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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Net Force of a charged particle (Coulomb's Law)
- Saladsamurai
- · Replies 9 ·
Does this graph is correct representing a sound wave?
- SciencePF
- · Replies 3 ·
Cannon Hits Cliff: Calculating Minimum Muzzle Velocity & Distance Past Edge
- Yahaira.Reyes
- · Replies 3 ·
Two men, a crate, and a set of stairs
- TFM
- · Replies 12 ·
Finding Components of Vectors in the xy Plane
- ff4930
- · Replies 7 ·
Solving for Revolutions: Electric-Generator Turbine
- rjimenez
- · Replies 1 ·
What is the maximum height of a rocket in free fall?
- spj1
- · Replies 6 ·
Solving 3 Forces and Acceleration of Object
- Go Angels
- · Replies 6 ·
Is there an additional force or stress put on the trailer jack?
- edword456
- · Replies 4 ·
Is the system in translational equilibrium?
- Oerg
- · Replies 4 ·
Two charged particles fired at each other.
- mellotron
- · Replies 1 ·
Velocity Vectors | True/False Answers
- am08
- · Replies 5 ·
How High Does Water Rise in a Diving Bell?
- Fizzicist
- · Replies 1 ·
Find the magnitude of the electric field in the capacitor
- titi07
- · Replies 1 ·
How Do You Calculate the Grating Spacing in a Diffraction Problem?
- physicsbhelp
- · Replies 9 ·
Current in a solution of NaCl ions.
- Goldenwind
- · Replies 4 ·
Finding the equivalent resistance PLEASE HELP
- BuBbLeS01
- · Replies 4 ·
Calculating Maximum Load Capacity of a Hydrogen-Filled Balloon
- anyone1979
- · Replies 6 ·
Acceleration Needed to Keep Block From Falling
- nightshade123
- · Replies 4 ·
Newton's Laws and an electron of mass
- nlb149
- · Replies 2 ·
How Fast is a Balloon Rising if a Dropped Coin Hits the Ground in 4 Seconds?
- fraserperry
- · Replies 7 ·
What Is the Difference Between Average Speed and Average Velocity?
- sprinter08
- · Replies 2 ·
Ferris Wheel: Find Direction of Passenger's Acceleration
- rsala
- · Replies 5 ·
Free Fall: Particle Velocity, Acceleration, Displacement
- StephenDoty
- · Replies 13 ·
What Happens Just Outside a Black Hole's Event Horizon?
- bjfcool
- · Replies 3 ·
HELP URGENT!"Help with Toaster Cost Calculation - URGENT!
- pinkyjoshi65
- · Replies 1 ·
Velocity with changing direction
- AshleyJayda
- · Replies 1 ·
Circular motion vector question
- joker_900
- · Replies 5 ·
Potential difference across a solenoid
- Angelos
- · Replies 2 ·
Measuring Mass of a Hanging Weight: Stephen's Question
- StephenDoty
- · Replies 1 ·
Current in a Wire: Density of Free Electrons
- cse63146
- · Replies 6 ·
Electric Potential of a Circular Rod
- Zythyr
- · Replies 4 ·
Physics & Math: Beyond Calculus for Subatomic Particles
- Gear300
- · Replies 6 ·
Understanding Electric Field Graph: An In-Depth Explanation
- Zythyr
- · Replies 3 ·
Question abou Simple Harmonic Motion
- jcsolis
- · Replies 2 ·
Electric Field of a Capacitor with asymmetric dielectric
- Mikey789
- · Replies 3 ·
How Do You Calculate Damping Coefficient in a Pendulum?
- jlew
- · Replies 4 ·
Solved: 2D Kinematics Help | Average Speed, Decrease in Velocity
- BitterSuites
- · Replies 10 ·
Optimizing Water Flow: Finding Maximum Mass and Rate of Change
- lgen0290
- · Replies 3 ·
Find the pebble's position, velocity, and acceleration
- tronter
- · Replies 3 ·
Moment of inertia of a hoop on an arm
- Integral
- · Replies 5 ·
How Is Gravity Calculated for a Dropped Object on the Moon?
- lbutscha
- · Replies 1 ·
Determining g from harmonic frequency and a pendulum
- vertabatt
- · Replies 3 ·
How Fast and at What Angle Must a Hawk Dive to Recapture Its Prey?
- Melchior25
- · Replies 1 ·
Projectile Motion with Neglected Air Resistance: True or False Statements
- Melchior25
- · Replies 2 ·
Magnitude & Direction of electric fields?
- daimoku
- · Replies 4 ·
Accuracy of Gravity: -9.8m/s/s +- _______m/s/s
- StephenDoty
- · Replies 3 ·
Thermistor relationship, linearizing (really easy)
- gRACK
- · Replies 2 ·
Electric field and point charge problem
- zinedine_88
- · Replies 1 ·
What Forces Act on a Ball Suspended from the Ceiling?
