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Why is the Large Hadron Collider as large as it is? I heard today that the actual accelerator portion is only 40 Meters long, the rest is (mostly) magnets that steer the particles, so why does the accelerator need to be 17 miles in circumference? Does making it larger provide any advantages?
In what sequence should these chapters be prepared for my exams:-
units and dimensions,kinematics,laws of motion,work power and energy,motion of system of particles and rigid body dynamics,gravitation.
Apoorv Katoch asked
It is better to follow the same pattern as given in NCERT text book
“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.
Find some interesting links below from Physics World Magazine (online)
Exploring whether physics is to blame for a dropped catch in the England v India cricket match
Researchers revisit this controversial issue
Delegates at the Lepton Photon 2011 conference in Mumbai debate the latest results from CERN’s Large Hadron Collider
The speed of a train changes from36km/h to 72km/h in 10sec. calculate the distance travelled during this time
u=36km/h = 10 m/s
v=72 km/h=20 m/s
use v = u+ at to find a
a = 1 m/s2
Use v2-u2=2aS to find S
S = (400-100)/2 = 150 m