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.
Marble Speed on a Track: Finding Spring Compression and Velocity
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Calculate Percent Error: Measuring 75cm with Meter Stick
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Battery with voltage V=12V is connected to the primary of a transform
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Centripetal Force + Law of conservation of energy question.
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Understanding Velocity in Waves
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Use Conservation of Momentum or Conservation of KE for spring problem
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Use Conservation of Momentum or Conservation of KE for spring problem
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Distance traveled after a collision
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How Fast Must a Roller Coaster Go to Stay on Track Upside Down?
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Sound intensity level, decibels
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Calculating Range of Santa's Roof Slide: An Energy Conservation Approach
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# of electron states in a subshell
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Add conductor between infinite sheet
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AP Physics B is kicking my butt. Where are the AP Physics B FRQs?
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Understanding Maxwell's Magnetic Field: A Homework Inquiry
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Wave Superposition: Solving for Resultant Amplitude
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How does light passing through a QWP become unpolarized?
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How should I use slow cross fast rule?
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Angular momentum of bicycle wheel
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Help Me Solve this Problem: My Attempt Didn't Work
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How Do You Calculate Relative Speed in Special Relativity?
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Bug on a pivoted ring: rotational velocity
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Why is the answer to this electricity question negative?
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Circular Motion (Orbiting Objects)
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Another Conversation of Energy Problem
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Energy conversion in a closed system?
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How Do You Calculate Tension in a Three-Mass Pulley System?
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General Questions about Eletric Field and Eletric Potential
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Infinite Sheet Potential Question
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When will I get total reflection?
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Solve Transformer Question: V1/V2=N1/N2
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Understanding Energy in RLC Circuits: Initial Conditions
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Farady Law Question: T=T/2 Current?
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Solving B.dl Question: Is Current 0 for Path AB?
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Solving KVL and KCL: Can I Say I1 = -I2?
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How Does Light Behave When Passing Through a Birefringent Prism?
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Relativistic Velocity Transformations
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A confusing word problem. Can any one solve it?
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Conversion of Mass to kinetic energy.
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Power and Electric Field problem
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Finding work, heat, and entropy in a heat engine
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Coriolis Force Direction with Rotating Ball and Velocities
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Calculating Acceleration of a Flywheel Driven by a Pulley System
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Rotational Motion with Elastic P. Energy?
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Resistors, parallel line notation?
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Relation between stopping distance and Kinetic Energy
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Hydrostatics and work done by a gas in a situation similar to a siphon
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Dimension Analysis: Find x, y, z To Satisfy Boyles Law
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How Is the Right Triangle Used in Truss Force Calculations?
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Balance Beam: Solve + Explain Help
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Circuit and Shielding Problems
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What is the change in density of water at a depth of 400 m?
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Marble loop roller coaster launcher
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Calculate Wavelength from Rydberg's Constant
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How Do You Calculate Angular Acceleration and Time for a Turntable Platter?
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Calculate Skateboard Force & Friction: 2.6x10^-2 & 1.2x10^-2N
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Inelastic collisions between two blocks
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What Does the Slope Represent in a Force vs. Acceleration Graph?
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Electric Field Strength problem.
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Calculating Friction Force from Velocity Equation
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Finding the amplitude in simple harmonic motion
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Understanding the Relationship Between Mass and Acceleration in Physics
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Using symmetry in electrostatic problem
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Pendulum Amplitude and phase constant
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Jumping a dead battery in a car
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Forces and acceleration of truck and car collision
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Kinematic Equation Homework Question
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What magnitude of tension is in the wire?
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Mass absorption coefficient of aluminium
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Induced EMF through a coil How/Why?
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The motor that drives a reversible refrigerator produced 142 W
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Work Air Conditioner Must Do To Keep Room Constant Temperature
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Change in sound intensity over distance
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Solve for Golf Ball Angle and Velocity: 300m Hole with/without Air Resistance
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Finding an expression for linear acceleration of a hanging mass
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Eccentric rotation of a trebuchet arm
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Need help with a Work and Energy problem
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Energy Transfers: Understanding Scenario with Wind-Up Toy
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Solving for Linear Speed of Spherical Shell After Rolling
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Where is this equation derived from? (general physics)
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Frictional Force Homework: Calculating Time to Stop
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Rigid Body Rotation: Find Vel & Action on Axis in Eq. Pos.
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How to Calculate Energy Stored in an RLC Circuit?
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Proving Cross Product Equation: A x (B + C) = A x B + A x C
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Geometry Help: Solving Lagrangian Problem
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How Do You Calculate Potential Energy in a One-Dimensional Interaction?
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Isobaric Compression: Homework Help for Ideal Gas Laws
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Current and Electric Field Direction for Electrons Moving Right
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How can i determine Specific heat capacity of Water cpv if i know all variables
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Circular motion/conical pendulum?
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Work of Drag Force: Find k & n Values
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Build a Balsa Bridge to Hold 20 lbs | Advice & Tips
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Finding acceleration when given coefficients
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Calculate Heat Flows in Engines Propelling a Car
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Calculating water pressure, gauge pressure
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How does pressure affect temperature?
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What is the efficiency of this reversible engine?
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What is the net work done if an object is ?
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Solve d with Forces/Torque for Statics Problem
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Determinging Acceleration and Distance
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