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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Calculating Electron Kinetic Energy in a Cathode Ray Tube
- dmitriylm
- · Replies 7 ·
Shear force and bending moment diagram
- Lowrie
- · Replies 1 ·
How Much Water Turns to Ice When Mixed with Ice at Subzero Temperatures?
- rahiem01
- · Replies 13 ·
Calculating E-Field Inside a Hollow Sphere with Concentric Shells
- flyingpig
- · Replies 27 ·
How Do You Convert d3p to a Function of Frequency Nu in Spherical Coordinates?
- erok81
- · Replies 3 ·
Potential Energy of two spheres
- lcam2
- · Replies 1 ·
Unit conversion inside a derived gausses law eq
- bobasp1
- · Replies 4 ·
Why is Angular Momentum Conserved on a Frictional Surface?
- Telemachus
- · Replies 2 ·
Centripetal acceleration where to start
- Caitiemarie89
- · Replies 1 ·
What is the Voltage read on a Real Voltmeter?
- tomrja
- · Replies 3 ·
What is the equivalent capacitance of the capacitors shown in the figure?
- cjames9001
- · Replies 1 ·
Efficiency of a heat engine in a reversible cycle
- JSmith123
- · Replies 1 ·
Equivalent Resistance Calculation for Resistors in a Circuit
- cjames9001
- · Replies 6 ·
Why do we need an Earth wire in our appliances?
- Terocamo
- · Replies 4 ·
Which optics software is recommended for drawing optics schematics?
- ricky1986
- · Replies 1 ·
Why Can We Only Calculate Average Speed During a Stone's Fall?
- snowdog301
- · Replies 2 ·
Electric Potential between two points
- 123yt
- · Replies 6 ·
Volume flow and speed of the flow with different cross-sections and heights
- Ryker
- · Replies 6 ·
Calculate Power Consumption: 600W Device at 220V to 160V | 1W Precision
- chawki
- · Replies 14 ·
Building a Model Car: Ideas for Traveling 10 Meters
- sophistry
- · Replies 1 ·
Linear Expansion of Steel Girder Due to Temperature Change
- chawki
- · Replies 8 ·
Real-World Collision Investigation Project for High School Physics Students
- dkifer
- · Replies 2 ·
Dated box of dates, incline ramp, find normal force
- royblaze
- · Replies 8 ·
How Does the Resistance of a Light Bulb Change When It's On Versus Off?
- natash
- · Replies 1 ·
Understanding a Charged Device: Polarization and Grounding
- runningirl
- · Replies 1 ·
How much water would be required to absorb this heat?
- Intrusionv2
- · Replies 3 ·
Solving Baseball Throw: Initial Speed, Altitude & Time
- Pius
- · Replies 3 ·
Newton's 2nd Law/Coefficient of friction
- aces9113
- · Replies 5 ·
Need help. How do i start the problem, thank you.
- rijo664
- · Replies 2 ·
What Is the Acceleration of a Rolling Tire's Top and Bottom?
- joej24
- · Replies 12 ·
Rocket Propulsion - Varying mass
- P-Illiterate
- · Replies 2 ·
Find Max Height & Time of Object Launched at 13.8m/s
- theredeemer
- · Replies 11 ·
Finding Acceleration of Car Stopping in 157ft at 70mph
- armolinasf
- · Replies 4 ·
How Does Euler's Method Help Solve Dynamic System Changes in a Tank System?
- djspuddy
- · Replies 5 ·
Solar radiation, mars, earths and equations help please?
- helpemz2011
- · Replies 18 ·
How Do Two Equal Mass Asteroids Orbit Each Other?
- CornerCase
- · Replies 6 ·
Isothermal expansion: reversible vs irreversible
- chemboy101
- · Replies 2 ·
What Are the Mass and Speed After an Elastic Collision in Ice Hockey?
- papereater33
- · Replies 9 ·
Calculating spacetime intervals between events
- maker2807
- · Replies 4 ·
Trigonometry homework: length of shadow
- chawki
- · Replies 18 ·
Electric Field inside a metal sphere
- Squall
- · Replies 2 ·
Archimedes' Problem: Iron Body Submerged in Water
- germangb
- · Replies 2 ·
Relating force, displacement, time and velocity
- Ohoneo
- · Replies 4 ·
Concentric Spheres: Learn About Shapes
- nabaa
- · Replies 2 ·
Magnitude of Acceleration given a pendulum equilibrium
- joejoemickgo
- · Replies 1 ·
Kinematics - Boat over a constant River.
- Exuro89
- · Replies 21 ·
Geodesics on Surfaces: Proving the Relationship to Particle Motion
- Grand
- · Replies 1 ·
Need Help with Physics? Solve Inertia Equations Here!
- nabaa
- · Replies 35 ·
Electroscope App Homework: Measuring Cloud Charge & Estimating Plane Field
- baileya
- · Replies 1 ·
Electric Field and Charge of a Capacitor
- Squall
- · Replies 4 ·
Thermodynamics, Finding Work and Heat transfer
- crazyhiindu25
- · Replies 1 ·
How Fast Must a Tennis Player Run to Return a Lob?
