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.
Collision, angular momentum and energy
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What was Newton's insight on rotational motion in Principia?
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Plotting a Bessel Function for Diffraction (Fraunhofer)
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Does Summation Over n from -∞ to +∞ in Quantum Mechanics Equal Ψ(x)?
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Correct statement about this motion
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What are the assumptions for solving the charged conducting disk problem?
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Determine the heat capacity at a constant volume for a Van der Waals gas
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Impulse on Rubber and Metal Hammers
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The relationship between friction and mass
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Solving a Closed System w/Conservative Forces: Is E1=E2 Always True?
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Average Translational Kinetic Energy: P & V Given
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Rotation of two cylinders inclined at an angle
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Will the pebble meet with the block according to the given condition?
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Finding the maximum height of a projectile
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What will be the number of collision per second in a unit area?
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12
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Trying to find the equation of position in a circular oscillatory motion
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Tackling a Classical Mechanics Problem at Pisa University
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Refraction through different mediums: calculating multiple angles help
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A block and a disk connected by a rope
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885
Increasing electric potential and electric field
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802
Voltage drops in a series circuit
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3
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Find EMF of ℰ on Wire: Speed v, Force, C, B, m, g, l & a
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A disk on a slippy surface (Rotation and Translation)
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What Is the Stiffness Constant k of the Spring?
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Mechanical advantage of a moving pulley vs an anchored pulley
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What I do not understand about mass spectrometers
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Correct statement about solenoid
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Solving a Damped Movement w/ Mass Spring System: Find K, Acceleration
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What is the relationship between surface area and bulk modulus in a collision?
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What is the relationship between weight and length in a cord and pulley problem?
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How the power of the voltage supply can be calculated?
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What Is the Correct Equation for Equilibrium Temperature of Two Fluids?
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Mass, luminosity and magnitude of a galaxy
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21
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What is the Differential Equation for Airflow in a Balloon?
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Calculating the elastic potential energy from a force-extension investigation
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Does a Capacitor Have a Magnetic Field?
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Electric field produced by a uniform charge density on a wall
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Rod on a Plane: Calculating Angular and Linear Motion After Impact"
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To find the relative velocities of linear and circular motion
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Applying Newton's 2nd Law: A Scientist's Guide
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Understanding Balloon Charges and Interactions
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8
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Easy problem about two bars connected by a spring
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6
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Why is the power of a particle on a wave zero in a stationary wave?
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Kinematics and vectors -- A heavy box is being pulled using two tractors....
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What is the Total Capacitance After a Thread Cleanup?
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Babinet's Principle: Effective Aperture Dipoles (Matlab)
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Seat-belt effects on passengers during a crash
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Mass spectrometer with a Lead element
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How Do Kirchhoff's Laws Help Calculate I1, I2, and I3 in a Circuit?
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Solving the Melting Ice Problem
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What is the Electric Field Equation for an Electrified Sphere?
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A 2.00 kg rim with a radius of 20.0 cm is sitting on an 8.00 kg wedge
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Electric force between two equal parallel rings of charge
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Forces acting on a support point after the system is released
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Plotting experimental results on resonant frequencies
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Dynamic Equilibrium -- Acceleration of a rock thrown from a bridge
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Transforming E^2(x,t) to A_y^2 + A_z^2 in Harmonic Waves
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Understanding Wave Functions in a Semi-Infinite Potential Well
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Solving Quadratic Equations with y=A/[B+(x-C)^2]
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Grade 9 Physics (Heat fusion, Heat Capacity)
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Root Mean Square Velocity of Gases
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Finding the Force Applied by a Support on a Falling Chain
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Calculating Cp for Ideal Gases using Thermodynamic Relationships
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Buoyancy force when a ramp is under water
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Motion of a particle under a tangential force
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What does it mean that a rigid body is in equilibrium?
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Archived How Does Bernoulli's Equation Determine Flow and Pressure in a Tank System?
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What is the correct formula for the density of states in 2D for normal atoms?
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Stress-Strain Graphs of different materials
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Electric field inside a spherical cavity inside a dielectric
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Help with understanding this rigid-body equilibrium problem
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Why Is Understanding Capacitor Equations Crucial?
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Block bombarded by particles {colision}
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Lagrange equations of the first kind
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Laten heat of fusion calculation
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Sign conventions for work done by/on a system
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Calculus problem regarding Thermodynamics HW (entropy for C2H5OH at 348K)
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Succesive collisions between a ball and a wall
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The figure represents a system composed of pulleys
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Find the angle required for a 3kg block to slide down an incline
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What is the relationship between velocity and time on this graph?
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When does an object have kinetic rotational energy?
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Interpreting Stress-Strain Graph: Which Material Has the Highest Ductility?
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Mutual Inductance between a coil and a long straight wire
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Finding the efficiency of an ideal gas with adiabatic exponent 'γ'
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Have I Done This Question Right?
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What is the shear stress in a lap joint with a double lap configuration?
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Calculating the time to cross a river
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Projectile-car system and momentum
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Finding the final y-position of a projectile
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Trig type question -- Speed of sound in water and in air
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Fastener Theory - Determining the Ideal Torque for a Bolt
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Troubleshooting 3D Vector Work: Solving Angle and Displacement Confusion
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Coefficient of friction/conservation of energy problem
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Constructive, destructive interference help please
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Interference pattern for two glass plates closely separated and tilted
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Understanding rigid-body equilibrium problem
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Motion under a force perpendicular to the velocity
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How do I proceed with two different trig functions containing x on the left?
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How to determine the effect of counterforce on the angle of force
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