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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Conservation of Energy and Springs
- Redfire66
- · Replies 1 ·
Electron move through capacitor
- Matt Q.
- · Replies 3 ·
Diffraction grating and Dirac comb
- SarahLou
- · Replies 7 ·
What Does R(n) Represent in a One-Dimensional Chain Model?
- usn7564
- · Replies 1 ·
Static Friction -- A ladder leaning against a wall starts to slip
- 9vswt
- · Replies 13 ·
Is K.E. Conserved During an Elastic Collision in Billiard Ball?
- DriggyBoy
- · Replies 1 ·
How Does Crew Movement Affect Acceleration on a Space Station?
- Brocoly
- · Replies 4 ·
Capacitor charging and discharging
- Prince1281
- · Replies 17 ·
Sphere rolling down an incline problem.
- Brocoly
- · Replies 7 ·
Frequency, transverse waves, low-pitch strings
- rlc
- · Replies 6 ·
Power lines from an electrically charged ball
- Karol
- · Replies 1 ·
Tension in a rope at an angle with a hanging mass
- Wolfmannm
- · Replies 6 ·
Solving Power Transmission Homework for Small Town | 1.00MW @ 35km
- Jenn123
- · Replies 6 ·
Physics car tire throwing competition
- Elliot
- · Replies 6 ·
Use the Node Voltage method to solve
- cavalieregi
- · Replies 13 ·
Waterslide and Energy Conservation
- minimario
- · Replies 4 ·
Adiabatic expansion against constant pressure
- MexChemE
- · Replies 6 ·
Physics hacksaw problem, harmonic motion
- rlc
- · Replies 12 ·
Why Must Acceleration Be Constant for the Equation v² = u² + 2as?
- air-in
- · Replies 4 ·
Hypothetical Bernoulli situation with Pascals Law(Efflux torcellis result)
- jlyu002@ucr.e
- · Replies 2 ·
Solve Refracted Ray Problem: Find Angle of Refraction
- carpelumen
- · Replies 2 ·
Problem regarding sounds and waves
- Nazif Farhan
- · Replies 4 ·
What is the block's displacement when it first comes to rest again?
- PhysicsMan999
- · Replies 4 ·
Calculating Altitude from Sonic Boom and Angle of Sight
- rlc
- · Replies 9 ·
Piston Question: Have solution, don't understand rationale
- hanag
- · Replies 2 ·
Force problem -- a painter is standing on a scaffold supported by ropes
- member 508213
- · Replies 1 ·
Calculating Tension when you swing a ball around a piece of string
- brycenrg
- · Replies 1 ·
Why does a bullet hit lower than a laser beam aimed at the same target?
- kirsten_2009
- · Replies 10 ·
Find the longest wavelength for two Bragg diffraction maxima
- Skeptic.
- · Replies 5 ·
What Are The Thevenin and Norton Equivalents for This Circuit?
- cavalieregi
- · Replies 1 ·
What is the Velocity of a Block Released from a Compressed Spring?
- PattyCake
- · Replies 4 ·
100 meter running with constant acceleration
- MariusM
- · Replies 3 ·
Where Is the Electric Potential Minimum on a Circle in a Uniform Electric Field?
- Epiclightning
- · Replies 3 ·
Calculating the initial charge on an object
- Quantum Fizzics
- · Replies 1 ·
How Do You Calculate the Force Needed to Accelerate a Grindstone?
- trdewitt
- · Replies 21 ·
Bowling ball sliding time with friction and rolling
- labgoggles
- · Replies 7 ·
How Does Induced EMF Vary Inside a Solenoid?
- physics24sam
- · Replies 6 ·
How to find the coefficient of friction in a rotor-ride?
- broadwayboo
- · Replies 1 ·
Finding final velocity of rock thrown upward from 14m cliff
- dylanjames
- · Replies 2 ·
Calculate Thickness of Ice Sheet on Lake: -17.8°C in 3.80 Minutes
- rlc
- · Replies 1 ·
Free-body diagrams and normal forces for two connected blocks
- hollymason
- · Replies 3 ·
At what angle should a force minimize work done pulling a block across a table?
- sorax123
- · Replies 4 ·
What is happening in simple circuits with inductors and capacitors?
- needhelp171
- · Replies 2 ·
Current direction in a falling magnet through a wire loop
- Feodalherren
- · Replies 3 ·
Normal Force at Highest Point of a Rotating Ferris Wheel
- logan3
- · Replies 2 ·
Calculating percent energy loss in a pendulum collision lab
- Soni12652890
- · Replies 3 ·
Why do pitot tube and venturi meter give different flow rates?
