Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Calculating two masses colliding
- Denton
- · Replies 1 ·
What is the speed of the missile, relative to ship B?
- vachan
- · Replies 1 ·
How Does Charge Affect Force in an Electric Field?
- ahero4eternity
- · Replies 2 ·
Angular velocity as car passes by man.
- DocZaius
- · Replies 9 ·
How to Calculate Work for Lunar Lander Orbit Change
- sam2k2002
- · Replies 7 ·
Why Does Superposition Give Different Results in PSPICE?
- jesuslovesu
- · Replies 1 ·
Electric field induced in a ring
- hapax
- · Replies 1 ·
Force/Magnetism direction question (w/diagram)
- nophun6
- · Replies 5 ·
What is the surface gravity on this distant planet?
- sam2k2002
- · Replies 6 ·
Energy/ work problem set(last question )
- Moe*
- · Replies 2 ·
Need some direction please. Thermodynamics.
- travism123
- · Replies 8 ·
Application of properties of the light
- rojasharma
- · Replies 4 ·
What is the effect of increased spacecraft speed on astronaut's pulse rate?
- rojasharma
- · Replies 18 ·
How Does a Bullet Affect Pendulum Motion?
- pauln
- · Replies 1 ·
Find Magnetic Field of Parallel Conductors at Different Locations
- BunDa4Th
- · Replies 6 ·
Diffraction Grating: 520nm & 630nm Wavelengths, 6000 Lines/cm, m=0-2 Fringes
- rojasharma
- · Replies 7 ·
Nuclear reactions and their applications
- rojasharma
- · Replies 3 ·
Static Equilibrium of an automobile
- Seraph404
- · Replies 1 ·
What are the Boundary Conditions for Dielectric Interfaces?
- plmokn2
- · Replies 6 ·
Magnetic Fields Produced by Currents
- bobbworm42
- · Replies 1 ·
What beat frequency will the observer detect?
- mortho
- · Replies 4 ·
Explain Electron's Speed for Probing Nucleus
- rojasharma
- · Replies 4 ·
Atom H-2 Diagram: Label Quarks & Leptons
- rojasharma
- · Replies 7 ·
Anyone Taking Grade 12 Physics Through Ilc Or Has Taken In Past?help Needed
- rojasharma
- · Replies 10 ·
Acceleration after a Colission
- lacyme
- · Replies 2 ·
A charge falls from infinity to within r of another charge, find velocity.
- User1247
- · Replies 1 ·
How Much Water Must Flow Over the Grand Coulee Dam to Generate 2000 MW of Power?
- iamkristing
- · Replies 1 ·
Nuclear Fission Basics: Calculating Energy Released U-235
- rojasharma
- · Replies 5 ·
A woman carries a bucket to the top of a 40 m tower
- iamkristing
- · Replies 2 ·
Forces: acceleration with a sun yacht
- wegman14
- · Replies 4 ·
Images Formed by converging mirros
- jeahomgrajan
- · Replies 6 ·
Momentum Concervation and Collisions
- mr.quakers
- · Replies 4 ·
Inclined plane and force of friction
- dranseth
- · Replies 11 ·
A Simple Way to Measure Magnetic Fields
- cse63146
- · Replies 5 ·
Solving a Physics Problem: Confused About 16 Angle?
- lizology101
- · Replies 13 ·
How Is Work Calculated in Electric Fields?
- rojasharma
- · Replies 12 ·
How Can Momentum and Radial Force Help Solve a Collision Problem?
- fiestyman001
- · Replies 2 ·
Unit conversions and significant digits
- jwj11
- · Replies 6 ·
How to Calculate Current Distribution in a Circuit?
- jcpwn2004
- · Replies 3 ·
Is Traveling at the Speed of Light Impossible?
- rojasharma
- · Replies 6 ·
What is the rocket's initial upward acceleration?
- cookiekid20
- · Replies 1 ·
What Causes Two Voltage Peaks in Magnetic Induction Experiments?
- ashleyrose03
- · Replies 1 ·
Electric potential at center of circular arc
- cyberstudent
- · Replies 6 ·
Observing Light through Two Slits: Wave vs. Particle Theory
- rojasharma
- · Replies 1 ·
Is Direct Substitution Effective for Solving Linear Wave Equations?
- ~christina~
- · Replies 10 ·
How Do Relativity Effects Impact Age During Space Travel?
- rojasharma
- · Replies 5 ·
Derivation of an S.H.M. Equation
- fatboy_1989
- · Replies 2 ·
Radio Wave Separation of H2O from Salt Water: Q&A
- madchemist
- · Replies 1 ·
Magnetic Field Using Amperian Loops inside a wire
- Fusilli_Jerry89
- · Replies 3 ·
Parallel plate capacitor and charge density
- tony873004
- · Replies 2 ·
Ammeter Connections for Battery Current Measurement
- HeLLz aNgeL
- · Replies 5 ·
Moment of Inertia: 4 Spheres Connected by Rods in Square
- amm617
- · Replies 1 ·
Questions on electric potentials of systems and electrons.
