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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Pressure on a wall exerted by a gas
- [V]
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Determine transmission of light through silver.
- Bhumble
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How Do You Calculate Volume Charge Density in a Varying Electron Beam?
- ajith.mk91
- · Replies 3 ·
Calculate Minimum Horsepower to Drag 340 kg Box at 1.45 m/s
- Jo-AnneLi
- · Replies 1 ·
Electric Potential: Velocity of a particle
- Bryon
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Resolving Forces in 3D - Statics
- keximaze
- · Replies 4 ·
Forces with friction problem, two block on each other
- Asphyxiated
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Electric Potential: Electric charge surrounded by two spherical shells
- Bryon
- · Replies 2 ·
Gravitational potential energy question (that my teachers can't explain)
- brian_box
- · Replies 2 ·
Doppler Effect: Wavelengths of Sound Waves
- Karol
- · Replies 1 ·
What Is the Tension Required for the Box to Slip on a Snow-Covered Hill?
- octopus41092
- · Replies 4 ·
Find the Time Constant of an RC Circuit
- tomrja
- · Replies 9 ·
Calculating Spring Constant of Bungee Cord
- HHippo
- · Replies 3 ·
Projectile motion without time or initial velocity
- entwistle 89
- · Replies 1 ·
Isobaric System (work done by, or on?)
- audilover
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How Does Electric Field Vary with Distance in a Cylindrical Setup?
- weesiang_loke
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Finding tension and acceleration for two masses on a pulley
- drastice
- · Replies 16 ·
Calculating Electron Kinetic Energy in a Cathode Ray Tube
- dmitriylm
- · Replies 7 ·
Drawing shear force and bending moment diagrams for a cantilever beam
- 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
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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 midway between two equal point charges
- 123yt
- · Replies 6 ·
Volume flow and speed of the flow with different cross-sections and heights
- Ryker
- · Replies 6 ·
Power consumption of 600W device when voltage drops from 220V to 160V
- 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
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How much water would be required to absorb this heat?
- Intrusionv2
- · Replies 3 ·
Baseball thrown from street passes window at 23m with 14m/s upward
- Pius
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Newton's 2nd Law/Coefficient of friction
- aces9113
- · Replies 5 ·
Work, evaporation and internal energy in first law of thermodynamics
- 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 ·
Maximum height and time for object launched at 13.8 m/s
- theredeemer
- · Replies 11 ·
Finding Acceleration of Car Stopping in 157ft at 70mph
- armolinasf
- · Replies 4 ·
Euler's method for tank drainage when inlet A stops
- djspuddy
- · Replies 5 ·
Solar radiation intercepted by Mars surface
- 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 ·
Height of pine tree casting shadow on a wall
- chawki
- · Replies 18 ·
Electric Field inside a metal sphere
- Squall
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Archimedes' Problem: Iron Body Submerged in Water
- germangb
- · Replies 2 ·
Relating force, displacement, time and velocity
- Ohoneo
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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 ·
Moment of inertia using parallel axis theorem
- nabaa
- · Replies 35 ·
Electric field from storm cloud at aircraft altitude
- baileya
- · Replies 1 ·
Electric Field and Charge of a Capacitor
- Squall
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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
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How Does Temperature Affect the Length of Steel?
- chawki
- · Replies 4 ·
Calculating Change in Kinetic Energy of Cart
- Goatsenator
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Resistance depending on temperature
- lilaznjewel
- · Replies 10 ·
How do I calculate work when both pressure and volume are changing?
- celtic
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What is the angle of the velocity vector of a released package?
- mac227
- · Replies 5 ·
Finding vector components and angles from a treasure hunt diagram
- 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 ·
Cathode ray tube deflection with voltage between plates
- 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 ·
Block sliding down incline at constant velocity with friction
- 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
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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
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What is the Magnitude of the Dipole Moment in a Uniform Electric Field?
- nothingatall
- · Replies 3 ·
What is Coulomb's law and what does it act on?
- 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 ·