Search: Physics-Mechanics

Number of results: 94,957

Physics
Did Einstein support quantum mechanics as being fundamental physics, or did he think quantum mechanics was inconclusive?
Thursday, April 10, 2008 at 11:58pm by Tammy

Physics
If the electron in a hydrogen atom obeyed classical mechanics instead of quantum mechanics, would it emit a continuous spectrum or a line spectrum?
Thursday, April 10, 2008 at 8:59pm by Kara

physics
Many laws of physics turn out to be not quite right, r perfectly accurate, when experiments of higher accuracy are performed. Newton's "Laws" of gravity and mechanics turned out to be not quite right when Einstein discovered relativity. The conservation of energy...
Sunday, October 2, 2011 at 10:35pm by drwls

science
Classical mechanics Relativity Thermodynamics Electromagnetism/Optics Quantum mechanics
Wednesday, August 29, 2007 at 8:17pm by ~christina~

Critical Thinking
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
Friday, July 31, 2009 at 2:20am by bere

English
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
Thursday, May 7, 2009 at 1:00pm by john browm

CRT205 Quiz
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
Friday, February 27, 2009 at 1:45pm by randy

critical thinking
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
Friday, January 16, 2009 at 11:01am by Anonymous

english: crit. thinking
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
Wednesday, March 19, 2008 at 10:37pm by rose

physics
You can do this with Kepler's law, or with mechanics. With mechanics FIrst satellite gravity force=centripetal force. GMm/5.5E6^2= mv^2/5.5E6 solve for GM Next satellite, do the same thing, but you know GM, so solve for v
Thursday, October 18, 2007 at 6:09pm by bobpursley

math
At the Whistlestop Cafe, 15 of the 19 patrons are mechanics. If a sample of 8 is taken, what is the probability that exactly 5 patrons are mechanics? Round your answer to 4 decimal places.
Thursday, June 3, 2010 at 5:45pm by Anya

Physics
http://ocw.mit.edu/courses/physics/8-01-physics-i-classical-mechanics-fall-1999/video-lectures/lecture-6/
Tuesday, November 29, 2011 at 8:01pm by Damon

Physics
see below, but be certain to read this. http://www.batesville.k12.in.us/physics/PhyNet/Mechanics/Circular%20Motion/labs/cf_and_speed.htm
Sunday, September 30, 2007 at 5:38pm by bobpursley

physics
http://zonalandeducation.com/mstm/physics/mechanics/vectors/findingComponents/findingComponents.htm
Sunday, January 2, 2011 at 5:10pm by TutorCat

PHYSICS
http://zonalandeducation.com/mstm/physics/mechanics/vectors/findingComponents/findingComponents.htm
Wednesday, December 22, 2010 at 6:51pm by TutorCat

Lab for physics
None of the groups measured it? Ask your teacher about it...I sense there is a great lack of prelab understanding of this classical lab. The idea is to let centripetal force be balanced by a weight, thence to use that concept. http://www.batesville.k12.in.us/physics/PhyNet/...
Sunday, September 30, 2007 at 11:40am by bobpursley

ENGLISH
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
Thursday, May 7, 2009 at 4:37pm by john doe

Physics
http://www.batesville.k12.in.us/physics/phynet/mechanics/circular%20motion/banked_no_friction.htm
Saturday, February 11, 2012 at 7:07pm by bobpursley

Physics
http://www.batesville.k12.in.us/physics/Phynet/Mechanics/Circular%20Motion/banked_no_friction.htm
Sunday, November 29, 2009 at 5:07pm by bobpursley

physics
mechanics
Friday, February 18, 2011 at 1:18am by Anonymous

Physics Mechanics
this is wrong
Sunday, February 20, 2011 at 11:49am by your !@#$%^&

Physics
due north- aka find y-component due east- aka find x-component http://zonalandeducation.com/mstm/physics/mechanics/vectors/findingComponents/findingComponents.htm
Wednesday, September 14, 2011 at 10:30pm by TutorCat

