Classical Physics Forum

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

Mechanics

I Is calling fictitious forces "not real" just about terminology?

Optics

I How do I stretch a laser from a beam into a sheet?

Thermodynamics

I What thermal cycle would describe the action of a candle carousel?

Electromagnetism

A Reflections at the source point of a transmission line
B What magnetic fields can this hollow rod shield?
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B Air pressure generated by driving at 60mph
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B Voltage & Current: Explaining the Basics for Beginners
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I What happens to resistance of tap water as voltage is increased?
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I Why is length considered a fundamental (base) quantity?
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I Equation of motion: choice of generalized coordinates
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I Alternative Approach to Solving Foucault's Pendulum Behavior
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I What does vector subtraction for two non-perpendicular vectors look like?
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I Does Pulse and Glide only work with manual transmissions and a kill switch?
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I Car low average speed vs aero drag relation
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B Correct SHM Equation: Does € Matter?
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I Conservative forces and internal and external forces
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B How does a bathtub/shower diverter valve work?
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B Causation: substance or event?
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I Question about Waves -- "frequency" versus "angular frequency"
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I I'm confused on which equation gives percentage uncertainty
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I Vertical acceleration of the water bubbles in a kettle?
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I Car drag coefficent vs fuel consumption link
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I About Bernoulli's equation for fluid flow
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A Normal force and force of friction inside a tube
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I Extremely strange consequence of the speed of heat value
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I Relationship between viscosity and velocity in fluid mechanics
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B Understanding the Doppler Effect at an Angle
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I I would like a better understanding of friction and hysteresis
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A Why are Euler's angles picked exactly that way?
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B Can Metal Pins Increase Heat Transfer in Concrete Walls?
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I Parameters of the rough surface (for electromagnetic scattering)
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I Can a Tower of Books Move with Lighter Forces?
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B Where am I wrong in this travelling faster than light Idea I've had?
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I I found 2 formulas about surface tension -- which one is correct?
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I Fundamental - Magnetic fields generated by moving electrons
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B Fundamental Problems With Exam Question: Moving Truck & Acceleration
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B Question about inductive and deductive arguments in science
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B How many electrons to make a stable gravitational object?
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B Rice Field Bubbles: Gotcha! Why?
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I Question about elasticity to help my understanding
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I Reaction force of and its relation to normal force and friction
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I Momentum of a Water Jet Impacting Plate
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I Brownian motion of charged particles?
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A How Can Skeletal Models and Physics Help Us Understand Pain Perception?
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B Doppler effect on electromagnetic waves in a car
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B Multimode optical fiber, physics beginner help :D
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B Acceleration -- How is the intermediate displacement speed derived?
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B Tangran, Inertial Mass and Gravitational Mass
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A Spectrum of the Liouville Operator
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I Water powered funicular with equal masses?
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B Can anyone tell me some formulas for acceleration?
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I Comprehensive List of Mechanics Formulations
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I Kepler orbits for planets of similar masses
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I Air friction in rotating ring magnet
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I Distributed Forces and force density....
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I Does the electrical force also respect the Kepler Laws?
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I Can trains use permanent magnets to be propelled?
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I Does the speed of light imply ....
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I Required Strength of a Strap connecting 2 Rolls
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I Hamilton's Principle (HP), Lagrangian
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A Contravariance, Covariance, stress and position vector
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I Integrating discs to find the gravitational force of a sphere
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B This rocket physics problem seems unrealistic
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I Pendulum Tension Force -- How to calculate the full vector?
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I Looking for a trajectory integrator that also supports cubic potential
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I How Do Magnetic Forces Differ Between Magnets and Wires?
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I Why Are 8 Valence Electrons Essential for Atomic Stability?
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I Acceleration From Rest Under Constant Power
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B How to understand the steradians equation for measuring a sphere of light?
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I Query on Electromagnetic Theory (Dielectric Boundary Conditions)
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I What Causes the Initial Acceleration Phase in Molecular Behavior?
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I Changes to a spinning skater's angular velocity
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B Gravitational acceleration and sub-atomic electric charge
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I Car acceleration if resistance forces don't exist
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I Water converted to plasma -- how does this work?
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I Error tolerant normal mode frequency
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A Principle of Virtual Work and the forces that DO NOT do work
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I (Airfoil) Why do boats have a pointy bow?
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B The 3D Universe: A Speck in the 4D Universe
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Why doesn't helium have any effect on the sound of my voice?
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A Independence of generalized coordinates and generalized velocities
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I Can Leverages and Propellers Work Together to Create Efficient Movement?
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I Do objects of differing mass fall at the same rate in a magnetic field?
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I How does a screw roll down an inclined plane?
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I Uncovering the Secrets of Water Slide Physics
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B How and why can multiplication combine physical quantities?
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I Number of Sig Figures and Precision
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I Interpreting solar event flux units
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I Difference Between Resistance Force and Friction Coefficient?
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A Explicit non-holonomic equations of motion
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I EM Four-Potential and INDUCED Electric Fields
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MHB How Do Conic Sections Relate to Orbital Mechanics?
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I Why do droplets of condensation run at an angle on a plastic sheet?
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A The force from the energy gradient
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B What's the reason microwave oven frequencies are at 2.45 Ghz?
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B Equivalence of Frictional and Applied Force
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B Sinusoidal wave function of t and x
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B Maximizing Mechanical Advantage in Levers: Investigating Size and Shape
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I Ball free fall 100m at equator, where is the landing spot?
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I What is the purpose of the vector α in the rotational work integral?
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I Steering a Car: Investigating the Forces of Rotation
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I What Causes the Darkening of Metal Bucket Color at High Temperatures?
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B Direction of Electric Field & Field Due to a Dipole
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I General expression of wind force on a sail....
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