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A simple numerical on momentum

Car mass is 1200 kg moving velocity is 108 km/hr. On applying brakes velocity reduced to 36 km/hr. Find change in momentum? (posted by Aditi) Answer: m=1200 kg u=108 x 5/18=30m/s v=36×5/18=10m/s Change in momentum = m(v-u) = 1200 x (30-10)=1200 ...

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    Posted on 11 Sep 2011 by Mathew AbrahamPosted in Ask Physics, brakes, Force, Mechanics, ProjectTagged 10m, Aditi, answer, brakes, car, change, link, mass, momentum, Physics, post, speed, velocity. Comments

    Can light do some mechanical work?

    “We know that sound can cause some mechanical work(eg:when we keep our hand in front of a large speaker,we feel something hitting the back of our hand), but why this doesn’t happen with light??” -Manishankar asks. Link to this post!...

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    Posted on 10 Sep 2011 by Mathew AbrahamPosted in Ask Physics, ProjectTagged Auto, doesn, Draft, hand, link, Physics, post, work. Comments

    How atoms are formed? – Neeraj Asks

    Neeraj asks: ”We have read that atoms can neither been created nor been destroyed!I want to know from where atoms came in existence,if they can not been created,also atom contain electron and proton which are negatively and positively charged,i want to know from where these charge came?”   Your question will be answered soon Link to this post!

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    Posted on 5 Sep 2011 by Mathew AbrahamPosted in Answers, Ask Physics, ELECTROSTATICS, Interesting Questions, neeraj, ProjectTagged atom, atoms, charge, electron, existence, link, Physics, post, proton, question. Comments

    How atoms are formed? – Neeraj Asks

    Neeraj asks: ”We have read that atoms can neither been created nor been destroyed!I want to know from where atoms came in existence,if they can not been created,also atom contain electron and proton which are negatively and positively charged,i want to know from where these charge came?”   Your question will be answered soon Link to this post!

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    Posted on 5 Sep 2011 by Mathew AbrahamPosted in Answers, Ask Physics, ELECTROSTATICS, Interesting Questions, neeraj, ProjectTagged atom, atoms, charge, electron, existence, link, Physics, post, proton. Comments

    Vacuum: Challenges and Solutions – Free download from Physics World

    Download the free suppliment to Physics WOrld online at the following link. This supplement focusses on the challenges in Vacuum and the solutions. Click Here to download The download covers Vacuum Technology : Basis for innovation and Process Optimiza...

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    Posted on 10 Aug 2011 by CBSE Physics :: A Web Resource in PhysicsPosted in Physics LinksTagged basis, link, nsep, paper, Physics, physics study guides, physics world, process optimization, technology basis, vacuum technology. Comments

    Difference between electric field and magnetic field?

    What is difference between electric field and  magnetic field? Hope that the following link will help you find the answer. Difference between Electric and Magnetic fields http://in.answers.yahoo.com/question/index?qid=20080710215215AA3TS4 j http://www...

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    Posted on 3 Aug 2011 by Mathew AbrahamPosted in Ask PhysicsTagged answer, diffen, difference, field, Hope, link, madsci, magnetic field, magnetic fields, question index. Comments

    Unit 01 – ElectroStatics Class XII CBSE Question Bank

    ElectroStatics (At present all the questions are posted together; soon we will be categorizing according to marks) You can either browse these questions online or download them by clicking on the link “save as pdf”. You can also send the li...

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    Posted on 26 Jul 2011 by CBSE Physics :: A Web Resource in PhysicsPosted in Question BankTagged Bank, class xii, download, electric charges, link, magnetic effects, magnetism, pdf, question bank, Related. Comments

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