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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How Much Weight Can a 2.8 kg Air Mattress Support in Water Before Sinking?
- b0r33d
- · Replies 1 ·
Calculating Power of Pump in Flooded Basement
- duke_nemmerle
- · Replies 2 ·
Velocity Problem of neutron star
- Cursed
- · Replies 6 ·
What Is the Maximum Coefficient of Static Friction for a Sliding Block System?
- yuvlevental
- · Replies 11 ·
Finding voltage and current across resistors with only resistance given
- anonymous820
- · Replies 5 ·
65W bulbs connected in parallel (hopefully easy)
- HyperSniper
- · Replies 4 ·
Unstretched Spring and Angular Velocity Problem
- BitterSuites
- · Replies 7 ·
Electric and magnetic fields with electron
- cas111
- · Replies 1 ·
Calculating Rotational Kinetic Energy of a Clock's Hands
- elkedoring
- · Replies 3 ·
How Do Rotational Dynamics Affect Mechanical Systems?
- tcin06
- · Replies 5 ·
Ferry boat sinks 4 cm when truck boards—find combined weight
- b0r33d
- · Replies 1 ·
How Do Suncreams Absorb UV Radiation at the Atomic Level?
- Air
- · Replies 5 ·
Magnetic Force on a Wire with a Changing Direction of Current
- Andy111
- · Replies 3 ·
How Do You Calculate the Q Factor of a Harmonic Oscillator?
- theR
- · Replies 2 ·
Moment of inertia for Concave Polygon
- SaadAhmad
- · Replies 2 ·
How Can A Be Calculated for Uniform Electric Field in a Spherical Shell?
- paralian
- · Replies 1 ·
Moment of Inertia and two uniform solid spheres
- meganw
- · Replies 4 ·
How Do You Calculate the Near Point Distance for an Unaided Eye?
- ejonesdj
- · Replies 1 ·
What Causes a Bright Spot at the Center in a Newton's Rings Experiment?
- steven10137
- · Replies 3 ·
Factoring Equations with Real Roots
- Benzoate
- · Replies 6 ·
Moment of inertia of a disk with off-center hole
- Quartz
- · Replies 5 ·
How can I find the frictional torque in this moment of inertia lab?
- Erickimiscool
- · Replies 1 ·
How Do You Calculate the Capacitance of C2 After Reconnection?
- salman213
- · Replies 1 ·
Finding the mass of a C-12 atom in kilograms
- Physicsissuef
- · Replies 15 ·
Solve Angular Speed of Rotating Rod: Conservation of Energy
- rasensuriken
- · Replies 5 ·
How Is Lift Calculated Using the Bernoulli Principle for an Airplane Wing?
- th3plan
- · Replies 1 ·
When is momentum conserved and does direction matter in collisions?
- kyin01
- · Replies 5 ·
Calculate RMS current? [SOLVED] Calculate RMS current!?
- lettertwelve
- · Replies 12 ·
Electric Potential of Hydrogen-like ions
- stevenlu
- · Replies 3 ·
Kinetic energy of proton after tunneling through 10 fm barrier
- nickm4
- · Replies 1 ·
Two springs together more elastic?
- ys2050
- · Replies 1 ·
Conservation of Energy and Centripetal Motion Question
- cblack
- · Replies 2 ·
Calculate Torque Balance to Find the Angle of a String
- just.karl
- · Replies 5 ·
Hooke's law - addition of force constant
- ys2050
- · Replies 5 ·
Barrier Tunneling and Kinetic Energy
- nickm4
- · Replies 1 ·
What Determines the Period of Oscillation in an LC Circuit?
- snipaj9696
- · Replies 6 ·
Harlequin duck bobbing in water waves: frequency, speed, wavelength
- KudosDude
- · Replies 1 ·
How Does a Horse's Size Influence Its Maximum Speed?
- bcjochim07
- · Replies 1 ·
A Proton is orbiting a metal ball
- cse63146
- · Replies 24 ·
Calculate Position of q2 When Speed is 8m/s Given Two Charges Energy
- salman213
- · Replies 9 ·
Elastic Collisions and Harmonic Motion
- Knissp
- · Replies 4 ·
How Accurate is the Calculated Inductance of 74mH in a Series RL Circuit?
- snipaj9696
- · Replies 1 ·
How Does Covering One Slit Affect the Double Slit Experiment's Fringe Intensity?
- konichiwa3x
- · Replies 1 ·
How High Was the Building From Which the Water Balloon Was Dropped?
- StephenDoty
- · Replies 2 ·
Does acceleration change in non-uniform circular motion?
- jasmaar
- · Replies 3 ·
How Is the Angle Between Two Vectors Determined Using Their Dot Product?
- StephenDoty
- · Replies 2 ·
Work done in a Gravitational Feild of a Hemisphere
- Himanshu
- · Replies 1 ·
Do Balls X and Y Conserve Momentum and Energy in an Elastic Collision?
- Herzbog
- · Replies 7 ·
How Do You Solve Projectile Motion Problems Involving Angles and Heights?
