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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T, simple harmonic motion, gravity
- kjavia795
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Interference of Waves from Two Sources and Beats
- weezer13578
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Electrostatics. finding the resultant force
- anoel
- · Replies 1 ·
Newton's laws. Force and Tension help
- Matt12345
- · Replies 1 ·
Electric Field of Long Hollow Cylinder Homework
- huntingrdr
- · Replies 4 ·
How to Calculate Flow Rate in a Tapered Pipe with Pressure Difference?
- 12342
- · Replies 1 ·
Baseball reaches maximum height after 3.5 s and clears a 95.8 m fence
- mcg5132
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Charge on the surface of a conducting sphere.
- 123xx
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How can a torque be derived for a moving dipole without external fields?
- tavsaito
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Electric Dipole Moment and electric field
- DeadFishFactory
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Short in Wires with 2 Different Resistances
- skibum143
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Why Can't I Solve for Is Using the Left Loop in Thevenin Voltage Problems?
- mmmboh
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Cable Pulling a Car: Drawing FBD
- mybrohshi5
- · Replies 11 ·
Calculating Electric Field in the First Quadrant: What is the Next Step?
- camrylx
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What Is the Correct Calculation for Net Force on Charge 3 in an Electric Field?
- s.bala
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How Is the Mass of the Spherical Weight Calculated for Buoyancy Equilibrium?
- ACE_99
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Calculating Electric Field from a Source Charge: A House Fly Problem
- Dmitri10
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Calculating Focal Length of Human Eye When Focusing Closely
- gadawg90
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Coefficient of Friction of object sliding down ramp
- grr_physics
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Calculating Amplitude and Energy in a Damped Oscillator: A Homework Question
- UMDstudent
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What is the estimated capacitance of the capacitor in a photographic flash unit?
- songoku
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Physics induction concepts help
- s.bala
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HELP Potential energy of proton in capacitor
- csimon1
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How to Calculate Boat Angle for Straight River Crossing?
- kboykb
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One More hard Oscillations Problem
- mihir871
- · Replies 15 ·
I keep getting this wrong but i think im doing it right can some1help
- s.bala
- · Replies 6 ·
Magnetic Force away from Long Pair of Wires
- Tjvelcro
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How to Write a Physics Story Using These Terms?
- dhru1
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Calculating the Total Energy of a Geosynchronous Satellite in Orbit
- Cudi1
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What Is the Potential Difference in Biological Membranes and Electric Fields?
- pillar
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Force: max tension before rope breaks
- mybrohshi5
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Acceleration as a Function of Velocity
- DeboPGH
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Does a Ball Rotate on a Frictionless Surface?
- anonymousphys
- · Replies 13 ·
Solving for Distance and Time: Motion on Incline Homework Help
- kboykb
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How Is Mechanical Energy Calculated in Thrown Objects?
- new^2^physics
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How much work is done by the engine?
- zaga04
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Speed & Velocity & Friction Force ?
- Nesstle
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Counting electrons: current and charge
- splash
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How Is Chimpanzee Tracking Using Vectors and Trigonometry?
- Calhoun295
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Calculate the length of a parsec if you are on mars
- warfreak131
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How Big Does a Helium Balloon Need to Be to Reduce a Person's Weight by 21%?
- dymand68
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Change in Entropy of Boiling Water to Steam
- ihearyourecho
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A 8.0×10^-2 kg ice cube at 0.0 degrees C is dropped into a Styrofoam cup
- ihearyourecho
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Electric Field Involving Gauss's Law Problem
- king_abu
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What Is the X-Component of the Electric Field from a Given Potential?
- Ron Burgundy
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What Element Results from Removing Protons and Neutrons from Oxygen-16?
- likewhoa
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Motions in Space Homework: Find Table Height, Falling Time
- emk555
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Does a 15 nm Photon Ionize a Ground State Hydrogen Atom?
- ricky red
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What is the tension in string 1 when string 2 breaks?
- spursfan2110
- · Replies 7 ·
Spring, resonance frequency and a bit of fun
- magwas
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One dimensional motion in Halliday Resnick Fundamentals
- madah12
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Electric potential of a hollow sphere
- fluidistic
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What is the Ratio of Speeds After a Noncentral Elastic Collision?
