Classical Physics Forum

Join expert classical physics discussion on the principles developed before the rise of relativity and quantum mechanics. Including mechanics, electrodynamics, thermodynamics, optics.

Threads

Undergrad What software can I use to visualize transformations of the plane?

  • sari
  • · Replies 3 ·
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3

High School Creating Cells with Household Materials: Ideas?

  • jldibble
  • · Replies 3 ·
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3

High School Why does a passing car's music get louder and clearer as it approaches?

  • TalEly
  • · Replies 12 ·
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12

Graduate Overdamped vs underdamped Langevin

  • LagrangeEuler
  • · Replies 6 ·
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6

Graduate Understanding Negative Energy in Earth-Satellite Systems

  • ASG141
  • · Replies 1 ·
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1

Undergrad Are Oblique Coordinate Systems More Useful Than Orthogonal Systems in 2-D Space?

  • rkmurtyp
  • · Replies 6 ·
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6

High School Why Does Ice Float in Water at 9°C?

  • pscience
  • · Replies 13 ·
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13

High School How can I calibrate my Ohaus cent-o-gram model 311 balance scale?

  • tony873004
  • · Replies 4 ·
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4

Graduate Fair and unfair N-sided dice in principle.

  • Spinnor
  • · Replies 6 ·
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6

Undergrad Is the Conservation of Energy a Law or a Fact?

  • iantresman
  • · Replies 5 ·
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5

Graduate Drawing a gravitational field inside a planet

  • MalachiK
  • · Replies 10 ·
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10

Graduate Where Do Sections 3.45 and 3.46 in Goldstein's 3rd Edition Originate?

  • ASmc2
  • · Replies 9 ·
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9

Graduate What is the physical difference between compression waves and longitud

  • mikelotinga
  • · Replies 4 ·
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4

Graduate Why this solution to the 3D periodic Navier-Stokes?

  • davidpurvance
  • · Replies 2 ·
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2

High School Why are ice cubes not really cubes, but trapezes?

  • Nantes
  • · Replies 9 ·
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9

Graduate Vortices, Resonators, and Foam sleeving

  • DoYouKnow
  • · Replies 2 ·
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2

Undergrad Is there an algorithmic way of drawing phase portraits by hand?

  • mjordan2nd
  • · Replies 1 ·
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1

Graduate Complex Fourier series of sin (t)

  • unscientific
  • · Replies 3 ·
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3

Graduate Solving 1D wave equation for a flag (not attatched at both ends)

  • Flucky
  • · Replies 14 ·
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14

Graduate Predict timbre from First Principles?

  • phlegmatico
  • · Replies 1 ·
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1

Undergrad Fourier Transform of this function

  • unscientific
  • · Replies 6 ·
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6

Graduate Can we write icap-jcap=pi/2 ? why or why not?

  • AakashPandita
  • · Replies 27 ·
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27

Undergrad Is a Sine Wave Defined by Its Physical Shape or Graph Representation?

  • san203
  • · Replies 1 ·
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1

Undergrad Doppler Shift as Function of MUSIC

  • peterblair
  • · Replies 3 ·
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3

Fictitious forces in classical mechanics

  • greendog77
  • · Replies 10 ·
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10

High School Lower energy level more stable why?

  • Vivek des
  • · Replies 5 ·
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5

Undergrad Constraint-prof V balakrishnan video

  • ajayguhan
  • · Replies 7 ·
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7

Undergrad What are the Recommended Texts for Understanding Kepler's Laws?

  • AntSC
  • · Replies 3 ·
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3

Graduate How Much Mechanical Stress Can an Antimatter Drive's Loop Handle?

  • nehorlavazapal
  • · Replies 2 ·
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2

Graduate Choosing hue for colormap with linear perceived luminance

  • atrix621
  • · Replies 1 ·
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1

Undergrad Normal modes of a string thought experiment

  • Nikitin
  • · Replies 1 ·
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1

High School Name of the formula phi cos²θ + phi sin²θ

  • agermany
  • · Replies 4 ·
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4

High School Roughly, how many kg of fuel do we need to get x lbs into space?