- mac227
- · Replies 1 ·
How Does Temperature Change Over Time Between Two Aluminum Plates?
- kubixxx
- · Replies 6 ·
Calculus Problem (involes critical numbers)
- Cod
- · Replies 4 ·
A man in an elevator at the forces affecting him
- aeromat
- · Replies 4 ·
How Does Temperature Affect the Length of Steel?
- chawki
- · Replies 4 ·
Calculating Change in Kinetic Energy of Cart
- Goatsenator
- · Replies 2 ·
Resistance depending on temperature
- lilaznjewel
- · Replies 10 ·
How do I calculate work when both pressure and volume are changing?
- celtic
- · Replies 1 ·
What is the angle of the velocity vector of a released package?
- mac227
- · Replies 5 ·
Help with Vector Components: Finding Magnitude and Direction
- godkills
- · Replies 3 ·
Rocket's Max Height: Solving for ymax
- Turtlie
- · Replies 1 ·
Find Force Applied to Tooth with Tension of 2.0 N
- Resmo112
- · Replies 3 ·
Give me some tips for this test related to electric fields and circuits
- pokeefer
- · Replies 3 ·
Potential Difference Between Capacitors in Circut
- nolachrymose
- · Replies 5 ·
Energy lost charging a capacitor - can someone check my calculations.
- MalachiK
- · Replies 3 ·
Dynamics: Minimum Force Problem
- JM92
- · Replies 2 ·
Moment of inertia of 3 disc system
- Rosengrip
- · Replies 3 ·
Physics find angle of inclined plane help?
- crosbykins
- · Replies 2 ·
How Is Work Calculated When Moving a Charge Near a Conducting Shell?
- NT123
- · Replies 1 ·
Current from a sine wave signal
- dancergirlie
- · Replies 1 ·
If the electron is freed up, what would be its acceleration?
- dimpledur
- · Replies 6 ·
How do I solve for voltage in a phototube with multiple figures and connections?
- dimpledur
- · Replies 18 ·
Finding f_L as Source Speed Approaches Speed of Sound
- JJBladester
- · Replies 1 ·
What is the Magnitude of the Dipole Moment in a Uniform Electric Field?
- nothingatall
- · Replies 3 ·
Understanding Coulomb's Law: Force Between Charged Objects Explained
- runningirl
- · Replies 2 ·
Bolt Falling from elevator ceiling
- cal.queen92
- · Replies 11 ·
Fluid mechanics barometer problem
- anmolnanda
- · Replies 1 ·
Angular acceleration, inertia, torque, mass, force and velocity
- akkamaan
- · Replies 17 ·
Monatomic Gas and Isotherm - W, U Calculations
- dvolpe
- · Replies 6 ·
I am not sure the source of error of simple pendulum experiment
- Raul Lai
- · Replies 39 ·
How Do Wind and Plane Angles Affect Flight Direction and Speed?
- ilene
- · Replies 1 ·
What is the translational speed of the cylinder after falling 8.0 meters?
- BlameTruth
- · Replies 9 ·
Calculating the Magnetic Field in Free Space
- miew
- · Replies 8 ·
Graph of electric field, determine potential
- allison08
- · Replies 2 ·
What is the process for measuring torque in a magnetic field experiment?
- quietrain
- · Replies 2 ·
Calculating Stopping Distance for a Moving Truck and Box to Prevent Sliding
- bbreezy
- · Replies 1 ·
Tension Change When Spreading Scales: What Happens and Why?
- mouasee012
- · Replies 1 ·
Acceleration and Distance problem
- The Tutor
- · Replies 2 ·
How Does a Boat's Position Change with Wind and Currents?
- nakidhoboe
- · Replies 3 ·
Homework (Initial velocity, gravity, and falling height)
- RawTalent
- · Replies 3 ·
How Does a Pitcher's Force Influence a Baseball's Acceleration and Distance?
- Amanda567
- · Replies 5 ·
What Is the Coefficient of Kinetic Friction for a Hockey Puck on Ice?
- bbreezy
- · Replies 3 ·
Circular motion, grade 12 physics
- XxphysicsxX
- · Replies 2 ·
Which Object Exerts More Force: A or B?
- AnomalyCoder
- · Replies 1 ·
2-D Kinematics Vector Resolution
- endverse
- · Replies 1 ·
Parallel or Series Capacitors: Solving Circuit Confusion
- Ahalp
- · Replies 1 ·
Electron at equilibrium, electrostatics. quick question
- doublea500
- · Replies 3 ·
How Do You Calculate Radial Acceleration at the Equator Due to Earth's Rotation?
- Amanda567
- · Replies 12 ·
Circuits: Solve Using Nodal and mesh Analysis
- Saladsamurai
- · Replies 3 ·