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 Sum of a Series with Sigma Notation
- xLaser
- · Replies 8 ·
Question on Gravity Keplers Laws?
- ++A++
- · Replies 4 ·
Is this conservation of momentum?
- Cyrad2
- · Replies 3 ·
High Jump on Mars: Calculating the Athlete's Height
- Dragoon
- · Replies 3 ·
What is the speed of a bullet fired into a stationary wooden block?
- hulk
- · Replies 2 ·
When Do Lines in Space Not Intersect?
- Windwaker2004
- · Replies 2 ·
What is the Escape Speed Formula and How Do I Use It to Solve Problems?
- envscigrl
- · Replies 2 ·
Proving a force is conservative (via path integrals)
- cyberdeathreaper
- · Replies 2 ·
Calculating Upward Support Force on a Rigid Beam
- guru
- · Replies 2 ·
Calculating Speed and Time on a Frictionless Roller Coaster
- Clari
- · Replies 3 ·
What are the solutions to ln(z) = 1 and ln(-e^2)?
- Claire84
- · Replies 5 ·
Valence Bond question (Chemistry)
- el_hijoeputa
- · Replies 4 ·
Learn How to Calculate Projectile Force for Your Project - Helpful Tips Included
- mocfive
- · Replies 4 ·
Periodic Table Game Project: Find the Mystery Element!
- actingbiz1
- · Replies 4 ·
Trolley-trolley system force problem
- primarygun
- · Replies 2 ·
Circular motion problem. Help appreciated.
- KnowledgeIsPower
- · Replies 1 ·
What is the magnitude of angular acceleration upon release?
- justagirl
- · Replies 3 ·
How Is Average EMF Calculated in a Rotating Coil?
- Romperstomper
- · Replies 3 ·
How far can the rocket go trough space?
- sony
- · Replies 18 ·
Integral problem: landing this
- redshift
- · Replies 2 ·
Can't Solve This Rigid Solid Problem? Let's Figure It Out!
- Feynmanfan
- · Replies 3 ·
Calculating Work for Compressing Helium Gas at Constant Pressure and Temperature
- Spectre5
- · Replies 2 ·
Proof of limit involving square root
- courtrigrad
- · Replies 6 ·
Anyone have a clear definition of how to do a cross product?
- Rocko
- · Replies 2 ·
Infinite-Finite Potential Well
- AKG
- · Replies 2 ·
Impulse and Momentum of a falling student
- Bcisewski
- · Replies 3 ·
Tension in a hanging massive rope
- Heart
- · Replies 3 ·
Solving Friction Force and Coefficient on a 17 kg Box on a 35 Degree Incline
- shrtweez13
- · Replies 4 ·
Solving for the Day on Planet X - Help!
- dudgey
- · Replies 3 ·
Solving Rotational Dynamics Problems with Torques & Acceleration
- Electro
- · Replies 2 ·
Help with Physics Problem: Calculating Force of Friction
- noste275
- · Replies 2 ·
How Can You Calculate Acceleration in a Two-Weight Pulley System?
- MattF
- · Replies 2 ·
Induced EMF and a square copper loop
- Physics_wiz
- · Replies 10 ·
Moment of inertia of a wagon wheel
- boedi_hehe
- · Replies 2 ·
Thermodynamics Homework Help: Finding Final Temperature in a Water-Ice Mixture
- Corneo
- · Replies 4 ·
Calculating Minimum Ball Speed for Safe Passage through Rotating Windmill Blades
- mini_mia
- · Replies 3 ·
Finite Math Help: Ratio of A to B for 100% Nutrition
- demongrl2204
- · Replies 3 ·
How Do You Calculate the Radial Force on a Hinged Stick?
- justagirl
- · Replies 4 ·
How Does Rocket Propulsion Work?
- the4thcafeavenue
- · Replies 2 ·
Calculating Forces on Sliding Box
- Tanya Back
- · Replies 6 ·
Explain why the electric field strength is zero
- MightyMeanie
- · Replies 3 ·
Inertia and friction: The tablecloth trick
- no_brainer
- · Replies 2 ·
How do I prove this? [Linear Algebra]
- AKG
- · Replies 3 ·
Solving Coefficient of Friction Error on Webassign
- polarized
- · Replies 3 ·
Kinematics with electric forces
- nemzy
- · Replies 2 ·
Frictionless cylinder yet chain wraps around it
- pitchharmonics
- · Replies 6 ·
Are my answers right? (Calculus YAY )
- FancyNut
- · Replies 6 ·
Optimizing Productivity: Linear Programming for All-Easy's Production Goals
- franz32
- · Replies 7 ·
How to Calculate Muzzle Speed in an Inelastic Collision?