Calculus
Use newtons method and the function f(x)=x^2-a to derive the mechanics rule. Mechanics Rule for approaching sqrt(a), a>0, is Xn+1=1/2(Xn+a/Xn), n=1,2,3,...
Friday, July 20, 2012 at 10:56pm by Elizabeth

Physics Mechanics
jk...i love you
Sunday, February 20, 2011 at 11:49am by your friend

Physics- Mechanics
radial acceleration= v^2/r
Friday, September 17, 2010 at 5:28pm by bobpursley

Physics/mechanics
Thank you very much
Wednesday, October 1, 2008 at 2:53pm by charlie

Physics/mechanics
Yes, those are the assumptions.
Wednesday, October 1, 2008 at 2:53pm by bobpursley

physics-mechanics
see other post
Friday, August 26, 2011 at 9:10am by bobpursley

Physics C: Mechanics
just part a...does anyone know how to do it?
Tuesday, October 26, 2010 at 7:33pm by Xavier Hernandez

Physics
Work is definitely not zero for launching a satellite. The kinetic energy must increase to reach orbital velocity. The potential energy also increases because you are raising it farther above the Earth's surface. The formula Epi = -G*m1*m2/R can be used for the potential ...
Thursday, February 28, 2013 at 10:17pm by drwls

Physics
When do we have to give up on an old theory and try to come up with a new theory? Would it be when the old theory under goes changes? Also, how would I compose my answer to this question into a paragraph? This happens when we suspect that the theory is not perfect. E.g., the ...
Tuesday, August 7, 2007 at 9:54pm by Soly

mechanics- physics
substitute 'a' in s=v₀t - at²/2 and solve for 't'
Sunday, January 6, 2013 at 1:43am by Elena

Physics-mechanics
2.7E-12=G(2m)(m)/2.6^2 solve for m
Monday, December 24, 2012 at 10:33am by bobpursley

Physics Mechanics
Thank you so much drwls. You're a life saver. Thanks a lot! :)
Sunday, February 20, 2011 at 11:49am by D

vectors
http://id.mind.net/~zona/mstm/physics/mechanics/vectors/componentAddition/componentAddition2.htm
Wednesday, August 5, 2009 at 2:24pm by bobpursley

physics-mechanics-collisions,momentum, impulse
so : v' = 7.52679E-20/M?
Saturday, October 27, 2012 at 5:05am by HANNE

Physics
a) Kinematics is a part of mechanics that involves the description of motion.
Friday, September 14, 2012 at 5:31pm by Elena

Physics Mechanics
Thanks a lot. Your answer are both right. Thank you so very much.
Wednesday, February 23, 2011 at 9:27pm by D

physics
1 mechanics 2 thermodynamics 3 vibrations 4optics 5optics
Friday, February 18, 2011 at 1:18am by WE Have the same text book

book report
im doing a book report in the 5th grade...and it said i have to give a summary, title,ect....and then it says slogan and mechanics..i dont know what slogan and mechanics mean....please help and give me a site to know what it means or tell me...thanks!!
Monday, September 8, 2008 at 2:58pm by sheila

mechanics- physics
Please avoid duplicate posts. You will not get your questions looked at any sooner that way.
Sunday, January 6, 2013 at 1:43am by drwls

Quantum mechanics, eigenvalues, eigenfunctions
I'll also like to thank Dr. Physics for helping me last time :)
Thursday, October 22, 2009 at 7:45pm by Steven

Newtonian physics
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
Wednesday, November 12, 2008 at 12:05am by Anonymous

physics-mechanics-collisions,momentum, impulse
Don't answer here please, but in the other topic i created, sorry!!!
Sunday, October 28, 2012 at 5:29am by HANNE

Physics-Mechanics
I would need to see the figure to understand the arrangement. Other teachers may be more telepathic.
Friday, September 24, 2010 at 1:15pm by drwls

