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displacement formuli
∆x=v _{i}_{} ∆t+ a (∆t) ^{2}

displacement vs distance
 displacement= net change in location
 distnce= travel path lentght

final velocity
 v_{f}^{2}=v_{i}^{2 }+2ad
 v_{f}=v_{i}+at _{}

Newtons first law
An object at rest remains at rest, and an object in motion continues in motion with constant velocity (that is, constant speed in a straight line) unless the object experiences a net external force.


Newtons Third Law
If two objects interact, the magnitude of the force exerted on object 1 by object 2 is equal to magnitude of the force exerted on object 2 by object 1, and these two forces are oppisate in direction.

coeficiant of static friction

coefficiant of kinetic friction

Force of friction
F_{f}= μF_{n}_{}



WorkKinetic energy theorem
W= ∆KE

Elastic potential energy
 K=spring constant in N/m

Mechanical energy
ME=KE+PE

Conservation of mechanical energy
ME_{i}=ME_{f}



Impulse momentum theorem
F∆T=∆p=mv_{f} mv_{i}

conservation of momentum
Pi=Pf



Keplers first law
Each planet travels in an elliptical orbit around the sun, and the sun is at one of the focal points

Keplers second law
An imaginary line drawn from the sun to any planet sweeps out equal areas in equal time intervals

keplers third law
the square of a planets orbital period (T ^{2}) is proportional to the cube of the average distance (r ^{3}) between the planet and the sun, or

period of an object in circular orbit
 Period= the time it takes for one orbit




Newtons Law of Universal Gravitation







Isovolumetric
 No work done
 ∆V=0
 so P∆V=0 and W=0
 Therefor ∆U=Q

First Law of Thermodynamics
∆U=QW

Isothermal
 No change in temperature or internal energy
 ∆T=0 so, ∆U=0; therefore, ∆U=QW=0; or
 Q=W

Abiabatic
 no energy transferd as heat.
 Q=0, so ∆U= W

Isolated system
U_{i}=U_{f}

Efficiancy of a heat engine

Idele gases
 A gas behaves like an Idele gas when Tempeture is high and presure is low


