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 are the forces and displacement involved in this body's movement?
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Calculating acceleration in a pulley system
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How Is the Magnetic Field Calculated to Levitate a Wire Carrying Current?
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Thermodynamics - shaking a bottle with liquid
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Maximizing Fuel Efficiency: Calculating Gas Mileage for a 20% Efficient Car
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Perpendicular Vector with given magnitude
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Is there an easier way to solve for theta in this equilibrium problem?
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Motion up an Inclined Plane - Not sure if I did it right
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Rotational physics conceptual questions
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Two masses one woman one acceleration
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Calculate magnitude and direction of mass's acceleration.
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Understanding the concept of tension
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A Proton is fired from far away towards the nuclues of a mercury Atom
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Μk sliding friction of a block down an Inclined Plane
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Calculating Potential Energy Increase in a Massless Spring
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What Height Does the Package Rebound to After a Perfectly Elastic Collision?
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Graphing Equations with Fractions on a TI-84 Calculator
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Finding the mass of an object suspended by two ropes
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Is Negative Total Energy Possible in the Universe?
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Frictional Forces and Acceleration: Solving for Horizontal Component
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Finding velocity when a mass suspended from a spring passes through equilibrium
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Kinematics of a Falling Object: Calculating Velocity
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How High Does the Dart Travel When the Spring is Compressed Half as Far?
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Kinematics: Falling from a Tree
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What is the velocity of a particle at t=2seconds given force function (x)
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Finding Velocity in Spring Problem
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Maximizing Circular Motion Experiment Accuracy with Horizontal Tension Force
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Velocity and acceleration graph of this force?
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Angle and Frequency in Horizontal Circular Motion
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Clock Hands Lengths: Hour 4", Minute 6", Second 7" | 24hr Travel
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Spring Compression HW: Work, Height, Max Compression
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Average Power and Work-Kinetic Energy Theorem problem
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Uniform circular motion - stone in pail
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Design Portable Container for Medicine at 4 °C for 12 Hours
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How can you determine the forces in equilibrium without using calculus?
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Pole-Vaulter Landing on a Padded Surface
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Static Equilibrium/Torque-Calculating the force required to tip a box
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Coefficient of friction on wood problem
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Calculating Vertical Distance of Electron in 2D Motion
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Finding Parallel/Perpendicular Forces & Normal Force
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Why Do Overloaded Brakes Emit Flames?
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Calculating Distance and Displacement in One Dimension
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How Do You Calculate the Mass of the Second Penguin?
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Integrating non-constant acceleration to give time
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Uniform circular motion mass problem
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What is the force constant and work done in stretching a Hooke's-law spring?
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Finding Maximum Speed of Block on Vertical Spring
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Solve Physics 20 Questions: Help for Final Exam
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Work problem, involving a circle and velocity
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Pushing at an angle up an inclined plane
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Finding i(t) Across R3 & R2 After Switch Closure at t=0
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Golf Ball Question: How Far Does It Travel?
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Finding Resultant Vector: A=220g@0°, B=100g@110°, C=160g@260° | Homework Help
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Finding Force of Contact: 2kg and 3kg Blocks with 10N Horizontal Force
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Reflectance and Transmittance of Light in Water-Glass Interface
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How Does Power Affect Car Acceleration with Air Resistance?
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Why Static Charges are Affected on Dry Days
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Conservation of Linear Momentum problem
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Spring Physics Problem Solution: Launching Rocks to Survive on a TV Show
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Needs help with pressure and work done
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Calculating Powder Volume: Tips and Tricks
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Work and Energy of falling mass attached to mass with friction on incline.
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Need help with friction question
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Accelerating a Car with Power P: Results & How Long?
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Calculating Alpha: Intercept & K
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How much weight 2 different angled ropes can support
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Max Speed Homework Solution - Find Maximum Speed
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Finding acceleration and tension
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  • Poll Poll
What is the Reaction to the Force of Gravity on a Suspended Lead Block?
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Gravitational Potential Energy Problem
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Guitar string - standing wave question
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Force on an Object: Find Force Exerted by 7.0kg Block
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Work and Kinetic Energy Question.
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How Does Adding a Second Mass Affect the Dynamics of a Vertical Spring?
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Finding Speed Using Conservation of Energy
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Thermodynamics Cubes of Metal Problem
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Thick spherical shell confirmation of solution
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What is the acceleration of the upper block connected by a string?
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Acceleration Graph for an Object with Given Force-Time Graph
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Calculating Normal Force from Slide on 23 kg Child
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Force vs. time graph (Impulse)
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Vaguely defined vector related question
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How Fast Does an Arrow Travel in Archery?
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Calculating Ball Speed and Maximum Height
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Finding acceleration and force of pulling
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Calculating Volume of a 100kg Mass in Freshwater
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Permittivity Constant and Coulomb's Law
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20N Fapp vs 20N mass on a pulley
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Motion Near Earth's Surface - grade 11 physics
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Is the Vector Product Really a Vector?
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Conservation of Energy: Kinetic to Elastic Potential
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How Do Friction and Incline Angle Affect Forces Between Two Sliding Masses?
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Finding Brewster's Angle via Fresnel Equation
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Designing a Mousetrap Car for Optimal Distance: A Physics Project
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A solid non conducting sphere
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Conserved Momentum Problem: Finding Velocity of a Block on a Slope
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To find out forward force of a ship
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Volume question (freshwater, saltwater, mercury)
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Projectile physics homework problem
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Proving Velocity Averaging: <u> = 0, <u^2> = 1/3 <v^2> & <|u|> = 1/2 <v>
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