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.
The Secrets of Simple Physics: 2 Problem Solutions Explained
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Calculate the speed of the particle
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How many meters does the spring compress?
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How Does Temperature Affect the Period of a Pendulum?
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How Does a Rotating Charged Particle Beam Maintain Focus?
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Current balances & Electromagnet Induction
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Interference with two speakers
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How Does Non-Conservative Force Affect Mechanical Energy Along Different Paths?
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What Is the Minimum Energy Required for a Proton to React with Lithium?
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Computing Mass of gas molecule from specific heat
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Rotational Dynamics Practice Problems
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Why Are Both Angles the Same in an Inclined Plane Pulley System?
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Help with kinematics equations (d = v t and the projectile one)
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Physics Newbie Needs Help with Basic Problems
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How Does Moving Closer to the Fulcrum Affect Teeter-Totter Balance?
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Calculating Energy Usage of a Hair Dryer
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How Does a Ladder in Equilibrium Affect the Forces on a Window and Ground?
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Elastic collision in two dimensions
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Understanding Vector Addition: Pythagorean Method vs. Direct Addition Explained
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Biot-Savart Law & Magnetic Field: Clarification
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About Kinetic energy of circular motion
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Distance between tourques/forces
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Solving Pendulum Problem (b): Kinetic & Potential Energy
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How can I calculate the force of friction on a rocket launched at school?
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Work Through a Displacement At An Angle
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What Happens to Momentum in a Perfectly Elastic Wall Collision?
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Understanding Cos and Sin: Tips for Using Trigonometry in Physics Problems
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How to Cut Metal to Produce Specific Musical Notes?
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Determine the fraction of the volume
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What is the velocity of m when it reaches point P?
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Calculating Average Force on Landing: Understanding Momentum and Time
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Fictitious force and accelerating airplane
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Spring Ramp Problem: Maximum Distance for Compressed Spring Calculation
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Why is mg=mv^2/r for centripetal motion instead of mg+T=mv^2/r?
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Relative Motion: Collision of Two Spaceships on Earth
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What are the forces involved in this physics problem?
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How Fast and Powerful Was the T Rex?
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Conceptual question about torque and balls
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Why Isn't the Child's Pulling Force Shown in the Free Body Diagram?
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Shotput problem involving projectile motion
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Normal force acting on an loop?
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Thermodynamics: entropy and engines
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Solving Spring Gun Physics Problems: Acceleration, Speed & Height
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Calculating Force Exerted by Gas on Container Walls
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Thermal Physics: Kinetic Energy of Neon Molecules
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Total Stopping Distance at 80mph: How do you calculate it?
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How Can Cylindrical and Spherical Coordinates Calculate Moment of Inertia?
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How Is Induced EMF Calculated in a Current Loop with Increasing Current?
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About perfectly inelastic collision
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Radius of synchronous satellite from a planet
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How Many Balloons Can One Helium Tank Fill?
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Car Crash and Such: Investigation and Analysis
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Finding acceleration of a pulley using forces?
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Optimizing Trajectory for Perfectly Elastic Collisions: A Super Ball Experiment
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Sound intensity increase as a result of wave interference?
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Kinetic Energy of Object Question
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Angular momentum and Springs (2 ques)
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Momentum problem (Car and object)
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Helium Balloon and Compton Generator
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Calculating Spring Force Constant from a Dropped Ball
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Oblique impact of smooth spheres?
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How Do You Calculate Initial Acceleration in Newton's Laws Problems?
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How Do You Calculate Pressure and Force in Deep Sea Conditions?
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Bouyancy, Pressure, Spring Scale
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Why Does My Series Circuit Show a Voltage Discrepancy?
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Calculating Displacement & Intensity of 1665 Hz Wave
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Find the Phase of a horizontal spring
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Can a Bead on a Parabolic Wire Exhibit Simple Harmonic Motion?
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Optimal Angle for Westward Flight with Crosswind | Vector Problem Solution
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Magnitude of acceleration problem
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Calculate Air Temperature for 4th of July Fireworks Using Speed of Sound Formula
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Vo = (310 Hz / 340 m/s + 0 m/s) * (340 m/s / 342 Hz)Vo = 0.907 m/s
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Calculating Intensity of Sunlight Reaching Jupiter
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How to Calculate the Speed of an Approaching Vehicle Using Doppler Effect?
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Efficiently Heat Soup: Calculate Time Needed with 350W Immersion Heater
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Calculate Moment of Inertia & Angular Momentum of Helicopter Main Rotor
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What Happens When a Fast-Moving Cube Collides with a Stationary Ball on a Table?
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Simple Harmonic Motion of an ideal spring
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What Happens to a Punctured Pressurized Canister as It Sinks in the Ocean?
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QUESTION:What is the bird's average acceleration along its flight path?
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Coefficient of Static Friction Problem
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Solving Two-Block Friction Problem - Force Calculation
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Calculating Length of Pendulum with 12.0 N Weight and 1.2 s Swing
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Basic Mechanics - Projectiles Q's having problems
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Huygens described light as a wave
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Physics Problems: Fighter Jet, Forces, and Airplane Speeds Explained
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Questions on momentum and collisions
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Your friendly physics retard is at it again
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Why Is Concrete Weak in Tension and How Can It Be Improved?
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Calculate Mass of Missing Piece Exploding Boulder
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Resultant of 1 cm and 4 cm Vectors: Max & Min
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Simple Harmonic Motion and parallel-axis-theorem
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One mass on, one half off, attached by a string
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What Does v² Represent in the Equation v² = u² + 2as?
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Calculate the components of the vector
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How Accurate Are My Vector Addition Results?
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How Do You Calculate the Mass of a Spring in Simple Harmonic Motion?
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What is the velocity at impact?
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Help with a problem of a Sphere
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Why Is Total Kinetic Energy Conserved in Some Collisions but Not in Others?
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