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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Kirchhoff's Laws and current through resistors
- Vashti
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Finding the charges on surfaces (hollow spheres)
- rela
- · Replies 1 ·
How Fast Was the Ball Going When It Left the Incline?
- kofmelk
- · Replies 1 ·
How Does the Normal Force Affect Dynamics in Different Frames of Reference?
- radagast_
- · Replies 4 ·
Force and Impulse physics problem
- Mandy89
- · Replies 6 ·
Finding the electric force on each sphere
- rela
- · Replies 1 ·
Can someone clarify this please? Confusing Wording
- PhysicsOPhun
- · Replies 5 ·
Why Does Current Density Yield Different Results in Two Scenarios?
- Destrio
- · Replies 2 ·
Calculating Force Constant in a Spring Collision
- PhysicsOPhun
- · Replies 4 ·
Calculating Thrust & Force During Space Shuttle Liftoff
- thebest100
- · Replies 3 ·
Angle of Bullet Fired: Solving for the Initial Angle
- Physics08
- · Replies 7 ·
Is the Work Done by the Electric Field Positive, Negative, or Zero?
- skwz
- · Replies 1 ·
How Do You Calculate Current and Voltage in a Complex Circuit Diagram?
- kazekko
- · Replies 2 ·
What are the Kinematics of a Car Plunging off the Grand Canyon Edge?
- Below
- · Replies 5 ·
Motion problem with two rocks being released at different times
- mjolnir80
- · Replies 2 ·
Resultant Force for circular motion on a banked track
- dumdum000333
- · Replies 2 ·
Calculating Absolute and Gauge Pressure in a Gasoline-Filled Container
- JWHooper
- · Replies 4 ·
Finding the equivalent resistance b/w a and b
- lgmavs41
- · Replies 2 ·
Solve Internal Resistance Homework Problem
- nokia8650
- · Replies 1 ·
How do electric flux and radius affect each other in a Gaussian sphere?
- jmarko10
- · Replies 4 ·
Field strength and energy of electrons in a magnetron
- mrroboto
- · Replies 1 ·
Uncertainity and Error Question
- inno87
- · Replies 1 ·
Accelerated mass and spring system
- donorcard
- · Replies 1 ·
How Fast Must the Magnetic Field Change to Induce a 3.4 A Current in a Coil?
- BuBbLeS01
- · Replies 32 ·
Calculating Velocity Using Work and Friction
- rsala
- · Replies 4 ·
Finding the Momentums of Two Cars in a System
- kdizzle711
- · Replies 4 ·
Conservation of Angular Momentum of Turntable
- XxBollWeevilx
- · Replies 2 ·
The heat capacity of an ideal gas.
- corr0105
- · Replies 2 ·
Magnitude of final velocity. Due today
- kdizzle711
- · Replies 1 ·
Springs, Kinetic Friction, and Distance help me please
- PhysicsOPhun
- · Replies 1 ·
Finding Wavelength: Ripple Tank Wave Speed & Frequency
- x-little-reme
- · Replies 3 ·
If a particle and a system have zero momentum
- DJW
- · Replies 1 ·
Mastering Physics 9.42 - Momentum of rocket/debris
- kramerbaggins
- · Replies 3 ·
What Happens to Kinetic Energy During Latent Heat of Fusion?
- ghazni
- · Replies 2 ·
Calculating Work and Friction on a Crate on an Incline
- Sheneron
- · Replies 3 ·
How Does Temperature Affect the Viscosity of Milk?
- mibson
- · Replies 1 ·
Help calculating light intensity
- Mastagamer
- · Replies 1 ·
Maximizing Accuracy: Comparing Average and Instantaneous Velocity Calculations
- OrbitalPower
- · Replies 1 ·
Microstates and oscillators help
- karnten07
- · Replies 3 ·
Integrating: mg/b(1 - e^(-bt/m)
- jmwachtel
- · Replies 17 ·
How Does Muscle Size Influence Lifting Capacity?
- Goldenwind
- · Replies 1 ·
Why Does a Car Run Off the Road When Going Too Fast on a Curve?
- physicsdude12
- · Replies 2 ·
Finding Velocity of Positive ion with Volts given.
- dkr1207
- · Replies 4 ·
What is the magnitude of the force between the two charges?
- yo_man
- · Replies 1 ·
Will the Thrown Ball Overtake the Falling Flowerpot?
- MuchJokes
- · Replies 8 ·
Heads occurs 15 times out of 20 - Is it a fair coin?
- phono
- · Replies 3 ·
Focal Length: cm-1 Conversion | 0.0759cm-1
- zuzu23
- · Replies 4 ·
How Much Lead Is Needed to Sink a Floating Log?
- moniquert
- · Replies 11 ·
Does gravity work in the opposite direction when moving down on a ferris wheel?
- jj8890
- · Replies 1 ·
Impulse basketball homework Question
- creative_wind
- · Replies 1 ·
How Does Gauss's Law Apply to Electric Fields at Points P2 and P3?