- lbutscha
- · Replies 1 ·
Projectile motion basketball question
- jj8890
- · Replies 9 ·
Calculating Volume of Earth Removed in Open-Pit Coal Mine
- lgen0290
- · Replies 4 ·
Can i please get a little help on this problem i dont think i did it right.
- davo
- · Replies 3 ·
How Do You Calculate the Speed of a Stone in a Sling?
- Melchior25
- · Replies 2 ·
Solve the Physics Problem: Astronaut Drops Camera on Moon
- lbutscha
- · Replies 5 ·
Circuit Analyses: Find E3 Given Diagram
- polymerase
- · Replies 4 ·
Piston Question that I do not understand
- LandOfStandar
- · Replies 1 ·
I thought conversions were simple
- indepth
- · Replies 29 ·
How Do You Solve for Vf2 in a Momentum Equation?
- physicsfreak9
- · Replies 4 ·
Time it takes an oscillating mass to reach a certain velocity
- Terp
- · Replies 10 ·
Entropy-any direction would be appreciated
- hils0005
- · Replies 1 ·
Homework problem - MasteringPhysics.com (electric potential)
- adam32386
- · Replies 1 ·
The Normal Force and Inclined Planes
- faunmia
- · Replies 6 ·
Airplane Flight Time Calculation with Prevailing Wind and Air Speed
- Alemayo1
- · Replies 2 ·
200kg Water Moved in 1min by 600W Pump
- looi76
- · Replies 1 ·
What Happens to Wire Resistance When Stretched?
- BuBbLeS01
- · Replies 2 ·
Calculate Current in Nichrome Wire with 11V Voltage
- BuBbLeS01
- · Replies 1 ·
Centripetal Acceleration of washer spin cycle
- CursedAntagonis
- · Replies 8 ·
Question on Harmonics involving Air Tube
- dgoudie
- · Replies 4 ·
Rotational Kinematics of a disk
- Batman4t
- · Replies 1 ·
Solve Rotational Dynamics Homework: Flywheel Stopping in 3 Minutes
- Lyphta
- · Replies 1 ·
Discover the Astonishing Answer: How Many Earths Can Fit Inside the Sun?
- torresmido
- · Replies 1 ·
Can Velocity Be Zero While Acceleration Is Not?
- am08
- · Replies 1 ·
Calculating Plane Speed from Shockwave
- DmX0rZ
- · Replies 15 ·
Wind Power Basics: Laws, Principles & Theories
- kateman
- · Replies 6 ·
Cesium Chloride Crystal Structure
- chemnerd
- · Replies 1 ·
Calculate the rotational inertia of the pendulum
- LandOfStandar
- · Replies 12 ·
How long does it take this transverse wave to travel along a string
- jcadams9
- · Replies 2 ·
Electric Flux Calculation for Oppositely Charged Circular Plates
- xcvxcvvc
- · Replies 1 ·
Solved: Potential Difference Between a & b
- Mhchurch4
- · Replies 1 ·
How to Calculate Potential Difference and Electric Field for a Point Charge?
- Mhchurch4
- · Replies 1 ·
Projectile Motion on an Incline
- blindside
- · Replies 7 ·
How Is the Equilibrium Radius Determined in Rotational Spring Motion?
- Abarak
- · Replies 5 ·
Biophysics problem - amino acid dipoles
- wfu113
- · Replies 1 ·
Calculating Initial Speed: Soccer Player Kicks Rock Off Cliff into Water
- blazin247nc
- · Replies 10 ·
Total energy of a spring-mass system (harmonic motion)
- Terp
- · Replies 6 ·
Circular Momentum Homework: Find Radius of a Particle in Counterclockwise Motion
- TS656577
- · Replies 1 ·
Find Pendulum Period & Frequency: 35 Oscillations in 12 Secs
- lexi_love
- · Replies 4 ·
How Does Inserting a Dielectric Change Capacitor Voltage?
- arod2812
- · Replies 3 ·
Solve for the time and initial velocity of a ball rolling off a table?"
- TS656577
- · Replies 5 ·
What Is the Position and Displacement of a Watermelon Seed in 3D Space?
- TS656577
- · Replies 7 ·
Potential Difference: 4.2 C Charge & 4.5 MJ Energy Boil/Vaporize
- Mhchurch4
- · Replies 1 ·
Finding Torque Applied to a Charged Rod in an External Electric Field
- silvashadow
- · Replies 5 ·
Finding Potential Difference Change with Dielectric Insertion in Capacitor
- arod2812
- · Replies 7 ·
Why Does My Projectile Motion Calculation Keep Failing?
- TS656577
- · Replies 4 ·
What is the vertical height between two climbers?
- afcwestwarrior
- · Replies 9 ·
Challenging Vector Problem: How Can Beetle 2 Reach the New Location of Beetle 1?
- Cathartics
- · Replies 4 ·
Find the Height of a 90 Degree Notch in a Block of Metal
- steadenator
- · Replies 2 ·
What is the Weight of a Satellite in kN?
- mortho
- · Replies 13 ·