Maths/ES Flashcards
eccentricity of circle
e = 0
eccentricity of ellipse
e < 1
eccentricity of parabola
e = 1
eccentricity of hyperbola
e > 1
discriminant of circle
d < 0, A = C
discriminant of ellipse
d < 0
discriminant of parabola
d = 0
discriminant of hyperbola
d > 0
heat of fusion of water
80 cal/g
heat of vaporization of water
540 cal/g
2 simultaneous events may not be simultaneous to an observer in relative motion
relativity of simultaneity
moving clocks ticks more slowly
time dilation
shortening in the direction they are moving to the observer
length contraction
light rays bend in the direction of a gravitational field
light deflection
rotating masses drag along the space time around them
frame dragging
Lyman series
n2 = 1
Balmer
n2 = 2
Paschen
n2 = 3
Brackett
n2 = 4
Pfund
n2 = 5
Humphreys
n2 = 6
observed entropy’s behavior
Rudolf Clausius
“discovered” chemical potential
Gilbert Lewis
potential to change the Gibbs Free Energy
chemical potential
entropy was first explained by
Ludwig Boltzmann
method of filling up a gas with defined volume and weighing it
Regnault method
wrote the Third Law of Thermodynamics
Walther Nernst
length of 1 nautical mile
1.15 miles
ability to resist deformation in the elastic region
stiffness
ability to resist deformation in the plastic region
toughness
what causes hardening of lime?
absorption of CO2
a contract that cannot be accepted as legal in a court of law because of a condition that is not legal, information that is not correct, etc.
Unenforceable contract
This theory postulates that failure will occur when the strain energy per unit volume due to the applied stresses in a part equals the strain energy per unit volume at the yield point in uniaxial testing.
Maximum strain energy theory
states that the failure or yielding of a ductile material will occur when the maximum shear stress of the material equals or exceeds the shear stress value at yield point in the uniaxial tensile test
Maximum shear stress theory