- AeroFunk
- · Replies 3 ·
Centripetal force yo-yo problem
- gilboy64
- · Replies 6 ·
Steel bridge - increase dimensions by 5
- yxgao
- · Replies 2 ·
A bubble question - thermal physics
- gorge
- · Replies 2 ·
Drop in Pressure Over A Given Distance
- koomba
- · Replies 4 ·
Chemistry - Quantities in Chemical Reations
- Ruth
- · Replies 2 ·
How Do You Solve Interacting Systems Physics Problems?
- quick
- · Replies 4 ·
Solve Pulley Mass Q&A: Find Mass of Pulley Given Blocks' Acceleration & Tension
- NotaPhysicsMan
- · Replies 13 ·
Solving a Plank Problem: Find the Distance x?
- nix
- · Replies 6 ·
What Distance is Required to Stop a Car Moving at 50 m/s?
- Soaring Crane
- · Replies 3 ·
Red Rope Tension: Does Wheel Movement Matter?
- jjiimmyy101
- · Replies 6 ·
Is This a Compton Scattering Example of a Gamma Ray Photon?
- stunner5000pt
- · Replies 2 ·
Earth's Orbital Speed Around the Sun
- Dragoon
- · Replies 4 ·
Help with Strain: Moving Elevator & Cable Stress Questions
- Tycho
- · Replies 2 ·
Solving the Mystery of Racing Cans of Broth Down a Ramp
- puravida
- · Replies 2 ·
Solve AP Physics Problem: Reflection & Refraction at a Boundary
- HashBrown
- · Replies 2 ·
Help with an equilibrium problem
- graphic7
- · Replies 2 ·
What is the force constant of the web?
- Faiza
- · Replies 2 ·
What is the impact of a cylinder on the force needed to tow a car up an incline?
- Tycho
- · Replies 2 ·
Perfect Crystal Brittleness: Fact or Myth?
- bchl85
- · Replies 15 ·
Simple harmonic motion (4 questions)
- jin
- · Replies 2 ·
Roller coaster drop physics problem
- Dragoon
- · Replies 2 ·
Calculate this height for aluminum column
- lmf22
- · Replies 5 ·
Why is My Concept Wrong for A Uniform Solid Disk Rotating?
- CartoonKid
- · Replies 6 ·
Find area between y=Sin x and y=Cos x
- chjopl
- · Replies 8 ·
Centripital Acceleration Question
- pinky2468
- · Replies 2 ·
Show whether S-omega is SC, CC, LPC, or compact
- synergy
- · Replies 2 ·
Is the Reaction Between Na and H2O Correctly Balanced?
- dg_5021
- · Replies 3 ·
Factorials: Simplifying Expressions & Convergence Tests
- FancyNut
- · Replies 3 ·
Help:Equilibrium & Angular Momentum
- buffgilville
- · Replies 4 ·
Brain Buster: Solving the Minimum Angular Velocity for a Thrilling Carnival Ride
- Dragoon
- · Replies 3 ·
Velocity/acceleratio in one dimension question
- FancyNut
- · Replies 14 ·
Avg Velocity Calculation: San Antonio-Houston & Back
- pseudonewtonian
- · Replies 11 ·
Projectile motion homerun question
- IGeekbot
- · Replies 2 ·
Kinetic friction on an incline problem
- -Justin-
- · Replies 3 ·
HELP:moment of inertia/angular momentum
- buffgilville
- · Replies 2 ·
Finding K Value for One-to-One Functions
- matrix_204
- · Replies 2 ·
X/y intercept for translations of f(x)
- roger
- · Replies 2 ·
Calculating Speed, Acceleration & Force on Take-off of 600kg Aeroplane
- Turkish
- · Replies 5 ·
Webpage title: Calculating Centripetal Force in a Sliding Mass Problem
- pulau_tiga
- · Replies 6 ·
Calculate Work Friction in Figure 8-16 | Walker2 8.P.002
- tony873004
- · Replies 3 ·
What are the properties of open sets in X x Y for a continuous projection map?
- sparkster
- · Replies 3 ·
How Do You Solve Difficult Engineering Statics Problems?
- ODU
- · Replies 2 ·
Solving Oscillary Motion: Half Max Speed at 2.25 cm Amplitude
- Cyrad2
- · Replies 3 ·
How Do Canoeists A and B Coordinate Their Arrival Using Relative Motion?
- grace lotz
- · Replies 2 ·
Solving a Java Program that Prints Prime Factors of Numbers
- ek
- · Replies 1 ·
What is the Sound Intensity at 7.1 Meters?
- yankeesfan08
- · Replies 2 ·
How Fast Must a Golf Ball Travel to Avoid a Windmill Blade?
- NotaPhysicsMan
- · Replies 12 ·
Maximum height of a uniform vertical column
- physicsss
- · Replies 2 ·
Triangle Formula: Isocolese Angle Measurements
- IndyAndy
- · Replies 2 ·
Conservation of Energy and satellite
- phy
- · Replies 4 ·
Changes in Mechanical Energy for Nonconservative Forces
- Bri
- · Replies 9 ·