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 required force to keep a box from sliding on a frictionless ramp?
- Poobel
- · Replies 8 ·
Help with a numerical Simpsons Rule
- JasonJo
- · Replies 3 ·
Calculating Potential at Point Above Uniformly Charged Square of Side 2a
- Phymath
- · Replies 5 ·
Simple Volume Problem: Solving for x and Rotating a Region around the Y-Axis
- mewmew
- · Replies 3 ·
Calculate the amount of food needed to walk a distance of 30 km
- jmandas
- · Replies 2 ·
Discover the Formula for Calculating Potential Difference with a Potentiometer
- eil2001
- · Replies 3 ·
I know im forgetting something simple
- bemigh
- · Replies 2 ·
What is the satellite's instantaneous velocity
- shorti2406
- · Replies 2 ·
Reaction time of Light Dependant Resistors
- oli_collins
- · Replies 2 ·
Solving 10 Ohm Resistor Problem: Min 3 in Series/Parallel
- Berg
- · Replies 2 ·
Calculate the gravitational force between these spheres
- the_d
- · Replies 2 ·
Find Equations for Differentials of 9y^2=x^3+3x^2 at (1,2/3), (-2,2/3), (-3,0)
- erik05
- · Replies 2 ·
Coefficient of kinetic friction on ramp
- UrbanXrisis
- · Replies 2 ·
Heat-Related Problem: Is Inverse Proportion True?
- mengshuen
- · Replies 2 ·
Calculating Maximum Height of a Ball Thrown at an Angle
- mugzieee
- · Replies 7 ·
Physics: conservation of energy and springs
- InFiNiTeX
- · Replies 3 ·
Solving Force and Motion Problems with Friction
- whatsmyname
- · Replies 2 ·
Steel: Learn About Its Properties & Uses | Joseph's Presentation
- JosephF
- · Replies 2 ·
Solving for Parallel Tangent Lines: A Confusing Example
- zenity
- · Replies 5 ·
Find initial velocity of the spaceship
- TyFelmingham
- · Replies 3 ·
How Do You Calculate the Limit of (2n-1)/(3n+1) as n Approaches Infinity?
- shan
- · Replies 5 ·
Finding General Formulas for Series: 1.01, 2.0301, 3.060401, 4.10100501...
- shan
- · Replies 4 ·
Find the Fake Coin: Weighing Strategy with 27 Coins in 3 Attempts
- Some_Student
- · Replies 2 ·
Percent Abundance of Br-81 in Bromine
- mugzieee
- · Replies 2 ·
Answer: Calculate Time for Heat Loss to Rise to Normal
- Kcoats
- · Replies 2 ·
General Physics 1: Calculating Force for Constant Speed
- Kp0684
- · Replies 2 ·
Deflection of electron in electric field
- blue_soda025
- · Replies 2 ·
External torque needed to keep a small rotating loop in motion
- heman
- · Replies 10 ·
How can I prove s(n+1) = t(n) + t(n+1) for all positive integers n?
- lvlastermind
- · Replies 5 ·
Probability and chance of failure
- Zach_C
- · Replies 3 ·
Acceleration and time of blocks with friction acting
- cde42003
- · Replies 3 ·
Debating Object Buoyancy: Hollow vs Solid Spheres in Water
- FlaMiNxSkullx05
- · Replies 10 ·
Echo-based Valley Width Calculation - Knowing the Speed of Sound
- Kdawg
- · Replies 2 ·
How Does a Proton's Path Change in a Magnetic Field?
- Jacob87411
- · Replies 10 ·
Angular Momentum: Constant Axis & Non-CM Axis
- elessar_telkontar
- · Replies 10 ·
Implicit differentiation and a bicorn curve
- erik05
- · Replies 4 ·
Evaluating Improper Integral of $\frac{x\arctan{x}}{(1+x^2)^2}$
- neik
- · Replies 4 ·
Solving Ratio Word Problem: ~36 Brand Y Refrigerators
- homegrown898
- · Replies 7 ·
Solving Spherical Charge Distribution Problems - Physics
- Gale
- · Replies 7 ·
Solve Temperature Problem: 8.7 Deg C
- Kcoats
- · Replies 2 ·
Which is the 9th term where do i stop adding?
- aisha
- · Replies 9 ·
How Does Changing Frequency Affect Capacitance in an AM Radio Tuner?
- airkapp
- · Replies 2 ·
Why? Series question easy but dont know what to write.
- aisha
- · Replies 2 ·
Solve Stoichiometry Problems with HCl and Marble
- DB
- · Replies 18 ·
What are the properties of a muonic atom?
- PhatPartie
- · Replies 2 ·
Calculate RMS Speed of Helium at 361K
- R.Harmon
- · Replies 2 ·
Disk speed NON UNIFORM and UNIFOR CIRCULAR MOTION
- sevens
- · Replies 3 ·
How Is the Net Charge Calculated in a Cube Within a Vertical Electric Field?
- Gale
- · Replies 8 ·
Maximum Energy transfer in Compton Effect
- PhatPartie
- · Replies 2 ·
Physics Questions: Frictionless Incline + Pendulum Speed
- convict11
- · Replies 4 ·
Why Does My Physics Book Use L/2 for Calculating Linear Acceleration?
