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## INTRO PRIN OF PHYSICS

by: Mrs. Linda Wiegand

13

0

1

# INTRO PRIN OF PHYSICS PHY 2020

Marketplace > University of Florida > Physics 2 > PHY 2020 > INTRO PRIN OF PHYSICS
Mrs. Linda Wiegand
UF
GPA 3.69

Staff

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COURSE
PROF.
Staff
TYPE
Class Notes
PAGES
1
WORDS
KARMA
25 ?

## Popular in Physics 2

This 1 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 Staff in Fall. Since its upload, it has received 13 views. For similar materials see /class/206786/phy-2020-university-of-florida in Physics 2 at University of Florida.

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Date Created: 09/18/15
g98 ms2 100 cm1 m 3937 inches1 m 1 km1000 m 12 inches1 foot 5280 feet1 mile 1 kg 1000 g 1 hour 3600 s G67 10 11 Nm2kg2 Comparison between metric and English units of Force 1 lb pound 445 N Useful formulas Formulas Don t forget d V t H water freezes at 32 11F 0 11C 273 K water boils at 212 0F 100 0C 373 K x xo v0x 12axt2 y yo voy 12ayt2 2ax X X0Vx2 V0x 2ay y y0vy2 voy V V0 at Fma Fgmvny GmMr2 where G67 103911Nm2kg2 a v2r circumference of a circle 21Ir where r is the radius Linear Espring 12 kx Fspring kx Egm poten a mgh h is the height EKinetic Energy 12 HIV2 pthe momentum mv remember p and V are vectors so p has both size and if it s important direction If there are no external forces a momentum is conserved and the collision is elastic a energy is conserved if mass m1 hits a stationary mass m2 then Vl nal Viiniiial mim2 m1m2 and V2final Vlinitial 2m1 m1m2 Rotational sr0 Vlinearwr alinearar Remember use radians for 0 a and a in these and all formulas below 1 rotation 360 0 lt don t use 21I radians EmL Km Energy 12 lo2 Langular momentumIw Imoment of Inertia is for a point mass a distance r from the axis of rotationmr2 If you need a moment of inertia for a special problem as long as that s not the question you will be given it torque 111 also torque F times lever arm where lever arm is the distance of closest approach to the axis of rotation of the Force vector extended forwards and backwards Density is represented by the Greek letter p pMV where M is the mass of the object and V is the volume the object takes up 1 Hz 1 cyclesecond vsmmd343 ms fw27 f1T x M cokm 2 p in dB 10 logIIo where 10 is the reference sound intensity 10 12 Wm2 Doppler formula for the source moving away from the observer 1 f1 VsourceVsound for the source toward the observer 1 f1 VsoumeVsmmd Electrical VIR power loss 12R 1 is current thru R V2R V is voltage drop across R Rsmes R1 R2 R3 1Rpmnel 1R1 1R2 1R3 Relativity LL0 1 v2r2 2 tt01 v2e2 2 Fqu force on a moving charge in a magnetic eld the charge on 1 electron is 16 x 10 19 C on 1 positron 16 x 10 19 C

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