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 Much Power Does an Elevator Motor Need to Overcome Friction?
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The gravitational slingshot effect
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Elastic collision with conservation of energy and momentum?
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Textbook with spring sliding, use work-energy thm to solve
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Electron/proton kinetic electric energy
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Calculating Friction Force on a Stationary Dancer on a Drawbridge
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Newton's Second Law for a System of Particles
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Understanding Energy Related Problems in Mechanics
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Moment of Inertia of a windmill or fan
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Magnetic Field of Two Wires where is zero
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What is the total capacitance for the RC circuit lab problem with given data?
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Finding unknown resistance of a resistor using a schematic drawing
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Magnetic field at a point between two current carrying wires
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How Strong is the Magnetic Field Inside a Toroid?
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How Do You Calculate Current and Power in Parallel Resistors?
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Evaporation and condensation problem
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Help finding equation of motion
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Calculating the Capacitance of a Semicircular Dielectric Capacitor
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How Can You Accurately Measure Bendiness in Objects?
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Solving the Swing Tension: A 25kg Child's Story
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Finding stopping distance given coefficient of kinetic friction and mass
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Imprtant phyishcs 1-2 Equations and
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Test Question - Pulleys and Rubberbands
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Resistance for a sphere in a half sphere containing liquid
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A Narrow Escape: Examining a Near-Miss in San Francisco
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Finding the angle of an electric field with respect to an axis
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Solving an Easy Physics Problem: Work Done on a Truck (9120 kg)
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Calculate Horizontal Distance of Rescue Plane Package Drop | Stranded Explorers
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Conservation of Momentum and Mechanical Energy
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Velocity of cart launched by spring
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Conservation of Linear Momentum and kinetic energy of explosion
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Rock Climbing: Work Done by Gravity & Change in GPE
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Calculating Work Done by Gravity on a Sliding Snowboarder | Ramp Angle of 19°
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What Is the Speed of the Current in the River?
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Using watts to help determine velocity?
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How Much Force Did Josie and Charlotte Apply to the Sandbag?
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Understanding Capacitors: Polarization and Charge Distribution
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How Do Two Balls Dropped from a Window Hit the Ground Simultaneously?
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Electric potential and capacitance (semicircle problem)
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Charge on spheres connected by wire
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Speed of Impact of electrons in a television.
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Electric field of a point charge
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How to Determine the Location of a Charge from Electric Field Measurements?
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Calculating Stopping Distance of a Cyclist
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Calculating voltage from multiple point charges
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Solve Millikan Experiment Homework: Calculate Mass of Bearing
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Calculate the Mass of a Ball Bearing (Millikan Experiment)
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Solve Work & KE Problems with Expert Help
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How Far Does the Camera Fall Before the Skydiver Catches It?
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Calculating Trajectory Motion of Ball Hit at 40.0m/s
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Physics3, question on intensity, power, wavelength
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Comet Orbit Around the Sun: Calculating Speed
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Boulder being pulled up by a chain. Find max acceleration
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Physics3 question on light, radiation pressure
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Cannot find the formula for tension
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What Angle Should a Football Kicker Use for Maximum Hang Time on a 65 Yard Kick?
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What is the Tension in a String Holding a Ball in Motion?
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Mastering Physics: Kinetic and Static Friction
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Electron in a parallel plate capacitor
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What Is the Coefficient of Rolling Friction for a Low-Pressure Bicycle Tire?
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Electric Potential: Calculating Midway Point
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Magnetic Energy formulas, units, and examples
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Understanding Divergence: Unit Vectors & Magnitude
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How Do You Effectively Apply Free Body Diagrams in AP Physics Problems?
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Absorbed photons, emmited photons
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Solving Two Problems: 500 kg Cart on a 9 m Loop-the-Loop
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Finding the electic field inside a sphere
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Solving an Equation with Cosine
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Rotational motion and conservation of energy problem
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Determine the effective resistance of the two resistors in series
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Centripetal Force: 80kg Pilot in Jet at 305m/s
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How Does Coulomb's Law Apply to a Charge in the Center of a Square?
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Free body diagram for a bag of coins suspended by an elastic band
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Box on a Toboggan - Newton's Laws
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Angular Acceleration: finding the coefficient of friction
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Solving Uniform Circular Motion: 0.150-kg Ball on a 1.10-m Cord
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How Does Current Affect Magnetic Fields in and Around a Wire?
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How Do Equipotential Contours Indicate Charge and Field Strength?
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Extended Essay, aero engine, help
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Why? (please read, this is the most important question i ever MADE )
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What is the magnetic field around a long, current-carrying wire?
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Using the angle of a pendulum to measure the acceleration of a plane.
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Orbital period questions continued
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Solving Friction up a Slope: Coefficient of Friction
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Need help with a problem(Energy and Momentum)
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Forces experiment. Needing to find vector sum of the tensions in string.
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Finding Velocity as a Function of Time for a Thrown Object at an Angle
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What is the Correct Value of k for a 94.8 nm Photon Emission in Hydrogen?
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Calculating Average Speed for a Trip: A Physics Challenge
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Rocket Performance Homework: Max Velocity & Altitude
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Tension from string upon a rock
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Net Force of Car: Solving for 70kg Driver Deceleration
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Finding the coefficient of friction of a block on a table
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What is the length of the spring
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Last edited by a moderator: May 4, 2017
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What is the Coefficient of Rolling Friction for a Tire Under Low Pressure?
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Gauss's Law with a Cylindrical Shell
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A multi loop curcuit- Resistors in parallel and series
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2 problems conserning magnetic fields and units.
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From Angular Velocity to Angular Acceleration - How?
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