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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Surface charge densities on two conducting plates.
- theBEAST
- · Replies 5 ·
Finding the Polar Form of a Complex Number Using Euler's Relation
- aaj92
- · Replies 10 ·
Three objects on a hanging pulley system
- Koscher
- · Replies 2 ·
Solve Stopping Potential when 250 nm Light Hits Zinc Plate
- Tsunoyukami
- · Replies 2 ·
Finding the electric potential energy
- sameasabuv
- · Replies 2 ·
Variable Acceleration - Clueless
- ssjcory
- · Replies 9 ·
Calculate Point Charge Force on Line Ab | Static Electricity Homework
- ChunkymonkeyI
- · Replies 2 ·
Capacitors Problem: find potential differences
- hofferry
- · Replies 5 ·
Car Collision Problem: Determining Location and Speed at Collision
- Math_Monster
- · Replies 1 ·
Thermo cycles with only T and mol
- bmartz
- · Replies 1 ·
Can Calculus Prove Average Solar Irradiance is a Quarter of Total?
- Dr.Doom
- · Replies 1 ·
What type of integral is this and how do I solve it?
- Sekonda
- · Replies 7 ·
Uncertainty in Energy-Time Relation for Atomic Transitions
- StephenD420
- · Replies 15 ·
Why Is Voltage Not Zero at Infinity in This Electrostatic Scenario?
- jehan60188
- · Replies 2 ·
Measuring emissivity of material based on reflection
- lavalamp
- · Replies 2 ·
Decay of Electric Field between two plates
- ZedCar
- · Replies 6 ·
A quick expectant value question
- StephenD420
- · Replies 13 ·
Forces of a Hammer Acting On a Nail With constant acceleration
- LoveHOPEpeace
- · Replies 3 ·
Distance of Electrons with Electrostatic Force
- kgal
- · Replies 4 ·
Projectile Motion Homework: Finding Initial Speed and Flight Time
- kinslow31
- · Replies 1 ·
Ball falls in a truck loaded with sand
- 10bunny10
- · Replies 1 ·
Solving 2nd Order ODE with x(0)=0, x'(0)=0
- S_Flaherty
- · Replies 4 ·
Finding Optimal Angle to Hit Target 600m Away with 30m Hedge
- Panthenole
- · Replies 15 ·
Proton release inside a parallel capacitor Find velocity
- conov3
- · Replies 3 ·
What are the expressions for radiation and convection heat transfer?
- moatasim23
- · Replies 12 ·
AP Physics problem help - centripetal motion
- stuplato
- · Replies 12 ·
Calculate Speed for Motorbike Crossing a 40m Wide River Using a 53 Degree Ramp
- PonderingMick
- · Replies 6 ·
Projectile Motion: A boy throw a ball above a barn roof
- archcos
- · Replies 5 ·
Applying conservation of mass to a falling plywood
- polka129
- · Replies 8 ·
What is the Maximum Error in Predicting Solar Eclipse Times on Jupiter?
- sparkle123
- · Replies 2 ·
Can Ray Diagrams Explain Refraction through a Slab?
- sparkle123
- · Replies 4 ·
Electric Field of a Straight Wire (now with the attachment)
- The Head
- · Replies 1 ·
Apocentre and Eccentricity of a Comet's Orbit
- PChar
- · Replies 4 ·
Conservation of momentum in an inelastic collision with friction
- DanicaK
- · Replies 5 ·
Are my KVLs incorrect for this circuit?
- pyroknife
- · Replies 1 ·
Electric Field of a Straight Wire at a Particular Distance from Wire
- The Head
- · Replies 1 ·
Electric field inside a slab of with constant charge density.
- theBEAST
- · Replies 3 ·
How does the Electric Potential change when -q goes to -2q?
- durhamisnuts
- · Replies 1 ·
Projectile motion of two bullets on inclined plane
- drawar
- · Replies 12 ·
Window Washer plummets 47 Floors. How did he survive?
- piggyxchu
- · Replies 1 ·
Finding tension and acceleration in a 3 weight, 3 pulley system
- SovXietday
- · Replies 3 ·
A screen for detecting electrons
- C6ZR1
- · Replies 34 ·
Is C the Correct Choice for Electroscope Question?
- Miike012
- · Replies 3 ·
Thermodynamics problem-using PV=nrt
- pyroknife
- · Replies 1 ·
Instantaneous Velocity: drag racing problem
- chinnie15
- · Replies 7 ·
Calculating Final Velocity of a Truck Under Braking
- Michaela H
- · Replies 1 ·
Guass' Law (Conducting Cylinder)
- mrshappy0
- · Replies 16 ·
Relationship Between Angular Velocity and the Spring Constant
- dbakg00
- · Replies 8 ·
Electric field strength for a radial field.