- UrbanXrisis
- · Replies 3 ·
How Does Rutherford Scattering Explain Particle Detection at Specific Angles?
- PhatPartie
- · Replies 2 ·
Motion: How to Calculate Speed with Acceleration?
- Kamataat
- · Replies 5 ·
Clock/modular arithmetic anyone?
- JaeSun
- · Replies 1 ·
Lots of great physics info at Answers.com
- chesterdaly
- · Replies 2 ·
Elastic Collision: Find Speed of Protons After Collision
- shamockey
- · Replies 2 ·
Potential Energy of an Atom Due to Its Charge Distribution
- Hoofbeat
- · Replies 2 ·
Calculating Heat Flow Through a Rod: Step-by-Step Guide
- Wiz
- · Replies 2 ·
Proving Normality of ||.||_1 & Cauchy-Sequence & Completeness in C^0([-1,1])
- Neoma
- · Replies 3 ·
Impulse Help: Solving a Tennis Ball Problem
- Jayhawk1
- · Replies 4 ·
How much work is done by friction in this process?
- Jayhawk1
- · Replies 5 ·
What is the Formula for Newton's Law of Cooling?
- Physically Impaired
- · Replies 3 ·
Finding wave frequency by using a strobe
- primarygun
- · Replies 3 ·
Help relativity exam in in 5 hours
- nemzy
- · Replies 4 ·
How Does the Angle Affect Bead Stationarity in Rotating Circular Motion?
- kidia
- · Replies 2 ·
Do Waves Behave Differently in Various Scenarios?
- Jameson
- · Replies 2 ·
How Does Simplifying the Expression L√(3g/L) * L√(3g/L) Compare to 3gL?
- UrbanXrisis
- · Replies 2 ·
Parallel plates & Point charge ?
- n3ro
- · Replies 2 ·
How Do You Calculate the Net Magnetic Field Between Two Wires?
- waywardtigerlily
- · Replies 2 ·
Another Electrostatics Problem
- AKG
- · Replies 2 ·
Why is Sphere B Negatively Charged? Physics Explanation
- Soaring Crane
- · Replies 1 ·
One more Quantum Matrix question
- Ed Quanta
- · Replies 4 ·
How Can You Connect Four 5 Ohm Resistors for an Equivalent Resistance of 5 Ohms?
- paebo
- · Replies 13 ·
Proving Integral of f is 1 When x = 1/n
- stunner5000pt
- · Replies 12 ·
How do u graph these without using a graphing calculator?
- gillgill
- · Replies 2 ·
Electric Field of 90° Arc of 2 Wires w/ Uniform Charge - Q/πR^2
- Gale
- · Replies 4 ·
Express the area of an equilateral triangle as a function
- gillgill
- · Replies 5 ·
Master Coulomb's Law with Expert Help: Quiz Prep for Electric Force Problems!
- Femme06Fatale
- · Replies 2 ·
Cartesian coordinates and torque
- RhysticGenesis
- · Replies 2 ·
How do you find out where a series converges
- stunner5000pt
- · Replies 4 ·
Another quick please tell me if my logic seems correct (change of variables)
- ninjacookies
- · Replies 7 ·
Couple of electromagnetics questions
- formulajoe
- · Replies 6 ·
Using Newton's Laws to Escape a Frozen Lake
- moneyman4206
- · Replies 3 ·
What is the velocity of the boat relative to the water
- carltonblues
- · Replies 2 ·
Exploring the Geometric Property of a Planar Curve [gamma]
- yoyo
- · Replies 5 ·
How to Determine Surface Charge Densities on a Conducting Cylinder?
- Gale
- · Replies 2 ·
Practical Project Help : The Resonance of different pieces of metal.
- Acidvoodoo
- · Replies 8 ·
Geometry of Sphere: Find All Points on Circle in Sphere
- kevinalm
- · Replies 4 ·
[Physical Science] Finding Density, Mass, or Volume
- Jessi
- · Replies 3 ·
Solve Algebra Word Problem: x+1/x - 1/4 = x+3/x+2
- homegrown898
- · Replies 2 ·
Proving Inner Product Spaces w/ (1+x^2) Defined on V
- Oxymoron
- · Replies 2 ·
Calculating Decimals for Expressions
- dagg3r
- · Replies 2 ·
How far apart are two electrons in an electric field?
- Physically Impaired
- · Replies 3 ·
Comprehensive electromagnetic induction question
- adrianx
- · Replies 2 ·
How Do You Solve a Riccati Differential Equation?
- yoyo
- · Replies 4 ·
What is the tangential acceleration of a point
- RPDuece
- · Replies 7 ·
Calculating Density of a Dye in PMMA Sample
- Hypnotoad
- · Replies 2 ·
Determining Planck's Constant Using Diffraction Patterns of X-rays and Electrons
- Steph
- · Replies 2 ·
How Fast Will the Bowling Ball Swing at a 10-Degree Angle?
- monky
- · Replies 4 ·