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.
Solve Force Problem: Tension of Wires Holding 20.0 kg Object
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Pulling Horizontally: Force Problems - Help Needed
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Cylinder-and-piston physics probem
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Concept MC Questions - Clarifying Earth's Rotation & Ladder Friction in Space
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Calculating Bullet Speed Before Impact for Vibration Problem
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Formula to calculate Rocket Thrust
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At what rate must the current be to changed to produce 40V emf
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What is the rms potential difference across the resistor?
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Get the resistance for each wires
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Solving Mechanics Questions: Tips and Tricks for Success
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How Do You Calculate Acceleration with Friction Involved?
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Bridges and Archimedes' principle
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Whats the force of this baseball?
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Solve Physics Exam Confusion: Sound Waves & Calorimetry
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Calculating Cork Volumes for Amusement Park Water Slide
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What Is Magnetic Wire and How Is It Used in Building an Electromagnetic Motor?
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When are farenheit and kelvin numericaly equaly?
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Checking Work on Condensing Steam: A Challenge!
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A confusing question - melting ice
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What Do You Do When A/B Forces Aren't Shown?
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How Does the Kinetic Theory of Gases Explain Gas Movement in a Cylinder?
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Is my book right? it seems wrong
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Calculating Speed of Falling Meter Stick
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When should the Parallel Axis Theorem be used in mechanics?
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What is the Final Temperature When Lead Shot is Mixed with Water?
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Help elastic head-on collision
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Solving Linear Momentum: Glass Bead Stream Problem
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Sound Waves - phase difference from time delay
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Static Equilibrium: Finding More than One Balance Point
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How to: Force, work & dot product
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Image distance / focal length relation
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Ski Turn Radius, Inclination at Speed & Balance
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Conservation of Energy & Circular motion
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Optimal Escape Strategy: Apogee or Perigee?
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Calculate the gravitational field strength
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Initial Amplitude and the Release Point
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What is the relationship between speed and radius for a car to avoid skidding?
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Quick Question so I can finish this homework problem.
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Conservation of energy springs.
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Need help w/ Angular Momentum please
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Pulley problem using 2nd Law of motion
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Minimum Uncertainty of Electron's Momentum
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Dalton's Law and Partial Pressure
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Find Thevenin Voltage & Current Across R2: Tricks & Tips Included
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=Homework Problem: Longest Vertical Soda Straw
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How does Doppler affect the observed period of a moon of Jupiter?
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Question about optics (diffraction)
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Damped harmonic oscillator physics
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Rock Climbing: Maximum Tension & Acceleration for Safe Ascent and Descent
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Calculating Required Air Temperature for Hot Air Balloon Stability
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Ballistic Pendulum Lab: Solving for Cart Speed
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Yes, that is correct. This is known as the critical velocity for a pendulum.
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Is the Principal Quantum Number n the Same as Planck's Proposed Quantization?
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A ball is thrown from the roof of a building
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Rotation of Rigid Bodies- mastering physics 9.72
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Why is my calculation for the speed of a falling rod off by sqrt(2)?
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Solving Newton's Laws of Motion: Tips for Solving Friction Problems in Physics
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Gas Pressure in Open-End U-Tube Manometer
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Statics: Shear force and Bending Moment
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Solving a Vertical Cylinder Pressure Problem
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Struggling with a Homework Problem - Need Assistance
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Static Equilibrium of massless rope
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Calculating Energy Equivalent of 1 Gram Mass
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Calculating Amplitude of Elliptically Polarized EM Wave
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Solve Very Tough Question: Debunk Astrologists' Belief with Average Mass of 60kg
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Solving Torque Question 3.12: Find Force F
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Calculating Force and Work of Man Pushing Piano
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Find the Largest Iron Asteroid to Launch into Space | Physics Problem Help
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What Is the Final Temperature of a Heated Copper Ball?
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Is Converting Kgcm to Nm Correct?
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Solving for Car Mass with Gauge Pressure and Surface Area | Physics Problems
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What Is the Maximum Amplitude of Harmonic Motion Without Slippage?
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How Is the Force Distributed in an Evacuated Chamber with a Panel Cover?
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How Does Temperature Scale Impact Gas Pressure Calculations in Thermometers?
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Fluids - bringing together pressure, depth and friction
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Why cosine theta for calculations?
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Magnitude of elec field to balance electron?
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Gravitational Potential and Satellite Motion
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A Few Statics-Related Questions
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What is the period of this pendulum?
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Calculating Distance of Two Speakers Producing 162Hz Sound
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Some questions about Schroding's cat
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Simple Harmonic Motion oscillations
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Lab based conservation of energy quesiton.
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How Do Binary Stars Orbit and Affect Each Other's Mass and Distance?
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How to Apply Heat Flow Equations to a Sphere?
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Understanding Otto Cycle: Calculating Cycles, Heat Input, and Efficiency
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Calculating Frictional Force in a Water Eroded Tube: A Case Study
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How Does Temperature Affect the Resonant Frequency of a Hydrometer?
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Angular velocity - spherical coordinates
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Centrieptal accleration and the poles of the earth
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Gravitional Potential Energy and Mass of Earth
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Calculating Distance Between Two Speakers Producing 180Hz Sound in Phase
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What is the Velocity of a Person at the Equator?
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Understanding Period and Frequency in Waves and Pressure Changes
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Colliding blocks attached to a spring - How is the spring compressed
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What Happens to the Force on Charged Particles When They Move Apart?
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Calculating Electron Speed in a Magnetic Field
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Find Speed of Light in Medium with Index of Refraction
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Some Applications of Newton's Laws of Motion
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