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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Waves & Sound: How deep is your well?
- internetimothy
- · Replies 6 ·
Momentum Problems: Help with 2 Problems and Energy Stored in Spring
- lucifer
- · Replies 3 ·
Does sodium bicarbonate function as an acid or a base?
- xLaser
- · Replies 10 ·
Conservation Laws Homework help
- Lorax
- · Replies 6 ·
How Does a Flywheel Power a 40 T Magnetic Field?
- Nylex
- · Replies 2 ·
Why Does an Object Fall 490 Meters in 10 Seconds?
- tman
- · Replies 5 ·
I'm so lost Volume and tension?
- shadow2006
- · Replies 9 ·
How to Calculate Phase Difference Between Two Sinusoidal Waves?
- SpeedBird
- · Replies 4 ·
Number Theory Question - Discrete Log mod (pq)^2.
- Chu
- · Replies 2 ·
Please help with these Quantum theory Qs please
- Yuelao
- · Replies 2 ·
Solving Hanging Sign Problem: Find Tension, Horizontal & Vertical Force
- strugglin-physics
- · Replies 3 ·
Calculating Volume Using Archimedes' Principle
- nix
- · Replies 2 ·
Please, still with rotating rigid body problem
- gaborfk
- · Replies 2 ·
What is the derivative of x^x and how to sketch sin(x)/x by hand?
- ponjavic
- · Replies 18 ·
Solve Astronaut Wrench Problem: Find x_2 from x_1, v
- tigerseye
- · Replies 4 ·
How to Solve Basic Physics Problems: Tension, Force, and Acceleration
- Raza
- · Replies 2 ·
Calculating Angle of Globe on Accelerating Train - Forces in Motion
- futb0l
- · Replies 4 ·
Volume of a object by being submerged
- mikezietz
- · Replies 3 ·
Solving Analysis Problems: Proving Real x & Showing f(x)=0
- matrix_204
- · Replies 4 ·
How Does Newton's Third Law Explain Our Forward Movement?
- UrbanXrisis
- · Replies 3 ·
What is the required force to accelerate a child on a sled at 1.12 m/s2?
- Rapta3
- · Replies 20 ·
Two Brainmelting Problems Save Me
- fizziksplaya
- · Replies 3 ·
Homework help: discrete schodinger eq. Energy Eigenstates?
- tiger_striped_cat
- · Replies 2 ·
HELP w/ coefficient of kinetic friction problem
- WCU
- · Replies 8 ·
Find Radial & Circumferential Strain in Incompressible Vessel
- chusifer
- · Replies 1 ·
Help with Fundamental Frequency problem
- Purduenub03
- · Replies 12 ·
Circuit Help (Parallel, finding IR1, VR1, etc )
- BigDanT
- · Replies 6 ·
Rolling without slipping and frictional force
- gcolombo
- · Replies 2 ·
What Is the Required Power for a Cable Car on a Slope?
- scan
- · Replies 2 ·
Solving Physics Problems: 25N Force, 2.5 kg Block, and 35deg Incline
- scan
- · Replies 6 ·
How to Prove the Moment of Inertia for a Spinning Cone?
- Warmoth
- · Replies 3 ·
What is the Kinetic Energy and Work Done for Separated Space Vehicle
- pinky2468
- · Replies 2 ·
Find Equation for Ideal Gas in Cube Container
- jamie_o
- · Replies 2 ·
What Went Wrong in Calculating Tensions in These Statics Problems?
- Shay10825
- · Replies 2 ·
What Are the Characteristics of Protonium?
- stunner5000pt
- · Replies 1 ·
Help Needed: Calculating Coal Delivery Rate with 60kW Motor
- steelcap
- · Replies 2 ·
Stuck on Tension on a Hanging Massive Rope
- disruptors
- · Replies 2 ·
Phase velocity and group velocity
- nuttyquark
- · Replies 2 ·
Conservation of Momentum of a uniform thin rod
- 7C0A0A5
- · Replies 4 ·
Two masses and a Gravitational field
- ++A++
- · Replies 2 ·
Finding Acceleration for Object on Equator
- GingerBread27
- · Replies 3 ·
Potential Energy of a Three-Particle System
- sizzler
- · Replies 2 ·
Calculating Revolutions for Weightlessness on a 15m Ferris Wheel
- DLxX
- · Replies 3 ·
Expand & Sum Binomial Series: f(x)= x+x^2
- DivGradCurl
- · Replies 9 ·
Is g Positive or Negative in Bernoulli's Equation?
- Skomatth
- · Replies 2 ·
Solving Calorimetry Ques: Molybdenum Specific Heat
- vg19
- · Replies 2 ·
Calculating Mass of Asteroid Given Moon's Size, Distance, and Orbit
- GingerBread27
- · Replies 2 ·
How Do You Calculate the Density Ratio of the Moon to the Earth?
