Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
How Is Average Force Calculated When Catching a Baseball?
- lochs
- · Replies 2 ·
Does vector projection distribute over addition?
- Poobel
- · Replies 6 ·
How Does a Spring's Compression Relate to Block Height and Work Done?
- InFiNiTeX
- · Replies 2 ·
What is the required force to keep a box from sliding on a frictionless ramp?
- Poobel
- · Replies 8 ·
Simpson's rule with 6 intervals from x=16 to x=22
- 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 ·
Finding the unknown voltage with a potentiometer circuit
- 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 ·
Young's modulus and key properties of steel for A-level 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 a formula for partial sums of (1.01)^n
- 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 ·
Will a solid sphere float if a hollow sphere of the same weight floats?
- 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 when rotation axis doesn't pass through the center of mass
- 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 ·
Ratio problem: brand Y refrigerators out of 100 sold
- 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 ·
Modular arithmetic with RSA and large power exponentiation
- 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 ·
Heat flow through a rod with varying cross-section
- Wiz
- · Replies 2 ·
Proving the L¹ norm is a norm and completeness of C⁰([-1,1])
- Neoma
- · Replies 3 ·
Tennis ball impulse at 45.4° striking and rebounding from ground
- 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 ·
Relativistic kinetic energy of electron from momentum
- 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 plate capacitor and point charge problems
- n3ro
- · Replies 2 ·
How Do You Calculate the Net Magnetic Field Between Two Wires?
- waywardtigerlily
- · Replies 2 ·
Force between hemispheres of a charged metal sphere
- 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 ·
Coulomb's law problem with charged clouds separated by stellar diameter
- Femme06Fatale
- · Replies 2 ·
Cartesian coordinates and torque
- RhysticGenesis
- · Replies 2 ·
How do you find out where a series converges
- stunner5000pt
- · Replies 4 ·
Double integral of √(x² + y²) over unit square using 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 ·
Planar curve where radius vector and tangent meet at fixed angle
- yoyo
- · Replies 5 ·
How to Determine Surface Charge Densities on a Conducting Cylinder?
- Gale
- · Replies 2 ·
How to design a resonance experiment with metal strips
- 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 ·
Finding coil turns from charge during electromagnet shutdown
- 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 ·