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- Strike while the iron is hot !AskPhysics Blog Feed Dear students, CBSE has given you more time for exams. We have approximately 7 days before the Physics exams. How to use this seven days effectively for a thorough revision is very important. 7-8 days of sleeping is a must. One hour of exercise 1 to 2 hours for break fast lunch […]
- Dreams come true only for those who do their partAskPhysics Blog Feed I was recently narrating the life story of a girl from Dindigul who got married to a police constable at the age of 14. She was not even reached class 10. She became the mother of two kids by the age of 18. During that time she had to accompany her husband […]
- “DID THOSE PHILOSOPHERS WORK IN VAIN”AskPhysics Blog Feed “The Philosophers who worked in search of the Philosophers’ stone and those set themselves dedicated to find the elixir of life”The works of those in search of the Philosopher’s stone didn’t go in vain, They made the beginning. The beginning itself was so wonderful that anyone who got touched by the idea […]
- Quarks, conservation, entanglementAskPhysics Blog Feed Doubt from AskPhysics.comI have heard the following statements-> 1. Quarks always exist in a group of 2 or 3, and can not stand alone. 2. Protons are made up of 2 up quarks, and 1 down quark. 3. Quantum mechanics allows us to entangle a particle by somehow dividing it into 2(For […]
- Prepare for Physics oral test too during lockdownAskPhysics Blog Feed Plus Two Physics Oral Test series Many schools have started oral questioning also as part of diagnostic and formative assessment. The initiative was … Prepare for Physics oral test too during lockdown The post Prepare for Physics oral test too during lockdown appeared first on Ask Physics.
- Theory of RelativityAskPhysics Blog Feed The basic concepts of relativity are explained in a very simplified way that are easy to understood by Mr. Vivek Sawhney in this YouTube Video… The video focuses upon the general discussion on Theory of Relativity….What is the theory of Relativity? What is time dilation and length contraction? SUBSCRIBE to the YouTube […]
- A numerical problem from motion in 1 DimensionAskPhysics Blog Feed A boy plays with a ball on a field surrounded by a fence which has a height of 2.5m . He kicks the ball vertically up from a height of 0.4m with a speed of 14 ms−1. (a) What is the maximum height of the ball above the fence? (b) What is […]
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 x 20= 24000 kg m/s
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.
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
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
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 Optimization Testing Equipment for space and more articles related to vacuum. Related posts:NSEP 2010 Question Paper and Solutions Download […]
Related posts:
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
http://www.madsci.org/posts/archives/2000-06/961944554.Ph.r.html
http://www.newton.dep.anl.gov/askasci/phy00/phy00338.htm
http://www.diffen.com/difference/Electric_Field_vs_Magnetic_Field