Quick Question
Quantm physics treats matter as probabilty wave. Quantum mechanics is the same thing.
Monday, May 11, 2009 at 6:32pm by drwls

Physics
In classical mechanics, the electron would decelerate and emit a continous spectrum as it heads for and crashes into the nucleus.
Thursday, April 10, 2008 at 8:59pm by drwls

physics
Identify the area of physics that is most relevant to each of the following situations. Explain your reasoning. a. a high school football game b. food preperation for the prom c. playing in the school band d. lightning in a thunderstorm e. wearing a pair of sunglasses outside ...
Monday, August 21, 2006 at 11:30pm by Anonymous

Physics
You should have seen the equation in your text by now. It is the solution to Newton's second law of motion when the acceleration (g) is constant and the initial velocity is zero. You can call it kinematics, mechanics or physics. When I attended college, kinematics meant ...
Sunday, November 21, 2010 at 10:10pm by drwls

English
1. There are a lot of clubs in my school. 2. There are a lot of clubs in our school. (Are both correct? Can we use 'our' instead of 'in'?) 3. I study a lot of subjects like mechanics, ethics, and social studies. 4. I study a lot of subjects such as mechanics, ...
Tuesday, April 6, 2010 at 9:46pm by rfvv

physics-mechanics-collisions,momentum, impulse
V' is correct. I am certain M is wrong, it is smaller than either an electron or proton, which cannot be. Recheck your work on that.
Sunday, October 28, 2012 at 5:34am by bobpursley

Physics-Mechanics
Hi, I am confused on the height change. By 4.9 did you mean 4.8? and if so do I set it equal to zero to solve? is the v in the centripetal force different from the v in KE?
Friday, October 8, 2010 at 2:14pm by Genevieve

Astronomy
Thank you for using the Jiskha Homework Help Forum. The 2nd one is animated: 1. http://en.wikipedia.org/wiki/Orbit 2. http://www.windows.ucar.edu/tour/link=/physical_science/physics/mechanics/orbit/orbit_shape_interactive.html They are elliptical, almost circular.
Friday, November 23, 2007 at 1:25pm by SraJMcGin

quatum mechanics
In the double-slit experiment, consider the point at the middle of the final (detector) screen which is equidistant from the two slits. Suppose the intensity at that point is when either slit is open. Now for each of the three cases (a) bullet (b) wave (c) quantum mechanics (...
Saturday, February 16, 2013 at 3:15am by preshy

Physics
Quantum mechanics, which is necessary eo explain why only certain electron energy levels are poossible, requires a wave treatment of the electrons
Monday, April 14, 2008 at 10:21pm by drwls

Quick Question
What is Quantum Physics and Quantum Mechanics? Is there even a difference between them? thank you very much.
Monday, May 11, 2009 at 6:32pm by James

Physics - Mechanics and Ocsillatory Motion
same thing. figure the change of KE. Then figure the x to achieve that area.
Saturday, October 30, 2010 at 6:42pm by bobpursley

Physics (Classical Mechanics)
Ah great thank you. I got problems with it because there are no frictions...i can hardly imagine how the masses behave but ill get an "eye" for it. Seems very right, big thanks!
Thursday, November 18, 2010 at 9:39pm by Toby

Newtonian physics
This is not a question; it seems to be your opinion. I disagree with the last sentence. Comprehension and a working knowledge of quantum mechanics remains difficult, even to most specialists.
Wednesday, November 12, 2008 at 12:05am by drwls

physics-mechanics
If the person ended up at the starting point, the avg velocity is zero because the change of displacement is zero.
Friday, August 26, 2011 at 9:11am by bobpursley

Physics- Mechanics
60 times as fast 2 pi r in 60 seconds is the speed which we got in part a so we can solve for r then Ac = v^2/r
Friday, September 17, 2010 at 4:53pm by Damon

