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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How to find forces acting on object on a slope?
- urbano
- · Replies 7 ·
Induced EMF in loop near wire with time-varying current
- fredrogers3
- · Replies 1 ·
Amount of Revolutions Based on Multiple Radii
- woaini
- · Replies 12 ·
Solving for Muon Speed & Neutrino Energy
- stefan10
- · Replies 1 ·
Puppy displacement and average velocity with vector addition
- Confetti
- · Replies 2 ·
Center of mass with 2 people, a medicine ball, and a beam
- nathancurtis11
- · Replies 1 ·
Calculating Electric Field at the Center of a Hemispherical Shell of Charge
- swervin09
- · Replies 5 ·
2 pulley system with three masses. Find the two outside masses.
- manderzz
- · Replies 2 ·
Centripetal acceleration of a hammer whirled at 1.76 rev/s
- TwoTeez
- · Replies 6 ·
How long must a ramp be for a unicyclist to climb 1 meter with 50N force?
- woaini
- · Replies 8 ·
RC circuit question(Charging A Capacitor)
- lionely
- · Replies 13 ·
What Weight Can a Wooden Block Support Before Sinking?
- astru025
- · Replies 13 ·
Find Min Torque to Lift 15kg Bundle of Shingles
- insidelace
- · Replies 1 ·
Calculating the collusion and loss of energy?
- Matriculator
- · Replies 8 ·
Circuit Problem involving resistors and a switch
- yaro99
- · Replies 4 ·
Equations for Accelerated Motion (Two problems)
- Medgirl314
- · Replies 18 ·
Work done by applied force and friction on a 150-kg crate at constant speed
- jimmyboykun
- · Replies 3 ·
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 ·
Atwood machine: initial and final states for energy
- 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 ·
Drawing magnetic flux and rate of change graphs for a moving cart
- fredrogers3
- · Replies 1 ·
Angular velocity in car A's reference frame with angle ambiguity
- 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 ·
Can the ideal gas law apply to non-isothermal processes?
- 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 ·
When can you apply the torque equation about point O in a toppling problem?
- 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 ·
Why does velocity spike to zero at the end of a motion detector graph?
- ChEmWen
- · Replies 2 ·
Calculating Coefficient of Air Resistance
- Bashyboy
- · Replies 3 ·
Work against gravity going up a hill
- zaddyzad
- · Replies 8 ·
Some Qustions of Electrostatic Induction
- rizwankhalil
- · Replies 2 ·
Matching motion diagrams to acceleration descriptions
- 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 predictions don't match lab results at 35 degrees
- 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 ·