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.
What is the potential difference between two points in a uniform electric field?
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How do I properly convert from km/h to m/s?
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Why Is the Magnetic Field Uniform in a Non-Coaxial Cylindrical Cavity?
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Gaussian cylinder in the finite case
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Newton's Second Law Concerning Net Force
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Cylindrical shell- electric potential problem
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How do I find the spacing(d) of a grating in a diffraction grating experiment.
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Question on Physics problem of time and distance
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Sloshing in a Rectangular Container: Finding Time Period
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Does a magnetic field occupy space?
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Need help calculating friction and normal force for Measuring Friction Lab
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What is the Velocity of the Larger Cube as the Smaller Cube Melts?
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Isothermal Compression and Entropy Change
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Finding velocity as a function of time
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Kirchhoff's Rule and finding current with a system of equations
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Electric Potential of a hollow cylinder
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Orbital angular disp. in 1 day & centrip. force and Acceleration of planets help
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Can a vector be perpendicular to both skew lines?
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Time taken to reach 90% of terminal velocity
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Physics Current Problem (I1,I2,I3)
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Applications of Magnetic Fields
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Forces on symmetrical electrostatic charges
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What is a function that describes motion in a circular path?
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Solving trig problem for trajectory
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What is the pressure at 15 ft underwater?
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Calculating Work on a Stretched Spring
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What is the minimum work required to push a car up an incline with friction?
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Thermodynamics - Calculate the initial temperature of the iron.
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Voltage and Current in RC circuits
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What is the current through Resistor on RC circuit
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A few quick conceptual questions about capacitators and dielectrics
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Find the Voltage in This Circuit
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Work done by damping, harmonic oscillator, help?
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Capacitors - Conservation of Charge vs Conservation of Energy
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The Energy of a Multiparticle System
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Movement of Water - Increasing day length
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Solving Physics Problems: 2.00 kg Box Moving Right
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Moment of inertia for a hollow ball calculation
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A ball tied up at an angular plane: Forces and torque
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Coulomb's Law with 3 Point Charges
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Work Done by Gravity on 265kg Load: 6.24x10^4 J
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Calculating Energy Lost due to Friction
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Electric dipole in uniform electric field
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Theories on Series and Parallel capacitors
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Angular Momentum - Spherical Mass & Radius of Gyration
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Change in Grav PE with the change in origin.
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Adding a wrench to a series circuit ?
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Capacitor Charge within a time period
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Conceptual Question about Power
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Calculating angle with coefficient of static friction value
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Solving Resistance of a Wire: 21V Across 32m, 18m?
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What force opens a folding knife?
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Theories on Series and Parallel Resistors
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Finding largest angle - mechanics
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Change of kinetic energy problem
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Terminal Voltage Formula Doesn't Apply?
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Rocket Acceleration: Linear or Exponential?
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What is the Relationship Between Velocity and Distance for a Sprinter?
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Circuit with 2 Batteries and 6 Resistors
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Finding Constants Using Continuity Conditions
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How Do You Calculate the Mass of Object 2 After a Collision?
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Dimensional analysis and frustum of a cone
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What Are the Dynamics of a Bicycle Wheel with External Forces?
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Calculating Mass in an Elastic Collision
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Finding the Uncertainty of Vy in a Physics Equation
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Rotation at an angle - Tether ball (Finding length)
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Need help with finding positive time for x(t)= cos(wt) + sin(wt) problem
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Free fall with air resistance, must find velocity
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How Does Adding Different Dielectrics Affect a Capacitor's Performance?
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Conservation of Energy with a spring
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Is the Ballistic Pendulum a Conservative Process?
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Gravitational Potential Due to a Thin Rod of Varying Density.
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Conservation of Elastic and Gravitation Energy - 2
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Thermal Physics Problem: Determining Volume & Cp/CV for Ammonia Gas
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Momentum, Friction, and Velocity, OH MY
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Potential Energy between molecules
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Calculating Momentum Change of 70kg Passenger in Car Crash
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Thermodynamics - Please help me to calculate the final gas pressure.
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Calculating the Current in a Two battery Combination Circuit
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Circuit help? with two batteries and resistors
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Cubic equation with two unknown coefficients
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Kinematics Problem and stream of people
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Conservation of Elastic and Gravitational Energy
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What is the Intersection and Plane Determination for Parametric Lines?
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What is the support reaction at E for the 9m length beam?
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How to calculate Laws of Thermal Radiation
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Electrostatic Field Lab Question
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Center of Mass of system of particles
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Magnetic field, energy, and mass
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What is the Charge of the Larger Sphere in Electrostatic Equilibrium?
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Friction between boxes - please check if this is right
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What is the Strength of the Magnetic Field in a Solenoid with Given Parameters?
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Need help calculating angle with coefficient of static friction
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How Do You Create a Line of Worst Fit in Excel?
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Mechanics - work done conservation of energy *Help needed*
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Velocity of electron shot from a solenoid.
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Not sure how to do 2 body problem
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Chaining pressure vessels and outlet temperature
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Calculate Final Position of a Car Using Acceleration on a Level Road
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Optimizing Golf Shot Trajectory for a Hole-in-One
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