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.
Solve Car Impulse Physics Problem 1: Acceleration, Distance & Speed
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How High Does the Tennis Ball Rebound After Elastic Collision?
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Confusing System of Masses Question
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Confused on Constructive/Destructive Interference
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How Does the Sun's Gravitational Pull on the Moon Compare to Earth's?
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Simple Constant Acceleration/Directional problemWhat Am I doing wrong
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Binary star system and Apparent magnatudes
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Conducting Sphere Energy Calculation | R, q, and Vacuum | kq^2/(2R)
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Calculating the electric field from the potential
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Find Resistance Between A and B - 5.0Ω, 98.0Ω, 16.0Ω
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Power of a Pump draining a flooded basement
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Solve 2D Motion Problem: Initial Velocity 8.40m/s, Angle 17°
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Find the magnitude and sign of the point charge at the origin
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What Are the Directional Angles for Electric Forces in an Equilateral Triangle?
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Right Hand rule, explain please?
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Question about total vector displacement, BUGGING ME OUT
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Raindrops striking car - find impulse
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How Much Heat Does a Weightlifter Produce in a Lift?
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What is the efficiency of a solar collector made of an aluminium canister?
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Electronics converting sine waves to current
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Calculating Forces and Work in a Radon Gas Transmutation
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Finding the direction of the resultant vector of three vectors?
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What is the net force on a weather rocket during its flight?
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Falling coffee mug, time of descent
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Conservation of momentum physics homework
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Why Do Signs Matter in Calculating Forces Between Charges?
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What Causes the Unique Shadows and Light Effects of Water Striders?
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Electric Field problem Is my math wrong or am I doing something else wrong?
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Is a reversible isothermal process truly without energy change?
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Solve Momentum Problem: Find Ball Velocities
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Why Do Dynamic and Static Methods Yield Different Tension Results?
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What is the electron and beta rays?
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Magnetic field curvature question
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Mastering Compton Scattering Squaring for Scientists
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Finding Resistance Between A & B: Solved
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How can I calculate the electric field and force between two charged rods?
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Conservation of momentum astronaut problem
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Calculate Power Absorbed by Each Element in Circuit
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Please help with this simple harmonic motion question.
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What Are Heavy, Light, and Split-Off Bands in Bandstructure?
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Barrier tunneling - Intro to QM
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Rotational Energy and Moment of Inertia of a nitrogen molecule
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Find n of a mass confined between 2 rigid walls?
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Electrons and Parallel capacitors: after special relativity.
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What Motor Power is Needed to Move a Cylinder Drum?
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Solving Energy & Work Homework Problems
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Electric Field of +4.0*10^-9 C in 1600 N/C Field
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Angle of inclination of the projectile: θ
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Torque, energy, and average power
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True/False: Theory of Relativity Questions
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Solve Plane Problem: Find Time & Distance for Dropping Supply Crate
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How Does a Rolling Ball's Velocity Change with Constant Acceleration?
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Relativity, space contraction and rotation
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The Gravitational Force and Periodic Motion: A Tunnel Through Earth
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Electric Potential: Calculating Work to Move Charge from P to Infinity
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Equilibrium and Elasticity problem hw due tomarrow
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Gravitational force between 2 people
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How do I find the work and power if I have a mass in Newtons?
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Forces, Acceleration Hard Stuff (HELP)
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Calculate Friction based on v, t, m & F
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Waves: velocity, frequency, wavelength
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True/False Help: Index of refraction and Reference Frames
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Net Force of object changing velocity
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How to Solve a Gauss' Law Problem in a Spherical Region?
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Calculating Work: Pushing a Block Up a Frictionless Incline
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What is the relationship between work, power, and lifting an object?
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What font should I use for lab reports?
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Conservation of energy of an elevator cable
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Challenging Problem - System of Masses - Try It
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Electric Potential and Spheres
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What Is the Capacitance of a Parallel-Plate Capacitor with Circular Plates?
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Some more magnetic field/induction questions
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Electric Conductors and Storage
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How Is Work Calculated in a Diesel Engine Thermodynamic Cycle?
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Calculating Impulse and Average Force for a Ball Dropped on a Floor
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Recording power and lumens for light bulbs.
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What Is the Optimal Inner Radius to Minimize Electric Field in a Coaxial Cable?
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How Do Equilibrium Conditions Relate to Forces in a Bridge Member?
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Optics: Distance of Key in swimming pool
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NPN Transistor: Facts, Power Supply, Queisecent Point
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Can You Calculate the Pinger's Angle Using Hydrophone Data?
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Solving the Energy Problem: Help a Skier Glide!
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Static Equilibrium - board problem
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Man Walks Up Stairs: Work Done?
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Why Does Plate Separation Affect Capacitance?
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Calculating Maximum Lead Shot Capacity of Tin Can
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Electromagnetism - Need Help for Test
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Beam Deflection in a Television Tube
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Making current and voltage in phase
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Simple Harmonic Motion of a gun
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Why Does the Equation mg = mv^2/r Work for Calculating Satellite Altitude?
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Some magnetic field/induction questions
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Calculating Transverse Velocity of a Star
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How Do You Calculate Tension in a Wrecking Ball Support Cable?
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Zero Torque and Static Equilibrium pulley problem
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Solve Carnot Engine: Efficiency (T1-T3)/T1
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What is the Time Constant for a Capacitor Circuit with Changing Capacitance?
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How Do You Calculate Young's Modulus from Wire Stretching Data?
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Motion in two dimensions question. At wit's end.
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Rotational kinematics and energy
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