  • Kidphysics
  • · Replies 1 ·
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1

High School What is the meaning of interaction in science?

  • manimaran1605
  • · Replies 3 ·
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3

Undergrad Why does resistance change in fluid flow from laminar to turbulent conditions?

  • SBMDStudent
  • · Replies 9 ·
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9

Graduate Why can k in the Delta Function equation be both positive and negative?

  • mathnerd15
  • · Replies 5 ·
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5

Graduate What do you think of the terms used in this article?

  • swampwiz
  • · Replies 1 ·
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1

High School Doppler Effect: Speed Relative to Ground, Source, or Listener?

  • Bassel
  • · Replies 2 ·
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2

High School Finding north with copper wire

  • MmeCurie
  • · Replies 2 ·
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2

Graduate Functions dependent on a greater number of parameters

  • tobiaszowo
  • · Replies 1 ·
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1

Undergrad Relative to What? An Energy Conundrum

  • CapnDub
  • · Replies 5 ·
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5

Undergrad What is the relationship between intensity and amplitude in a wave source?

  • Gauss M.D.
  • · Replies 2 ·
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2

Graduate How does radius of point spread function affect reconstruction errors?

  • cp05
  • · Replies 1 ·
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1

Undergrad Do batting gloves reduce slipping and energy loss when hitting?

  • jdibarto
  • · Replies 1 ·
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1

Undergrad How does a two open ended pipe resonate?

  • iScience
  • · Replies 14 ·
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14

Undergrad Relationships between frequency, amplitude and acceleration

  • DickT
  • · Replies 1 ·
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1

High School How can 2 signals go thru copper wire?

  • rogersb
  • · Replies 9 ·
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9

Undergrad Time for gas to flow from pressurized chamber to vacuum

  • geologic
  • · Replies 4 ·
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4

Graduate Why is V=fl a dispersion relationship ?

  • parsec
  • · Replies 2 ·
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2

Undergrad What Causes Conductive Film on the Surface of Glass?

  • iScience
  • · Replies 2 ·
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2

High School What psi can be achieved from a 60mph wind

  • Cyclonus
  • · Replies 4 ·
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4

Graduate Unity hypotenuse model with worldline and Pythagorean treatment

  • Lasand
  • · Replies 5 ·
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5

Graduate How does the Eötvös experiment achieve such high precision

  • davidchen9568
  • · Replies 3 ·
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3

Sensitive barometer indicating altitude

  • Alfred Cann
  • · Replies 2 ·
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2

Graduate On the nature of vacuum and questions thereof

  • Lensmonkey
  • · Replies 6 ·
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6

Undergrad Explanation of the discrete fourier transform

  • u0362565
  • · Replies 4 ·
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4

Undergrad Why Do Bounded Mediums Have Specific Eigenfrequencies?

  • saumya yadav
  • · Replies 3 ·
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3

Graduate Tracing seismic rays - possible intersection

  • FermatPell
  • · Replies 1 ·
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1

Undergrad Why does perspective skew some lines and not others?

  • ed2288
  • · Replies 11 ·
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11

Undergrad How does air temperature affect wind turbine noise levels?

  • xujipampil
  • · Replies 1 ·
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1

Undergrad Basic physics understanding. Could someone explain?

  • Ultermarto1
  • · Replies 4 ·
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4

Undergrad Why does summing three Fourier components not equal the square wave amplitude?

  • jeff.berhow
  • · Replies 5 ·
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5

Undergrad Assignment problem applications in physics or chemistry

  • martin_z
  • · Replies 4 ·
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4

Undergrad Sphygmomonometers energy storage?

  • pnorm91
  • · Replies 2 ·
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2

High School Why is one mole of oxygen 16 grams and how does Avogadro's number fit in?

