7/21/2019 Physics 117 Equation Sheet - Fall Midterm

1/1

1

Physics 117 Equation Sheet (partial, for October midterm)

MECHANICS

For constant acceleration, ax:

( )

(same for y-motion)

Quadratic equation:

Relative velocity: Dynamics:

Friction: (kinetic), (static)

Newtons law of gravity:

,

Spring Force:

Work: , (non-conservative)

Energy:

(kinetic energy), (gravitational potential energy)

(spring potential energy)

(Average) Power:

,

Momentum: , (impulse)

DATA A

, , , h

circumference =

, g = 9.80 m/s2, G = 6.67 10

-11N

m2

/kg2

standard atmospheric pressure = 1.013 105Pa, (water) = 1000 kg/m3

= (Stefan-Boltzmann constant)speed of sound in air at 20oC, v= 343 m/s, threshold of hearing, Io= 1.0 10

-12W/m2

elementary charge: , electron mass:

proton mass: speed of light in a vacuum: