know of. Go to any college bookstore, or BarnesNoble, and take a look at Schaum's Outline series, Physics. There are a number of titles in this series, I like the Physics for Scientists and Engineers, but that may be a bit mathematical for you, so ...
Saturday, November 20, 2010 at 8:29pm by bobpursley

Enough speed such that the initial kinetic energy (1/2)MV^2, equals the potential energy gain at maximum elevation, M g H. M cancels out, so you don't need to know the mass. You DO need to calculate H. Use trigonometry.
Sunday, November 22, 2009 at 12:42pm by drwls

The equation you need can be found at The mass will cancel out when you insert (1/2)M R^2 for the moment of inertia. r in the reference above is the distance from the support point to the rotor. wp is the precession ...
Friday, March 25, 2011 at 7:18pm by drwls

You need to throw the dang formulas away and learn physics. I suggest go thru the exercise problems in your text. You are, in fact, lost.
Monday, May 11, 2009 at 7:59pm by bobpursley

physics question
need physics help here.
Sunday, October 3, 2010 at 4:40pm by DrBob222

Eric, I'm not sure what you need, but if it's Physics tuition (or Math)try Khan Academy. Hundreds of short vids. Hope Jiskha don't mind this post.
Tuesday, September 18, 2012 at 7:05am by charlie

Physics 2
You need to get a basic math tutor immediately, or drop physics. The language of physics is math, and you are operating at an algebra I level, at best. You will not succeed. speed-1.8=30/11 speed= 30/11 + 1.8= 4.5m/s Physics comprehension will demand much higher levels of ...
Friday, February 19, 2010 at 12:21am by bobpursley

You need to know the distances above ground at which the ball was kicked and caught. Knowing those distances, you could use conservation of energy. You would need to ignore aerodynamic forces to get an answer. This assumption will result in a significant error.
Thursday, January 26, 2012 at 10:32am by drwls

You may need to drop physics, the language of physics is math, and this is a pretty basic algebra I skill. 0=0+12sin20*t-4.9t^2 0=t(12sin20-4.9t) so either t is zero, or t is 12sin20/4.9
Wednesday, October 13, 2010 at 11:02am by bobpursley

Do you have any idea what the voltage difference is? You need to divide that by the membrane thickness to get the E-field. You also need to divide by the dielectric constant of the membrane, which I believe is about 5.
Saturday, February 13, 2010 at 9:34pm by drwls

1.70 what? You need to include units. What does 3.5 0m/s mean ? Divide tangential acceleration by radius R to get angular deceleration. You may not need the 3.5 and 1.70 numbers at all, whatever they mean.
Tuesday, February 14, 2012 at 11:11pm by drwls

i got answers to some of the questions Q1: 3.3 mins Q2: ?km <- still need help with Q3:23.3 Q4:?km still need help with
Sunday, April 8, 2012 at 7:10pm by kelly

Physics ?
Why would I need a torque to move straight? why would I need any force to move at constant velocity? I am wondering who assigned this question.
Saturday, March 15, 2014 at 9:20pm by Damon

11th grade physics
Jessica -- I never took physics, but I do understand Bob's answers (questions) to your question. Of course there's physics in football. Think about Bob's questions to you -- and then write your paper. There comes a time when you need to stop procrastinating and go with the ...
Sunday, October 5, 2008 at 8:34pm by Ms. Sue

Hello! I live in Mexico, and I have a couple of questions I asked on Y answers, both English and Spanish, and have gotten no reply, and I need to turn this in for my bimonthly exam in physics this Monday. I need to calculate the volume and surface area of two of the pyramids ...
Sunday, September 30, 2012 at 12:00am by Gabby

tough physics question
I need to see your thinking. These are very basic questions about computing magnetic flux from current in a solenoid, and from the changing B calculating the emf generated using faradays law. I need to see what you are missing.
Monday, March 31, 2008 at 2:36pm by bobpursley

Physics and movies
we are supposed to relate physics to movies, and state mistakes or errors found in the movies based on physics principles. I am trying to do Willy Wonka the 1971 version...I need help trying to prove that Violets becoming a blueberry is impossible and an error due to physics, ...
Saturday, December 8, 2007 at 2:51pm by Please McHelp me!

