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.
Find the net outward flux through the surface and the charge density
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Help Needed: Deriving Formula for Computer Undergrad's Final Project
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How would one estimate the rotation period of a star from its spectrum
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Determine Joule-Kelvin coefficient for gas given equations of state
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Calculating Properties with ##S##, ##V##, and ##N##
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Problem with units? (trying to solve a normalized function)
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Two Stage Amplifier -- Find the Input Resistance
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Derive the period of a Ball rolling in a Bowl
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Dimension of Eigenspace of A and A^T
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Why Can't Current Flow Between Two Same Voltage Nodes?
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Analyzing an Angular Impulse Problem
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Induction in electrostatic equilibrium conductor
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How Does Increasing Frequency Affect Current, Voltage, and Impedance (Z)?
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How to get gravitational force on a gaseous particle?
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Nuclear Physics help please (alpha decay of a Po-216 atom)
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How to Find the Magnetic Field (B) in a Zeeman Effect
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Calculate Input Resistance: Formula & Tips
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Is Your Calculation of Simple Harmonic Motion Accurate?
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Solve T(y)-T(y+dy)=ug(dy) | Easier Method?
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Is the magnetic flux density B constant?
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Compare the shadows cast by a pole in the river and a pole on the shore
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Why do particles in a falling coach get closer together?
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Deriving a formula for Kinetic Energy
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Dynamics motion problem with a disk in contact with a bar
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Ampere's Law for a toroid (finding relative permeability of iron)
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To find the center of gravity of a particular quadrilateral
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Unraveling the Enigma: Understanding the Equation
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Rate of energy dissipated by a power transmission line
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The Direction and magnitude of current in the inductor
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Determining the torque and angular momentum of a bullet due to gravity
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The maximum efficiency of two continuous processes
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Solving an Electrical Problem: Why is the Answer Not 2s?
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How to solve mass-spring system when affected by torque in a pulley?
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LC circuit -- Calculate the work done
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Do All Images with Applied Current Show the Normal Zeeman Effect?
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To find induced charges on the edges of a right pyramid
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Comparing DC to AC: Is A Always Correct?
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Verifying Force Calculation Methods: 1/2 mv^2 vs. m*a
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How to calculate initial pressure and temperature - adiabatic process
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Does the derivative of a P(V) eqn give the eqn for change in Pressure?
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Thermodynamics problem (ideal gas law, kinetic theory, processes, etc.)
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Where Did I Go Wrong in Calculating Net Current Through a Circle?
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Is My Thinking Reasonable: A's Impact on Oscillator Motion
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Fish Reflection: Analyzing Light's Interactions with Water
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Work Done by Elevator Cable in Sample Problem 7-6
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Terminal angular velocity of Disc in magnetic field
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Solving Part e of the Electron Beam Problem
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Supporting a trapezoid between two wedges
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What Factors Influence the Minimum Acceleration in Physics?
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Calculating Volume & Work: V1, V2, W
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Calculating Magnitude Difference: Is it Right?
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How to determine angular velocity about a certain axis?
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Calculate change in entropy per minute.
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Find potential energy using time-independent Schrodinger's equation
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Elastic collision of particle and rotating disc
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Solving Destructive Interference: Angle vs Wavelength
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Confirming Conservation of Kinetic Energy: An Explanation
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Projectile motion with (constant) wind velocity
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Should the Answer Be B? | Reasoning Explained
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Find ##E_0## and ##k## for ##E= E_0 \sin(k r -\omega t)## using Gauss
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Calculating Hot Air Balloon Volume & Lift
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Angular Frequency of a two-object system
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Calculate the block mass in an equilibrium system with two supports
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How do I find average kinetic energy if I don't have mass of the gas?
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What are the forces exerted by a wall on a hinged rod?
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Inversely proportional or a linear relationship?
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Find the time required for the current to grow to 2.5A....
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What is the intersection point of two objects on a position vs time graph?
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To find the tipping point of a lamina
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How to solve a differential equation for a mass-spring oscillator?
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Electric flux through a square lamina
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Solving the wave equation for standing wave normal modes
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Find electric field separating two charged masses suspended on strings
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Deriving length contraction using spacetime
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Time period of 2 disks connected by a spring
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Finding Magnetic Field of a Toroid with Two Circuits
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Ideal Vs Real Mass Pulley system
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What is the angular frequency of oscillation?
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Partial derivatives of enthelpy and Maxwell relations
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Moments question -- Two workers moving a scaffolding
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Finding (C): Halfway Between Equilibrium and End Point
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To find the centre of gravity of a lamina
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Distance traveled by the object in n-th second
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Getting Started: Overcoming the Blank Page
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Calculate the impedance in this RC circuit
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Finding the Velocity of a Projectile knowing only Launch Angle and Flight Time
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Flux Through a Gaussian Surface
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What is the relationship between a rocket and Inverted Pendulum?
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Oscillating spring experiment uncertainty
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How Are Velocity and Angle Calculated When Crossing a River?
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Applying D'Alembert's principle to a bead on an elliptical hoop
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Electromagnetics: find D,E,P between two parallel conducting plates
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Magnetic energy inside a coaxial cable
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2 Carts on a Track Compressed by a Spring -- What are their Velocities?
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Calculate the charge to mass ratio in this mass spectrometer problem
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The body slides off an inclined plane
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Understanding the Net Force on a Snorkeler's Eardrum
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Spring launches a block up a ramp -- How far does it go?
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Rocket problem -- separated fuel tank in free fall
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Lorentz Velocity Addition Problem
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