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 Specific Heat Ratio for a Helium and Nitrogen Gas Mix?
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Find the direction of a blob of clay after impact?
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Diffraction Grating - Calculating Ruling Width
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Solving Squid Propulsion with Momentum Conservation Equation
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How to linearise translated and dilated surd functions?
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Normal force between ball and cone?
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Spring SHM Homework: Solving for Displacement of a Suspended Point Mass
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Find height of ball rotating in cone without falling down?
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How to find period of a SHM concerning a cube and spring?
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Find the transient current in this circuit
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Four Bar Linkage Mechanism - Space Diargram
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Homework Help: Find the Electric Flux Through a Hole In a Sphere
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Moment of inertia of a system of masses
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Determine the work done by the force due to gravity
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Do the rail cars move on a 0.499% grade without brakes or external force?
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Finding the electric field at point - Can someone check my work?
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Pumping water upwards in a column
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Using Pressure and Temperature differences to find height
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Find the speed of a satellite at a distance R from Earth
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Thermal expansion of a copper pipe
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Deriving the Lens Maker formula of a plano-convex lens using Fermat's Principle
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Moment of inertia of a meter stick
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How high was the package above the ground when it was thrown
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Maximum electric field from magnetic field
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Heat and work when temperature increases by 1 degree
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Perturbation of a Magnetic Field
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Direction of electromagnetic field
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How Do You Calculate Proton Beam Energy in a Lab Frame?
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What happened to the negative sign?
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Torque lost using Newton's law of viscosity
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Magnitude of the total momentum of both blocks
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Circular motion - ball in a loop
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Why Was the Acceleration Positive in Circular Motion?
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Find the equation y(x) from y(t) & x(t) then find theta max
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Ball suspended by a pulley: oscillation
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Maximum amount of energy the neutron can lose
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Calculating Motion of a Test Balloon on a Methane Planet
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Why Is Energy Conservation Not Valid in Moving Frames?
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Possible error in Marion and Thornton's Classical Dynamics?
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Impulse and momentum problem pool balls
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Bent rod rotating in a magnetic field
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What is the direction of the impulse in this problem?
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Must we always use absolute value for lens magnification?
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Finding the gas based off of mass
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Moment Arm: Determine Torque Vector & Qty
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Charged particle motion in a magnetic feild
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Resultant force of spring at the instant of release?
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Frequency at which no destructive interference occurs
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Uniform rod pivoting and block/mass energy problem
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Bird & Fish Refraction Homework | See How Many Images
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Number of Images Formed from Reflection & Refraction
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Laser safety / measuring errors question
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Which Point Has a 0 Reference Potential in a Circuit with Two Capacitors?
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Calculating accelerations in Induced Electric Fields
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Resistance, current and current density
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How Do You Solve a 2D Elastic Collision Problem with Angle Relationships?
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How Do You Calculate Power from Torque and Angular Velocity?
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Find B and H everywhere for a magnetized infinite cylinder
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Finding the torque needed to accelerate a wheel
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How can I plot the electric field vs position for two charges?
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Electron in a Quantum State: Finding Eigenvectors and Eigenvalues
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Where are these directions coming from? (Electric Field)
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Time constant of an inductor coil
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Average Momentum: 1552.795 kg m/s
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Frequency of a wave at resonance
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Reviewing Kinematics for AP Physics Exams: When to Subtract Gravity?
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Sound wave Interference from Two Speakers
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An Electromagnetic wave goes from air into a medium....
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Calculating the Feeding Rate of Supermassive Black Holes to Power Quasars
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Magnetic field in the gap of a tapered torus
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Superposition: Adding two waves together -- amplitude help
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Position of the front of an asteroid using special relativity
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When will the bolt pass the elevator floor?
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Calculating Resistance of Coaxial Cable with Isolator
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Emf in a circuit (multiple choice question)
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What Is the Coefficient of Kinetic Friction Between the Ramp and the Crate?
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Uniform circular motion question
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Calculating EMF and Load Resistance for a Motor
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Is There a Displacement Current in a Wire with Increasing Current?
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Finding the Magnetic Field of a Point Charge Using Biot-Savart Law
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Direction of magnetic field problem (Right Hand Rule)
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What is the effect of a shunt on the sensitivity of a moving coil galvanometer?
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Second Law of Thermodynamics - Radiation
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Predicting a decrease in fringe distance (equations)
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RC Circuit with parallel resistor
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But is it the same for AC circuits?
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Liquidification of Helium under constant Enthelphy Condition
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Using the steady flow energy equation, find the power required
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How is the emf greater than 9 V in this scenario?
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Conservation of energy (Waterfall)
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What is the formula for calculating force using a spring balance?
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Equipotential surface and electric field
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Finding the coefficient of restitution
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Force Acting on Hinge: 2744 N Torque on Beam Homework: Find Force on Hinge
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Statics free body diagram (frames and machines)
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What is the diameter of the cylindrical rod
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Mechanical energy lost when child jumps onto merry-go-round
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Calculating flux with a magnet and a coil
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What is the specific heat of the metal in this specific heat problem?
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Reflection and Refraction formula help
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