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.
Ratio of acceleration of two solid cylinders released on two inclined planes
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Field of a Trianglular Solenoid
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Path/time function of a freesbie (the ride at amusement parks)
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Finding the current in Field winding
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Calculating Boiling Point of a Solution: A Joke Problem for Extra Credit
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A bit confused about significant figures
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Calculating the Force and Torque on a current loop
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Normalisation constants with ladder operators
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Spring constant matrix and normal modes (4 springs and 3 masses)
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Angular momentum: Grooved cone with a mass sliding down the groove
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Work & energy VS conservation of angular momentum
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Can Tension in a Whirling Rope be Modeled as a Centrifugal Force?
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Choosing proper coordinates in a complex 2 pulley system
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Estimate the partition function by analyzing a graphic
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Position and Momentum probability for +x direction
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Can mv^2 /2 + mu^2 / 2 + kq^2 / L = kq^2 /X? Find Out!
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Need Help With These Resistor Network Problems Please
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What are the other forces acting on ##dm## in addition to gravity?
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Direction of acceleration of a projectile with drag force
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Two blocks on a third block which is split into two ramps
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8
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Understanding Motion and Collision in the Absence of Gravity
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Mechanics: A bowling ball is thrown and rolls with slipping
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Easy interference problem regarding Newton's rings
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How to Grow a Sustainable Garden""Growing a Sustainable Garden: Tips & Tricks
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What is the derivation for the probability of energy in quantum mechanics?
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Correct statement about error and uncertainty
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Simple harmonic motion homework
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Basic question about coplanar forces
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Falling Rain Drop (Variable Mass)
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16
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Gear Rotation puzzle is confusing 50:10 GR but 6 rotations
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20
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Sketch a qualitatively accurate graph of the entropy of a substance
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1
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Triangular Trolley: Solving Mass & Force Dynamics
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15
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Pressure & Force: Gases, Liquids, Solids
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12
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Doubt about the 2nd position vector direction in a particle's movement
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4
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Why is the downward force on 1kg in a force pulley system 60N?
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5
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The Effect of Increasing the Size of a Solid on Its Entropy
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The Vertical Force of a Spring: A Logical Argument
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Do Spikes Increase Friction? Benefits of Wearing Spikes for Runners
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Questions on Wheels: Reduce Friction & Traction
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What Is the Opposing Resistance for a 14ohm and 10ohm Circuit?
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A skier goes down a slope -- Ignoring friction, calculate the acceleration
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Doppler radar measurement by an aircraft
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Moment of inertia, center of mass and vincular reaction of a rod
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16
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Verifying Coordinate System for Electric and Magnetic Forces
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Total energy of the normal mode on a string
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Pulling a tablecloth from under a glass
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I want to learn about basic and advanced angular momentum
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Hydrostatic pressure of liquid in a cart on an inclined ramp
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Variable friction on an inclined plane and maximum velocity
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What Is the Frequency of Small Oscillations for a Pivoted Rod with Two Springs?
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Angular acceleration calculation
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Is the Time to Reach Earth's Center Correct?
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What size flywheel do I need to produce 200kg torque or resist a force of 200kg?
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Moment of inertia of two coaxial disks
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Momentum Problem -- Bullet fired into a block of wood
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Normal force acting on a block on an accelerating wedge
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How to Become a Better Cook""Becoming a Master Chef: Tips for Better Cooking
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How Do Kinetic and Potential Energy Differ in Physics?
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When Will the Car Overtake the Truck?
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The center of mass of a semicircular arc of non-negligible width
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Question about charged capacitors and inserting a dielectric into one
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What am I Missing? Solving Conservation of Energy
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Tilting the plates of a parallel plate capacitor (and other changes)
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Calculating Pressure & Density Proportions with Changing Altitude & Temperature
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A block on an accelerating wedge
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Finding the excess electrons per lead atom
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Solving Waves on a Metal Rod with kx + Φ
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Degrees of freedom of a water molecule
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Question about Waves on a String
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What exactly is pulling the man up/down in rocket?
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Length contraction and Time dilation for LIGHT?
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Did I Calculate the Speed of a Comet Correctly?
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Calculate the New Velocity and the Velocity of a Pendulum Mass
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Fundamental frequencies in a violin string.
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Clausius clapeyron and heat capacity
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Rigid body sliding without overturning
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Point-like charge between grounded plates: Induced charges
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Pipe Friction, Reynolds number & Bernoilli's Equation
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Change in a rocket's kinetic energy
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Angle of deviation from a magnetic field
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Thermodynamics: phase change and latent heat problem
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Trivial : Use of "negative sign" when calculating centroid
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(Conceptual Problem) Whether the ball can pass through the basket
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Conceptual Problem - Static Equilibrium
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What is a "Torsional Constant"?
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What is the algebra concept used to derive time dilation formula?
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Coupling Efficiency of LED to Fiber Optic Guide
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Mean Free Path of Air Molecules
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Torque on Left Foot of Man in Rotating System
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Electric field in a spherical shell
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Energy conservation of metallic balls
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Equations for the velocity of progressive travelling waves
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System subject to a driving force
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Measuring Blocks Equilibrium Displacements
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Energy consumed for same work with different power?
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Understanding Momentum Conservation in Simple Harmonic Motion
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The location of the point with lowest kinetic energy
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How to simplify this capacitor circuit?
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What is the correct expression for the total moment of inertia in this scenario?
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(Check solution) Conceptual problem about the equilibrium of a rigid body
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