- nightingale
- · Replies 6 ·
Optimal Placement for Net Zero Electrical Force in a System of Charged Spheres
- Quantum Fizzics
- · Replies 5 ·
What is the relationship between instantaneous and average angular velocity?
- Aristotle
- · Replies 8 ·
What are the forces on a wagon being pulled up an inclined hill?
- Physics.101
- · Replies 9 ·
Solving a Spirit-in-Glass Thermometer Problem
- Abid Rizvi
- · Replies 5 ·
Uniform rope of length L and mass M, work to pull it up.
- timnswede
- · Replies 17 ·
Finding speed of sound from resonance distances in a pipe with end correction
- ENGSTUDENT12
- · Replies 3 ·
Finding angular velocity from a position-time graph
- Aristotle
- · Replies 19 ·
How do you convert ordinary frequency to angular frequency?
- michaeltozer13
- · Replies 5 ·
Centripetal force stunt driver problem
- xcortz
- · Replies 1 ·
Find Initial Velocity of a Bullet
- cntchds
- · Replies 3 ·
Paddle wheel wave equation and amplitude at different distance
- toothpaste666
- · Replies 14 ·
Design a Winning Egg Capsule Challenge
- YayLuna
- · Replies 5 ·
What formula can I use to calculate momentum transfer?
- Before
- · Replies 14 ·
How High Must the Brass Ball Start to Complete the Loop-the-Loop?
- labgoggles
- · Replies 2 ·
Rotation Problem - Constant Acceleration
- FaraDazed
- · Replies 8 ·
Calculating Uncertainty of an intrinsic function
- sam400
- · Replies 3 ·
Two Opposing Forces and Velocity
- Frankyyyyy
- · Replies 5 ·
Electric Field due to Point Charges
- Caiti
- · Replies 2 ·
Which ball reaches the circle first rolling down different chords
- lmao2plates
- · Replies 7 ·
Flow measurement in venturi meter
- freshbox
- · Replies 40 ·
Finding the theoretical value of the wavelength for a double slit experiment?
- ronsa
- · Replies 1 ·
Simple harmonic motion acceleration
- pyman999
- · Replies 2 ·
Science Fair Project involving Vectors
- Maggie Tarmey
- · Replies 2 ·
Finding velocity components of point in the middle of a tricycle
- Krus
- · Replies 9 ·
Meteor Gravitational Field Question
- Ess_Elle
- · Replies 1 ·
How much time does an object use to travel.
- Nerikk
- · Replies 4 ·
Uniform Circular Motion on a race track
- Physicsnoob90
- · Replies 1 ·
Calculating Pressure from Contact Surface
- Nerikk
- · Replies 4 ·
Calorimetry with ice and water: why does my calculation give a negative final temperature?
- toothpaste666
- · Replies 14 ·
Velocity over time with constant power
- watarok
- · Replies 1 ·
B. What is the net force acting on the object?
- PhyCalc
- · Replies 5 ·
How Do You Calculate Tension and Acceleration in an Atwood Machine?
- kitkat87
- · Replies 1 ·
What Speed Do You Need for the Rest of Your Trip to Average 2 m/s?
- nviander
- · Replies 3 ·
Finding the Final Temperature of Hot Coffee in a Cold Cup
- rlc
- · Replies 3 ·
Ohm's Law Validity: Does it Change with Heat?
- dlp248
- · Replies 1 ·
What is the optimal ratio of R/H to minimize the energy for a fixed volume?
- grandpa2390
- · Replies 3 ·
Work-energy theorem with friction
- Exspozed
- · Replies 7 ·
Uniform Circular Motion of a centrifuge
- Physicsnoob90
- · Replies 4 ·
What is the relationship between water stream diameter and distance from faucet?
- Corin511
- · Replies 1 ·
Setting up a extremization problem
- grandpa2390
- · Replies 4 ·
Total rate at which electrical energy is dissipated by resistors
- 24karatbear
- · Replies 6 ·
Why does the 30Ns vector get flipped in the Two Dimensional Impulse Problem?
- rusty711
- · Replies 3 ·
Find fourier series of wave function
- leroyjenkens
- · Replies 3 ·
Non-uniform circular motion problem
- PEToronto
- · Replies 5 ·
Solving a Physics Problem: Large Weight Over a Building
- brb
- · Replies 1 ·
Find Forces on Hand and Arm Holding a Ball
- Gwozdzilla
- · Replies 6 ·
Creating a Numerical Model for a falling Ball
- cavalieregi
- · Replies 5 ·
Scale in an elevator, time, mass, and velocity function given
- Brandan
- · Replies 2 ·
Acceleration proportional to frequency in SHM
- pyman999
- · Replies 2 ·
What is the Average Power Output of a Human Heart Pump?
- Annika
- · Replies 4 ·