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.
Block on top of an inclined plane, with a rough surface, that moves with constant acceleration
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Energy analysis of the system (leaking bucket from Morin's "Mechanics"
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Textbook 'The Physics of Waves': Lifetime of SHM Oscillators
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Textbook 'The Physics of Waves': Calculating Work Done by Force
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Textbook 'The Physics of Waves': Reason to force us to consider complex solution for harmonic motion?
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Is there a limit on how much energy a photon might have in a FOR?
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How to parametrize motion of a pendulum in terms of Cartesian coordinates?
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Is the line integral of tangential force in pendulum equal to the negative of change in potential energy?
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What is meant by small oscillations for this potential energy function?
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Initial velocity of bird landing on horizontal wire modeled as spring
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Circular motion of a Weightless rod
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Electric field of point along the central vertical axis of a triangle
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Proving Newton's 3rd law from conservation of momentum
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Finding speed of two billiard balls in elastic collision
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Electromagnetism - Infinite plane of charge & Tension
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9
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Measurement of the Stefan-Boltzmann constant
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Why is the superposition principle valid here?
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989
Morin 3.7 -- Block sliding sideways on an inclined plane
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11
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How Do Mass and Weight Differ?
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Equivalence of Euler-Lagrange equations and Cardinal Equations for a rigid planar system
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4
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Rotating simple harmonic oscillator
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Deriving speed equations | Elastic collision
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904
Force analysis of a spring-bob system
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2
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796
Block on top of moving slab, with a rough surface - When does v_b=v_s?
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Impulse and perfectly inelastic collision between 2 points
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4
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965
Conservation of energy of a bow and arrow
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3
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Stretched spring attached to the center of a pure rolling disk
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11
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What is taken as datum level for the following absolute potentials?
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2
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706
Applying Force on a Cylinder at an Angle
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8
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Free Body Diagram of Mass-Spring System
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Conservation of Mechanical Energy - Which Equation To Use?
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Closest distance of approach between 2 charged particles
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System of two wheels of different sizes with an axle through their centers
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Change in Entropy When Mixing Water at Different Temperatures
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Question About Momentum: Ball Rolling up a Curved Ramp
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Homer Simpson spinning inside an hourglass
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4
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730
Resultant force on a parachutist
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A moving boat with a flag on its mast
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15
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1K
Calculating work done by a gas
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2
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939
Length Contraction Problem for a Rod in a Spaceship
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4
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710
Perfectly inelastic collision between Projectile and a hinged disk
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26
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1K
Moving charge deflected by a loop of wire
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898
Theory of relativity -- Car and Garage Paradox
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Maximum allowable value of a force
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5
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Conservation of Momentum Problem - Mechanical and Kinetic Energies
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Dynamics of a Block on top of a slab with friction between them
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Find the Period of Oscillation for a Mass Falling Through a Tunnel Through the Earth
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Textbook 'The Physics of Waves': Derive Complex Solution Form for SHM
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6
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Is it friction or tension acting on the person hanging on a rope?
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4
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Could someone help me study this cyclic process of an ideal gas?
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Spherical ball rolling back and forth in a bowl
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Determine the force with which the magnetic field of a coil acts on an infinitesimal cube of iron
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6
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Speed of charged balls after collision
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Electric Field of a quarter ring
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Maxwell disc linked to bar unwinds but stays at same height by raising bar
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Gauss' Law with a Insulating Shell
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Induced EMF in a rotating ring
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For what values of total energy is the resulting motion periodic?
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Why are moments not included in free body diagrams?
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Ruler measurements and knowing how many decimal places to include
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Energy analysis of this system (curved ramp up and a spring)
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29
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Dispersion of rightward steps in 1-D random walks
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3
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B-field from a current in a wire above a conducting surface
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Determining impulse given stopping distance and change in velocity
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Special Relativity: spaceships heading toward each other
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940
Quantum Mechanics - Time dependent solution - x's and t's not mixed up
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834
Torques acting on a cylinder, with friction
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638
Block connected to 2 real pulleys
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Manned spacecraft to Tau problem
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Events occuring in 4D spacetime
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651
A rod sliding/falling down on a frictionless horizontal plane
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8
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Why is a 1d conservative force approximately linearly related to position?
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Finding magnetic field using Ampere's Circuital Law
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Is My Understanding of Accelerations in Irodov 1.258 Correct?
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Two masses connected by Pulley - Lagrangian problem
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Trying to Calculate Initial Velocity and Final Velocity
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876
Colour depends on wavelength or frequency?
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22
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Magnetic field outside a semi-infinite solenoid
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12
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An ambigious optical system with ambigious solutions [JEE Adv - 20`16]
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Lagrangian of a block on an inclined plane
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Failed rocket problem (momentum conservation, Kleppner 4-4)
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883
Can a Falling Mass Generate 12V Using an Optimal Magnet and Coil?
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Double pendulum Lagrangian using small angle approximation formula
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Euler- Lagrange equation proof
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895
Find temperature of a U-shaped Tube
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How far do acorns drift in the wind?
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Rpm and power for this electric motor, gearbox and pulley system
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Normalising the wavefunction - two answers
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Relationship between linear velocity and angular velocity
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Is the Solution for Rotation of Spherical Mirrors Incorrect?
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How can I determine the instant the block overcomes static friction?
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General question about the definition of moment of force (Torque)
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What's the pressure long before the fluid exits a pipe?
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Oil enters a flexible bend in a pipe -- calculate the force needed to hold the bend in place
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Induced charge on a conducting sphere sliced by a plane
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Time it Takes for a Transverse Pulse to Travel a Distance "L" Up a Cable Against Gravity?
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Question about the current components inside the Corbino disk
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Pressure just before the exit hole in a draining tank
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Find the coefficient of friction between block and surface
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Block and wedge problem -- Where am I going wrong?
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