Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
What net force is acting on the object along the incline?
- rculley1970
- · Replies 3 ·
Solve Thin-Lens Equation: Prove u=v, Find Focal Length Change
- sci0x
- · Replies 1 ·
Particle Momentum Conservation in a Two-Particle System
- frozen7
- · Replies 4 ·
Calculating Energy Stored in a Wire: Young's Modulus, F, L, & a
- Amith2006
- · Replies 7 ·
Master Dynamics Concepts with These Physics Questions | Need Help?
- ohlhauc1
- · Replies 2 ·
Solving Frictionless Force Problem: Magnitude & Direction
- rculley1970
- · Replies 16 ·
Solving Sound Interference: Find Diff. Freq. Destructive Interference
- kahless2005
- · Replies 3 ·
Velocity of Sphere After Collision with Vertical Wall
- vaishakh
- · Replies 5 ·
Capacitors in series and parallel
- RadiationX
- · Replies 6 ·
Combined problem: momentum & friction
- N_L_
- · Replies 1 ·
Magnetic forces aon currents and magnetic induction
- abc123
- · Replies 1 ·
Electrical Force and Coulomb's Law
- Trista
- · Replies 2 ·
Powering Homes with 10,000,000 Volts
- niallniall
- · Replies 7 ·
Interference question, thin film
- georgeh
- · Replies 4 ·
Unit Conversion Troubleshooting: Identifying and Correcting Common Errors
- badtwistoffate
- · Replies 4 ·
Loop-the-Loop with rotational motion
- nahya
- · Replies 5 ·
Can You Send Electricity Back to UK Grid?
- niallniall
- · Replies 2 ·
How Do You Calculate Air Temperature from Echo Delay and Speed of Sound?
- Moe_slow
- · Replies 2 ·
Overweight Truck Crossing a Bridge
- physicsss
- · Replies 2 ·
Integrating Projectile Motion with Circular Motion and Simple Harmonic Motion
- kentus
- · Replies 8 ·
Projectile motion - no angle given?
- raizen91
- · Replies 2 ·
Calculating Initial Velocity with Spring Constant and Mass: Homework Problems
- kbean5588
- · Replies 2 ·
How Does Acceleration Affect an Astronaut's Apparent Weight Near the Moon?
- N_L_
- · Replies 1 ·
What is the direction of the change in velocity of the ball?
- rachael
- · Replies 2 ·
Increase Ball Velocity with Newton's Laws
- Mozart
- · Replies 5 ·
Gravitational field inside the earth
- jackiefrost
- · Replies 9 ·
How Long Must a Day Be for Weightlessness at the Equator?
- madis
- · Replies 3 ·
Solving the Mystery Problem: Finding the Submarine Depth & Velocity
- motherlovebone
- · Replies 1 ·
How great is the tension of the wire
- gemz
- · Replies 2 ·
Momentum of falling mass problem
- rachael
- · Replies 3 ·
Resonance in Closed Air Coloumn
- SRForum
- · Replies 2 ·
Solving an Uphill Task: A 10° Frictionless Ramp & 8 m/s Cart
- fizzicks
- · Replies 5 ·
Sound waves and eardrum problem
- thschica
- · Replies 1 ·
Calculate the acceleration of the system
- RedBurns
- · Replies 1 ·
Calculating the Mass of Orbiting Stars: A Problem-Solving Approach
- Eivind
- · Replies 17 ·
Calculate Acceleration of Mass m3 with Non-massless Pulley
- nahya
- · Replies 1 ·
Electricity and magnetism. 2 questions
- Brewer
- · Replies 2 ·
Understanding Cosine Theta in Work Equation
- Roger900
- · Replies 2 ·
Solving Tension Force: Angle & Magnitude
- RedBurns
- · Replies 3 ·
How Do You Calculate Train Acceleration and Distance Between Stations?
- John O' Meara
- · Replies 3 ·
Circular motion and water whirl
- JDBB
- · Replies 5 ·
K in Hookes Law vs. Spring Potential Energy
- jeffholmes1
- · Replies 2 ·
Calculating Tension in a Moving String: Is it Possible?
- MrLobster
- · Replies 4 ·
Calculating Coefficient of Kinetic Friction on an Inclined Ramp
- superdave
- · Replies 8 ·
Potential Energy Questions - I'm lost, help
- kfink85
- · Replies 4 ·
Why Is Gravitational Acceleration Least at the Equator and Maximum at the Poles?
- Milind_shyani
- · Replies 8 ·
AP Physics Test: Energy Problem
- mooshasta
- · Replies 6 ·
What Is the Relationship Between Shock Cones and Sonic Booms?
- motherlovebone
- · Replies 3 ·
Solving q(1.204): Charge Flow in Circuits
- Sajjad
- · Replies 3 ·
How Do You Calculate Bicycle Speed and Friction in Circular Motion?
