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.
How can I find the force needed for constant velocity with known variables?
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Find a vector perpendicular to another vector
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Is my forces sketch correct for the engine experiment on a plane?
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How Do You Calculate the Resultant Force from Concurrent Coplanar Forces?
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'Reversing' a moments calculation
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Electric Forces between charges
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Find the Mass of Sun if given are T and d?
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Scaling law for static buoyancy
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What is the drag force on a car traveling at different speeds?
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Angular momentum theory problem
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Sound diminishes from x to y over what distance?
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A stone is projected vertically upwards
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Projectile, finding landing distance - given landing angle
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How Does Changing Mass Density Affect Harmonics in Standing Waves?
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What is the magnitude of the resultant of the following vectors?
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Projectile and relative motion help
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Force between two charged bodies
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How can I effectively solve statics problems in 3-D?
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Coulombic fundamental force to the Gravitational fundamental force
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Deceleration and Forces in a Drop-Forge Hammer
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Calculating the Force Between Two Electrons at a Distance of 2 Angstroms
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Mag field in a current carrying square
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How Can Opposite Deflections in a Magnetic Field Be Explained?
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What is the acceleration of a block being pulled up a slope by a 140 N force?
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Projectile, Finding Initial Velocity
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What is the coefficient of friction between the plane and the block?
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Wire radius from interference fringes
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Solve Refraction Problem: Archimedes' Gold Crown
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How Do You Calculate the Maximum Kinetic Energy of a Dropped Sign?
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Power & Kinetic Energy Needed to Pull Wagon at 25km/hr
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Circular Motion and Universal Law of Gravitation Homework help
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Solving Catapult Problem: Launch Speed, Time in Air, and Impact Speed
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How Far Is the Farther Slit from the Nearer Slit in a Double Slit Experiment?
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Calculating Pressure from Falling Sand Shower
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What Determines the Point of Minimum Loudness in Speaker Interference?
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How to Calculate Magnetic Field for Uniform Surface Current on XOY Plane?
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Point charge and electric flux
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What are the correct conclusions for the change in entropy in this reaction?
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Observational error, identical measurement results
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PLEASE HELP Question regarding uncertainty principle
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Calculate Work of Expansion in Chemical Reaction | 100 cm2 Container
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Find Acceleration of Objects with Kinetic Friction
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A really tough physics math problem that I am in major need of help with
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Calculating the Hang Time of a Kicked Football
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What is the Phase Difference Between Reflected Waves in a Thin Film of Water?
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Vector and scalar magnitude problem
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Calculating Electric Flux through a Cube with a Moving Charge
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MCAT Work and Friction Problem
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What is the change in energy required for the Earth to escape the Sun's orbit?
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Force of an elevator on person riding it
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Solving the Violin String Problem: Frequency, Wave, and Tension
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Finding speed of a string given length, mass, and velocity of wave
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Finding the Coefficient of Friction(due tommorow, )
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Simple Ray Optics Problem-Check my answer?
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Calculating Resonance Frequency and Amplitude in RLC Circuits
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Find the mean time between collisions in a wire
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Why are electric field lines also referred to as "lines of force"?
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Trig Substitution for ∫ x/(x^2 + x+ 1)dx: Simplifying Complex Integrals
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Gauss's Law - A hollow sphere with inner and outer radius
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On Planet X, a 70 kg object can be lifted by a force of 400 N
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Can Anyone Help Review My Half-Wave Rectifier Calculations?
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Maximum speed of point on a string (Waves)
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His Kinetic Energy to Kinetic energy of the snow?
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Clarifying Sound Intensity and Frequency
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Electric Fields Lines of a pair of Finite Parallel Plates
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Calculate Horsepower for Pumping Water from 50m Depth at 10m/s Flow Rate
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Floating Block: Period of oscillations
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Electromagnetic induction problem
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Relativistic energy/momentum, massless particles
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Airplane Traveling East against Wind
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Electric Current - Splitting & Resistance Explained
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Energy of Photons & Mechanical/Light Waves: Amplitude & Frequency
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Understanding Maxium Displacement Problem in Serway 8th Edition Chapter 3
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Angle of Projection from Height and Range
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Thermal Conductivity Ice Question
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Block sliding down incline shaped as circle
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How much energy is transferred to the water as heat?
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Current in Induction: Calculating Mutual Induction
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Hello, I am in desperate need to solve this problem involving different tensions
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How to Calculate Coupling Coefficient Without Mutual Inductance?
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What is the speed of the rock right before it hits the ground?
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Electric/Gravitational Forces
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How Do You Calculate Cylinder Rotation Using Laser Reflection?
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How Does Angle Affect Block Acceleration?
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Circular Motion and Universal Law of Gravitation Solutions Check Requested
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Calculating uncertainty in data.
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Calculating Forces and Acceleration Between Charged Particles
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Please read if you uses Physics for Engineers by Ohanian/Markert
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How to find distance with the given information?
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TWO Point Charges on the x-axis and an electric field graph
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Adiabatic, Ideal gas, changing heat capacity, work calculation
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Gauss's Law - Cube with point charge at centre
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A man strikes a 460. Hz tuning fork and moves away from you
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How Do You Determine the Phase of Waves from a Diagram?
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Finding the First Three Terms of exp(z sin z) Taylor Series
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Change in elect. PE given work, KE, charge
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How Does Ampere's Law Treat External Currents in Magnetic Field Calculations?
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Calculating Curie Constant for Iron Ammonium Alum using Curie's Law
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How Does SUVAT Calculate Displacement and Maximum Height of a Thrown Ball?
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Exploring the Refractive Properties of an Oil Slick
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