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.
Potential difference in between positive and negative charge
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Small issue regarding the wording of a thermodynamics question
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Fringe Visibility of Sodium Doublet in Michelson interferometer
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How to get the coefficient of kinetic friction?
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Maximum work done by a Carnot engine
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Approximation for a slipped pendulum
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Tension in 4 strings suspending object at 4 different points
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How to get the coefficient of kinetic friction
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Dielectric problem -- two line charges inside a dielectric cylinder
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Conservation of Energy: block on a table
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Conservation of Energy -- Toy car hits and compresses a spring
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Wires in an circuit, different materials, heat
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Calculate the temperature of neutrons emerging from a reactor
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Why is the expectation value of the commutator not zero in method 1?
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Effect of Dielectric Material on Capacitor Voltages in a Circuit
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Area of common surface of two bubbles
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How Much Load Will the Wheel at C Bear in a 3-Axle Trailer?
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Velocity of a cylinder on a horizontal plane
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Newton's laws -- Blocks and pulleys problem with friction....
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Rockets approach: time they meet w.r.t. rocket A?
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Why Do We Double Time in Speed Camera Calculations?
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Initial velocity of ball B hit a free falling ball A
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Eigenfunction energy levels in a harmonic well
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What happens to the charges on the capacitors when a capacitor is disconnected?
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Poynting vector of current carrying wire
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Combined resistance in this circuit
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What is the Suitable Fuse Rating for the Mains Supply in Question 35?
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Pressure Difference: F=10 Tonnes, A=100 sq m - Calculate & Understand
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Ratio of energy densities of black body radiation
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How Is the Equilibrium Temperature Derived in a Coaxial Cylinder Configuration?
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Photo of rotating scale and falling coins
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Single-slit Diffraction Problem
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How Do You Calculate Radiation Dose Through Lead Shielding?
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Return time to its original state of a particle in the double infinite well
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Problem : electric field due to line charge
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How Much Does the Spring Compress When a Man Jumps on a Scale?
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Proof of Wheatstone bridge equation
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Relative velocities in special relativity
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What is the Velocity of Thermal Neutrons at 25 Degrees Celcius?
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Normalization constant for a 3-D wave function
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The Coriolis Force: Where Will It Take You?
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Finding the minimum time for crossing a river
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Solving Linear Motion Problems: Initial Speed, Time, and Height
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How Do You Calculate a Castaway's Final Position Using Vectors?
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Angular momentum due to electromagnetic induction
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How Is the Dielectric Constant Determined for a Rod to Prevent Light Absorption?
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Uniform rotating rod about a point at one end of the rod
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Modified Block Problem -- Block on top and on the side
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Finding the units in an algebraic equation for velocity
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Finding the radius of the sphere
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V(center) of charged metal sphere inside a grounded shell
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Force exerted by a particle in a box on the boundary
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Compton Scattering: Solving for E with $\phi = 1/4\pi$
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Particle in a box quantum mechanics
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Charge density of capacitor plates
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Minimum consumption rate of a heat pump
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Why is F=ma? (Physics homework)
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Calculating Work Done on a Basketball Dropped from 5m
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Deviation in refraction and TIR
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Wavelength of Sound: Solve Using X & Y
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Frequency of a proton moving in a circular orbit
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Dimension of length using h,G,c
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Mechanical problem -- a mass sliding down a curved ramp
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Energy needed to remove both electrons from a He atom
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Standard deviation of V_x of He gas
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De – Broglie wavelength of O_2
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Finding the Maximum Mass Ratio for Elastic Collisions: A Quick Homework Problem
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Gravitational Effects on a Pendulum in a Moving Ship
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Magnetic field experiment confusion with error calculations
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Find speed given mass, starting speed and time
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A block is released from rest, determine its velocity
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First post: work and energy problem
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Thermal expansion of bimetallic strip
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Velocity and Distance involving springs
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Vector Subtract Given Magnitude
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Image distance from the hemisphere lens
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Dispersion relation for a surface wave of a pool of water
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The electron momentum is E/c, so that its speed is....
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The solution of a problem regarding center of mass
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Two spheres of are dropped to ground while in contact.
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B on center of 2 infinite wires with semi - circular end
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Two particles moving in a central potential
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Laplacian for hyperbolic plates
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Energy of System: Which Statement is Always Correct?
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What is the formula for calculating fringe width in an interference pattern?
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Point charge outside a grounded conducting sphere
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Doppler effect: calculate speed of a moving star
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Adiabatic Temperature Change in Rising Air
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Surface made by balls thrown in different directions
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Heat equation and stainless-steel wire
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How Far Does a Rocket Travel in 10 Seconds at 3600mph?
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Why Doesn't My Power Calculation Match Real-World Scenarios?
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Power given to particle by centripetal forces
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Coulomb force and charge equilibrium on the xy-plane
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Two blocks on a surface and a pulley
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Calculate the intensity of the Earth's magnetic field
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Magnetic field in a closed path
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Contour integral and problem of Quantum mechanics (Griffiths)
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Calculating water pressure in a horizontal pipe
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Change in the energy of photon due to recoil of the nucleus
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