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.
How Do Spring Length Calculations Relate to Frequency and Harmonics?
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Express E due to a point charge at the origin
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Vectors/ Calculus with i and j components
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Isothermic and adiabatic compression
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Evidence that the ship had its engine turned on
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Did i do this question completely wrong? (Statics-moment)
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Calculating Work Supplied by a Flywheel for Forming Machine Operations
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How Do You Convert Newtons to Watts for a Maglev Train Acceleration?
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Calculating distance between charged Balls
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Consequences of time not being continuous
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Electricity and Electric field
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Electrostatic Force and Field between two charges
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Mechanical energy for planet in elliptical orbit around star
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What force propels the runner forward?
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What is the velocity of the block pulled by strings
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How Long Does a Star Live When Converting Hydrogen to Helium?
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Confused about the Question asked (bernouillis equation)
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Doppler Effect: Train A and B Whistle Frequency Calculation
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Solving the General Solution for a Heavily Damped Oscillator
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Phase Shift in Sinusoidal Functions: Solving for Φ in Different Cases
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Why does alternate way of solving the problems not work?
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Finding the tension of a rope given the mass of a pulley
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Loss of energy in DC and loss reduction in AC circuits
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Pressure in the vessel containing water
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Magnitude of the force of static friction
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Why is Work Negative in PV diagram?
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Which sphere reaches the bottom of the inclined plane first
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Where Does Thermal Energy Come From in an Inelastic Collision?
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How does the density of water affect a sphere dipped in it?
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Electric Field Lines for Two Objects on a Frictionless Table
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Calculation for finding distance with regard to sound intensity
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PV Diagram Isothermas and Isochloric Processes
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Understanding PV Diagrams: Analyzing Work, Heat, and Temperature Changes
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Vector addition and the force applied to the shaft of the pulley
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Ice Cube Pressure: Temperature Difference & Distance
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Ladder Leaning against wall -- find the coefficient of friction
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EM: Evaluating a Poynting vector
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Calculating Potential difference (X Ray tube)
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Can I Solve This Massive Pulley Problem Without Using Energies?
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Pulley and Pins on a Frame (beginner statics)
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High voltage circuit with voltmeter in between
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Find max distance box on hingedbeam can be before rope snaps
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Moment/Shear Diagram Quick Question
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Master Fluid Problems with Bernoulli's Equations | Expert Homework Help
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Find the force between 2 blocks
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Is energy profile of a spring asymmetric with +x and -x?
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Equivalent resistance between two points
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Calculating the power output from a persons mouth
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Spring and Rock Homework: Finding Separation
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Batteries in series, parallel, and internal resistance
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Find the max compression of the spring
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Change in chemical energy of rocket
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Electric car and battery problem
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Is it possible to combine two springs with different constants?
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Speed of a pendulum at the bottom
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Quick Statics Problem (equi. systems)
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Question About Beginner Static Problems
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Using potential energy graph, find particle turning point
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Writing a result from a table and how many digits should the answer have?
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Need help finding angular momentum of a particle
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How to Calculate Moment of a Couple Using Cross Products?
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Frequency for resonance to occur
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Electric Flux Through Spherical Surface Centered at Origin
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Projectile motion, potential and kinetic energy
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Is Solenoid Inductance Proportional to Turns Squared?
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Need help with a specific (slope) problem in dynamics
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A solid disk of radius 23.4cm and mass 1.45kg....
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Problem about an impulse and a spring
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Sign of the Faraday-Lenz equation
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Calculating Resultant Load on a Structure with a Tensioned Rope
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Thermodynamics - Hypothermia - Heat loss
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Inelastic collision with an inclined plane
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AC voltage source driving an inductor and a capacitor
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Kepler's Second Law with Angular Momentum
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Physics Homework Help of converting to years (astronomy q)
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Verifying Answer to PV/T at A: Is T2 > T1?
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Equivalent capacitance in a circuit
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X-ray Flux density and a differential equation for photon scattering
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What is the Magnetic Field and Flux at Point O?
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Question about Intensity in an Interference Pattern
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Refractive index of light from permittivity
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Calculating Radiation Dose Rate for Ra-223 at Varying Distances
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Relativistic calculation of speed when the momentum is known
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Mirror: refractive index and thickness
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Should the H/D Ratio Be Positive or Negative for Increased Neutron Leakage?
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What is the tension in part GH?
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Motion of point when sound volume goes up
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How to know if there is an inverse or direct relation
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How can I find the wave equation u(x,t) of a string
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What will the final temperature of the coffee be?
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Finding the slope of a log-log graph?
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How to calculate critical mass?
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Friction problem for two block system on an inclined plane
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Understanding the implications of a momentum equation
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Calculting the length of a solenoid
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A Kirchhoff problem: Find the currents and voltages in this circuit
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Faraday's Law - loop turning in the Earth's B-field
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Electromagnetic induction emf question
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Using Kirchoff's Loop Rule to Determine Currents in a Circuit
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What mistake did I make in finding the net force on a rotating disc?
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