- sauri
- · Replies 1 ·
Visible Light Reflection from Oil-Water Interface in Parking Lot
- truckerron1
- · Replies 5 ·
Speed of Voyager 2 after slingshot encounter?
- atomant
- · Replies 4 ·
Capacitance W/ Dielectric Problem
- minhngo
- · Replies 6 ·
How Does Relative Motion Affect Magnetic and Electric Forces on a Charge?
- Anisotropic Galaxy
- · Replies 1 ·
What Are Shock Cones and How Do They Relate to Mach Numbers?
- motherlovebone
- · Replies 2 ·
Calculating Up-Doppler with 600nm Laser Scanning at 55m/s | Mega Sig Figs
- motherlovebone
- · Replies 3 ·
Calculating Entropy Change in a Diatomic Gas Sample
- SwMarc
- · Replies 3 ·
Effects of Doubling Primary Coil Current on Secondary Coil Induced EMF
- matt85
- · Replies 11 ·
Keplers laws and a hypothetical 1/r^3 dependence
- standardflop
- · Replies 1 ·
Solving Two Charge Problems: Need Help
- that1grrl
- · Replies 3 ·
Proving ellipse shape of earth orbit?
- adiputra
- · Replies 2 ·
Contest question The sinking oil barge. Help
- fisico
- · Replies 12 ·
Finding Cable Angle and Components of Tension Force in a Rotational System
- lektor
- · Replies 2 ·
Electric Potential in Insulated U-Tube
- PK_Kermit
- · Replies 1 ·
Conservation of Momentum in Inelastic Collisions
- sauri
- · Replies 7 ·
Electricity and Magnetism question
- matt85
- · Replies 3 ·
Electrical Basics: Understand Physics & Learn Equations
- spank_fusion
- · Replies 4 ·
Finding Normal Force in Diagram
- Hollysmoke
- · Replies 17 ·
Need Feedback on Centripetal Motion Lab Experiment?
- Tido611
- · Replies 1 ·
Calculating Centre of Gravity of a Lamina: A - B
- Benny
- · Replies 12 ·
Bulb Temperature using resistance
- hoseA
- · Replies 2 ·
Solve Hard of Hearing Question: Increase dB for Hearing Aid?
- emma123
- · Replies 1 ·
What Are the Unconventional Concepts Behind Mass Spectrometry?
- kentus
- · Replies 2 ·
What is the reaction of the floor of the elevator on the boy?
- rachael
- · Replies 3 ·
Solve a Simple Physics Problem for High School: Pelican and Falling Fish"
- playa007
- · Replies 2 ·
Convert Sun's Radiation Flux Density: 1.64 Langleys/Min - Easy Unit Conversion"
- badtwistoffate
- · Replies 2 ·
Simple question but still can't figure it outsound
- emma123
- · Replies 3 ·
How Is Intensity Calculated in a Two-Slit Interference Pattern?
- georgeh
- · Replies 6 ·
Physics book Request (Phy for Sci. and Eng.)
- dekoi
- · Replies 1 ·
Electric fields and electric potential
- Pioneer
- · Replies 2 ·
Why is centripetal force greater than static force in a spring mass experiment?
- Havoc2020
- · Replies 5 ·
Voltage/ electric field question
- donjt81
- · Replies 3 ·
A Block, a speaker and a spring
- Trista
- · Replies 3 ·
Potential difference and Kinetic energy
- donjt81
- · Replies 1 ·
What is the energy stored in the capacitor?
- donjt81
- · Replies 1 ·
Block sliding down an incline - Find the Work
- mb85
- · Replies 2 ·
Why does resonance in Kundts tube differ from theoretical calculations?
- Alec
- · Replies 14 ·
Understanding Sound Levels & Protectors
- emma123
- · Replies 2 ·
How Do You Calculate Work Done by a Variable Force Along a Displacement?
- Jacob87411
- · Replies 2 ·
Calculating Spring Compression from a Collision with No Friction
- atomant
- · Replies 6 ·
Understanding Orbital Motion with Polar Coordinates
- andrevdh
- · Replies 5 ·
HY 607: Finding the Angle for Resultant Force of Two Forces
- lektor
- · Replies 4 ·
Resistivity of a wire - AS coursework
- r0manticide17
- · Replies 5 ·
Another magnetic freild question can soemone help me
- kevinlikesphysics
- · Replies 3 ·
How Can You Calculate the Original Length of a Simple Pendulum?
- John O' Meara
- · Replies 1 ·
How Do You Calculate a Particle's Average Velocity?
- markow202
- · Replies 3 ·
Calculating the Intersection of Two Stones Dropped from a Cliff
- John O' Meara
- · Replies 1 ·
How Does Constant Power Affect Car Acceleration Times?
- sauri
- · Replies 2 ·
Stuck on this phase change question
- dan greig
- · Replies 1 ·
Equations & Angular Velocity for Rotational Forces
- johnny872005
- · Replies 2 ·