You need to keep to that flight direction no matter what the distance is. All they ask about is the direction that the plane flies. It is not unusual for homework and test problems to give you more information than you need to solve a problem. They are trying to prepare you ...
Saturday, February 28, 2009 at 12:09pm by drwls

What is the container volume? How much is in it? Is it a gas? What does the 900k mean? Is that supposed to be the temperature? (If so, it should be written 900 K) This is presumably an exercise in using the ideal gas law, PV = nRT, but you need more information (You need n and...
Wednesday, July 7, 2010 at 12:23pm by drwls

Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with this. All I need is a formula, please. :)Thank you! Here it is: A skier with a mass of 60.0 kg pushes...
Thursday, March 14, 2013 at 12:09pm by Anna

The last thing you need to see is an equation. You are adding three vectors. Compute the vectors, and add them with vector math, the result will be along the direction of the diagonal. I suspect you are having breaking vectors into components, and need to understand that.
Friday, August 13, 2010 at 8:12pm by bobpursley

I need to do a project on any one cell organelle and i have started on lysosomes. Its a powerpoint presentation and i need to present it tomorrow. In the procedure packet it says that we need to mention this-"a works cited slide" what does it mean??? what do i need to do? ...
Thursday, October 16, 2008 at 6:22pm by Jessica

Physics...seriously seriously need help esp part C
Thanks =D but I currently don't have any chemistry questions but rather a complicated physics question
Tuesday, November 13, 2007 at 10:07pm by ~christina~

science- physics helppppp ! i badly need one T___T
how is physics related to food technology and everything related to foods ?
Tuesday, June 5, 2012 at 7:33am by angelique

A basketball player, standing near the basket to grab a rebound, jumps 73.6 cm vertically. How much time does the player spend in the bottom 15.4 cm of the jump? I've been told that I need to use the height of the jump to solve for V. Then I need to use that V in the equation...
Wednesday, October 10, 2007 at 3:23pm by Lindsay

I need to make a mousetrap car for my physics class. I have to make it so that it can stop, but I won't know at what distance until the testing day. How should I do it?
Monday, September 27, 2010 at 4:09pm by Heather

physics question
need physics help
Sunday, October 3, 2010 at 4:40pm by DrBob222

I have a problem where I need the force exerted by an object onto a scale. The object weighs 22 lbs. What is the force? Do I need to multiply that by 32.2 ft/s^2? What are the US units for force and what is it in this situation?
Friday, February 25, 2011 at 10:16pm by Morgan

First, you need to define your goals. Then you need to determine what steps and resources you need to reach these goals. Estimates of time needed for the steps and/or gathering the resources need to be made. All of these need to be synchronized with daily routine tasks like ...
Saturday, July 18, 2009 at 4:49pm by PsyDAG

So... The task is to evaluate the design of three types of car tires, and explain how each type differs to maximize performance. Physics terminology is to be included in our report. -------- I just need a starting point. What types of tires do you recommend I research and what...
Saturday, February 16, 2008 at 8:09pm by Lucy

Please help!!!!!Physics
Not enough info. You need to specify the directions of the masses from each other. The answer is very different if they're in a straight line, as opposed to at the vertices of an arbitrary triangle. In any case, recall that F = GmM/r^2 Those are the magnitudes of the vectors. ...
Thursday, September 29, 2011 at 10:45pm by Steve

I just Really need help when it comes to physics so i'd REALLY appreciate it if someone helped me
Sunday, June 10, 2012 at 6:40pm by yasmeen

For DrBob
Let me know if that is all you need. If you need something additional, please itemize what you need done. Also, I will need to know if you digested the sample or if the samples were placed in solution for you and you were given the prepared sample to which you added the 1-10 ...
Saturday, November 17, 2007 at 3:45pm by DrBob222

maths 4th grade
hello i need help with time table i really need help can you help because i really need help and i aslo need help with reading
Friday, June 26, 2009 at 2:19pm by josh

You don't need the velocity to answer the question. You need the acceleration at a particular time. This is not a constant-acceleration problem. The acceleration is the second derivative of the x(t) function, a(t) = x''(t) = 7.00 - 15 t Multiply the value of a at 3.45 s by the...
Tuesday, September 22, 2009 at 1:55am by drwls

