Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Calculating the horsepower for a motor
- JustinLiang
- · Replies 4 ·
Finding angles of Phi. Very challenging.
- Dukethepuke
- · Replies 5 ·
How to Calculate Final Pressure of an Ideal Gas with Changing Conditions?
- astru025
- · Replies 1 ·
Supersonic airplane emits a sound when right over a listener
- krvolok
- · Replies 4 ·
Falling rod, finding velocity of CM
- Saitama
- · Replies 12 ·
Expansion of Van der waals for small pressure
- CAF123
- · Replies 1 ·
Balancing a Beam: Man and Cans Experiment
- davev
- · Replies 10 ·
Conservation of Energy Problem
- ianmgull
- · Replies 4 ·
Time difference between 2 events in moving frame
- Rococo
- · Replies 2 ·
What are the components of F and how can vectors be used to determine them?
- sevag00
- · Replies 31 ·
Calculating Speed of MRO Orbiting Mars
- 462chevelle
- · Replies 10 ·
How can I find the length of a day on Jupiter from wavelengths?
- Remon
- · Replies 25 ·
What is the Equilibrium Angle of an Immersed Wooden Stick?
- nil1996
- · Replies 1 ·
Image formed by a mirror - What is asked?
- Doyouevenlift
- · Replies 7 ·
How Can You Predict the Fall Time of Coffee Filters Using Drag Force Equations?
- mawr95
- · Replies 3 ·
What is the role of sinh in Snell's Law?
- hb20007
- · Replies 6 ·
Pot cooking food and being cooled, how does the pressure change?
- ShizukaSm
- · Replies 8 ·
Magnetic field, current with arced path
- iRaid
- · Replies 2 ·
Solving Flux Graphs - Need Help!
- fredrogers3
- · Replies 1 ·
Conceptual doubt in angular velocity
- Tanya Sharma
- · Replies 26 ·
Calculating work done using vectors
- ClassicRock
- · Replies 1 ·
Circular Motion Rotational Axis
- woaini
- · Replies 3 ·
Solve Quadratic Equation for Cliff Height
- frosty8688
- · Replies 5 ·
Dynamics- Net Gravitational Force
- hsphysics2
- · Replies 1 ·
Abstract question- solving for acceleration up an inclined plane
- will5656
- · Replies 2 ·
How Can I Calculate Reciprocal Lattice Vectors for a 2D Lattice?
- jonesj314
- · Replies 4 ·
Determine the balls mass from force by gravity
- nickb145
- · Replies 2 ·
How Do You Calculate Kinetic and Potential Energy in Free Fall?
- KTiaam
- · Replies 3 ·
Horizontal Pulley Question [Forces]
- harujina
- · Replies 3 ·
Determine total mechanical energy
- nickb145
- · Replies 1 ·
Centrifugal Force, Centripetal Force, and Space
- evaengineer
- · Replies 2 ·
When should I use cosine or sine for sum of forces in the y or x direction?
- eseefreak
- · Replies 2 ·
Violation of first/second law in a Cylic process
- CAF123
- · Replies 19 ·
Find Force from Flux: Solar Sail at 3 AU
- ma18
- · Replies 4 ·
Solving a Car Coasting Downhill Problem: Average Retarding Force
- TeeNaa
- · Replies 3 ·
How Does Bertz Law Calculate Wind Turbine Power?
- courtneywetts
- · Replies 1 ·
Friction with two blocks and tension
- fogvajarash
- · Replies 5 ·
1D Elastic Collision - Velocities in the CM/ZM Frame
- Zatman
- · Replies 18 ·
Electric field for an infinite slab with non-uniform charge density
- PeteyCoco
- · Replies 6 ·
How Far Does a Box Slide Down an Inclined Plane to Compress a Spring?
- domo
- · Replies 16 ·
What is the work of a moving bowling ball?
- domo
- · Replies 9 ·
Is the Ideal Gas Law Applicable to Non-Isothermal Processes? | Homework Question
- SherlockOhms
- · Replies 2 ·
How Does Horizontal Acceleration Keep a Block Stationary on a Wedge?
- Rococo
- · Replies 11 ·
Determine which mass is going to reach the bottom first
- fireblasting
- · Replies 16 ·
Induced emf in coil with decreasing current
- kopinator
- · Replies 3 ·
Coil, 110 GA, r = 70m. How much tension force is generated?
- nehorlavazapal
- · Replies 2 ·
How Does Atom Interaction Influence Motion in a One-Dimensional Crystal Lattice?
- bobibomi
- · Replies 63 ·
Solve Toppling Problem: Understand Torque Equation
- Saitama
- · Replies 28 ·
Computing the work of a turbine.
