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.
Calculate Frictional Force: Object on Wood with 730g Weight and 91.5cm Length
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Torque Question airplane wheels
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Bullet and pendulum bob initial speed help momentum.
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Find the maximum height of a rocket fired vertically
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Solving a Particle's Spiral Orbit under Central Force
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What is the difference in your reflection when moving at the speed of light?
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Quick easy graviational problem
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Compute Work Done by Air: 103kPa to 101.3kPa
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Calculate Earth's Orbital Period Around the Sun | Gravitational Problem
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Entropy vs Temp graphfind Volume?
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Simple harmonic motion of a spring
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How Fast Can Neutron Stars Spin Before Losing Surface Material?
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What is the Absorbed Dose of Radiation for Ingested Radioactive Material?
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How Much Gold Is in the Alloy by Mass?
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Maxwell's relations (thermodynamics): validity
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The distance (not horizontal nor vertical) of a rock traveled in a projectile
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How Do You Calculate Angular Frequency in Simple Harmonic Motion?
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How to Calculate Gauge Pressure to Compress Water?
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Bouncing Ball Lab: Calculate Distance & Time
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Solving the Problem of Calculating Force and Torque on a Door
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Acceleration Due to Gravity Problem HELP
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Solving Light and Lenses Questions: Focal Length, Magnification, Distance
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Energy Problem involving simple harmonic motion
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Density & Specific Gravity and Uniformly Accelerated
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How far does a baseball player slide before coming to rest at third base?
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Question on Conservation of Momentum
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Homework EquationsN/A The Attempt at a SolutionN/A
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Induced EMF: Solenoid in Square Loop
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Solve Uncertainty with Significant Figures: a-d
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How can I design a stable spring launcher for my ISU project?
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Calculating the Speed of Water Exiting from a Sprinkler
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How Does Coulomb's Law Determine Force in a Charged Square Configuration?
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What Forces are Involved in Torque and Equilibrium Problems?
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Torque and Power (looks pretty simple)
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What Happens to the Center of Mass When a Penguin Moves on a Sled?
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Projectile Angle Help: Solving for Launch Angle with Initial Velocity of 20m/s
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Hot cup of delicious Radium Water
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How Do You Correctly Rearrange the Equation d=vt+at^2/2 to Solve for a?
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Ap physics at my highschool gave me a hard question
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Calculating Magnetic Field Strength for Parallel-Plate Capacitor
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What is causing the discrepancy in the bullet momentum problem?
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Calculating Average Power in a Car's Engine
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Impulse of Cricket Homework: Find Magnitude
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Time Constant 1/RC: Origin & Meaning
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Understanding Torque: Is it a Constraint for Motor and Generator Systems?
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Circular Motion and Gravitation of a star
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Answer Pressure & Force on Ear Drum: 33.576 N/m2 & 1.746 mN
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Fluids and pressures (artery question)
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Calculating Resistive Force on Styrofoam Dropping from 2.00m
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Understanding Bullet, Block, and Kinetic Energy in a Loop-the-Loop System?
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Inelastic Collisions and Dissipation of Energy
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Calculating Speed Needed to Break a Parachute with Nylon
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Torque and paralle-axis theorem - question
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Photon emissions from hydrogen
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Photon emissions from hydrogen
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Easy Question- cant seem to get it
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3 explanations of comet velocity. OK?
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How Do You Calculate Pressure Amplitude and Force on an Eardrum from dB Level?
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Calculate the mass of the air in the cylinder
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Lagrangian of System w/ 2 M masses & Rigid Rod - Physics Homework
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Calculating Sound Intensity 24 m from a Loudspeaker
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How Does Playing Alone Affect a Violinist's Sound Intensity Level?
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Calculating Force from Atmospheric Pressure on Sheila's Palm
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Circular Motion and angle alpha
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Motion of an object attached to a spring
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Can You Calculate This Formula Using Given Values?
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Calculating Sound Energy from Isotropic Loudspeaker
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Completely Elastic Proton Collision
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Volume of a cube moving relativisticly fast
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Total Internal reflection question
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Electric Charges: Forces on A and C Explained
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How Many Orbits Must an Electron Complete in a Betatron to Gain 25MeV?
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Frictional Force Block Problem-VERY EASY But need HELP
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Slope Amplitude: Physics Help for Newbs
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How Does Surface Impact Affect Force on Falling Putty?
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Calculating Temperature Rise in 100m Waterfall: Heat Energy Questions
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Find the mass of the our galaxy
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Debunking Your Friend: Why Their Answer to Astronaut Pen Question is Wrong
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Theory of special relativity (conceptual problems)
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How Does Spring Compression Affect Mass Velocity on a Frictionless Table?
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Does restitution coefficient depends on kinetic energy?
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Pratt vs Howe Truss Bridge Building: Deciding for Physics Class
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Solve Elastic Collision Problem: Proton and Alpha Particle Kinetics
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Static Friction, stuck on a problem
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Help with some Quantum physics please
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How to Derive the Inclination Angle of a Projected Particle?
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Need Help with Homework? Solve Two Physics Problems with Expert Guidance
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Thermal physics problem on steel bar
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Kinetic Friction, did I do this properly?
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Rotational Dynamics Practice Problems Help
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What Are the Frictional Forces at Different Inclines for a 2kg Block?
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How far behind the pinhole should you place the viewing screen?
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Elastic Collision of two blocks
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What kind of expansion is this?
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Find Lambda_2 for Double Slit Interference Pattern
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Understanding Simple Harmonic Motion: Equations and Parameters Explained
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What Points Determine Maximum and Minimum Velocity in Spring Oscillations?
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Kinematics / Acceleration Problem
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Where Does the Moon's Gravitational Pull Overtake Earth's?
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Solve Machines Problem: Ramp 18m Long & 4.5m High
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