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 Work Is Involved in Climbing Stairs for a 60kg Person?
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Speed parameter β and Lorentz factor γ
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How is EMF induced in a pendulum under the influence of Earth's magnetic field?
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Max Velocity of Wedge: When Block Reaches Height h
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Help with free body diagram for a pendulum
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Coefficient of friction of a flat belt and of a vee belt
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Find the Magnitude of the Magnetic Field in a moving loop
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Kinematics One Dimensional help
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Escape Velocity, with varying acceleration as a(y)
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Finding Magnetic Field from a Box
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Conservation of momentum and concept of center of mass.
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Which Equation Best Describes the Block's Height After a Bullet Impact?
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When will the fishing boat and the speedboat meet?
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What is the Binding Energy of an Oxygen Atom Given its Mass Defect?
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Differential equations: applying force to projectile
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Rotational inertia of a rod that has mass on one end
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How Long Does It Take for a Drone to Fall From 400ft?
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Earth's Rotational Velocity: Find Linear Velocity
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Conservation of Angular Momentum in a Rotating System
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Collapsing sun, new average rotation
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Why does Newton's law of gravitation involve a cube on the bottom?
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Spring problem: compressed and pushed down with a velocity
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Is it a good idea to fire a shotgun against a tree?
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Projectiles and Newtons law help?
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How Do Velocity and Acceleration Change Under Unbalanced Forces?
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How Does Charge Distribution Affect Electric Field Direction in a Sphere?
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How Large Must a Helium Balloon Be to Achieve Neutral Buoyancy?
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How Does Cooling Bricks Affect the Entropy Change of the Universe?
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Centripetal Force of swung keys Problem
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What is the direction of rolling friction?
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How to control velocity in a conical pendulum
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Velocity of a planet around the sun
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Hooke's Law: Find x (How much will the spring stretch)?
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Tangental Velocity and Bicycle Wheel Radii
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Find the equivalent resistance (Req) of the simple circuit.
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How do I determine the resultant vector R from R = A + B ?
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Moment of Inertia for Composite Object
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C is incorrect. Work and Friction: A, B, & D True
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Power Problem regarding elavator
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Magnetic field produced by a current
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Electrostatic Field and Particle Motion: Homework Solution and Explanation
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Work, Force, Energy and power question about moving car.
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Net flux through a cylinder from a point charge
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What are the tensions on two cables holding a girder hanging from a crane?
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How to Obtain a Magnification of -2 from a Convex Lens?
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An electron moving through a uniform magnetic field
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Confusion regarding signs in SHM problem
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Solving Simple Work Problem: 515J
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Introductory problem about force (N)
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Hydrostatics on plane surface (basic fluid mechanic Q)
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Astronomy: Sun azimuth from altitude, hour angle, and declination
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Statistical Physics: Cubic lattice of two molecules
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Angular motion-centrifuge problem .
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Calculating Kinetic Energy of a Rotating Grinding Wheel
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Why Are There Different Results in Young's Double-Slit Experiment Calculations?
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Effusion in Uranium Enrichment: Calculating Concentration and Number of Repeats
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A homemade capacitor question, Vf/2
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A 3500-pF air-gap capacitor question
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Mechanical advantage ideal systems
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What is the normal force on a block at the top of a loop?
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Finding Magnitude Homework: Inequality for Moving Blocks Together
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Circuit analysis complex numbers
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Conservation of Energy for Parallel Wires
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Ping-Pong Ball Submerged in Water and then Released
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De Broglie wavelength of nitrogen molecules
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Equations for total internal reflection
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Find the magnitudes of all of the forces acting on the sled
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Electron revolutions in Bohr model
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My temperature after dropping ice in tea isn't adding up
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How Do You Calculate Tension and Acceleration in a Constrained Pulley System?
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Astronomy: Speed at the edge of the galaxy
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Flux of Circuit made from Metal Bar on Parallel Rails
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Using force vector to integrate work in xy-plane
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Calculate the magnitude of the induced EMF in the loop
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Find angle required for total internal reflection of a beam of light
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Average Dose Rate of 1.11x108 Bq 131I in Thyroid
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Thermodynamics: finding work done
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How do I find the specific heat of a hot object in water?
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Frequency difference to find a 20m whale
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One dimensional Kinematics help
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How much the gas has increased the speed of the plug?
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Thomson and Rutherford's experiments
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Time it takes for electron to travel through a solenoid.
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Plotting Kinetic Energy of Mass Against Time and Distance
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Procedure for an Inclined Plane Lab
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Conservation of momentum question - elastic collisions
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How Are Proton Energies Quantized in a Nano-Scale Box?
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Scale Reading in Elevator: Mass, Acceleration, and Velocity Calculations
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Question about work, energy and the work energy theorem.
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How to know when to relate the tangents (Divide components)
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How Does Energy Transfer Affect Entropy in a Water-Ice System?
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How can the momentum of a thrown rock be calculated with given parameters?
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Calculating Torque around moving Centre of mass
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Calculating Volume Charge Density: Simplified Earth Model
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How Is Heat Calculated in a Diesel Cycle Using Volumes and Temperatures?
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Equilibrium Question with water and ice
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Rutherford scattering - electromagnetic form factor
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Spring mass pulley system frequency equation
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Energy of a Forced, Damped Oscilator
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Rotational motion - finding tangential acceleration
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