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.
How Long Would Earth Take to Collide with the Sun if It Stopped Rotating?
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Calculating Decay Constant and Amount of Thorium Plated
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Intensity of a sound wave problem
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What Parachute Size Ensures a Safe Ambulance Airdrop?
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Induced EMF Question: Calculate the Answer
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A pulley system with two objects stacked on each other
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Why Isn't Linear Momentum Conserved?
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Finding the tension of the string (vertical circular motion)
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Electric field between parallel plates
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Momentum and kinetic energy in collisions with a bullet
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Quick EMF question - Spherical Shell- North/South Pole, Equator
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Different types of energy: kinetic vs potential vs
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Electric field strength at the center of semicircle
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How Does Depth Affect the Buoyant Force on a Submerged Beach Ball?
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Gravitation Problem- Sun and Earth
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Maximizing and Minimizing Distance of a Bullet Fired from a Satellite
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What is the electric field at q due to 4 charges in a square configuration?
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Electric Field strength between 3 charges and directions
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Making a solenoid from 1.0m of wire. missing information?
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Initial Energy/Final energy on 2 capacitors
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Electric field strength of 4 charges positioned in a square shape
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Distance traveled by projectile
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Energy problem involving a projectile (tricky)
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Angular Momentum problem, Swinging door
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How much does a bullet penetrate a wall?
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Solving circuits with superposition (2 problems)
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Statics - finding a moment of a force in xyz plane
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Verifying That Diamond Is More Stable At Certain Conditions
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Center of Mass for a cubical box with a missing top
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Transfer function of this simple circuit
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Rotation: Speed of an object as it slips off a rotating disk
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Finding resistane and current non-ohmic
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Electrical force between charges
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Buoyancy - block of concrete is being raised from a lake
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Interatomic potential and binding energy system of equations
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Find Mass of Object 2 in Two-Mass Pulley System
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2 people throwing balls at each other on cart - cons. of momentum
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How to Write Mathematical Equations on Physics Forums
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A satellite will crash into the Earth if its velocity:
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The acceleration due to gravity on the surface of the Earth is:
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Is this circuit the same as this?
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Convertion of energy through photosynthesis
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TNT explosive is what type of energy?
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Electric field a spherical surface
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What is the object with the most momentum?
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Faraday Lenz lab - My calculations are Way off and I'm not sure why
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What is the effect of decreasing the widths of slits in double slit experiment?
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Problem with diffraction equations (diffraction and astrophysics)
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How Do You Calculate the Net Torque on a Square Plate?
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Force, Impulse, and trajectory help request
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Dimensional analysis. Please check my working
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How High Can Electrical Potential Get Near Large Charges?
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Solving for θ in a Parabolic Orbit
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How do I draw a displacement-distance graph for waves?
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Checking my reasoning on deriving fine sructure constant alpha
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How Is Acceleration Calculated in a Pulley System with Unequal Masses?
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Understanding Projectile Motion and Friction: A Comprehensive Guide
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Understanding Hydrogen Fine Structure Validity and Field Discrepancies
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How Do I Solve the Equation 117.72 = 100sin2x + 28cosx for x?
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How do you measure static force without considering acceleration and velocity?
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Finding Highest Energy for Fermions and Bosons in a Box
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Confused about string instruments and standing waves
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What is the Tension in a Two Pulley System?
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Calculate Car Deceleration and Stopping Distance | Cars Slam on Brakes
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How to Find the Electric Field Inside a Partially Hollow Charged Sphere?
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Phase constant and reflection of waves
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Radio Antennas and Young's Double slit
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How do I find the current through each resistor using Kirchoff's laws?
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Projectile Motion Ball Hurl Question
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What is the Electric Field on a Metallic Surface in an Electrostatic Field?
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Projectile Motion Jump Question
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Kleppner - Block on wedge with friction
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Expression for current through loop as a function of time
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What is the Mass of the Stone and Tension in the Wire?
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Time Dependent Current in a Wire
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Tensor of inertia - hollow cube.
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Finding current and charge in a RC circuit.
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Calculating Torque and Frequency of a Polar Molecule
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A 20 kg sphere is at the origin and a 10 kg sphere is at (x,y) = (20,0
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Solving for g: Derive Equation to Find Value of Acceleration Due to Gravity
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How Can I Solve This Compound Harmonic Motion Problem with Different Methods?
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Last edited by a moderator: May 6, 2017
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Bullet striking a block on a frictionless surface
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Voltage required to accelerate a proton into another one
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Particle sliding down a hemispherical bowl
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Rotational Inertia in two cylinders
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What is the acceleration of the ring on a vertical rod with a spring?
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Solving the Geneva Wheel Problem Homework
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Calculating Velocity of Mass in Ballistic Gel
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Satellite moving around a planet
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Three Disks Coupled by Two Belts
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Physics Lab - Electrical Circuits with Resistors and Capacitors
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Electrons bombard gaseous hydrogen - photon energies emitted?
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How Do Skaters' Velocities Change After Grabbing a Pole?
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I=5.805 kgm^2San Francisco YoYo Acceleration and Tension Calculations
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Understanding Orders of Magnitude: Clearing Up Confusion | Homework Help
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Calculating the Equation of a Transverse Wave
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Derivations - What's Acceptable?
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Kepler's Law to Determine Period of Asteroid
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What do the I's stand for in attenuation and power loss equations?
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