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.
Equilibrium in 2D: Finding Tension and Support Reactions in a Cable System
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Error Propogation for Half-Life
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Driven simple pendulum - system of first order ODEs
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How do I solve for rotational dynamics using Newton's second law?
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Finding time in a pulley system
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Question regarding finding velocity give force and mass
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Quantitative Analysis of Electron Motion in a Uniform Magnetic Field
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What is the current in the loop
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Special relativity two moving frames
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Voltage Drops in Series Resistors
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Does the Angle of a V-Tube Influence Fluid Oscillations?
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How to calculate bridge deformation based on "design"?
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Finding Dimensions of plates in Electric Field
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Calculating Apparent Weight on a Rotor Ride
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Principle behind electrostatic shielding?
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Check Paper: Describe Apparatus, Sensor, Data, Physics, Writing
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What is the Momentum Change in Pairs Figure Skating?
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General question about conservation of momentum
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How does the diameter of a funnel affect the speed of air passing through it?
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How Do You Calculate Angular Acceleration After a Collision?
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Capacitor Charge Calculation for Series Connection with 9.0V Battery
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A simple relativistic time question
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How Do You Calculate Car Mass from Kinetic Energy Change?
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I think I understand, but where do you find force?
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Kinetic Gas Theory Calculations
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Conservation of angular momentum of disk and bullet system
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Moment of Inertia: Disk 1 & 2 Homework
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Circular Motion Question searching for Centripetal force
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How to Calculate Reversed Force of a Wedge | Friction and Wedges Homework
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Why is Block B not experiencing a normal force in this static friction problem?
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Question regarding block and pulley system with inertia
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Recoil velocity on frictionless surface
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How Is Angular Momentum Calculated in Different Pivot Scenarios?
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Moving vehicles and Doppler Effect
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Trouble understanding - to + vs + to - current flow
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Ideal Mechanical Advantage of this bicycle?
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Rolling without slipping over a plank
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Perfectly Elastic Collision Arrow / Finding Final Velocity
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Determining the direction of friction
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Find expression for electric field from magnetic field
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Does Walking with a Suitcase Involve Work?
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What Happens to the Tensions in a Cut String Problem?
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Special Relativity -- Velocity transformation
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Dynamics of Rotational Motion: Quarry Crane Problem
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Calculating acceleration when only have time and distance
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Medicine & Physics -- Question about chest tube suction techniques
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Egg Drop Project with Tiny Requirements
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Equivalent capacitance:pentagon shape
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How fast is ball thrown up to come down in 2 seconds
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Finding potential of conducting sphere
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Potential Energy of an Electron in a Battery
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First Law of Thermodynamics - Piston
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How Do You Prove Static Equilibrium in a Three-Mass, Two-Pulley System?
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Determine static coefficient of friction
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Voltage Distribution in a Circuit with Broken Lamps
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Rate of Change of Diffraction Pattern with Increasing Distance Between Slits
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Moment of inertia about center of mass with four holes?
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Questions about rolling and direction of static friction?
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Free body diagram for a sliding contact
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How to calculate the force on charge?
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What is the threshold velocity for using the relativistic energy equation?
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Total Moment of Inertia of Two Rods
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What is the solution to the 12 resistor cube problem using symmetry?
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Average current by particle moving in circle
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Voltage in Circuit: What Happens to Voltmeter?
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Quick question on Parallel RLC circuit (Conceptual)
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Determine the force to enable the object to move down
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What is the best way to approach solving this bungee jumping problem?
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Electrostatic force between two halves of sphere
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What Speed Makes a Pendulum Oscillate Most in a Moving Train?
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Spring constant of object in simple harmonic motion
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Muon special relativity problem,
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How Does Throwing a Partner Affect a Skater's Velocity in a Pairs Competition?
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Basic Kinetic theory: How many molecules are there?
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Circular Motion Seesaw Balance Question
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Various locations during a vertical circular motion
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Identifying series and parallel connections
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Relativity time dilation and length contraction
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Spin 1/2 systemin Sakurai quantum mechanics
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Time taken for water to drain from a tank through a pipe (fluid mech./Bernoulli)
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Calculating angle of ball after collision
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Is there no translational energy?
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Thermodynamics problem (zemansky 3.1)
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Energy Transformation Efficiency Problem
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Finding flux from electric field
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Predict the position of a particle on a rigid body
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The power delivered by gravity?
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Special Relativity - Lorentz Transformation & Matrices
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Maximum height of CM of a rotating stick
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What happens if i lift a weight on bathroom scales
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RC Circ, Capacitor charging Q....very lost
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Reflection of Waves and Formation of Standing Waves
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Solving the Mass of a Chain Hanging from a Ceiling
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Motion of parallel-incoming particles in gravitational field
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Grounding parallel plate conductors
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Confusing mechanics(Extracted from my university physics paper)
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Barometer Basics: Check Your Homework Answers
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Calculate electric field given the magnetic field
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Simple harmonic motion: mass on a spring is hit by a bullet
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Instant center of Velocity (check if I did it correctly)
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