- TheKovac
- · Replies 2 ·
Conservation of momentum and frictionless ice
- StephenDoty
- · Replies 11 ·
How Do You Calculate the Force Constant of a Copper Wire Using Young's Modulus?
- dazza67
- · Replies 2 ·
Calculating Spring Constant from 52N Force and 0.73m Stretch
- StephenDoty
- · Replies 6 ·
Radioactive Decay of Element 82-214
- xinlan
- · Replies 3 ·
Work done by stretching a STring
- nickclarson
- · Replies 3 ·
Applying Kirchoff's Law in an R-L circuit with parallel resistors
- amolv06
- · Replies 4 ·
Simple Harmonic Oscillator and period
- Knissp
- · Replies 1 ·
Find Equivalent Inductance for 3 Inductors: 6mH, 8mH, 6mH
- snipaj9696
- · Replies 1 ·
Does Mass Affect Velocity in Collisions?
- StephenDoty
- · Replies 7 ·
Thin film red light green light interference
- arod2812
- · Replies 1 ·
Protons, Neutrons, and Electrons
- elephantorz
- · Replies 4 ·
Conservation of momentum and Impulse
- leftyguitarjo
- · Replies 7 ·
Induced Emf circular loop of wire
- Gear300
- · Replies 4 ·
What Is the Magnitude of Satellite Acceleration Due to Gravity?
- Cursed
- · Replies 2 ·
Elastic Potential Energy and SMH
- Roze
- · Replies 3 ·
Kinetic Energy Calculation for Alpha Particle Emission in Nuclear Reaction
- Elvis
- · Replies 1 ·
Applying Pascal's Law to a Hydraulic Lift Problem
- djc88
- · Replies 4 ·
Calculating Alpha Particle Velocity from Initial Nucleus Motion
- Elvis
- · Replies 1 ·
Bullet embedded in wood block and rocket course change
- Elvis
- · Replies 1 ·
Determine the specific latent heat of vaporization of water
- series111
- · Replies 1 ·
I am slipping off my spinning disc-
- Toododd
- · Replies 6 ·
Doppler Effect Submarine Problem
- madchemist
- · Replies 30 ·
How do I find the center of gravity of two bolted bodies?
- vscid
- · Replies 1 ·
Locating Image on Retina with Focal Length 0.020m
- Air
- · Replies 3 ·
Roof forces pushing out walls in sloped symmetric building
- iamwilson
- · Replies 1 ·
Find the ratio of mass spring, oscillation problem
- th3plan
- · Replies 9 ·
Calculating Final Temperature and State When Mixing Ice and Water
- DBW3
- · Replies 2 ·
Minimum Height for Roller Coaster Loop Success
- rsala
- · Replies 9 ·
Hooke's Law, three serial springs
- Lore
- · Replies 7 ·
Solving Closed Pipe Question: Length Difference of 2 Pipes
- pebbles
- · Replies 1 ·
Does magnetic force change kinetic energy or momentum of a charged particle?
- Hevonen
- · Replies 4 ·
Calculating Volume of Mercury Displaced by a Tanker on a Different Planet
- Milad_1989
- · Replies 9 ·
Cons of Momentum: Calculating Speeds
- iamkristing
- · Replies 1 ·
How Much Force Keeps a Satellite in Orbit at Three Earth Radii?
- chiurox
- · Replies 1 ·
Finding V_meter in a Battery Circuit
- viperassasin
- · Replies 1 ·
How Does a Voltmeter Measure Voltage in a Circuit with Internal Resistance?
- viperassasin
- · Replies 1 ·
Rocket Explosion: Min & Max Final Speed
- iamkristing
- · Replies 2 ·
What is the Direction of Current Flow in a Parallel Conducting Wire?
- eps1lon
- · Replies 15 ·
Solved: Rotational Dynamics | Angular Speed=3.1 rad/sec
- iamkristing
- · Replies 4 ·
Finding magnetic field strength for a singly charged ion in circular motion
- lettertwelve
- · Replies 8 ·
What is the altitude of the plane?
- jrzygrl
- · Replies 11 ·
Calculating Work: Doubling and Halving Velocity of a 40 Kg Wagon
- nikechristo
- · Replies 3 ·
Find the applied force to cause a body to tip over
- preet
- · Replies 3 ·
Steam turbines, maximum amount of work done?
- pp84
- · Replies 3 ·
Rigid Object Under Torque: Solving for Time and Number of Revolutions
- elkedoring
- · Replies 2 ·
Electric Field of a Charged Spherical Shell: Inside and Outside Analysis
- tronter
- · Replies 3 ·
How Is Voltage Across a Capacitor Determined in a Bridge Circuit?
- Kaoi
- · Replies 7 ·
Calculate Gravitational Force at Distance R/2.41 from Star 1
- grouchy
- · Replies 6 ·
Drum beats and echoes: finding distance and sound velocity
- riddhish
- · Replies 1 ·
How Do You Calculate Projectile Motion for Different Launch Angles?
- michaeljjt
- · Replies 1 ·
Ladder and wall Statics problem
- jcampo
- · Replies 1 ·