Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Two-Dimensional Kinematics, Projectile
- Naeem
- · Replies 2 ·
Rocket Car Acceleration: Solving for a0 with Latest Materials and Technology
- ProBasket
- · Replies 1 ·
Statics/rotational dynamics:hanging sign
- LoN
- · Replies 2 ·
Dual sensitivity problem involving transducer (ECE)
- vptran84
- · Replies 2 ·
How Far Must You Be from a Tornado Siren for a 15 dB Decrease in Sound?
- Jayhawk1
- · Replies 3 ·
Three forces acting on object, find net force
- Naeem
- · Replies 1 ·
Question regarding the d Orbitals
- mathzeroh
- · Replies 11 ·
Physics Problem - Total Heat Loss in a House w/60 People
- JoshHull
- · Replies 2 ·
Designing a Bungee Ride: Calculating Energy & Springs
- audi476
- · Replies 1 ·
Find the mass of the meter stick
- med9546
- · Replies 2 ·
Rescuing a Child in Danger: Calculating the Optimal Path
- Naeem
- · Replies 2 ·
Baseball: finding trajectory of ball
- Naeem
- · Replies 2 ·
Why is the area of a cross section not pi * r^2 for a rod?
- ktpr2
- · Replies 2 ·
Circular Motion: Solving for Tension and Speed of a Bead on a String
- flower76
- · Replies 3 ·
Solving Math Problems: Step-by-Step Guide
- wundumbbutt
- · Replies 6 ·
For what values of x is │x^2-4│ not differentiable?
- gillgill
- · Replies 2 ·
What Is the Coefficient of Kinetic Friction for a Block on an Incline?
- insertnamehere
- · Replies 2 ·
Solving Rope Length with Changing Mass Problem
- shraps
- · Replies 4 ·
Calculating the Period of Oscillations of a Homogenous Disc
- stunner5000pt
- · Replies 3 ·
Line Integrals (I'm missing something here)
- FrogPad
- · Replies 15 ·
Resistance Questions: Car Battery, Starter Motor, Headlamps
- T7
- · Replies 2 ·
Numerical riddle 2+2=44+4=8 142+468=621 3762+8271=?
- LakeMountD
- · Replies 10 ·
Why Does 3762 + 8271 Equal What It Does?
- bblueblob
- · Replies 3 ·
Finding Net Torque in Cable Car Turnaround
- cavery4
- · Replies 3 ·
SAT II Physics Practice Questions: Force and Energy Concepts
- Nimmy
- · Replies 2 ·
Help with a Geometric progression.
- misogynisticfeminist
- · Replies 4 ·
Gaining Horsepower: Calculating Acceleration & Work at the Tracks
- whozum
- · Replies 15 ·
Expert Help with Integration: Understanding the Area Under a Graph
- liz
- · Replies 13 ·
Calculus Max. and Min. Question
- laker_gurl3
- · Replies 3 ·
Intensely Loud Question~H/w check
- SwAnK
- · Replies 2 ·
Find the vector and cartesian equations of a plane
- ~angel~
- · Replies 2 ·
Derivate of geometrical product
- Raparicio
- · Replies 4 ·
Rotational motion about a fixed axis
- cavery4
- · Replies 2 ·
Calculating Total Current in Cylindrical Wire at 60 Hz
- AC
- · Replies 2 ·
How Do You Calculate Electron Speed and Particle Charge in Physics Problems?
- bybliz
- · Replies 4 ·
PROBLEM -> Amount of Extension of Spring
- IntellectIsStrength
- · Replies 3 ·
Having problems with a thermo. cycle
- flythisforme
- · Replies 2 ·
Uncertainties/error propogation
- ElectricMile
- · Replies 2 ·
Calculating Work Done to Move Arm from Position 1 to 2
- Haroon Pasha
- · Replies 4 ·
Efficiency of refrigerator unit
- confused1
- · Replies 2 ·
Fourier Series Help: Isolated Pulses, Width "w", +-D
- AntonVrba
- · Replies 4 ·
How Do You Calculate the Final Concentration of a Mixed HCl Solution?
- mugzieee
- · Replies 2 ·
Simple question about definition of Mutual Inductance
- Lomion
- · Replies 2 ·
How Do You Find the First Term in the nth Bracket of This Number Sequence?
- misogynisticfeminist
- · Replies 2 ·
Solving System of Linear Equations: Where is the Mistake?
- Nylex
- · Replies 3 ·
Calculate Gravitational Self-Energy of the Sun
- stunner5000pt
- · Replies 6 ·
Ampere's Law: Constant Magnetic Field b/w Non-Coaxial Cylinders
- Merrank
- · Replies 2 ·
Euclid Math Contest: Grade 12 Student Writing April 19 Test
- MiniTank
- · Replies 8 ·
Convex Mirrors magnification help
- Soaring Crane
- · Replies 3 ·
Finding Heat Flow & Work for Brayton Cycle w/ Helium (2 Moles)
- sportsrules
- · Replies 2 ·
Dimensions of an ellipse region a dog wanders
- aisha
- · Replies 7 ·
How does light travel in a vacuum?
