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.
Inelastic Head-On Collision: Understanding Momentum and Kinetic Energy
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Calculating Tension in Ropes Connecting Multiple Barges
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Velma and Mort relative motion question
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Special relativity and relative motion question
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Calculate Tension Forces in Rope for Two Barges
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What is the difference between above and below the horizontal?
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Need help on this projectile motion problem
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Static equilibrium and rope tension
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Inelastic Collision Energy loss
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Power Delivered From Black Body
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Rolling Friction of Bicycle Tires
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How Do You Calculate the Force Constant of a Spring?
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Circular motion of a steel block
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Electrical potential involving a spacecraft
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What is the natural force of a 25kg block that is not moving?
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Therefore, the angular acceleration is 3.925 rad/s2.
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Calculating Velocity after Skateboard Jump - A Physics Problem
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What is the magnitude of acceleration for a block released up an inclined plane?
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Calculating Building Height and Rocket Trajectories
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How to determine which point to take the moment about?
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Potential of Point A to Point B in Difficult RC Circuit
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Electric potential linear charge
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Force Components, Friction, etc. Check my work?
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Frictional Force Direction Problem
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How Long Should Radiation Therapy Last After Two Years to Match Initial Dosage?
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How Long Does It Take for a Car to Stop with Friction After Engine Shutdown?
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Identify the following motions as positive or negative accelerations
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Unit Cell Problem: Find Volume Unoccupied | Help Solving Entrance Exam Question
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Can You Verify My Calculations on Spring Compression and Energy Transfer?
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Calculating the velocity of a hanging object attached to a disc
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Calculate the difference in height of the fluid levels
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Circuit with 3 batteries and 4 resistors
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I have a qeation from my work book that i cant solve.
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A weight suspended by two strings
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Solving for Compressed Spring Distance after Collision
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Pendulum Speed at Different Heights
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Solving for v_y max in a Spin-Friction Free Tennis Ball Model
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Photoelectric Effect: Solving the Mystery of Big Negative Interception
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Problem involving a skier, friction and conservation of energy
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Determine ruling from grating constant
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What are the steps to solve a work problem?
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Prelab rotational motion question
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Finding Forces & Work: 105 kg Mass Suspended by 7 m Rope
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Impact of Jet Experiment: Error & Effects
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Electricity Question Amps & volts confusion
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Maximum Acceleration and Coefficient of Friction
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Calculating Mass of a Block in SHM with Given Parameters
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Centripetal Acceleration of car
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Frictional Force and acceleration
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How Long Will It Take for the Entire Chain to Slide Off the Table?
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What is the effect of applied pressure on a partially filled U-shaped tube?
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Ranking Rotational Inertia Task
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How Can You Design an Adiabatic and Reversible Thermodynamic System?
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What is the current through each resistor in this circuit?
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Hammer striking an anvil with a velocity of 50ft/sec
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Calculating the average force of a molecule in a vessel
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Is relative velocity confusing in multiple vector systems?
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Work & Energy: When to Use PE vs KE?
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Finding vC(t) for a Critical Damping RLC Circuit
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I understanding conceptual question for particle tracks in a chamber
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Maximize Stone's Height Thrown From 56m Building - 2d Kinematics Help
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Are These Physics Homework Answers Correct?
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Analyzing a Pulley System: Solving for Energy and Work
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Solving Refraction: Critical Angle & Min. Angle of Incidence
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What is r hat (^) like exactly and how do you calculate it?
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Calculating force from distance traveled and initial speed of projectile
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How to Calculate the Magnitude and Angle of the Total Force of Three Charges?
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A system has non-degenerate energy levels with energy
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Is a coefficient of friction of 7.7 on mousetrap car reasonable?
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Find the acceleration of a pulley system
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Get Help Solving a Cylinder in Equilibrium Problem
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Help calculating work in an xy plane
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Magnitude, 2D co-ordinates and Coulomb's Law
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Light waves and intereference patterns
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Speed of waves and time delay question
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Designing a Self-Supporting Egg Catcher: A Scientific Approach
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Wavelength, speed and frequency question
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Wave constructive and/or destructive interference question
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What did I do wrong? (Newton's Second Law)
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What is the coefficient of kinetic friction in this problem?
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Universal Gravitation w/ Earth & Moon
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Thermodynamics atmospheric pressure Question
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Charged particle passing through velocity selector
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Average velocity, displacement vector.
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The Impact of Current on Circular Paths: Examining Equation 1
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Why Use Kinetic Energy Instead of Momentum to Stop a Car?
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What is the acceleration of Steve Prefontaine during his 10-km race?
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What is the value of the B field in Teslas, inside the Helmholz coils?
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Pin and cable supported by a beam
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Determining the velocity of sound in the air by the resonance method
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Converting pressure to atomspheres
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Finding the angle of the velocity vector of a projectile at moment of impact
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Moments, calculating force exerted on ladder by wall
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Kinematic Problem: MJ & SP Meet - Find Distance
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Potential of Spherical Shell with Nonunifor Surface Charge
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Calculating Time for Mass to Travel Distance on a Pulley
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Newton's Laws Conceptual Problem
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Solving Physics Problem 9-72: Angular Speed of Pulley
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Can a Strong Man Push Two Freight Cars at Different Speeds?
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Equivalent spring constant of a system
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