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Newtons 3 laws of motion
 1.a body at rest stays at rest, a body in motion stay in motion (straight line) unless outside force acts upon it.
 2.F=ma
 3.for every force there is an equal and opposite force.

(t/f) a body in translational equilibrium has a net force moving it at a constant velocity
false, a body at translational equilibrium has zero net force

formula for torque
torque=rFsin()

when calculating torque, what direction is positive, what is negative
counterclockwise is positive, clockwise is negative

formula for centripetal acceleration
a=v^{2}/r

formula for centripetal force
F=ma or F=mv^{2}/r

formula for work
 W=Fdcos()
 from pressure (isobaric process):
 W=P(V_{f}V_{i})

units for work and energy?
joule (kgm^{2}/s^{2})

formula for mechanical kinetic energy? gravitational potential energy?
KE=mv^{2}/2
U=mgh

formula for momentum
p=mv

formula for impulse?
delta p or j=Ft=mvmv_{0}

formula for center of mass for m_{1} and m_{2} at x_{1} and x_{2}
X=(m_{1}x_{1}+m_{2}x_{2})/(m_{1}+m_{2})

(t/f) kinetic energy is conserved in a completely elastic collision
true

(t/f) momentum is not conserved in a inelastic collision
false, momentum is conserved in both elastic and inelastic collisions

formula for heat gained and temperature change
 Q=mc(T_{f}T_{i})
 cspecific heat

what is heat of fusion
energy required for phase change from solid to liquid

formula for heat gained or lost during phase change
 Q=mL
 Lheat of transformation

formula for first law of thermodynamic
delta U=heat energy gainedwork done by the system

2nd law of thermodynamic
entropy of a closed system will either increase or remain unchanged

density of water
1000 kg/m^{3} or 1g/cm^{3}

formula for pressure
P=F/A

formula for absolute pressure
P=surface pressure+density*gravity*depth

what is gauge pressure
pressure in excess to atmospheric pressure

formula for buoyant force
F_{b}=density*g*V

a pipe of varying cross sections, how do fluid velocity and cross section area related?
A_{1}V_{1}=A_{2}V_{2}

formula for Young's modulus
Y=stress/strain
 stress (F/A)
 strain (delta L/L)

Coulomb's law
F=kq_{1}q_{2}/r^{2}

formula for electric field (E) at a distance (r) from a charge (q)
E=kq/r^{2}

formula for force that a charge (q) experience in a electric field (E)
F=qE
since E=F/q

unit for electric field
Newton/Coulomb
or Volt/meter