You need more information. You need the specific heat of the glass in order to calculate the specific heat of the liquid. The information you provided will only tell you the ratio of speciic heats
Monday, December 13, 2010 at 11:46pm by drwls

Let the image distance be Di 1/45 + 1/Di = 1/15 1/Di = 2/45 Di = 22.5 cm You do not need to know that the lens is double convex. All you need is the focal length.
Thursday, May 9, 2013 at 10:46pm by drwls

I need to calculate this using the integral formula which is: W = - ∫ F dl = - q ∫ E dl Where E = 1 / 4piε0 * R(vector) / R^3 I am just confused in what E-field I have to use and do I need to calculate X,Y & Z separately??
Saturday, May 12, 2012 at 6:20am by Filip

In physics, to arrive at numerical answers, you need numerical input data. You have not provided anything but some incomplete sentences. You should consider dropping out of the course.
Tuesday, October 4, 2011 at 8:02pm by drwls

People need to put others down so they feel better about themselves. They need to attack someone through a computer screen. This site is for people who need help answering questions, am I wrong? And yes even though it is years later, if any other students need help they can ...
Tuesday, February 17, 2009 at 7:15pm by WithLisa

Physics Help NOW!
There are no physics tutors online right now. You'll need to be patient.
Tuesday, August 2, 2011 at 5:20pm by Writeacher

Does the temperature stay the same? Or is this an isentropic (adiabatic) expansion? They need to tell you. All you know is that pressure is decreased by a factor R2/P1 = 7800/10130 = 0.770 If the process is adiabatic, they need to tell you what the gas is. (The "gamma" ...
Saturday, March 3, 2012 at 10:22pm by drwls

your g formula is most wrong. centripetal force= gravitationalforce m*v^2/r=G*Me*m/(radplanet+ heightabove)^2 now, note you do not need the mass of the satellite, however, you need the mass of the Planet. velociy= 2PI (radplanet+heightabove)/period
Friday, March 2, 2012 at 3:19pm by bobpursley

Physics 204
You don't need the sliding friction coefficeint to answer this; you need the maximum friction force possible without sliding, which is calculated with the static coefficient, Us. You also do not need the weignt (23 lb); it will cancel out. Let W be the weight and A be the ...
Monday, January 21, 2008 at 10:57am by drwls

Cyrus's suggestion for #3 is good, except that you need to have the first comma come AFTER "who," not before it. In #1, you need a comma after "Normally." In #5, you need a comma after "tale." In #7, you need both verbs to be "may" -- not "can" and then "may." Also, you need a...
Tuesday, February 26, 2008 at 6:32pm by Writeacher

We need the mass of each block. We also need to know exactly what you mean by 60 degrees. Is that 60 degrees from vertical, or 60 degrees from horizontal?
Friday, September 24, 2010 at 4:58pm by Ron

Deciding on a H.S. Science Course
I'm currently a sophomore, and I need to plan a science course for next year. Do you know if colleges require physics? Would a college prefer to see physics on my transcript in oppose to Environmental Sciences or Astronomy? Thanks!!
Monday, February 16, 2009 at 5:43pm by Coralie

30 sec is not a velocity, 40 m/s is not an acceleration rate, and 70 km/hr is not a distance. You need to be more careful copying problems. Physics problems that don't make sense do not have answers.
Thursday, March 3, 2011 at 11:32pm by drwls

The answer is Five times the potential energy increase. I assume the 10.5 is in meters. You need to include the units. The number you end up with will be in Joules. That will need to be converted to (food) Calories. 1 food Calorie = 1000 calories = 4184 Joules.
Friday, December 3, 2010 at 12:14am by drwls

Each package will take the same time to hit the ground. So the separation on the ground will be whatever it was between the two release points. That is easy to calculate. (V * t) You don't need the mass, and you don't need the time requred to hit the ground.
Tuesday, September 25, 2007 at 11:07pm by drwls

You need the ratio of g' on Europa to g on Earth. That ratio is g'/g = (Meuropa/Mearth)(Rearth/Reuropa)^2 Look up the numbers you need and compute the ratio. Then get g', the value on Europa. For the pressure at depth h, the pressure will be P = (water density)g' h
Tuesday, November 18, 2008 at 12:09am by drwls

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