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 to Calculate Velocity and Acceleration in Simple Harmonic Motion?
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What is the electric potential midway between the two charges?
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Can Someone Solve this Challenging Physics Riddle ?
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Is 2.00 g/cm^3 Equal to 2000 kg/m^3?
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Projectile Problem: Find Time of Collision
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Diode paralell with a resistor problem.
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Problem with acceleration and distance
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Understanding Capacitor Energy Equations
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Buoyancy and Spring force problem.
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Change in potential energy across wires differing composition
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How to Write Loop Equations for a Circuit with Multiple Resistors and Batteries
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Fictious force: Cylinder on an Accelerating Plank
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Thermal conductivity conceptual
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Why Does Thermal Conductivity Disparity Matter in Real-World Scenarios?
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Magnitude of electric field in an area of changing magnetic field
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Equation for Non-Constant Acceleration in Position Function
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Balance of the cylinder on the rod
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Calculating Distance and Time for Meeting of Bicycle and Car
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Can the Gauss Law for Gravitation be used to prove the Shell Theorem?
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Capacitors connected in parallel to store a charge of 1.49 C?
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Mechanics - moment, Euler's second law
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Coefficient of Kinetic Friction from M, Angle, Accel.
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What is the charge on the oil drop in Millikan's oil drop experiment?
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Does Resistance Affect Heating Effect in Electrical Circuits?
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Centripetal force with Conservation of Mass
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Why Is the Calculated Force Excessive for Lifting the Barbell?
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Finding the Potential (Kirchoff's Law)
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Work-Energy problem involving pulley
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What is the minimum height for a cart to complete a circular track?
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How to find velocity of a bullet given energy?
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Application of the cross product: max height of z?
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The lines in a grating are uniformly spaced at
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Understanding Charge Distribution in Electrostatic Systems
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Question about solving for Fk with work
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Unknown mass being pushed up ramp until it hits spring
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Net Force Question? Find Formula to Calculate Daughter's Experience
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Physics Relativity/Power Question?
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Solving for distance using only initial velocity and coefficient of friction
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Electric Potential Ranking & E Field Direction: Homework Help
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Understanding Capacitor Voltage in Series Circuits
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Change of flux in an L-R circuit
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Mechanics, energy, acceleration.
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Deceleration of a falling load of a rope
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Vector Addition Homework: Find F2 Magnitude & Direction
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Current induced in a loop of wire by a bar magnet (Conceptual)
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What happens to an accelerated liquid
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Finding the period T for cylinder on spring
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Minimum Minimum Power of a Heat Engine to freeze 50kg water in one hour
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Physics on Coefficient of Friction
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Capacitor Paradox: How Can Voltage Stay Constant When Charge Density Increases?
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Basic Misconception tension in rope and vectors
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Calculating Kinetic and Potential Energy of a Moving Object
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How Much Power Is Dissipated in Each Resistor in a Multiloop Circuit?
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Which Concepts Are Employed in General Relativity Calculations?
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Elastic collision in 2 dimensions
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Average Velocity vs Average Velocity discrepencies?
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Impulse for a car when it drives in a circle
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Calculating Total Momentum of Trolleys After Explosion
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Inelastic Collision and Rotational Inertia
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Kinetic Energy Ratio/Rotational Equilibrium
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What is the time taken for a flag pole to fall over and hit the ground?
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Find Instantaneous Center of Rotation for Impulse on a Rod
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Time it takes for a rocket to reach maximum acceleration
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Is work done by friction the same as thermal energy?
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Box on a sphere is nudged- when does it fall off?
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Three approaches to magnitude of average velocity
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Calculating Motion of a Mass Attached to a Spring on an Inclined Plane
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Solving for Time When a Ball is Dropped 85 Feet
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How do you find time given vi, acceleration, and displacement
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Position and acceleration vector - parallel and perpendicular
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Determine the time required for a missile to reach its maximum altitude of 21 km
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Max Speed of 0.20 kg Mass on Rotating Turntable
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What Is the Focal Length and Magnification in Multi-Lens Systems?
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How Does a Motorcycle Exert Force Backward to Accelerate?
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Two boxes connected by strings at an angle
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How to Calculate Velocity Relative to Air: Explained with Examples
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Is the Quadratic Formula the Key to Solving for Time in a Physics Equation?
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I must be wrong, instantaneous speed-Conceptual ?
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Wave on a string general theory
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Convert 17,660 ft/min to mi/hr: Math Error?
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Radioactvity - Specimen CCEA papers
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Eastward Velocity, But A Westward Acceleration?
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Calculating Acceleration of a Mass in 2D Plane
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Center of Mass/Moment of Inertia Question
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Surface Charge Density of a Neutral Conducting Cube
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Calculating Percent of Kinetic Energy Lost
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Solve Tension on Cable Homework: Find T for Elevator Mass 1320 kg
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Normal force always point perpendicular to the plane?
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Motion, Power, Energy Questions
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Can the Period of a Damped Oscillator Be Detected Accurately?
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Calculating Young's Modulus for a Rod Using Pressure and Diameter Measurements
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Why Capacitors Store Half The Charge They Are Given
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How Does Lens Focal Length Affect Image Size on a Wall?
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Finding the Right String Length for a Dropping Mass
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Calculate acceleration of gravity using chi-square
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Forces, vectors and acceleration
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Balance of a car on an inclined plane
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Gauss's Law - Insulating Material
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Why Does the Block Rise to a Different Height After Being Struck by a Bullet?
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Voltage Drop over Constant Current Circuit
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