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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Two uniformly charge spheres are firmly fastened
- Xaspire88
- · Replies 3 ·
How Do You Solve for Variables in Vector Addition Equations?
- DoktorD
- · Replies 4 ·
Find 3rd Component of Y Velocity for Projectile Question
- jbutl3r25
- · Replies 3 ·
Im stuck: Energy in rotational motion
- Edwardo_Elric
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Calculate Force Applied: Y=1/2at^2 Solution
- fubag
- · Replies 6 ·
What is the moment of inertia for small blocks clamped to a light rod?
- Edwardo_Elric
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What is the asteroid's acceleration in unit-vector notation?
- tjcreamer9
- · Replies 2 ·
Why Do My Physics Calculations Keep Giving Incorrect Results?
- Lorelyn
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Uniform Acceleration/Projectile Motion
- barnaby
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Elastic collision speed and time problem
- fizzzzzzzzzzzy
- · Replies 1 ·
How Do San Francisco's Cable Cars Work Mechanically?
- splac6996
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Two 1.0-g beads are charged .?
- mikebc
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Conservation of Energy and Centripital Acceleration
- Sirkus
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Kirchhoff's second law having exams soon,
- Kushal
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Gauss' Law (Why the opposite sign?)
- PFStudent
- · Replies 4 ·
Space Station and motion sickness
- eanderson
- · Replies 10 ·
Where is the center of mass and black hole in this space system?
- Ertosthnes
- · Replies 3 ·
What force is needed to keep the box at rest on an inclined plane?
- map7s
- · Replies 9 ·
Static Friction - starting motion
- surfinusa555
- · Replies 3 ·
Free Body Diagram and tension force
- random101
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What Is the Earth's Acceleration Toward a Falling Student?
- map7s
- · Replies 4 ·
Integral problem on electric potential
- venom_h
- · Replies 1 ·
Calculating Drag Forces on Arcs for Engineering Project
- SkydiverChris
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What is the force exerted by the shuttle-rocket engines during launch?
- map7s
- · Replies 3 ·
Coefficient of kinetic friction of force sensor
- map7s
- · Replies 2 ·
How Far Does a Bullet Travel When a Gun Recoils 2mm?
- kateman
- · Replies 5 ·
Solving Inclined Plane w/ Frictionless Box: Find Accel & Force
- map7s
- · Replies 5 ·
Linear impulse and linear momentum
- krnhseya
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What is the tangential speed of the ball?
- Smessy
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Dynamics Questions: Spring Scale and Fire Helicopter
- rabedes
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How Far Does a Snowball Travel After Rolling Off a Roof?
- ptpatil
- · Replies 7 ·
Projectile Motion Homework: Plane Speed, Decoy Release & Displacement Equations
- Sympathy
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Electric potential calculation
- indigojoker
- · Replies 12 ·
Uniform angular acceleration - degrees per second?
- BlueSkyy
- · Replies 4 ·
Velocity of a mass being pulled across a level surface
- ttk3
- · Replies 1 ·
Tension question Help, this homework is due midnight tonight
- pinkpanda02
- · Replies 4 ·
Find speed and acceleration of truck
- 012435
- · Replies 8 ·
Work Done to Stop 1590 kg Car from 82 km/hr
- chaotixmonjuish
- · Replies 8 ·
How Does Launch Angle Affect Slingshot Range and Velocity?
- physics_wannabe
- · Replies 3 ·
Rotational inertia of particle system
- snoggerT
- · Replies 3 ·
Net Force on a 850 kg Car Moving Right at 1.44 m/s
- willingtolearn
- · Replies 3 ·
Work of a child going down a slide
- delecticious
- · Replies 1 ·
How Does Friction Affect the Distance a Block Slides on an Elevated Track?
- delecticious
- · Replies 1 ·
Solving Unknowns for 10 N Force and 3.0 kg Box
- xCanx
- · Replies 1 ·
Testing Ohm's Law: Everyday Items & Possible Errors
- breeniu123
- · Replies 1 ·
How Fast Does a Released Mass Travel After Being Stretched by Springs?
- kdm06
- · Replies 3 ·
Solving for Water Flow Distance Under Faucet
- momogiri
- · Replies 2 ·
Hocky puck vel/displacement/acc
- DarkTangent
- · Replies 1 ·
:-$ Calculus Based Physics: Newton's Laws Problem
- johnsonandrew
- · Replies 5 ·
Nuclear Reactions and Symbol Notation
- leah0084
- · Replies 2 ·
HELP Friction on Ice involving weight
- imadagron89
- · Replies 2 ·
1998 Electricity FR Answers Needed
- fourteen_two
- · Replies 1 ·
Find the ratio of the frequency of the damped oscillator
- kreil
- · Replies 1 ·
Need Help On Uniform Motion Question please
- cherryrocket
- · Replies 5 ·
AP Physics 2-D trajectory problem
- DyslexicHobo
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What Tension Must Ellen Maintain to Steady the Piano Descent?
