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.
Oscillation of a particle on a parabolic surface [equation of motion]
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Damped Oscillation Amplitude Decrease vs. Mass Relationship
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Why is the coefficient two in the work done by friction equation?
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Confused about a 3 mass coupled oscialltion
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Oscillation Spring Dampening Find Frequency
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Concept of electric field and hollow conductors
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Force and motion -- Person falling from 20m onto a cushion (EASY)
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From spinor to ket space: Equivalents eigen equations
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Prove that the derivative of the position vector equals the velocity vector
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Point mechanics -- Tension in a rope from a hanging mass
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A spring being compressed between two masses
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Calculating Phase Difference and Interference with Laser Light
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Calculate the center of mass of a deformed hollow cone trunk
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Equilibrium of a Rigid Body: Balancing Forces and Moments
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Position of piston related to ideal gas
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Fluid dynamics calculation -- Draining a barrel through a pipe
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Induced current in a square coil by a current-carrying wire
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Calculating Temperature Change in the Bullet and Block Problem
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Projectile Motion: Using an arrow to shoot a coconut dropped by a monkey
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How Much Energy is Released When a Uranium Nucleus Captures an Electron?
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Can Small Errors in Path Difference Affect Double Slit Interference Patterns?
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A basic question about Photoelectric effect
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Separating a wave function into radial and azimuthal parts
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Collision (Task help for medicine entry exam)
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What is the definition of Unit Optical Depth?
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Millikan Experiment Based Marble Mass Homework
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Area-change-rate of a coil generating a given induced current
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Can't solve an equation (Deflection of electrons in electrostatic field)
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How is the Expansion of the Universe Related to Recession Velocity?
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Speed for loss of of contact between a dumbbell and a table
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Thermodynamics: gas expansion formula or approximation error?
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Annihilation: calculation of photon energies
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Modeling Quantum State Evolution with Schrodinger's Equation
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Harmonic Motion Problem - Finding oscillation of charges in a circuit
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What is the formula for determining small angles in spherical diopters?
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Upward and downward movement of a rocket with the equation of motion
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Electric field of non-conducting cylinder
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Relativistic Relative Velocity Problem
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Harmonic Motion of a Mass between two springs
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Cannot understand author fully - Turbomachines
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Linear expansion of steel versus copper with increasing temperature
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Number of electrons emitted photoelectrically
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To find the resultant of forces on a lamina
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Using Faraday's Law to calculate the magnetic field
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Throwing Objects - Motion in Two Dimensions
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I don't understand the algebra in this answer
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Electric Field as potential gradient
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Gas Laws - pumped tires exploding at the top of a mountain
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Runner's track distance error problem
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Is the Solution for Finding Hall Voltage Correct?
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How Does Toughness Compare Between Brittle and Elastic Materials?
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Meeting of two bodies (cinematic)
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Dimensional analysis assumption
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Why Is the Uncertainty in a Cat's Weight Considered 1lb and Not 2lb?
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Manipulation of a Thermodynamic Relation
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Analyze the reaction in terms of constituent quarks
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Newton's Second Law of Motion -- Three masses, an inclined plane and a pulley
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Thermo: A Flat Tire and a Pressurized Tank
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How the flow angle along the blade would change along the length
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What is the relationship between surface tension and forces?
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Power Line Losses: Trivial Problem, Confusing Answer
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Tension force of a thread in a complex structure of six masless rods
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Change in Internal Energy in Accelerated Gas Chambers
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Time for a capacitor to discharge
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Law of Conservation of Energy Problem: Trampoline
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Does a Voltmeter's needle jump?
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Calculating Forces on a Corner with Identical Charges
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Minimum energy of a photon to produce ##\pi^+##
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Sand drops on a conveyor belt at constant rate
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Conservation of Momentum in Dynamic Engineering Systems
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Hyperons, pions and an expanding universe
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Rotation of a rod fastened to a wire
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A ball hitting a two-ball system (with a spring between them)
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Beats and Resonance - How to Find the Length With only Frequency?
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Circular polarizer followed by a linear analyser
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Efficiency of a heat engine given a P-V diagram of its process
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Confused with this proof for the Cauchy Schwarz inequality
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Finding the conduction current density
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Grade 12 Kinematics -- Will the car stop before the cliff?
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Changing galvanometer reading in the secondary coil of a transformer?
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Non-interacting gas in homogeneous gravitational field
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Increase in conductivity of intrisic germanium with temperature
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Pressure in a bomb calorimeter at the moment of combustion
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Angular momentum of orbit from orbit parameters and mass of sun
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Lorentz transformation of multiple events into one frame of observation
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Gauss' Law: Understand How to Calculate Flux
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Number of Steps on a Stationary Escalator with Varying Person Speeds
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Partition function of a particle with two harmonic oscillators
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Question regarding time period and distances of a comet
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Action variables for the Kepler problem
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What happens when the maximum is exceeded in the Mass-Spring System?
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Find the velocity and acceleration of a pulley in a mass-spring system
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Potential difference across the ends of a solenoid
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How Do You Calculate 4-Acceleration in Schwarzschild Coordinates?
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Tension connecting two collinear rotating objects
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Why Is Torque Calculated Differently in Rotating Hoop Problems?
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Motion in one dimension -- Experiments with a Hot Wheels car rolling down a ramp
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The angle of tilt of a gyroscope
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Force Exerted by fluid on a Bend, an Enlargement, or a Contraction
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RC circuit using complex numbers
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