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.
Time taken to start pure rolling
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Trouble Understanding Hinge Axes: Ax ≠ Bx?
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Thermodynamics - Latent Heat Problem (finding mass)
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Newton's third law -- I have trouble with some real-life examples
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Forces when car wheels "lay rubber"
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Confused about applying the Right Hand Rule (RHR)
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A problem involving thin film interference
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Shear lines from a FBD with distributed forces
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Ball rolling down a slope problem: Find an expression for time taken
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Calculating final rotational speed from angular velocity
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Force and pressure -- Pulling apart two hemispheres with low pressure inside
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Calculating Inlet and Outlet Times: c=451.8, u=135.5
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Preventing a block from sliding down a frictionless inclined plane
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How to calculate distance traveled if you know a(v) graph equation?
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Finding time taken to stop a skater given mass, velocity and force
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Find largest potential energy difference between 2 loop orientations
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Optimal Solution for Avoiding Cable Slip from Groove
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Simple Ramp motion problem, but going full vector mode
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Work done by cord on the pulley
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Visualizing Series Bandpass Filters: A Graphical Approach
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Find the inertia of a sphere radius R with rotating axis through the center
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Finding the angle at the apex of a rhomb with incoming linear wave
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Conservation of energy -- Using a spring to launch a ball up an incline
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Euler-Lagrange equation: pulley system
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Some confusion about work done to separate charges
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Find the acceleration of the masses
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Special Relativity Muon problem
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Earth's magnetic force on a proton
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Question about radioactive decay
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Find the center of mass of a uniform semicircular plate of radius R
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Find the Potential energy of a system of charges
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Connection between Pressure, Surface Density and Height?
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Question about hollow matrix and diagonalization
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Find the current through a complicated circuit
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Adiabatic expansion with temperature-dependent gamma
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Fourier series, periodic function for a string free at each end
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How Do You Calculate the Mass of the Moon Using Surface Gravity?
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Finding Potential inside a hollow sphere
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Find the resistance of electrons in nanoshells
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Calculating Maximum Height: Confusion & Solutions
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Conservation of Energy for satellite in an elliptic orbit
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Determine how much energy the alpha particle carries
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Momentum Conservation: Bullet enters a block
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Solving Inequalities: Need Help with Part (a)?
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How do I calculate the work done by a force field using the dot product?
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Stable equilibrium and non stable equilibrium question in electrostatics
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HW Question regarding double-slit interference
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What is the resistivity of a wire when voltage increases?
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Find the drift speed of electrons in a wire
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Thermodynamic and mechanical work
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Heat Engine Efficiency: How Ice Water Affects Performance
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Understanding Velocity Transformation
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Roller coaster and centripetal acceleration
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What Is the Best Method to Calculate Gas Flow Through an Orifice?
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How Does Snell's Law Affect Wavelength?
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Potential difference of a ring rolling in magnetic field
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Velocity of two masses due to electric potential energy
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Tension in string pulling two carts
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What is the electric field inside an infinite cylinder?
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Calculating Magnetic Energy Between Plates
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Calculating Magnetic Induction of Moving Planar Condensator
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Question About an F=ma Problem with a small ball impacting a ramp
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Electric Field Inside a Gaussian Surface with Point Charge q
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Physics homework help needed -- A mass sliding down a ramp with friction
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Trouble with a Rocket Propulsion question (Variable Mass & Momentum)
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Specific heat in for the Otto cycle
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Surface charge density of a plane
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The occupation probabilities of electrons in different states
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Friction on a box in the bed of a pickup truck accelerating up an incline
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Voltage Confusion: What Am I Missing?
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Forces applied to a block on a ramp
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How Does Projectile Angle Affect Asymptotic Behavior in Physics Graphs?
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Forces on two different blocks with two pulleys
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Average speed question about a hovercraft
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Pulling down on the string connected to a whirling block on a table
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Calculating Electric Field at Point P(0,0'03,0'04)
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Pulley system to balance the weight of a person
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Potential on the axis of a uniformly charged ring
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Flux of the electric field that crosses the faces of a cube
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Ampere's Law -- What is the meaning behind each part?
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Boundary Conditions for an infinite rectangular pipe
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Why is my calculation for a rocket's maximum range incorrect?
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Doubts about the electric field created by a ring
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Minimum seperation of two electrons moving toward each other
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Force on a particle of a linear charge distribution
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Two conducting spheres a distance d away with charges +q and -q
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Solving Kirchoff's Laws: Are My Answers Correct?
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Min Plane Height to Drop Bomb in Hollow: 335m
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Making a Velocity vs Time graph for a bullet
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Sliding resistance of eccentrically loaded block
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Gauss' Law applied to this Charged Spherical Shell with a small hole
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Question about elastic limit and yield point
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[Ohm's law] Why does the answer key use the time after 5 seconds?
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Conservation of momentum of spacecraft and asteroid
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Acceleration of Mass m: Problem Solving
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Mechanism of mechanical transverse wave in solids
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Find the acceleration in circular motion
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Method of images between parallel plate capacitor
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A mass sliding down the inclined plane -- Will it stop?
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Method of Images for a single point charge in a capacitor
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