- gabloammar
- · Replies 13 ·
Find mag. of net electric field at the center
- mdawg467
- · Replies 1 ·
Question about friction and normal force
- Supernejihh
- · Replies 2 ·
Find Electric Flux through cube's side, point charge on corner
- DieCommie
- · Replies 10 ·
Projectile motion and initial speed problem
- Mdhiggenz
- · Replies 1 ·
2D Kinematics - Projectile Motion Question
- 5minutes
- · Replies 1 ·
What do I do for these problems ?
- whataboutbob
- · Replies 4 ·
Final velocity of a rock and how it compares to work
- ja!mee
- · Replies 7 ·
How Do You Calculate Average Velocity in Projectile Motion?
- Mdhiggenz
- · Replies 10 ·
Two hard physics problems (Projectile motion and gravitation), for me
- physicsisgrea
- · Replies 1 ·
Help finding the maximum height
- SalsaOnMyTaco
- · Replies 1 ·
Pendulum projectile momentum question
- jackneedshelp
- · Replies 17 ·
Solving Infinite Cylinder Homework w/ Electric Field Inside Void
- funoras
- · Replies 1 ·
How to find energy output of a wave over the course of one hour.
- rzlblrt417
- · Replies 1 ·
Trouble working out the GM product of Earth: u = GM.
- namtip
- · Replies 3 ·
Boiling above and below supercritical pressure
- JJBladester
- · Replies 1 ·
Calculate force from wind on kite
- getty102
- · Replies 1 ·
What is the Mass of m4 Given Tensions and Forces?
- zaper
- · Replies 3 ·
Electric Field at Center of Square.
- Rome_Leader
- · Replies 1 ·
Force of Friction w/o Coefficient of Friction Given
- stehat
- · Replies 1 ·
Need help combining various equations for a single problem
- ZPoston
- · Replies 1 ·
Kinetic energy of a ball when falling (projectile motion)
- paperdoll
- · Replies 5 ·
A simple problem that will take one minute to answer (:
- lNVlNClBLE
- · Replies 3 ·
An object attached to three springs
- jd12345
- · Replies 3 ·
Linear thermal expansion, a space between two metal rods
- thatdudeuknow
- · Replies 1 ·
Rayleigh Criterion related to the eye
- wmiddlebrook
- · Replies 1 ·
Electric Force Calculation with Two Point Charges on Axis - Step by Step Guide
- gotpink74
- · Replies 16 ·
2D Projectile Motion problem, is there a better solution?
- Habeebe
- · Replies 2 ·
Analyzing Forces on a Moving System: Newton's Second Law in Action
- mathmannn
- · Replies 1 ·
% error over many, many measurments
- fisselt
- · Replies 8 ·
What is acceleration due to gravity of earth?
- 6spdtls
- · Replies 1 ·
Help with project - Freudenstein equation
- 8point1
- · Replies 6 ·
Electric Fields in Equilateral Triangle
- longcatislong
- · Replies 1 ·
Question about resistors in Parallel
- 4evanaday
- · Replies 1 ·
Where Should a Proton be Placed to Create an Electric Field at the Origin?
- RET80
- · Replies 5 ·
What is the Vector Sum of Two Vectors with Equal Magnitude and Different Angles?
- Flash70
- · Replies 2 ·
Calculating Minimum Force to Prevent Slipping on an Inclined Plane
- zaper
- · Replies 10 ·
Calculate Charge of Object A: Mass 100g, Force 0.35N
- Miike012
- · Replies 2 ·
Mass of Object in Uniform Electric Field
- gotpink74
- · Replies 2 ·
Find "g" Value on Distant Planet: 6.501m/s^2
- climb515c
- · Replies 1 ·
Electron velocity in Electric Fields
- C6ZR1
- · Replies 27 ·
Thermal Energy Transfer: A Gas Heated at Constant Volume and Pressure
- calculusisrad
- · Replies 1 ·
Throwing a ball: Motion in one direction
- lNVlNClBLE
- · Replies 34 ·
Throwing a ball: Parabolic motion
- lNVlNClBLE
- · Replies 5 ·
Why Did the Wave Interference Proof Simplify This Way?
- QuarkCharmer
- · Replies 4 ·
Why is this equation dimensionally correct?
- Copse
- · Replies 6 ·
Uncertainty in ln(R) Calculation in R: Is (uncert in R)/R Correct?
- NachoNovo
- · Replies 1 ·
How Much Power is Lost in a Copper Wire in a Series Circuit?
- chawki
- · Replies 5 ·
Electric field due to a nonconducting sphere
- cesaruelas
- · Replies 1 ·
Angular displacement is not a vector
- spaghetti3451
- · Replies 1 ·
Number of Resistors needed for a maximum power
- chawki
- · Replies 3 ·
Electric field stregth between charges
- GRAvit__
- · Replies 4 ·