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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Centripetal force in London Eye
- Masafi
- · Replies 2 ·
Finding the magnitude of the eletric field of a uniformly charged rod.
- ILoveCollege
- · Replies 1 ·
Relationship between coefficients of linear and volume expansion
- madmartigano
- · Replies 2 ·
The maximum deceleration of a car
- Judas543
- · Replies 1 ·
Projectile motion- Deriving the right formular
- majormuss
- · Replies 1 ·
Magnitude of an Electric field on a point by 2 charged spheres
- KayleighK
- · Replies 7 ·
How High is the Cliff Based on Projectile Motion?
- majormuss
- · Replies 1 ·
What are the units of the constant k in the particle's velocity function?
- erok81
- · Replies 7 ·
Net Electric Field due to 2 different charges
- Ahmad1129
- · Replies 2 ·
Units of constants a, b, c in the parabola equation y=ax²+bx+c
- mistalopez
- · Replies 4 ·
Coulomb's Law and net electric field
- yb1013
- · Replies 3 ·
Coulomb's Law and the net electric field
- yb1013
- · Replies 2 ·
Calculating Speed and Acceleration of Second Hand on Town Clock
- Muneerah
- · Replies 5 ·
What is the wave speed in a brass wire
- Batman354
- · Replies 1 ·
Nonuniformly charged semicircle
- pittmed80
- · Replies 1 ·
Electric current in ionized gas with ions and electrons
- penandpaper
- · Replies 2 ·
Understanding Centrifuge Acceleration on Mercury
- cdlegendary
- · Replies 6 ·
Calculating Electric Field at Midpoint Between Two Charged Disks
- Puchinita5
- · Replies 4 ·
Kinematics and Newtons 2nd law
- phillyj
- · Replies 5 ·
How Do You Calculate the Friction Needed to Stop a Sliding Box?
- katem
- · Replies 1 ·
Calculating Coefficient of Thermal Expansion for a Rod
- Indy2424
- · Replies 5 ·
Wave equation under a Galilean transform.
- Johnny Blade
- · Replies 1 ·
Center of mass of a bent wire with L = 0.740 cm
- squintyeyes
- · Replies 4 ·
What Is the Correct Calculation for Angular Speed in a Centrifuge Problem?
- Muneerah
- · Replies 5 ·
Solve Lost Equations: Bus + Student Acceleration
- Technicolour
- · Replies 3 ·
Finding expression for mass with tension, gravity and point charges
- wildredhead
- · Replies 4 ·
Finding motor power lifting 400 kg at constant speed
- majormuss
- · Replies 4 ·
Gravitational lines of force for two equal point masses?
- ILoveCollege
- · Replies 4 ·
Satellite orbital speed and period at 11000 km altitude
- Muneerah
- · Replies 5 ·
Power and Energy of a motor problem
- majormuss
- · Replies 2 ·
Uniform Circular Motion of a tire
- Muneerah
- · Replies 1 ·
What is the magnitude of the average force that the air bag exerts on the driver?
- squintyeyes
- · Replies 7 ·
Net electric field-whats wromg with this?
- nothingatall
- · Replies 7 ·
How Can a Train Travel 1km Optimally by Accelerating and Braking?
- philok
- · Replies 1 ·
Speed of masses connected by pulley before heavier mass hits ground
- squintyeyes
- · Replies 2 ·
Calculating Impact Speed After Distracted Driving
- IronBrain
- · Replies 3 ·
Brownian motion rms speed and random walk distance for particles
- jasminstg
- · Replies 1 ·
The point where the electric field between two charged spheres is zero
- bandit101
- · Replies 4 ·
Rocket Acceleration: Calculating Speed and Altitude
- mullets1200
- · Replies 3 ·
Projectile motion, deriving equation
- break
- · Replies 3 ·
Sin i / sin r graph from ray through glass block
- ZedCar
- · Replies 4 ·
Limitations of Photoemission in Electroscope Charging
- Badrakhandama
- · Replies 5 ·
Force of Friction: 0.45N, Coefficient: 0.0382
- italystaly
- · Replies 1 ·
Questions from our Physics Periodical Exam
- yik-boh
- · Replies 9 ·
Transverse wave through a medium
- clickyclicky
- · Replies 1 ·
Dynamics with Polar coordinates
- Larrytsai
- · Replies 2 ·
Vector Addition: Calculating Bird's Speed in Southerly Direction
- cixelsyD
- · Replies 2 ·
Sound waves and the doppler effect
- seb26
- · Replies 2 ·
Slope of an Energy with Friction Graph?
- Londoncalling
- · Replies 3 ·
What Are the Tension Forces in Suspended Structures?
- cary1234
- · Replies 2 ·
Finding The Volume of An Air Bubble Just Before It Breaks Surface
- jasminstg
- · Replies 1 ·
How Do Sound Waves Behave in a Closed vs. Open Tube?