- envscigrl
- · Replies 2 ·
Calculating Acceleration in a Pulley System
- eno
- · Replies 5 ·
Optics problem: electromagnetic theory
- cuti_pie75
- · Replies 3 ·
This time its a statics problem
- Cyrad2
- · Replies 2 ·
How Does a Decreasing Radius Affect the Speed of a Rotating Cylinder?
- gaborfk
- · Replies 1 ·
How Do I Solve These Physics Vector Problems?
- ravadongon
- · Replies 6 ·
How Do You Solve for a, b, and c in Polynomial Equations?
- aisha
- · Replies 8 ·
Thermodynamics - heating spoon and coffee
- mikep
- · Replies 14 ·
Calculate the distance from the center of the Earth
- envscigrl
- · Replies 2 ·
Solving 3 Simple Physics Problems
- mikezietz
- · Replies 9 ·
How Does Acceleration Affect the Period of a Simple Pendulum?
- cissablecat23
- · Replies 8 ·
Science Project Help: Periodic Table Game with Modified Board and 48 Questions
- actingbiz1
- · Replies 1 ·
How Do You Calculate Microstates for a Constrained Spin System?
- Nylex
- · Replies 1 ·
Troubleshooting Air Volume Increase: -3.5°C to 37°C
- mikep
- · Replies 9 ·
Fluids (Find the Force Exerted)
- Bcisewski
- · Replies 2 ·
How Do You Identify Resonance Structures for SO4^2- and H3PO4?
- nobb
- · Replies 3 ·
Projectile Motion Analysis: Calculating Safe Distance for a Swimmer in Training
- synchronicity
- · Replies 1 ·
Formula for mass up an inclined plane
- simmer_27
- · Replies 6 ·
Which Newton's law describes inertia is proportional to mass?
- no idea
- · Replies 2 ·
Calculate Exact Area b/w x-axis & Graph of y=7-8x+x^2
- mugzieee
- · Replies 8 ·
Prove this is a right triangle?
- aisha
- · Replies 7 ·
Solving Rotational Motion: Coin Rolling Up Inclined Plane
- PinkDaisy
- · Replies 2 ·
Confused about kenetic and potential energy problem
- mattysimins
- · Replies 5 ·
Complex Variables and Integration
- Ed Quanta
- · Replies 5 ·
Solve Electric Circuit Equation: Use Kirchhoff & Ohm's Law
- butz3
- · Replies 2 ·
Designing a Curved Exit Ramp: Angle Calculation for Speed & Radius
- ballahboy
- · Replies 2 ·
Does a net torque imply the presence of net force in a system?
- justagirl
- · Replies 2 ·
How Do You Calculate Tension in a Pulley System?
- Godad
- · Replies 2 ·
Finding angular acceleration for this prob
- ballahboy
- · Replies 4 ·
Solving the Wave Problem: Transmitted Wave Amplitude
- mlee
- · Replies 1 ·
What Is the Maximum Amplitude of a Wave Pulse?
- mlee
- · Replies 2 ·
Help with Periodic Table Game Project
- actingbiz1
- · Replies 2 ·
Solve a Simple Power Problem: Escalator Work Rate
- pinky2468
- · Replies 3 ·
What Mistakes Did I Make in Solving This Circuit Problem?
- needhelpperson
- · Replies 2 ·
Calculating F(3) and F(-4) for F(x)= -x^2+2
- Chikawakajones
- · Replies 10 ·
Calculating Coefficent of Kinetic Friction: Box on Floor
- (* ^_^ *)
- · Replies 3 ·
Time difference between two sine waves
- redshift
- · Replies 2 ·
Understanding the Simplified Solution of a Differential Equation
- relinquished™
- · Replies 2 ·
What Does Retarding Force Mean in This Context?
- Sanosuke Sagara
- · Replies 2 ·
Troubleshooting Alternating Series: Rearranging & Applying L'Hopitals Rule
- kdinser
- · Replies 2 ·
What is the Java notation for height in a 2D array?
- UrbanXrisis
- · Replies 2 ·
How to Solve Work Problems: Understanding the Concept and Calculations
- XenoFazz
- · Replies 2 ·
Calculating Moles and Net Heat in an Ideal Gas Cycle
- [rit]panfist
- · Replies 3 ·
Power and maximum power problem
- abot
- · Replies 6 ·
Solving Potter's Wheel Friction Problem
- check
- · Replies 2 ·
Help with centripital motion questions.
- DLxX
- · Replies 4 ·
Calculating Spring Compression and Velocity with Friction
- Markrosoft
- · Replies 3 ·
Solve Banked Curve w/ Friction: Formula Needed
- dqasem
- · Replies 2 ·
Gravitationnal potential of a sphere
- quasar987
- · Replies 9 ·
Line of Best Fit: Accuracy & Data Analysis
- JamesJames
- · Replies 2 ·
HELP Conservation of mechanical energy question
- abot
- · Replies 6 ·
What is the correct radius of the plane's loop?
- IGeekbot
- · Replies 3 ·
What is the maximum force on the vine during Tarzan's swing?
- Zlex
- · Replies 7 ·