- klm
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Work and frictional force on a Sliding Box
- danni7070
- · Replies 1 ·
How Far Did Big Bertha's Shell Hit During WWI?
- jbutl3r25
- · Replies 6 ·
How Does Refraction Help Calculate the Depth of a Pool?
- Huskies213
- · Replies 1 ·
Questions about x and y components of its change in momentum
- witeruna
- · Replies 1 ·
Constructing a Standing Wave Interference Pattern
- nblu
- · Replies 1 ·
Calculating Wind Speed for City A to City B Trip
- fubag
- · Replies 1 ·
Understanding Fighter Pilot Forces: Normal Force vs. Weight Ratio
- eanderson
- · Replies 11 ·
How Does Projectile Angle Affect Range and Distance?
- SharkFin39
- · Replies 1 ·
Verify my calculation, bending moment torque
- WhiteHawk
- · Replies 7 ·
Charge on a bead given the Electric Potential
- julianne
- · Replies 2 ·
Solving Momentum and Impulse Homework Problem
- Niles
- · Replies 1 ·
Distinguishing between different waves.
- nblu
- · Replies 4 ·
Lux Lumens and Watts per square meter
- Deleted member 74205
- · Replies 1 ·
Gravitationtrouble setting up equation
- Saladsamurai
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How Do I Calculate Currents in a Circuit with Different Resistances?
- Chantry09
- · Replies 8 ·
How Do I Derive the Equation for Theta in a Tension Problem?
- narsasistickx
- · Replies 1 ·
Magnitude of torque on a current loop
- ovoleg
- · Replies 3 ·
Fluid Dynamics: Cylindrical Bucket, Water Flow & Height Increase
- momogiri
- · Replies 1 ·
Freefall, is the answer really 20 ?
- EvilBunny
- · Replies 3 ·
How Do You Calculate the Center of Mass in a Three-Body Celestial System?
- Ertosthnes
- · Replies 1 ·
What is the Radius of a Satellite's Circular Orbit Around Earth?
- BuBbLeS01
- · Replies 4 ·
Finding Average Speed and Velocity for a Round Trip
- jedjj
- · Replies 3 ·
Question: Impulse and Force on a Vertical Window Struck by a Stream of Water
- kateman
- · Replies 7 ·
A Satellite in Sun-Synchronous Orbit
- ColdFusion85
- · Replies 4 ·
Ball being thrown against a wall
- turnip
- · Replies 10 ·
Solving Hydraulic Lift & Friction Force Problems
- ascll
- · Replies 2 ·
Newton's Laws Questions: Solving for Force on a 3kg Block on an Incline
- graten2go
- · Replies 6 ·
Car Radial and Tangential Acceleration
- JeYo
- · Replies 4 ·
Max Velocity for Banked Road Problem
- jrmed13
- · Replies 1 ·
Why Is Calculating Tension in a Frictionless Pulley System Confusing?
- johnsonandrew
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Solving Kinematic Problem: Object Thrown From 50m High Building
- EvilBunny
- · Replies 5 ·
Acceleration of Book on Incline: Forces & Friction Analysis
- Vii
- · Replies 1 ·
Calculating Normal Force Acting on Car at Point B
- BuBbLeS01
- · Replies 1 ·
Work & Kinetic Energy Homework Solution
- sheri1987
- · Replies 6 ·
How Much Force Can Be Applied Before a Penguin Slides Off a Sled?
- ace214
- · Replies 5 ·
Force Analysis of a Pulley System with Inclined Plane and Hanging Masses
- B-80
- · Replies 4 ·
Crossing a River: Boat Direction and Time Calculations
- nealh149
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Power of Energy Transfer: Solving a 3D Vector Problem
- eraemia
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What percentage of the gas propellant in the completely filled propuls
- thatgirlyouknow
- · Replies 4 ·
Incline Plane / Friction Problem
- Destrio
- · Replies 6 ·
How can I apply statics principles to solve a problem with unknown forces?
- scotthands
- · Replies 1 ·
Horz./vert. components of force
- bigtymer8700
- · Replies 3 ·
Finding Tension and Acceleration: Coefficient of Friction Problem
- splac6996
- · Replies 6 ·