- S. Moger
- · Replies 7 ·
Inleastic collision with unknown mass
- Solemony
- · Replies 5 ·
Calculating impact velocity of freefalling object with increasing grav
- TheBladeRoden
- · Replies 1 ·
How Can You Correctly Calculate Forces in a Truss Analysis Problem?
- lecammm
- · Replies 1 ·
Rigid Body Kinetics: Find Reaction Force at A
- lecammm
- · Replies 4 ·
Velocity Vs. Time Graph Extension Help
- ChEmWen
- · Replies 2 ·
Calculating Coefficient of Air Resistance
- Bashyboy
- · Replies 3 ·
Cycling Up a Hill: Calculating Work Against Gravity
- zaddyzad
- · Replies 8 ·
Some Qustions of Electrostatic Induction
- rizwankhalil
- · Replies 2 ·
Acceleration Problem: Need Help Solving!
- Workout
- · Replies 1 ·
Banked Curve Impossible Problem
- physicsnobrain
- · Replies 5 ·
Projectile motion - equations giving different answers?
- lilyxmo
- · Replies 3 ·
Projectiles launched from platforms of different elevation.
- Vikings230
- · Replies 1 ·
Equations for Accelerated Motion Problem
- Medgirl314
- · Replies 2 ·
Physics Particle Decay Question (Cons. of Momentum?)
- jlewallen18
- · Replies 1 ·
Equations for Accelerated Motion Problem 2
- Medgirl314
- · Replies 2 ·
Equations for Accelerated Motion 4
- Medgirl314
- · Replies 7 ·
How Much Speed Can You Generate Using Mechanical Energy?
- jimmyboykun
- · Replies 4 ·
Centripetal Acceleration of rope and bucket
- physicsnobrain
- · Replies 3 ·
Equations for Accelerated Motion 3
- Medgirl314
- · Replies 3 ·
Discussions on certain questions.
- chandra.phys
- · Replies 4 ·
What Forces Keep the Book Stable on an Inclined Bookshelf?
- vanitymdl
- · Replies 3 ·
Object on Inclined plane with Force applied and Friction
- Javier21
- · Replies 5 ·
How do I calculate the diameter of a cyclinder using F= P x A ?
- wolfmanwm
- · Replies 1 ·
Wave function and infinite square well potential
- leroyjenkens
- · Replies 9 ·
Understanding RC Circuits and Voltage Distribution
- oreosama
- · Replies 8 ·
Birds Colliding mid-air, Conservation of Momentum
- tbdm
- · Replies 1 ·
How to calculate detector voltage from resistances?
- PhizKid
- · Replies 8 ·
How Much Power Can Niagara Falls Generate with 90% Efficiency?
- courtneywetts
- · Replies 4 ·
Calculating Buoyant Force for Submerged Materials
- astru025
- · Replies 18 ·
Calculating mass of air displaced in compressor.
- SherlockOhms
- · Replies 2 ·
Projectile Motion Lab: Accuracy and Factors Affecting Range
- lilyxmo
- · Replies 11 ·
Tension in cable and reaction force
- member 392791
- · Replies 2 ·
Forced Damped Oscillator frequency independent quantaties
- mbigras
- · Replies 1 ·
Sulfur Hybridization and Bonding
- Qube
- · Replies 1 ·
Particle on a sliding inclined plane
- Zatman
- · Replies 15 ·
Calculating Spring Constant and Mechanical Energy
- xCharade
- · Replies 1 ·
Electric Field over a charged cylinder using only Coulomb's Law
- PeteyCoco
- · Replies 4 ·
Field strength is the potential gradient graph question
- mrcotton
- · Replies 6 ·
Conceptual Question on Impuldse of inelastic collision
- Tribean
- · Replies 6 ·
Magnetic Field Inside a Charging Capacitor
- Plasmosis1
- · Replies 1 ·
What Are the Equations for Equilibrium and Motion in Physics Problems?
- Gundam101
- · Replies 3 ·
Solve KVL and KCL for V0: Find Voltage Using Kirchhoff's Laws
- sevag00
- · Replies 4 ·
What is the direction of the magnetic field at point P?
- outxbreak
- · Replies 2 ·
Grade 12 Physics - Circular Motion - Universal Gravitation
- synchrostarr
- · Replies 1 ·
Angular Momentum tricky problem
- lecammm
- · Replies 1 ·
V=[k(q)/r] + [k(-q)/r] Finding the points where v is equal to zero.
- rslewis96
- · Replies 1 ·
Vertical Circular Motion problem
- hey123a
- · Replies 7 ·
Does the Gravitational Force at the Event Horizon Increase with Black Hole Mass?
- bowlbase
- · Replies 1 ·
Finding current through a resistor
- freshcoast
- · Replies 24 ·
AP physics- finding buoyant force
- astru025
- · Replies 4 ·
What was the relationship tested in the running shoe ramp experiment?
- jefflincoln
- · Replies 1 ·