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 displacement of a 3.0 kg block sliding down an inclined plane?
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Electric current flowing in a power transmission line
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A Nuclear Reaction: Determining the velocity of neutrons
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Effect of the load sequence on the deformation of a spring
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Rotational Mechanics Homework: Equations & Solution for Part 1 Work
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What's the coefficient of kinetic friction?
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Projectile motion - determining initial velocity and angle
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Confusion in the derivation of the force on a magnetic dipole
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How Do Magnetic Fields Influence Current-Carrying Wires?
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Diffraction Grating Vs Double-Slit: Small angle Approx.
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What is the torque exerted by the flywheel on the machine?
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Polarization of Light: Polarizer
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Determine the x- and y-coordinates of the trapezoidal shape.
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Water reach (Hose without and with a nozzle)
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Minimum force before a system of two blocks will move
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Short conceptual question on Work, Energy and Forces
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Pressure Half-Life: 2L vs. 5L Containers
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Finding the Resistance of a Fault in a Pair of Transmission Lines
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Curious about Work done by Gravitational force
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Nullifying Lorentz Force on Proton Moving in Parallel Direction
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Why Do Moments Balance in a Faraday Disk but Not the Forces?
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Torque Problem: Finding the weight of a horizontal bar
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Rotational Kinetic energy of bar, and new kinetic energy
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Pully System on an Inclined Plane: Understanding Direction of Acceleration
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Finding the horizontal force that the road applies to the car
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What is the magnitude of the acceleration of cylinder's com?
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Find the speed of an object using work and energy
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Calculate the work done moving a crate
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∇ x E in Cylindrical Cordinates
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Calculatethe direction of a wave
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Finding the mass of a block attached to a spring
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What are the equations for circular motion on a Ferris wheel with R2D2?
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Equation of an oscillating system without any starting values
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Elastic collision with particles, find the kinetic energy
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What Determines the Force Between Links in a Chain Under Acceleration?
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Critical angle: find the depth of the fish looking up
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Finding tension of a string spinning horizontally
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Problem with Coriolis Acceleration
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What causes electric field/ magnetic field?
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Position wave function of energy eigenstates in 1D box
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Finding Momentum when giving the mass and height
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Finding the radius in the universal gravity equation
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Could I get a second pair of eyes on this?
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How does the position of a force affect a spinning wheel
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Free body diagram on a block pushed against a ceiling
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Integral of Acceleration with respect to time
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What Was the Initial Energy of a Positron Entering a Plastic Slab?
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Rotational Motion: Average angular acceleration of a CD
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Inelastic Collision: Finding Initial Angle
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How Do Friction and Force Affect the Angular Velocity of Connected Wheels?
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What's the acceleration of the blocks and the tension?
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Standing wave transverse motion and amplitude
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Pressure at the bottom of a container containing two liquids
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PV diagram/ which labeled process has no temperature?
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Determine the distance the object travels
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Inelastic collision of ball and rod - rotation problem
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How do masses affect the acceleration of the center of mass?
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How Do You Solve a Projectile Motion Problem?
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The right hand rule in a magnetic field
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Finding mass of unbalanced meter stick from torque
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Rotational moment of inertia for 3 balls on a pipe
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Motion when Kinetic Friction is more than Static Friction
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Rotational inertia hoop around a central axis
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Derivation of Relativisitic Doppler effect with angle
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Solving for Rotation in a Force & Torque Equation
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Pulley System Part c: Homework Statement & Relevant Equation
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Angular momentum of particle about the origin
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Ring and solid sphere rolling down an incline - rotation problem
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Elevator Motion and Bathroom Scale Readings
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Relevant equations for an airplane landing
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Correct statement about coherent sources and interference
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Equation to represent the GPE of a pirate ship ride?
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Electricity and magnetism (Gauss' law)
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Finding the minimum distance between two cars
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How Can Energy Change Instantaneously in a Coupled Circuit?
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Is the Block Moving Horizontally or Perpendicularly on the Inclined Plane?
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Waves on a String -- Minimizing reflections from the far end (ring on a bar)
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What Will Be the Velocity of the Center of Mass of the Raft?
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How Do I Solve This Combination Circuit?
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Position of particle in inertial reference frame
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Calculating Elevator Acceleration: Solve for F=ma
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How Do You Calculate Average Speed with Variable Acceleration?
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Centripetal Lab- finding the mass from the slope
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A ferry boat is crossing a river that is 8.5 x 10^2 m wide.
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What would happen to the charge and capacitance?
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Calculate the wavelength when electron transits.
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Solving a Disappearing Voltage Puzzle: The Ball Cyclotron Project
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Calculate the displacement? (Projectile motion problem)
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Uniform Circular Motion question
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Conditions for conservation of momentum
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Brightness change with temperature
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Where on the hill does the projectile land?
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What is the direction of the velocity/ elastic collisions.
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Small oscillation frequency of rod and disk pendulum
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Electricity and magnetism: Electric Field for Two Long Charged Lines
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Terminal velocity of a skier using a Momentum Balance
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How far will the girl run before catching the ball?
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Potential energy of a block moving up and down an incline.
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Energy and root mean square velocity question
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Capillary Tube Behavior in a Gravityless Environment
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