- LostShadow
- · Replies 7 ·
Calculating RC-Constant of Coaxial Cable
- electricman
- · Replies 2 ·
Coefficient of Friction of a hockey puck
- panvietboy
- · Replies 9 ·
Difficult Eletrical angle force problem
- Shadowsol
- · Replies 2 ·
The Motion of the Center of Mass
- Penguins66
- · Replies 1 ·
Draw Freebody Diagram: 10+ Forces at Rest
- checkmarks
- · Replies 4 ·
How Do I Solve This Initial-Value Problem Correctly?
- morbello
- · Replies 4 ·
Calculating Maximum Height of a Child Swinging from a Rope
- kassy_in_the_sky
- · Replies 5 ·
What is 2x10-4cm converted to metres?
- Colin_m
- · Replies 3 ·
How Should a Spring Be Compressed to Launch Blocks to Specific Heights?
- cooltee13
- · Replies 8 ·
Find General & Implicit Solutions for dy/dx = e^-3y cos x (1+sin x )^2
- morbello
- · Replies 3 ·
Different ways that Log appears
- grscott_2000
- · Replies 3 ·
How Does Lowering Density Affect Trajectory?
- jillz
- · Replies 10 ·
What is the Distance Between Two Stones Dropped from a Well in One Second?
- myoplex11
- · Replies 2 ·
Simple standing wave question- not exactly sure why I can't get answer?
- ~christina~
- · Replies 7 ·
Solving the Mass Sliding Problem with Increased Height h
- kirste
- · Replies 1 ·
Find the frequency of the lowest note a piccolo can sound
- ~christina~
- · Replies 4 ·
Angular Momentum Lab: Impact of Dropping Disk Off-Center
- frasifrasi
- · Replies 4 ·
Solving the Expansion of the Crab Nebula
- Fizzicist
- · Replies 1 ·
Frequency of Sound in Wind: Firefighters and Sirens
- ~christina~
- · Replies 7 ·
What is the speed of the bat gaining on its prey in m/s?
- bastige
- · Replies 1 ·
Physics: doppler effect (observer & source in motion)
- bastige
- · Replies 1 ·
Electric Field Inside a Hydrogen Atom
- viperassasin
- · Replies 3 ·
Charging current - jumpstarting a car
- tony873004
- · Replies 2 ·
Equation for molar specific heat
- Metalsonic75
- · Replies 2 ·
Two small insulating spheres with radius
- viperassasin
- · Replies 2 ·
Easy problem that I'm a bit confused about.
- JJphysics83
- · Replies 1 ·
Calculating Friction Force on Two Accelerated Blocks
- buys.trevor
- · Replies 4 ·
Electric Circuits: Why Power Rating of 2x 1000-W Heaters in Series is Not 2000-W
- chantalprince
- · Replies 16 ·
Angular Displacement of bike pedals
- snowmx0090
- · Replies 4 ·
Proving Equation: tan^2θ - sin^2θ = tan^2θsin^2θ
- Spahrtacus
- · Replies 3 ·
Calculating Electric Field at 0.8m from Charges on x-Axis
- soul5
- · Replies 2 ·
What Angle Prevents a Cylinder from Slipping on an Inclined Plane?
- NAkid
- · Replies 1 ·
How Does Elasticity Affect Collisions in Baseball Physics?
- alexithymia
- · Replies 6 ·
Special Relativity: Photon emission by a moving atom
- Helgi
- · Replies 1 ·
Help with Experiment: How Packaging Prevents Egg Breakage
- kortayabs
- · Replies 3 ·
Coefficient of friction on a 45° waterslide ramp
- tbone413
- · Replies 5 ·
Linear Momentum and Collisions - True/False
- Melchior25
- · Replies 1 ·
Newton's Law & Gravitational F: Finding the Accl'n for a sphere
- BootyBabe
- · Replies 1 ·
Rocket and Gravitational Potential Energy
- kiwikahuna
- · Replies 7 ·
Potential Energy and Conservation of energy
- msattar07
- · Replies 3 ·
Newtons Law Problem: objects and pulleys
- wegman14
- · Replies 1 ·
Simple Physics Mass pulled by a Force
- c-murda
- · Replies 24 ·
Applying Kirchhoff's Rules to Solve Circuit Problems
- jcpwn2004
- · Replies 3 ·
Pressure Law - question about experiment apparatus
- slakedlime
- · Replies 2 ·
Finding g with a Compound/Physical Pendulum: Plotting and Calculating
- Pete2008
- · Replies 5 ·
Power particle-like object problem
- critch
- · Replies 1 ·
What is the Unknown Distance in a Lens Equation Problem?
- petern
- · Replies 2 ·