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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How Do You Calculate the Spring Constant and Natural Length of a Spring?
- StudentNeedsHlp
- · Replies 2 ·
Solving for Mica Thickness in Double Slit Interference Arrangement
- Callisto
- · Replies 3 ·
What is D in the Moment of Inertia Formula?
- SsUeSbIaEs
- · Replies 2 ·
Voltage Drop in Circuits with Parallel Components
- physman
- · Replies 4 ·
Why Does the Expectation Value of Momentum Vanish in a Quantum Bound State?
- einai
- · Replies 2 ·
Circuits with Kirchhoff's rules
- SparkimusPrime
- · Replies 11 ·
Friction on an incline 2 problems
- Polak
- · Replies 3 ·
Satellite orbital radius Question
- angelical_kitten
- · Replies 9 ·
Need help with Daughters physics homework
- frank
- · Replies 5 ·
Why Do I Get Different Values for I2 in My Circuit Calculation?
- cytokinesis
- · Replies 4 ·
So the sheet of paper should be placed 24 cm from the mirror.
- mustang
- · Replies 2 ·
Dispersion - Chromatic Abberation
- apples and pears
- · Replies 2 ·
Inelastic Car Crash problem. HELP
- UniGal
- · Replies 2 ·
Rotational Dynamics and torque, easy problem
- new324
- · Replies 2 ·
Solving Horrible Homework: Can You Help Nellie Newton?
- holly
- · Replies 11 ·
Calculating g on an Unfamiliar Planet Using a Simple Pendulum
- lollypop
- · Replies 11 ·
Rotational Kinematics and Energy Problem.
- new324
- · Replies 6 ·
Stuck on Electric Potential and Capacitors Problems?
- moonlit
- · Replies 6 ·
Find Net Magnetic Field & Direction - Quick Easy Q
- Spectre32
- · Replies 4 ·
Conservation of angular momentum (hard)
- cristina
- · Replies 5 ·
How Do You Calculate the Angular Acceleration and Torque of a Merry-Go-Round?
- cristina
- · Replies 10 ·
How much energy is needed to melt a 50kg snowman at -2 degrees Celsius?
- Simple_Simon
- · Replies 2 ·
How Does Friction Affect the Motion of Blocks and a Pulley System?
- cristina
- · Replies 6 ·
Analyzing Rotational Motion with Newton's Second Law
- cristina
- · Replies 4 ·
Understanding Inelasticity: Explaining Kinetic Energy Loss in Clay Balls
- psruler
- · Replies 4 ·
How Is the Equation of Constraint Derived for a Disk Rolling Inside a Parabola?
- mindcircus
- · Replies 2 ·
Just needing a little help with physics and springs
- soon2bsmart
- · Replies 5 ·
Linear Algebra - Dimension, Basis
- discoverer02
- · Replies 3 ·
Finding the Radius of a Spinning Rotor: Can You Help Me Solve This Problem?
- delta_mu
- · Replies 4 ·
Elasticity Problem: Uniform Rod Stretched Under Its Own Weight
- Dr.Brain
- · Replies 25 ·
Understanding Final Velocity: A Beginner's Guide
- poloplaya2008
- · Replies 4 ·
Electrostatic force problem help with vector parts
- Rockdog
- · Replies 4 ·
Kinetic energy and where it rotates
- ShawnD
- · Replies 5 ·
Help: Factorizing Polynomial p(x) = x^6 + x^4 + x^2 + 1
- expscv
- · Replies 5 ·
Finding the Height of a Two-Dimensional Completely Inelastic Collision
- PhysicsPhun
- · Replies 4 ·
Simple harmonic motion homework
- divyaushadam
- · Replies 3 ·
Solving Entropy and Energy Transfer in a Rigid Tank with Argon Gas
- bdiddy
- · Replies 3 ·
Finding Principal Root of \sqrt[3]{8i}: Stuck at Arctan?
- MikeH
- · Replies 2 ·
Why Are Improper Integrals Undefined?
- tandoorichicken
- · Replies 2 ·
What is the force constant of the spring in this physics lab experiment?
- lollypop
- · Replies 6 ·
Calculating Rotations and Linear Acceleration in a Flywheel System
- PhysicsPhun
- · Replies 14 ·
Math Help: Finding Intersection of sin(x) and 2x/pi | Solving Inequalities
- expscv
- · Replies 11 ·
True or False: Car Collision Kinetic Energy and Rest
- PhysicsPhun
- · Replies 5 ·
How Does a Roller Coaster Affect Scale Readings?
- Saad
- · Replies 4 ·
How far back up will the guy recoil?
- ussjt
- · Replies 4 ·
Forces and Motion Challenging Qs
- Saad
- · Replies 2 ·
Calculate Time Difference for Two Rays of Light in an Optical Fiber
- raging_hippo
- · Replies 2 ·
Physics Help: Solving 3 Forces, Friction, & Tow-Bar Force
- lotusbloom
- · Replies 2 ·
Maximum amplitude of oscillation of a block
- Mac13
- · Replies 2 ·
How Is Friction Calculated for a Scrambler Car That Stops After 10 Meters?
