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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What is the thrust of the engine?
- NanoTech
- · Replies 4 ·
Which vehicle experiences the greater momentum change in a head-on collision?
- Xamfy19
- · Replies 3 ·
Thermal/mechanical/potential/kinetic energy help
- nemzy
- · Replies 2 ·
Electricity Circles question that's killing me
- Dragons Master
- · Replies 2 ·
Understanding the Force on a Current-Carrying Conductor: Explained
- adamg
- · Replies 2 ·
Back EMF in Motors Explained - Need Help?
- FcUk
- · Replies 2 ·
Analyzing Electrical Circuits: True and False Statements
- bob123
- · Replies 5 ·
Unanswered Questions about Imaginary Tides: Help Needed!
- holly
- · Replies 4 ·
Calculating Charge of Insulating Balls
- tandoorichicken
- · Replies 3 ·
In how many ways to answer a true-false test with 6 questions
- Kuja
- · Replies 3 ·
Find the Volume of xº Plane with 10kg and 15kg Masses
- Conor
- · Replies 17 ·
How Do You Solve These Calculus Differentiation Problems?
- mcintyre_ie
- · Replies 7 ·
What is the magnitude of the total momentum
- lollypop
- · Replies 2 ·
What is the charge of the particle being accelerated in a mass spectrometer?
- mrbling
- · Replies 2 ·
Are Kinetic and Potential Energies Equal in Simple Harmonic Motion?
- mindcircus
- · Replies 2 ·
Why Do Astronauts Experience Weightlessness?
- holly
- · Replies 11 ·
Egg drop: no parachutes or padding
- liljediboi
- · Replies 4 ·
How to Solve a Geometry Problem?
- thegame
- · Replies 3 ·
Program for writing equations / expressions
- exequor
- · Replies 3 ·
Calculating Momentum & Angular Momentum in a Magnetic Field
- eku_girl83
- · Replies 3 ·
How Can You Calculate Heat Transfer and Energy Costs in Various Scenarios?
- moonlit
- · Replies 1 ·
How Does a Silicon Thermistor Measure a Child's Temperature?
- Magna1
- · Replies 2 ·
Find Appropriate Angle for Forces in Free Body Diagrams
- jjiimmyy101
- · Replies 16 ·
Solving the Problem of Converging Lenses' Focal Point
- raiieanna
- · Replies 2 ·
How is this related to entropy?
- jlmac2001
- · Replies 10 ·
Climbing 1600 Stairs: Energy Loss & Walking Equivalent
- reena
- · Replies 2 ·
Charge on a mass by removing electrons
- athenaroa
- · Replies 2 ·
Another moment of inertia with possible answer
- jlmac2001
- · Replies 2 ·
Finding The Volume Of Solid Using Triple Integrals
- wubie
- · Replies 4 ·
Is this a center of mass question?
- jlmac2001
- · Replies 2 ·
Can You Explain How Heat Engines Work?
- UrbanXrisis
- · Replies 10 ·
Solving for Time and Distance in Two Cars Traveling at Different Speeds
- xyxaprilxyx
- · Replies 5 ·
Deriving Potential Energy from a Force Law
- AngelofMusic
- · Replies 2 ·
Calculating Velocity and Time for Vertically Thrown Stones
- Cummings
- · Replies 3 ·
Understanding the Determinant of the Product of Two 2x2 Matrices
- ilikephysics
- · Replies 2 ·
Solving Paul Tipler's Challenging Physics Problem
- franz32
- · Replies 8 ·
Solving a Physics Scenario: Good vs. Bad Guy in a Frictionless and Airless Ditch
- seohee
- · Replies 2 ·
Determine the change in internal energy of boiling water
- cowgiljl
- · Replies 2 ·
Double Slit Diffraction Problem
- Moxin
- · Replies 2 ·
Calculating Current in Parallel DC Circuit - Solving for I3
- TheMadCapBeta
- · Replies 2 ·
Which weight will upset this table
- Scott55
- · Replies 2 ·
Can You Solve This Equation? A Collection of Math Jokes and Sayings
- MC363A
- · Replies 3 ·
Help! How to Solve Math Methods Problem Involving Radio Transmitter & Railway
- Astronomer107
- · Replies 3 ·
How to Determine Transformation Parameters for Triangles in Geometry?
- Johnny Leong
- · Replies 6 ·
How Do You Calculate Potential Energy and Work in Physics Problems?
- nemzy
- · Replies 2 ·
Triple Integrals Over General Regions
- wubie
- · Replies 2 ·
Conservation of Angular Momentum
- Lomion
- · Replies 2 ·
Why is the electric field zero to the right of two parallel, charged plates?
- SparkimusPrime
- · Replies 8 ·
How is the net charge distributed on the inner surface of the outer sphere?
- SparkimusPrime
- · Replies 8 ·
Calculating Final Velocity of a Car Over a Ramp
- Drakon25th
- · Replies 4 ·
Troubleshooting the Average Value of a Function
- tandoorichicken
- · Replies 3 ·
Rotational Equilibrium and Dynamics
- Alethia
- · Replies 6 ·
Dielectric constant for a plastic kitchen bag?