- narutodemonki
- · Replies 1 ·
How Far and Fast Does Tina Drive to Pass David?
- mullets1200
- · Replies 1 ·
Does increasing momentum while keeping velocity constant decrease mass?
- Gorn
- · Replies 1 ·
Trying to figure out how to solve a formula for the energy of light
- kmnghoover
- · Replies 1 ·
Pressure/temperature energy question
- kavamo
- · Replies 30 ·
Law of Gravitation: Calculate Astronaut Weight 6.37 × 106 m Above Earth
- majormuss
- · Replies 1 ·
Energy of light with frequency 4.3×10^14 Hz using E=hf
- TheChaplain
- · Replies 2 ·
Total internal reflection in a glass prism submerged in water
- Glen Maverick
- · Replies 1 ·
Why Is the Binding Energy of a Satellite Equal to Its Total Energy?
- rpullo
- · Replies 1 ·
How Do Current Sources Affect Thevenin and Norton Equivalents?
- mathman44
- · Replies 10 ·
Crater Depth and Height Relationship
- IB tired
- · Replies 1 ·
Electric field on the axis of a uniformly charged ring at 1.15 cm
- ILoveCollege
- · Replies 1 ·
What Are the Correct Answers to These Physics Multiple Choice Questions?
- key
- · Replies 1 ·
What is the force applied by the e-brake to stop the car in 3 seconds?
- Shaley
- · Replies 1 ·
Dynamics Question Grade 11 Level
- kylepetten
- · Replies 2 ·
How Does Newton's Second Law Apply to Tug of War on Ice?
- Shaley
- · Replies 2 ·
Where does the 0.5 come from in kinematic equations
- checker
- · Replies 6 ·
No, E can be constant regardless of the distance between two charges.
- aloshi
- · Replies 8 ·
Collision problem /what internal forces?
- Jerbearrrrrr
- · Replies 2 ·
Solving Momentum Question: Tennis Ball vs Putty Ball
- kylepetten
- · Replies 2 ·
What is the dimension of c3 in s=cs cos(c4t)
- dovec
- · Replies 2 ·
Electric field inside a cavity within a uniformly charged sphere
- semc
- · Replies 5 ·
Tetherball velocity and period with 20.9° rope angle
- tigerwoods99
- · Replies 20 ·
Maximum person weight to walk 20 m beam on two walls
- tigerwoods99
- · Replies 6 ·
Calculating C for a Freely Falling Satellite
- didimimi2266
- · Replies 2 ·
Capicatance of spherical capacitor
- songoku
- · Replies 12 ·
What is the resultant amplitude at X?
- songoku
- · Replies 10 ·
Equilibrium from the ceiling. Solve using cosines
- tigerwoods99
- · Replies 10 ·
Calculating Precession Rates in 4C and 4D
- Cosmossos
- · Replies 1 ·
Conservation question really quick
- squintyeyes
- · Replies 4 ·
Determining initial velocity and instant velocity
- Norfonz
- · Replies 1 ·
Calculating Distance from Constant Force: A Kinematics Problem
- magnifik
- · Replies 4 ·
Trigger system for rubber band powered helicopter
- lilsus
- · Replies 7 ·
How Fast Must a Basketball Player Jump to Achieve a 98.2 cm Vertical Leap?
- grewas8
- · Replies 1 ·
Passenger train braking to avoid freight train collision
- ts21121
- · Replies 1 ·
What is the Thevenin Equivalent for a Circuit with a Voltage-Controlled Source?
- mmmboh
- · Replies 3 ·
How Does Relativity Affect the Perception of Time Between Supernovae?
- doublemint
- · Replies 1 ·
Electric Forces: Find Separation Force
- anonymousphys
- · Replies 3 ·
Help check over my answers to these simple questions
- SoulInNeed
- · Replies 2 ·
What Forces Act on a Car Turning on a Circular Track?
- squintyeyes
- · Replies 7 ·
What materials do I need for an electromagnet science fair project?
- Alieneater
- · Replies 2 ·
Thermodynamcics quesstion (Diagrams)
- Macclourin
- · Replies 3 ·
Percent change in tension to achieve specified change in frequency
- Jennifer_ea
- · Replies 2 ·
Transverse wave on string with given period and initial conditions
- dwong
- · Replies 4 ·
Where Do You Commonly Encounter Electromagnetic Radiation of 5.00 x 10^14 Hz?
- Ryan B
- · Replies 8 ·
What is the cause of the pull on the charged metal plate?
- sphyics
- · Replies 2 ·
Superpositions of electrostatic forces
- raindrops
- · Replies 2 ·
Calorimetry Problem: Cooling 90.0 g of Iron in 85.0 g of Water
- sdoug041
- · Replies 5 ·
Bouncing ball and angular velocity
- sting10
- · Replies 12 ·