Quick Question
You might visit some sites on the following GOOGLE Search: http://www.google.com/search?q=Quantum+Physics+%26+Quantum+Mechanics&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a Sra
Monday, May 11, 2009 at 6:32pm by SraJMcGin

Mechanics - physics
A car of mass 400kg moving initial at 36km/h increases to 120km/h in 6sec, what is the force acting on the car?
Friday, January 4, 2013 at 7:25pm by Precious

Physics C. Mechanics
d = 11 meters They both go the same acceleration, speed, and distance. Therefore each goes half the distance. d/2 = (1/2) a t^2
Monday, October 18, 2010 at 8:18pm by Damon

Physics- Mechanics
A particle has r(0)= (4m)j and v(0)= 92 m/s)i If uts acceleration is constant and given by a=-(2 m/s^2)(i+j), at what time t does the particle first cross the x axis?
Friday, September 17, 2010 at 3:27pm by Genevieve

Critical Thinking
The author seems to imply (A), but I do not agree with his statement. Quantum mechanics is much more difficult to learn and apply than Newtonian physics, because of the mathematics required.
Friday, July 31, 2009 at 2:20am by drwls

Physics- Mechanics
Find the tension in the system(F=Ma)the divide this by the number of pulleys that have shortened the y distance. the angle is just there to throw you off. This is a bad assumption.
Friday, September 24, 2010 at 4:55pm by maximus Corbetti

crt
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
Saturday, June 6, 2009 at 11:44am by Anonymous

School
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
Friday, May 15, 2009 at 8:23pm by John

crt thinking
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
Saturday, November 14, 2009 at 12:17am by Anonymous

crt 205
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
Friday, January 9, 2009 at 4:17pm by Jacob

Physics - Mechanics and Ocsillatory Motion
thanks, I've got the first part correct now. can anybody help out a little more on the second part? I'm still completely confused.
Saturday, October 30, 2010 at 6:42pm by Sara

Mechanics-physics
The acceleration of a particle is defined by a=e^(k(t^2)).its velocity is 2m/s at time=3s.Determine the value of k and velocity after 5s starting from rest.
Tuesday, March 30, 2010 at 11:57pm by Aayush Vetwal

com 220
While correct grammar and usage are basic ecpectations in all kinds of writing, the larger aspects such as content and development are given far greater weight than style and mechanics, especially at the cllege level. In a 100-point paper, for example, perhaps 80% of the score...
Friday, November 21, 2008 at 12:06pm by anonymoys

physics-mechanics
A 1.0 kg mass weighs 9.8 N on Earth's surface, and the radius of Earth is roughly 6.4 x 10^6 m. Calculate the average density of Earth
Thursday, December 27, 2012 at 7:09pm by Rebecca

mechanics-physics
A lorry of mass 1000kg moving initially at 10m/s increases to 25m/s. In 5sec the on the lorry is 15,000Newtons; calculate: (a) Acceleration (b) The distance covered
Saturday, January 5, 2013 at 1:52pm by precious

Physics Mechanics (unsolved)
integrate the repulsion force from the initial separation to infinity and you will get a finite energy change. Set that equal to the final maximum kinetic energy.
Friday, April 13, 2012 at 9:45pm by drwls

Mechanics (Physics)
forceonman=880=Mg+ma=M(9.8+1) forceonmanconstantspeed=1000=(M+m)g well, from the Man data, M = 880/(10.8) put that into the second equation, and solve for m, the son mass.
Wednesday, December 22, 2010 at 2:13pm by bobpursley

