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.
Finding the Minimum Current for Magnetic Force to Equal Wire Weight
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Solve for n: 119 = n^2 - 3n / 2
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I'm stuck Not sure where to go. Help
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Please take a look at that problem
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Resistance and ohm's law with light bulb
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Linear acceleration and a grinding wheel
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Solving Simple Harmonics: Return Time After Collision
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Thermodynamics/Entropy Question
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Heat and adiabatic processes perhaps
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Calculating Tension of Rope with Parallel Forces
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How Far Must an Astronaut Be Above Earth to Weigh 0.01 of His Earth Weight?
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What is the speed of the spring gun after the ball comes to rest
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Net Gravitational Force Problem
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Wavelength - how far away did earthquake occur
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me with these Vector problems?
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Rotational Kinematics of a Particle
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Kinetic Energy/Velocity problem (not sure what I'm doing wrong)
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Vector Problems: Finding Resultant Forces, Velocities & Components
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Calculating Rotational Inertia: Two Masses and Two Rods
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Drawing a Free Body Diagram for Drainpipe in Forklift
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Kinetic and heat energy problem
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Three Difficult Materials Questions (check my answers)
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Solving a Simple Kinematics Problem: When Will Three Turtles Collide?
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Zero Launch Angle: Vox and Angle
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Collision and conservation of P
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Hanging Cable (Projectile Motion?)
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Need help with Physics word problem dealing with Momentum
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Voltage drops - i don't understand
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How Is Work Done by Gas Calculated in a Thermodynamic System?
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Mass pushed by horizontal force at constant speed on an incline
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Can Aluminum at 90 Degrees Celsius Melt 10 Grams of Ice?
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Calculating Buoyancy in Oil/Water: Solving for Height of Cylinder
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What is the Force on a Wall from a Horizontal Water Jet?
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Why is current not considered to be a vector?
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Calculating Recoil Velocity: Female Character in Diamonds Are Forever
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What is the length of the vibrating section of the violin string?
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What Bad Physics and Laws Are Broken in Jurassic Park III?
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Calculating the Sun's Power Output
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Solving Solar Energy Problem: Collector Area Needed
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Special Relativity and Relative motion
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Friction Problem: Find Time to Rest w/ Force of 5.0 N
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Simple Harmonics - Kind of wierd
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Locating Object and Image with Converging Lens
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What Happens to Amplitude When One of Two Glued Balls on a Spring Detaches?
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Linear Velocity at Top (Rotational Kinematics)
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People run faster than they walk
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What is the ratio of the amplitudes of the two waves?
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Help with free body diagram for circular motion
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Sweaty Biker and Energy Consumption
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Find Average Acceleration of a Turning Car in 2.0s | Step-by-Step Guide
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How Does Special Relativity Explain the Michelson-Morley Experiment Results?
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How Far Must a Small Piston Be Pushed to Lift a Larger One by 20 cm?
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What Makes a Parachute Safe in Physics?
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Determining length of highway deceleration ramp, with friction
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Universal Gravitation Ice Rink Problem
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Solve a Quick Math Question: How Many Sides in a Polygon w/ 119 Diagonals?
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Satellite Problem: 2 Difficulties of Effective Communic.
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AP Physics Free-Response Practice Question #2
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Force between two parallel wires
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AP Physics Free-Response Practice Question
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How Can Torque Determine the Weight of an Unknown Object?
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Determination of planck's constant
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How much energy will be released when the meteor hits Jupiter?
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How Can You Design an FM Radio Receiver to Favor One Station Over Another?
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How Do You Solve Complex Force and Tension Problems in Physics?
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The Final Temperature and Remaining Ice in a Calorimetry Experiment
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How Do You Calculate the Line Integral of a Magnetic Field Between Two Points?
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A Refraction of Light Question : Why Does Diamond Sparkle More? (Ans. )
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Levitating a rod - magnetic field/forces
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Solving Nylon Rope Fracture Problem Up to 25 kg Lift Height
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Torque - Finding the unknown weight
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Decibels and intensity of police car siren
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Spring constant and oscillation frequency
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What is the Initial Angular Acceleration of a Disk Released from Rest?
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Current Through First Resistor in a Parallel Circuit
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Help find work done associated with electric potential
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How many revolutions does a washing machine tub make during a spin cycle?
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What Is the Average Speed of a Motorist Traveling Different Speeds?
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Calculate Intensity of Sound Wave at Cliff from Radio Source
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A few problems (forces, energy, gravitation)
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What is the maximum angle for a ladder to lean against a wall without slipping?
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Constructive/Destructive Stereo Interference
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Equillibrium ladder on a wall problem
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Finding the Minimum and Maximum Speed on a Sloped Surface
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Direction of the frictional force
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Calculating Spring Constant for SHM with Bullet Impact
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Transverse Wave Homework Problem
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What is the relationship between A_{c} and A_{s} in simple harmonic motion?
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How Does Momentum Affect Motion in Different Scenarios?
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Difference between potential energy on Earth and in orbit
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Spring Problem and average force
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What Are the Outcomes of a Tennis Ball and Basketball Elastic Collision?
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Period/Frequency of a Rotational Object
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Solve Circuit: Find ΔQ for Switch T Turned Off
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Calculating Crane Power with Constant Velocity: Two Homework Problems
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Sun and Earth Mass, Distance, and Center-of-Mass Problem: Exam Sample
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Find Fundamental Frequency & Tension of Oscillating Wire in Tube
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What happens when a bug lands on a spinning sphere?
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Potential Energy in to Kinetic Experiment
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What is the Next Step in Calculating Wavelength for Singly Ionized Helium?
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