- jesuslovesu
- · Replies 5 ·
Introduction to Thermodynamics - Two Basic Problems
- decatte
- · Replies 3 ·
How Do You Find the Zero Electric Field Point Between Two Charged Particles?
- physicsbhelp
- · Replies 33 ·
Work on an object moving in a circle.
- jj8890
- · Replies 7 ·
Finnding greates common denoinator
- Physics_MHS
- · Replies 1 ·
Solving a Power Problem: Work & Inst. Power
- AnkhUNC
- · Replies 6 ·
What is the potential difference between points a and b?
- max1205
- · Replies 4 ·
Angular Acceleration, Max/Min, and Grav. Attraction
- the7joker7
- · Replies 4 ·
Conservation of Momentum in Collisions
- speckledot
- · Replies 6 ·
What is the value of gravity in free-fall and two-dimensional kinematics?
- Below
- · Replies 1 ·
Vector Addition: Solving for Magnitude of B in C+B=7i+5j
- jaciel2001cas
- · Replies 4 ·
Solve Kinematics Problem: Stone Thrown from 165m Building, 4s Travel Time
- Below
- · Replies 8 ·
Please check if I did it right?
- yaho8888
- · Replies 1 ·
Relating solar energy area to power/time?
- Tineras
- · Replies 1 ·
Police Car Siren Frequency and Wavelengths
- ~christina~
- · Replies 6 ·
What is the Maximum Angle for Total Internal Reflection in a Prism?
- xinlan
- · Replies 5 ·
Electric potential - Is the teacher wrong?
- tony873004
- · Replies 15 ·
Solve Charge Density (rod) Homework Problem
- jesuslovesu
- · Replies 1 ·
Drawing Kinematic Graphs for Negatively Accelerating Velocity-Time
- dranseth
- · Replies 4 ·
Conservation of Energy max height
- soul5
- · Replies 5 ·
Potential that has had me stuck for hours
- Destrio
- · Replies 20 ·
Determine distance traveled up an incline w/ friction
- Cbookman
- · Replies 8 ·
How Does Bubble Size Change with Depth in Fluid Mechanics?
- cat_eyes
- · Replies 1 ·
Newton's Laws of Motion on an airplane
- torresmido
- · Replies 3 ·
Conservation of Momentum Problem
- skier07
- · Replies 1 ·
Calculating the Average Current of a Rotating Charge q | Insulating String
- eagleswings
- · Replies 4 ·
Calculating Magnetic Flux in a Bent Square Loop with a Uniform Magnetic Field
- BuBbLeS01
- · Replies 1 ·
Moment of inertia of a flywheel
- Arejang
- · Replies 7 ·
How Does Water Pressure Vary in Different Shaped Tanks?
- p0ink
- · Replies 14 ·
Kinetic energy of a particle help
- Sheneron
- · Replies 3 ·
Calculate Current Through Battery Connected to Resistor
- katiemc124
- · Replies 2 ·
Solving Kinematics Problem: Who Wins the Race?
- undefinable
- · Replies 3 ·
Series Circuit Resistance: Finding R1 and R2 | Step-by-Step Guide
- Sino87
- · Replies 1 ·
Calculating Magnetic Flux in a Solenoid-Loop System with Varying Angles
- BuBbLeS01
- · Replies 3 ·
Investigating How Water Volume Affects Ice Melting Rate
- dumb__x
- · Replies 4 ·
Solve Satellite Problem: Find Speed at Maximum Height
- yasar1967
- · Replies 1 ·
What is the work done on a bucket hanging in a well?
- enian
- · Replies 2 ·
What Is the Minimum Height for a Block to Complete a Frictionless Loop?
- nightshade123
- · Replies 8 ·
Calculating Proton Speed: 120V Potential Difference
- Gear300
- · Replies 1 ·
Calculating Current Density in Solar Wind: nLAe Method Explained
- flash525
- · Replies 2 ·
Calculating Current in Resistor of Magnetic Flux Circuit (V=18V, R=30Ω)
- BuBbLeS01
- · Replies 2 ·
Direction of Induced Current for A Moving Loop of Wire
- JasonBourneV
- · Replies 2 ·
What Are the Quantum Numbers for a 3d State in Hydrogen?
- giffary
- · Replies 3 ·
Finding the value of the coefficient of elasticity for a 1D collision.
- Lemansky
- · Replies 1 ·
Pipe and Bernoulli's Equation: Solving for Mass and Gauge Pressure
- ~christina~
- · Replies 4 ·
What is the Radial Acceleration
- Sunnie
- · Replies 3 ·
Is Assistance Available for an Electromagnetic Theory Problem?
- kreb
- · Replies 1 ·
Optical absorption in Semiconductors
- Defennder
- · Replies 4 ·
Which Liquid Requires More Volume to Conceal a Coin: Oil or Water?
- jakey
- · Replies 1 ·
Will an image appear larger or smaller in oil than in water
- jakey
- · Replies 1 ·