- EPhoenix
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What Is the Angular Velocity of a Hinged Stick After Collision?
- zhenyazh
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Physics Force and Motion Problem
- PhysicsMess22
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Frequency of Siren Perceived at 50m After Fire Engine Passes
- olyviab
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Electrostatic force problems, help
- StudentPhys
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What is sound wave refraction and how do speed and frequency affect it?
- CanadianEh
- · Replies 2 ·
Kinematics: Object Thrown Up from 3.6m Window
- ryan8642
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The pressure sand exerts on a particular area.
- Physics321
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What does ε₀ stand for in the electric field equation?
- Lorax
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Proving initial speed of a particle
- paradiselost
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Solving for 3 variables in projectile motion problem
- babacanoosh
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How Is Charge q2 Calculated Using Electric Potential and Field Equations?
- nunos
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Motion with Constant Acceleration help
- a.train12
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Does the Subscript x=0 Indicate a Zero x-Component in Vector Notation?
- Bizkit
- · Replies 1 ·
Milikan's Experiment Lab - Euclidean Algorithm
- Morass
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Electric Field of Two Charged Plates
- Physics197
- · Replies 3 ·
Supersonic plane flying horizontally
- olyviab
- · Replies 2 ·
Electric Potential: V=-ED for Capacitors?
- collegeconfid
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Atwood's machine height problem
- tony873004
- · Replies 2 ·
How Do I Calculate the Time Constant from Oscillation Decay?
- LBRRIT2390
- · Replies 1 ·
Electric Field in Concentric Spheres
- aifan27
- · Replies 4 ·
Electric Potential: Solving for Center of Sphere
- collegeconfid
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A diatomic ideal gas such as air..
- Physics321
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Thermos Coffee Cooling: What is the Final Temperature?
- Saladsamurai
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Finding gravity on Planet X from a string, a weight, and frequency
- LBRRIT2390
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Net Electrostatic Force on Four Charges at the Corners of a Square
- seb26
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Rotation Rate of a Generator Coil
- lampshader
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Free Body Diagram for Hanging Weight with Two Ropes | Tension Comparison
- mybrohshi5
- · Replies 3 ·
Understanding Gauss's Law and Solving for E(P) and phi(P)
- lidl
- · Replies 3 ·
Three-Phase System: RMS Phase Voltage Magnitude 230V, Zg=5+j5, 30+j30 Loads
- noobie!
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Net Force on q2 from Charges q1-q4: Magnitude & Direction
- NewbAtPhysics
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Solve Electric Force Homework: Find Initial Charge on Each Object
- seb26
- · Replies 3 ·
Magnitude of Acceleration of Masses
- zx95
- · Replies 6 ·
Minimum Electric Potential Difference Required to Bring Alpha Particle to Rest
- Mspike6
- · Replies 4 ·
Determing wavelength of sound wave from steel string
- LBRRIT2390
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Solve Tension Problem: 3kg Mass, 5.4kg Brick, 12.01N Friction
- David999
- · Replies 3 ·
How Do You Solve a Uniform Cantilevered Beam Problem?
- shah4u19
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Intensity of sound wave when given sound intensity level.
- Ericv_91
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Acceleration problem-how to incorporate head starts?
- sean-820
- · Replies 13 ·
What Are the Launch Angles for Half the Maximum Range of a Projectile?
- mullets1200
- · Replies 1 ·
Collision Problem: Masses, Speed, Force
- ges9503
- · Replies 1 ·
Determining the change in temperature
- blackdog666
- · Replies 1 ·
Train Physics Problem: Finding d1 with Given t, u, and d2 | Homework Help
- Physuph
- · Replies 1 ·
What Is the Optimal Launch Angle for Maximum Range When Landing 3 Meters Lower?
- larryboi7
- · Replies 4 ·
Find Tension in Rope: 45deg, No Moments @A
- krnhseya
- · Replies 1 ·
What is the Relationship Between Currents in Three Branches of a Circuit?
- lampshader
- · Replies 2 ·
Overcoming Fear: 10 Tips for Moving Forward
- sstangle73
- · Replies 1 ·
Height of the two balls collision
- larryboi7
- · Replies 1 ·