INTRO PRIN OF PHYSICS
INTRO PRIN OF PHYSICS PHY 2020
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This 3 page Class Notes was uploaded by Mrs. Linda Wiegand on Friday September 18, 2015. The Class Notes belongs to PHY 2020 at University of Florida taught by Mark Meisel in Fall. Since its upload, it has received 15 views. For similar materials see /class/206764/phy-2020-university-of-florida in Physics 2 at University of Florida.
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Date Created: 09/18/15
FormulaReview Sheet by Meisel PHY 2020 for MTE 2 v 11 October 2006 TABLE 32 Metric SI pre xes multiplier LENGTH max1x ABBREVIATION VALUE Metric mush 39 Ten 1 10 2 11000000000 1 cm 10 mm 03 in Gig G 109 1000000000 1m 100cm 1000 mm 3937 in 328l39t M M 11f 1000000 1 km 1000111 52301 06211111 m k 101 a 1000 g 100 British Metric m h 1 Data d2 101 10 um 254 cm 254 mm Dec 5 10 110 I ft 12 in 3048am 3048 mm Gena c 10 2 1100 1 m 5330f 161 km L610m mm m 10quot 1 1000 VOLUME Micro 14 10quots 11000000 a 1 um 1000 cm s 106 quarts NW quot g z mo Plot P 1 l quaquot 0946 km m r 10 11 v average speed distancetime Velocity is a vector Speed is the magnitude of the velocity vector v i f X 1X0 instantaneous velocity change in distancechange in time a average acceleration change in velocitytime Acceleration is a vector a i Z instantaneous acceleration change in velocitychange in time When given a graph of distance versus time the slope is the velocity When given a graph of velocity versus time the slope is the acceleration Workhorse Equations for constant acceleration 2 2 av v0 a v vO t 2X XO VOV 1 2 XZXOl t XX0v0t at g98 232 v vcos6 s s Bi B2 4A AX2BXC0 XZTC vyvs1n0 F m a Force massacceleration v 1Iv v v Force is a vector un1t 1s N Newton tan 0 y X Frictional Force is opposite to direction of motion In equilibrium the sum of all forces acting on a body is zero FormulaReview Sheet by Meisel PHY 2020 for MTE 2 v 11 October 2006 Projectile Motion Xdirection ydirection aX 0 ay 2 g VXO 2 v0 cos00 vyO 2 v0 sin 00 vX VXO constant vy 2 v0 sin0O gt 1 XXoVOCOSGOt yy0vos1n00t gt2 g 2 Tra ecto tan0 X X J ry y 0 2V COSZ 90 axo 1 3 2 2 o 4 K Max Height h w V lt70 r 2g 7 e v4 2 29 W Range R amp K g E0 Ef Conservation of Energy PEO KEO W PEf KEf W Fd Work Force distance unit is J Joule Force and distance are vectors and their dot product gives the scalar Work So use only the component of the Force that is in the direction of the movement W F cos 0 d W KElinear mvz W AKE KEf KEO m 39TIL 771 I llf P 2 Power worktime unit is W Watt P F v F cos 0 v Spring with spring constant k F kX PE k X2 PE or U Potential Energy of gravity U m gh I p my momentum mass velocity Momentum is a vector Ap F E Force change in momentumchange 1n t1me recall Force 18 a vector 1 or J Impulse if force applied in a short period of time I F t FormulaReview Sheet by Meisel PHY 2020 for MTE 2 V 11 October 2006 G667 gtlt10711Nm2kg72 lbar 1 X 105Pa NA 6022 X 1023 particles 1 mole 1 Pa 1 Nm2 R 8314 Jmole K 1ca14186J c 567 X 10 8 w nf2 K 4 Conservation of Momentum no external forces and no internal work done then Zpo 2m Totally Elastic Collision KE conserved and Momentum conserved 1 2 1 2 1 2 1 2 imv 7m v 7mv 7m v 1 10 2 Z 20 2 1 1f 2 2 2f mlvlo mZVZO mlvlf mZVZf Totally Inelastic Collision two bodies stick together KE is NOT conserved Momentum is mlvlo mlvlo m1 m2 7 RECALL Linear vs Rotational Motion RECALL Conservation of Energy and Momentum contains Linear and Rotational parts RECALL Bodies in Equilibrium have net Force of zero and net Torque of zero 2 R Period T is a time T L Gravitational Force F GL1 V R Center ofMass M Zmi X Y Zmi Zmi Density p Pressure is force per unit area 1 Bernouilli P pgh Epv2 const and Alvl A2v2 F f Archimedes FB phquid Vdisplaced g Pascal X Ideal Gas Law PV nRT Temperature Scales OF 95 0C 32 0C 59 0F 32 0K 0C 273
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