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.
What is the Net Resistance in a Circuit with Multiple 2.8Kohm Resistors?
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Deriving Magnetic Field Magnitude using Ampere's Law
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How Many Revolutions Does a CD Make When Stopping?
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Simple Harmonic Motion, rigid pendulum
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A Lab Question on Refraction/Reflection
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Minimum deviation in a Prism -
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Forces between charges. Did the problem, have question on the result.
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Pressure Variation in a Tilted Fluid Column
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Solving for Phase Constant: Simple Harmonic Motion
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Manipulating Simple Harmonic Motion Equation
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Efficiency vs Height: Understanding the Relationship
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Angular velocity of sphere and two points
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Satellite Orbit Problem what am I doing wrong?
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Interference of light - flat glass and an air wedge
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Tarzan, angel that rope breaks.
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Collisions/conservation of energy[conceptual]
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Strangely Confusing mechanics problem
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Electric field problem with acceleration
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Need help with Simple Harmonic Motion Problem
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Solve Parallel Capacitor Homework: Electric Field, Charge & Energy
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Need help with gravitation problem
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What are the deceleration and average braking force of a train?
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What is the applied force required to push an object up a ramp?
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Will current take the path of least impedance in this circuit?
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Center of mass and Moment of Intertia
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Finding angular velocity after block is moved from middle to outside of disc
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Work Needed to Accelerate 2008 Dodge Viper SRT
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What is the Electric Field in a Cylindrical Sheath?
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Moment of inertia of disc plus point mass at centre
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Plano-concave thin lens, checking my result
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Calculating the Center of Mass of a Boat with 3 People
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Rigid Objects Homework: Minimum Tipping Force & Friction Coefficient Calculation
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Differntial of wave equation solution
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Calculating Error in Linearized Data: What is the Method?
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Calculating Charge on Capacitors in a Two-Way Switch Circuit
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Magnitude and Direction of Magnetic Field
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Magnitudes and Directions of Currents in Resistor
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Two slit diffraction, neutron, kinetic energy
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Fluid statics seems easy but can't figure it out .
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What is Young Modulus and Why Does it Matter?
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Calculate the equivalent resistance of the circuit
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How Does Changing Length and Area Affect the Resistance of Copper Wires?
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Electric Fields/ Electric Potential
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Proving Thermodynamics equations using partial derivatives
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Problem 1.136 from Irodov's book
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Calculate Max Speed of Truck on Unbanked Curve Without Eggs Sliding
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Gravitational potential of two equal stars
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What is the temperature of the gas in state A?
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Ray of light striking a plastic sheet
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Electrical Wiring - corrosion, cracking and resistance.
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Help with Calculating Work Done by a Model Stirling Engine
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Given two vectors find a unit vector that is perpendicular
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Spring Mass system where springs also have mass
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Banked Roadway: Car Speed on a Curved Surface w/o Friction Force
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U-tube with Equilibrium Configuration
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Explaining Everyday Phenomena with Newton's Third Law
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Calculating Pressure Exerted by a Woman Standing on High-Heeled Shoes
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Calculating Fluid Pressure for Viscosity-Injection Problem
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Is the pressure on a diver different from the pressure on a lungfish?
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Turbulent flow, verifying a general DE solution
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Understanding the Brightness of Light Globes in Series Circuits
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Consevative and non-conservative forces
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Wave Interference and sound waves
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Estimating Pressure on a Person Standing on the Ground
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LED States in Current and Reverse Bias Circuit
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Determine the ratio of resistance
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Horizontal acceleration of an aircraft
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Estimating Delta(g)/g for a 1.00 km Diameter Spherical Pocket of Oil
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Calculating density Archimedes principle
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Superposition of 2 Waves: Equation
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Simple Constant acceleration equation but I dont get it
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Gravitational Fields and Satellite Motion
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Calculate Distance for Deceleration: 48 km h−1 to 2.68 m s−2
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Finding Resistance of Voltmeter in RC Circuit
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Potential Difference: 1 J = ? V
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Rutherford Scattering Problem.
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Identifying Electric Charge on Objects
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What is the magnitude of gravitational force between Earth and the Moon?
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Calculate the neutrino flux from the sun
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Work done during expansion of a gas
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Impulse on a Pendulum with a Bullet
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Can Someone help me out here, please?
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What Determines the Mass Ratio in a Binary Star System?
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Big Ben's clock - angular speed problem
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What is the speed of Sam at the bottom of the slope?
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Generator connected to transformer- Find angular speed of coil
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How Do You Calculate the Moment of Inertia for a Sphere Using Shell Integration?
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What is the density of the body in Archimedes' Principle problem?
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Physics (resistance and lightbulbs
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Finding the Initial Charge on a Sphere Based on Coulomb's Law
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Calculating the Density Function for Redistribution of Melted Ice on Earth
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Solving Rolling Friction Homework: Angular Speed
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Removing Resistors for Same Output Voltage
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Projectile motion of a fired cannonball
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Center of mass: What would make the truck tipover?
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Can you calculate the average net force on a bullet embedded in wood at 320 m/s?
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Does a 10% Change in Power Supply Voltage Affect a Balanced Wheatstone Bridge?
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Understanding Hooke's Law and SHM: A 4kg Mass on a Spring with k = 40n/m
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Calculating Current in a Single-Loop Circuit with Resistor and Capacitor
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Roller coaster: kinetic energy
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