Chemistry
Truth be known, they are drawn to be fuzzy because we really don't know EXACTLY where they are. It is best if we describe the probability of an electron being within that range. In fact, the whole idea of orbits and sub-orbits (orbitals) is a carry over from the old days ...
Thursday, March 25, 2010 at 2:25pm by DrBob222

physics-mechanics-collisions,momentum, impulse
and, M= 5.66525677E-39 V' = 7.52679E-20/5.66525677E-39 is this correct???
Saturday, October 27, 2012 at 5:05am by HANNE

physics-mechanics-collisions,momentum, impulse
and, M= 5.66525677E-39 V' = 7.52679E-20/5.66525677E-39 = 1.328587618E19 is this correct???
Saturday, October 27, 2012 at 5:05am by HANNE

mechanics -physics
averege v =total dostance/total time = =(15•120 + 18•45)/165 =15.82 m/s
Wednesday, January 2, 2013 at 9:52pm by Elena

mechanics -physics
A car moved at 15m/s for 2minutes, afterwhich it moved at 18m/s for 45seconds,calculate the average velocity of the car?
Wednesday, January 2, 2013 at 9:52pm by precious

physics
how does a ticker timer work and how can a ticker timer be used to measure the displacement and velocity of a moving object in a mechanics practical?
Tuesday, March 10, 2009 at 11:27am by pipa

mechanics - physics
A bullet of mass 3.0g moving at 500m/s hits a tree and pierced 20cm into the trunk of the tree.what is the resistimg force offered by the tree?
Saturday, January 5, 2013 at 5:47am by precious

mechanics-physics
You left out some words here: "in 5 sec the on the lorry is 15,000 Newtons. " Is 5 seconds the time requred to accelerate from 10 to 25 m/s? If so, there are two ways to calculate acceleration, and they do not agree.
Saturday, January 5, 2013 at 1:52pm by drwls

applied mechanics
Hopefully the following GOOGLE Search will help in some way: http://www.google.com/search?q=applied+mechanics+tutorial&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a Sra
Thursday, May 7, 2009 at 9:50am by SraJMcGin

mechanics - physics
Force * distance = Work done by bullet = Initial kinetic energy of the bullet Solve for the force F = M*V^2/(2*X) = 3*10^-3*(500)^2/(2*0.2) Newtons = 1875 N
Saturday, January 5, 2013 at 5:47am by drwls

Mechanics-physics
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

science
Scientists help us understand the earth, chemistry, mechanics, physics, and ourselves. They help preserve the planet and invent the things that people use. Scientists also formulate new medicines.
Sunday, March 2, 2008 at 6:34pm by Ms. Sue

physics (fluid mechanics: buoyant forces)
Fg=Fb m . g = d . V . g m = d . V m = (1,35 . 1000 kg per m cube) 2/3 pay ( .06 m )cube m = 41 kg
Wednesday, May 2, 2007 at 6:15pm by no name

Physical Science
Bohr's model consisted of circular orbits around the nucleus. That was modified by Sommerfeld from circular to elliptical orbits depending upon serveral factors, and that was modified to sub-orbits (orbitals). The modern theory is one of mathematical treatment based on ...
Saturday, November 29, 2008 at 3:47pm by DrBob222

physics (mechanics)
Yes, two integrations are required. V(t) = integral of a(t) dt from t = 0 to t V(t) = 1.4 t^2/2 + 3.9t MINUS the value of the same function at t=0 (which is zero), so V(t) = 1.4 t^2/2 + 3.9t X(t) - X(0) = integral of V(t) from t = 0 to t X(0) = 0 X(t) = 1.4 t^3/6 + 1.95 t^2 If...
Saturday, August 28, 2010 at 6:11pm by drwls

Science
I would recommend to check out a website called physmatixsolve They helped me with a tough question i got in my Physics homework, classical mechanics. The amazing thing is that they really sent me the solution in less than 24 hours, which is pretty neat.
Monday, April 25, 2011 at 7:01am by Dan

Physics
What are some examples of the principles of mechanics in car crashes and car safety? I can only think of one, friction reducing the traction of the tires. Can you help me come up with two or three more examples? Thank you.
Tuesday, November 13, 2007 at 5:59pm by Jacob

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