- !Live_4Ever!
- · Replies 10 ·
Is {a_n} Bounded Above by 3 in Calculus?
- JasonRox
- · Replies 2 ·
Force and Simple Dynamics: Dropped Tennis Ball
- Naeem
- · Replies 7 ·
Calculating Air Resistance: How to Solve for Work Without Using Mass?
- Terrance
- · Replies 10 ·
Solving Thermodynamics Problems with Helium
- sportsrules
- · Replies 2 ·
Solve Force & Buoyancy: 1000N to Lift Concrete Block Out of Water
- srfrgrl727
- · Replies 3 ·
Why V-engines Are Better Than In Line Engines?
- SHIVA SHANKAR.D
- · Replies 2 ·
Another Electromagnetic Induction Question
- Giuseppe
- · Replies 2 ·
Magnetic Reluctance: Correct Equation
- confusion321
- · Replies 2 ·
What is the Relationship Between Force, Power, and Work in a Particle System?
- sAXIn
- · Replies 5 ·
Multiple choice ? on center of mass
- srhly
- · Replies 2 ·
What Are the Requirements for Part B?
- Logistics
- · Replies 2 ·
How to Solve for CosA and T in a Conical Pendulum?
- sAXIn
- · Replies 2 ·
Maximizing Success on the Physics B AP Test: Any Tips?
- jjjsarnis
- · Replies 4 ·
Designing a toy rocket to be launched by a spring
- ProBasket
- · Replies 2 ·
Solving the Pushy Astronaut Puzzle: Newton's Third Law
- Naeem
- · Replies 4 ·
At What Depth in Fresh Water Is the Density 1% Greater Than at the Surface?
- srfrgrl727
- · Replies 3 ·
Prove Linear Dependence of x^2 + x + 2, x^2 -3x + 1 & 5x^2 -7x + 7
- Naeem
- · Replies 3 ·
Are These Functions Linearly Independent?
- Naeem
- · Replies 3 ·
Find the lowest frequency where the receiver is a node
- Physicsisfun2005
- · Replies 2 ·
Solving a Physics Problem: Finding the Right Units
- ProBasket
- · Replies 2 ·
Calculating the Amount of Ice Needed to Reach a Specific Temperature in Water
- Logistics
- · Replies 5 ·
Calculate Volume of Enclosed Region with Cylindrical Coordinates
- Imo
- · Replies 3 ·
Carnot refrigerator and work done
- sportsrules
- · Replies 2 ·
How Do You Find Negative Eigenvalues in Quantum Mechanics?
- skpang82
- · Replies 2 ·
Differential Equations: Orders Explained
- tandoorichicken
- · Replies 4 ·
Product rule in differentiation help
- UrbanXrisis
- · Replies 25 ·
Finding Heat Flow in a Brayton Cycle for Helium
- sportsrules
- · Replies 2 ·
Answer Geometric Optics Problem: Find Reflection Angle for Index > 1.42
- leolaw
- · Replies 12 ·
Solving the Force of Reverse Thrust on Mars' Polar Lander
- Nx2
- · Replies 4 ·
How Does Electromagnetic Induction Power a Bicycle Generator?
- Quantum Cat
- · Replies 1 ·
Solving Torque and Power Problems with Drywall and Rotating Platforms
- squib
- · Replies 13 ·
Area of Polar Curve Region: Finding the Error
- ILoveBaseball
- · Replies 2 ·
Calculating Vertical Support Forces on a Uniform Steel Beam
- ninjagowoowoo
- · Replies 4 ·
Understanding Photons: Query about v in Einstein's Equation | R.apaparioscios
- Raparicio
- · Replies 15 ·
How Does Fluid Friction Affect Motion on an Incline?
- Nenad
- · Replies 2 ·
Calculus - How fast is this distance changing?
- erik05
- · Replies 6 ·
Graph Functions: Features & Uses
- joejo
- · Replies 2 ·
Really Hard Circuit Question - With LINK
- scorpa
- · Replies 11 ·
Radius of He+ Ion in Bohr Orbit 3.0
- figs
- · Replies 2 ·
Straight-Line Graph: x/t2 and t or x/t Pairs for Plotting
- recon
- · Replies 3 ·
What Angle Does the Angular Momentum Vector Make with the Axle?
- pixelized
- · Replies 3 ·
Calculating Tension of a Rope for a Moving Sledge on an Inclined Surface
- Haroon Pasha
- · Replies 5 ·
Is the Function Differentiable and Continuous Based on Its Derivative?
- UrbanXrisis
- · Replies 7 ·
If someone can tell me about light
- Tsunami
- · Replies 7 ·
Power series solutions to diffeq
- Townsend
- · Replies 10 ·
Understanding Torque: Calculating Tension in a Uniform Beam System
- Angie913
- · Replies 14 ·
How Do You Calculate Momentum in Different Collision Scenarios?
- NoHeart
- · Replies 13 ·