  • kira506
  • · Replies 10 ·
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10

Undergrad What Are the Uses of RC Filters in Advanced Circuits?

  • potatocar
  • · Replies 6 ·
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6

Undergrad Longitudinal Wave Equation meaning and derivation

  • Enterprise D
  • · Replies 4 ·
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4

High School Designing a rope-climbing robot for a 2-meter climb

  • Timmy D
  • · Replies 15 ·
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15

Graduate Modal energy distribution in closed pipe resonance

  • quasar44
  • · Replies 2 ·
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2

Graduate Standing wave equation phase shift and boundary conditions

  • elemis
  • · Replies 1 ·
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1

Undergrad Trying to understand granular physics (includes fluid physics)

  • EPhantom
  • · Replies 1 ·
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1

Undergrad Guitar oscillations? How do they look?

  • mahrap
  • · Replies 6 ·
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6

Undergrad Are the Frequencies of a Plucked String and the Corresponding Sound Wave Equal?

  • SweatingBear
  • · Replies 1 ·
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1

High School How many significant figures in 110 km/h?

  • e-zero
  • · Replies 73 ·
3
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73

Graduate Standing waves - Wave Equation

  • elemis
  • · Replies 3 ·
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3

Undergrad Why does a harmonic plane wave have that mathematical form?

  • Tosh5457
  • · Replies 5 ·
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5

High School Pole vibrations without obvious wind or external cause

  • Quinzio
  • · Replies 4 ·
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4

Graduate Equation - Wave Equation Derivation Question

  • alejandrito29
  • · Replies 1 ·
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1

Undergrad Is gravity strongest in center?

  • Boy@n
  • · Replies 13 ·
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13

Undergrad What are the potential uses for ferrofluids in interactive museum displays?

  • Crystian
  • · Replies 2 ·
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2

Undergrad Equal probability principle

  • Abigale
  • · Replies 1 ·
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1

Graduate Why do frequencies exceed the beaded string limit in the continuum model?

  • mathskier
  • · Replies 18 ·
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18

High School Science Fair Ideas - High School Level Ideas Needed

  • Roninator
  • · Replies 1 ·
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1

Undergrad Where to find sample fluid stirring data?

  • muffinman123
  • · Replies 1 ·
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1

Graduate 2D Doppler Shift / Relative Velocities

  • awelex
  • · Replies 1 ·
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1

Graduate Oxygen Flow Through a Concentration Gradient

  • TheChannigan
  • · Replies 2 ·
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2

Undergrad How to find the phase shift and amplitude ratio

  • vtaela
  • · Replies 3 ·
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3
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8

Undergrad A Few Questions about Resonance

  • Daolothe
  • · Replies 4 ·
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4

Undergrad Purpose of natural log in gibbs free energy equation

  • thedy
  • · Replies 13 ·
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13

Graduate Studying Longitudinal Oscillations of a Stick

  • Numeriprimi
  • · Replies 2 ·
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2

Undergrad What do you know about ion thrusters?

  • zachmer
  • · Replies 5 ·
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5

Graduate What is the correct way to calculate streamlines of a vector field

  • Jonsson
  • · Replies 2 ·
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2

Undergrad Can someone verify a computational result for me?

  • cowmoo32
  • · Replies 2 ·
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2

Undergrad Vacuum chamber for filling bee comb

  • challenger
  • · Replies 5 ·
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5

Graduate Transverse Wave equation for a string of changing length?

  • czechman45
  • · Replies 2 ·
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2

Undergrad Classical spin system. Ising model.

  • LagrangeEuler
  • · Replies 2 ·
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2

Undergrad Mathematical model for hookah air flow

  • sydfremmer
  • · Replies 9 ·
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9

High School Downloadable incandescent spectrum

  • momar
  • · Replies 1 ·
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1

High School Why does air density decrease as we go higher in altitude?

  • sgstudent
  • · Replies 7 ·
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7