- pineapple629
- · Replies 3 ·
Electrostatic force problem help with vector parts
- Rockdog
- · Replies 3 ·
Creating an Ohmmeter: Solving a HW Problem Using Kirchov's Laws
- jnol6056
- · Replies 4 ·
Solving for ln(-e), (-1)^i, and (2i)^1+i in Rectangular Form
- ilikephysics
- · Replies 2 ·
How Does a Small Change in Voltage Affect the Power of a Heater?
- cseet
- · Replies 2 ·
Crane problem (reaction forces)
- JamesL
- · Replies 3 ·
Calculating Induced EMF in a 5.56m Steel Beam Dropped from 3.97m
- Aerospace
- · Replies 3 ·
How Do You Calculate Satellite Orbits and Friction Factors in Physics?
- hyen84
- · Replies 6 ·
How Do You Calculate Change in Kinetic Energy for an Elastic Collision?
- psruler
- · Replies 5 ·
Is the Emf in a Coil of 100 Turns 0 When B Field Decreases from 1.0 T?
- tandoorichicken
- · Replies 2 ·
What is the current in the other parallel wire when one carries 100A?
- tandoorichicken
- · Replies 2 ·
Total internal reflection diagram
- phy
- · Replies 2 ·
How Does Increasing Track Incline Affect NASCAR Race Speeds?
- Saad
- · Replies 4 ·
Integrating tan(3x) using substitution method?
- tandoorichicken
- · Replies 2 ·
Could someone give me an idea for a proof of this
- stunner5000pt
- · Replies 5 ·
How can I simplify (n+3)!/(n+1)! using the property of factorials?
- Blade
- · Replies 2 ·
What is the difference between average and final velocity?
- poloplaya2008
- · Replies 2 ·
Calculating Average Binding Energy per Nucleon and Decay of Free Neutrons
- SteveoFitz
- · Replies 3 ·
Rotational motion of a car's tires
- ryanl
- · Replies 2 ·
Quantum Mechanics: Eigenvaules, and orthogonality
- Baggio
- · Replies 2 ·
Calculating Forces, Moments, and Angular Speed in a Rotational System
- Rebel_Yell
- · Replies 4 ·
Resistance & Tolerance: Calculating Total Values
- UrbanXrisis
- · Replies 3 ·
How many four-digit numbers contain no repeating digits and are even?
- tofu
- · Replies 2 ·
Current from 2.2 Micro F Capacitor
- cseet
- · Replies 2 ·
Sarah Asks: How Does Adding Resistors in Parallel Affect Circuit Current?
- Skipperchrldr
- · Replies 2 ·
Help 3 well separted conductin spheres
- belleamie
- · Replies 3 ·
Work Done on 50.0-kg Cylinder Up 3-m High, 6-m Ramp
- Format
- · Replies 4 ·
Trig Substitutions: How to Use & Benefits - Help
- expscv
- · Replies 2 ·
Two Questions, one very complicated
- KingNothing
- · Replies 21 ·
Find the phase and group velocity of three plane waves
- frankR
- · Replies 1 ·
Dipole in electric field, capacitor
- burak_ilhan
- · Replies 2 ·
Help with some trigonometry problems please
- mathzeroh
- · Replies 11 ·
Series circuit and total resistance
- UrbanXrisis
- · Replies 7 ·
How do I find out the capacitor?
- cseet
- · Replies 12 ·
Question about reactions and the strong force
- curious george
- · Replies 1 ·
Master L'Hospital's Rule: Solving Limits of (1/sin x) - (1/x)
- ACLerok
- · Replies 16 ·
I'm trying to find max height of a projectile
- starlight1834
- · Replies 4 ·
Measuring Lightbulb Temperature: Spectroscopy and Thermocouples
- raging_hippo
- · Replies 2 ·
Calculating Distance Moved by Boat with a Boy Aboard
- misstoi21
- · Replies 2 ·
What Is Induced EMF in Electro-Magnetic Induction?
- dirk diggler
- · Replies 2 ·
Find Chapter Summaries for Fifth Business
- Trogdor
- · Replies 4 ·
What distance does the boat move
- misstoi21
- · Replies 9 ·
Why Is Path 3 Challenging in This Induction Problem?
- Saffire
- · Replies 2 ·
How Do I Calculate the Speed of a Box with Friction Involved?
- TheBlackHole
- · Replies 8 ·
What is the gravitational force on the satellite?
- lollypop
- · Replies 2 ·
Find Distance of Separation for Magnetic Repulsion of Two Wires
- Aerospace
- · Replies 6 ·
Calculating Power Loss in a High Voltage Transmission Line
- SparkimusPrime
- · Replies 3 ·
Projectile Mass Calculation: 275m/s vs 145g at 325m/s
- ineedhelp
- · Replies 5 ·
How Can Thermal Sources and UV Index Help in Science?
- PhYsics_Girl011
- · Replies 9 ·
Re:Statistics: Applications of sampling thoery
- SparkimusPrime
- · Replies 1 ·