- AngelofMusic
- · Replies 2 ·
How do I solve the integral of ln(x+2) using integration by parts?
- JanusII
- · Replies 3 ·
How do I perform the integral of sec^2(3x) tan^5(3x)?
- tandoorichicken
- · Replies 3 ·
Geometry-Ratios homework problem
- Dagenais
- · Replies 8 ·
Note: the two proofs are not the same!
- franz32
- · Replies 5 ·
Air-filled parallel-plate capacitor question
- Aerospace
- · Replies 2 ·
What is the magnitue of the average Force from the wall stopping it?
- nemzy
- · Replies 4 ·
A simple conversion question that im getting wrong
- nemzy
- · Replies 2 ·
Heigh Ho, Heigh Ho, Problems with Work, Y'Know?
- holly
- · Replies 7 ·
How Do Kinetic Energy, Work, and Power Interact in Physics Problems?
- nemzy
- · Replies 2 ·
Car, Coffee, and static friction
- KingNothing
- · Replies 3 ·
Finding Imaginary Numbers with Cosine of 3
- Zurtex
- · Replies 7 ·
Understanding Moment of Inertia for a Box: Calculations and Examples
- ilikephysics
- · Replies 3 ·
Understanding Charge and Current in a Series of Questions
- Spectre32
- · Replies 3 ·
How Does the Divergence Theorem Apply to a Vector Field on a Unit Sphere?
- jlmac2001
- · Replies 2 ·
How Do You Calculate the Range of a Ball Thrown from a Hot Air Balloon?
- xXshortyXx
- · Replies 4 ·
How Does Acoustic Radiation Pressure Exert Force on Objects?
- Demian^^
- · Replies 2 ·
Acceleration on an Incline: Calculating Net Acceleration and Final Speed
- RingWraith2086
- · Replies 3 ·
Really easy thing but i'm getting something wrong
- tgoot84
- · Replies 21 ·
Debye Potential and Jupiter encounter
- student1938
- · Replies 19 ·
What is the Coefficient of Kinetic Friction for an Inclined Object?
- RingWraith2086
- · Replies 2 ·
Potential & Kinetic Energy Calc: x0=3.2m to x1=2.8m | Help Needed
- Xamfy19
- · Replies 3 ·
A solid ball - kinetic energy and angular speed
- HandcuffedKitty
- · Replies 3 ·
Easy problem but i'm getting something wrong
- tgoot84
- · Replies 7 ·
Solving Momentum vs Energy Problem: Distance of Clay Parts
- derfrok
- · Replies 4 ·
Proving Triangle AEF = Triangle FBD: A Puzzling Problem
- ruud
- · Replies 2 ·
Simple Questions Part 2: Q32,33 & 31 - Help Needed!
- Security
- · Replies 2 ·
What is the correct answer to the electric strength problem?
- NINHARDCOREFAN
- · Replies 5 ·
How Do You Convert Watts into Kilowatt Hours?
- solaron
- · Replies 2 ·
Help with a couple of questions
- jlmac2001
- · Replies 2 ·
How Do Newton's Laws Apply to a Frictionless Pulley System?
- Swigs
- · Replies 2 ·
Analyzing the Forces & direction of friction
- AngelofMusic
- · Replies 2 ·
Troubleshooting Galvanometer Problems and Calculating Resistance | Expert Tips
- eku_girl83
- · Replies 2 ·
Help Solve My Non-Calculus Physics Homework Problem
- liliphys
- · Replies 2 ·
Challenging Mechanics Questions: Help Needed!
- Auron87
- · Replies 3 ·
What does it mean to find a formula as a function of temperature
- jlmac2001
- · Replies 4 ·
Help Solving Entropy Problem: Part A-D
- jlmac2001
- · Replies 2 ·
How Does Changing Plate Separation Affect Energy Stored in a Capacitor?
- eku_girl83
- · Replies 2 ·
Calculating Inductance of a Tightly Wound Solenoid
- karbear
- · Replies 4 ·
What are some ideas for building a car powered by Newton's third law?
- PaoMian
- · Replies 2 ·
Graphing the derivative of a graph
- ACLerok
- · Replies 2 ·
Is This the Correct Differential Equation for a Mass-Spring Oscillation Lab?
- formulajoe
- · Replies 3 ·
Physics Problem: Drawing Vector Diagrams
- BobbieN
- · Replies 2 ·
What Are the Latest Innovations in Superglue Materials?
- decibel
- · Replies 3 ·
Why isn't the force 1N times the gravitational constant?
- holly
- · Replies 7 ·
Help - Missing Step - Gas in a Tube
- Sol_Solved
- · Replies 2 ·
Completing the Square: Tips and Tricks for Solving Quadratic Equations
- Math Is Hard
- · Replies 2 ·
Calculating Resistance of Aluminum Cylinder
- Roary
- · Replies 2 ·