Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Why is the derivative of the potential at a surface assumed to be continuous even though there is surface charge?
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Current through shorted branch -- clarification
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Different way to find center of mass of Hollow hemisphere
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Calculation of Tensile Forces in Piston-Type Water-Lifting Devices at Elevated Locations
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Errors and significant figures
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Collision of a bullet on a rod-string system: query
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Explain this asphalt sheen
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Can terminal velocity be determined from the information given?
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A cylinder connected to a hanging mass
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Compton shift problem
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Atwood's with a cylinder - Rotational Motion
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Help me to clear my doubt about a problem of Classical Mechanics (Car and Bicycle)
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Tension in a string connecting two blocks having equal and opposite velocities
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Physics Problem on Tension in Water
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Physics Extended Essay about Gauss' law and/or Lorentz force
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Toboggan on circular arcs
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Will Y-Direction Motion Cease with X-Direction Acceleration Only?
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Projectile problem: A block released from a balloon
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Help on reflection of a wave from fixed end without transmission
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Electric field due to arc shaped thin rod
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Angular Momentum- Conserved or not?
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Irodov- 1.123- Simple conceptual question with two masses connected by a spring
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Vertical Circular motion- A confusing question
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Most probable velocity from Maxwell-Boltzmann distribution
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Reconcile poundforce w/slug and lbmass
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Not a typical RL circuit...
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Problem with pulleys - two fixed and one movable
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Is this an oversimplification? (treating a lens as a set of prisms)
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Change in Displacement Formulation
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Definition of pound force
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3
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Current through an inductor as a function of time
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A hanging ring carrying current in a uniform magnetic field
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Flux through a cylindrical surface enclosing part of a sphere
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Specific heat capacity and latent heat
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Calculating the Planck Length
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Can a dipole be modeled as a point charge?
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Calculate the radius of gyration for a plane figure
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Dynamics of Circular Motion
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Calculating acceleration of a prism and block connected to a wall through a rope and pulley
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Block drifts off between two moving planes through friction
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The sign of the change in potential
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How come violet, with the shortest wavelength, is refracted the most?
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Calculating the time needed until a known velocity for a vehicle with friction as a function of velocity
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Question About homework on Coulomb's Law
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Variable Mass system : Sand falling into a Freight car
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Spherical conducting shell enclosing a non-conducting core
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Concentric conducting cylinders
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Slight Confusion in Introductory Mechanics (Dynamics Problem)
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The flux through a cylinder from a charge at the origin
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Writing a vector parallel and normal to a unit vector ##\hat n##
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Equilibrium Position of a Hanging Candy Cane
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An interesting GCSE question: Why are electric lamps connected in parallel in house wiring?
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LC oscillations - two capacitors and an inductor
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Angular motion of a car wheel traveling at certain speed
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5 charges within a square boundary
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Newton's law of gravitation, energy and centre of mass question
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Acceleration of an Electron in a Uniform Electric Field
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Two charged spheres connected to walls by two springs
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Measurement technology textbook problems
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Ice Core Density Problem (Inspired by NEEM)
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Finding the charge on pith balls
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2D rigid body mechanics: force applied on sliding cart
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Cutting the Dose Rate in half with shielding
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🔹RC Circuit with Series Capacitors — One Pre-Charged, One Uncharged
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Measurement technology textbook problems
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What is the Final Temperature When Mixing Water and Ice, Assuming All Ice Melts?
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Projectile motion with ##N## bounces on the ground
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How to calculate freezing time for a moist food by-product (75% water)
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A lead bullet gets embedded in a lead block
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Can the braking force be significantly greater than the force acting on the brake structure?
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Question on magnetism: Circular motion of charged particle in a Magnetic Field
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A question about a wheel rolling without slipping while tied to a cube
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Thermally insulated container with alternating series of walls
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Can somebody explain what is happening here? (sunlight refracting in Earth's atmosphere)
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An exploding cannon shell
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How to Calculate Amplitude Decrease in Damped Harmonic Motion After 10 Cycles?
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Minimum angular velocity of a point mass on a rotating rod
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Roller coaster mock Lab Report
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Faraday's Law and magnetic flux
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Physics exercise: Pressure in this Fresh Water Tank
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Finding displacement from position time graph
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Acceleration of beads on a ring
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Rope between inclines with maximum length of hanging middle portion
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What is the derivation of the second equation for area velocity?
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Find in terms of ##h## when ##P## comes instantaneously to rest
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A stone is dropped from an ascending balloon...
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Any Edexcel A Level Physics Teachers Here - Paper 1 Q13?
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Coulomb’s Law Problem: Electrostatic Forces Between Charges
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Calculating flux through a plane cutting two concentric cylinders
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Identical cones rotating while in contact with each other
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Ford Nucleon -- Fission Powered Car Calculation
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Collision between snooker balls
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Introductory Physics: Connection of Resistors ...
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Friction on a spinning wheel when it is dropped onto the ground
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Frequency to wavelength question (thermal Doppler broadening)
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Acceleration of a Block Sliding Down a Wedge
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Calculating velocity of a particle if distances are constant
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How to find motional emf w/o an equation for mag field?
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Calculating the voltage across capacitors and resistors with switches
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Find V-I characteristic for this circuit with ideal diode
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