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# study guide 1 2113

LSU
GPA 3.0

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COURSE
Physics 3 (2113)
PROF.
TYPE
Study Guide
PAGES
5
WORDS
CONCEPTS
Fields, gravity, gauss
KARMA
50 ?

## Popular in Physics

This 5 page Study Guide was uploaded by Jawwad U Ahmed on Tuesday September 20, 2016. The Study Guide belongs to 2113 at Louisiana State University taught by Stadler in Fall 2016. Since its upload, it has received 68 views. For similar materials see Physics 3 (2113) in Physics at Louisiana State University.

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Date Created: 09/20/16
Study guide exam 1 Formulas: Gravitation: G= 6.674 x 10^-11 N  m^2/kg^2 When it gives you a multiple spheres use law of superposition which is just gravitation but the sum of them for the net force. Shell Theorem: If the particle is outside the shell then there is force and it is between the particle and the center. If the particle is inside the shell it’s 0. When in doubt for GRAVITY use the gravitation formula When given a system of particles then do the gravitation formula with all the points and add them. Remember it is negative I don’t think they’ll ask this but here it is just in case: Here is the formula for the earth and the spaceship equation. Mainly know this formula (Not on the formula sheet) I don’t think they’ll ask, but the constants are on the formula sheets. Keplers Laws These are mainly conceptual; they wouldn’t ask you to solve anything unless it’s Law of Periods. Law of orbits: All planets follow the sun at one focus. Law of Areas: A line that sweeps or maps out the area of the orbits of the  planets around the sun.  Law of Periods:  Coulombs Law K= 8.99 x 10^-11 N  m^2 / c^2 This is identical to Gravitation. Just like gravity the net is the same way except it’s between the center particle and the outside particle and then sum them. Equilibrium Problems are pretty much straightforward. Just place the particle where it will balance out to zero Shell Theorems are the same thing. Outside use the Coulombs law with q1 as your center. Inside it’s 0. Charge is quantized which means it’s the smallest unit. Electric Fields POINT CHARGE is This is the same as Coulombs Law especially with net electric fields (just add them up) The FORCE of electric fields is Dipoles: The electric field is always goes from the positive to the negative I don’t think they will ask for torque and dipoles but just know the dipoles will always want to be flat or on the x- axis The energy of a dipole is the same except cosine and it is negative Gauss’ Law (Sh*t get’s real here) Flux- How much electric field goes through a surface Flux Formula E is electric field and A is area. WRITE THIS DOWN FOR EVERY GAUSSIAN SURFACE!!!! Gauss’ Law Formula = KNOW YOUR SHAPE FORMULAS!!!!!!!!!! Planar: *NOTICE THE GAUSSIAN SURFACE STICKS OUT OF ONE END. IF THE SURFACE STICKS OUT ON BOTH ENDS THEN THE FORMULA IS MULTIPLED BY ½. Cylinder: Know all the shapes and formulas that go with them! Also reread the chapters and do the wileyplus! Hope this helped

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