Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Velocity problem (only distances are given)?
- driftk
- · Replies 5 ·
Projectile Motion wind acceleration
- soul5
- · Replies 5 ·
Potential Energy of a roller coaster cart
- crazydog
- · Replies 1 ·
How Do You Calculate Tension in a Crane's Cable in Static Equilibrium?
- wesDOT
- · Replies 4 ·
Calculating Heat Transfer from Boiling Water on Skin
- dcramps
- · Replies 5 ·
Work done by brakes stopping a car before a cliff
- wearegay
- · Replies 4 ·
Ur in a room with a magnet and an iron bar how do u know which one is the magnet
- cragar
- · Replies 23 ·
Angular momentum change in a rolling tire tilted 10°
- agentx
- · Replies 2 ·
Refridgerator Problem: Where Did I Screw Up?
- EstimatedEyes
- · Replies 1 ·
Work, energy and forces in a horizontal plane
- The Liberator
- · Replies 6 ·
Work, force, power turbine pump problem
- joseg707
- · Replies 5 ·
Is Momentum Conserved with Different Force Directions and Types?
- dherm56
- · Replies 1 ·
Calculating Average Force on Proton in Metal Film
- dcangulo
- · Replies 1 ·
Solving acceleration, velocity, distance and displacement word problems
- BlondeAngel#1
- · Replies 1 ·
Finding the ratio of moon to Earth density given surface gravity
- nns91
- · Replies 3 ·
Roller coaster Conservation of Energy problem
- joseg707
- · Replies 4 ·
Light Year Question: When Will We See It?
- roxxyroxx
- · Replies 2 ·
Block on 30° slope connected to drum by string
- Nick_L
- · Replies 6 ·
Finding magnitude of electric field strength
- Chi Futbol
- · Replies 4 ·
What is the force on an electron traveling parallel to the wire
- stonnn
- · Replies 3 ·
Finding forces on a beam leaning against a frictionless wall
- wesDOT
- · Replies 3 ·
How Do I Include Tension in a Free Body Diagram?
- okgo
- · Replies 1 ·
Quick Divergence Theorem question
- Stef42
- · Replies 4 ·
Mass and Acceleration of a Balloon in General Terms
- SniperArchety
- · Replies 6 ·
Displacement of olive-nut center of mass with applied forces
- ChazyChazLive
- · Replies 3 ·
Identifying traveling waves and their velocities in differential equations
- NutriGrainKiller
- · Replies 8 ·
Finding torque on a baseball bat held at one point
- semaj810
- · Replies 6 ·
SR problem in book seems to be faulty
- Mr.Miyagi
- · Replies 1 ·
Impulse and momentum problems with truck collision and fission
- euro-ignit3
- · Replies 4 ·
Rotational Inertia and Torque for a Spinning Frisbee
- Nick_L
- · Replies 4 ·
Find current with give volts and kWh
- cwesto
- · Replies 4 ·
How Can You Create a Temperature-Independent Resistor Combination?
- Kudo Shinichi
- · Replies 5 ·
[Kinematics] Question involving quadratic equation.
- Hn.
- · Replies 6 ·
Centripetal Acceleration lab question
- EBM
- · Replies 3 ·
Determining Cable Tension in a Suspended Beam System
- semaj810
- · Replies 5 ·
Three rotational kinematics and energy problems
- silentsaber
- · Replies 4 ·
Latent Heat Q: How to Lower Temp of 125 g Water to 12°C
- veronicak5678
- · Replies 3 ·
Electrostatics, coulomb force between 2 charges
- Dell
- · Replies 2 ·
Voltage drop in Capacitors and Lightbulbs
- kkroo
- · Replies 2 ·
Particle's position as a function of time - Integration
- phyzmatix
- · Replies 13 ·
Tension At Two Points With Acceleration
- myxomatosii
- · Replies 1 ·
Wheelbarrow and load advantage (i think)
- armbrecht
- · Replies 1 ·
Find the constant acceleration of the train
- Quang
- · Replies 1 ·
So, Lightning Decides to Strikes a Sphere
- mars3554
- · Replies 3 ·
Finding center of mass to balance a tire using torque and inertia
- Wobble
- · Replies 8 ·
Calculating the Semimajor Axis of Pasachoff's Orbit
- tnutty
- · Replies 2 ·
A mass attached to a cord around a disk
- disque
- · Replies 1 ·
How to find the angle from the vertical?
- xbabybrittyx
- · Replies 1 ·
How Does Force Affect the Center of Mass and Momentum?
- TwinGemini14
- · Replies 1 ·
How Is Maximum Speed Calculated for a Block on a Vertical Spring?
- Dauden
- · Replies 1 ·
Finding force of friction with only applied force and acceleration given?
- Trini_Bwoi
- · Replies 1 ·
What is the Doppler Effect of a Car's Music at Different Positions?
- Intrusionv2
- · Replies 1 ·
Combination Circuit Question: Determining Current
- Zaphia
- · Replies 3 ·
What Happens to the de Broglie Wavelength as Mass Approaches Infinity?
- forty
- · Replies 2 ·
Special relativity (overtaking)
- bigevil
- · Replies 3 ·
Need to find the distance but how?
- windrar
- · Replies 1 ·
Question on Heisenberg uncertainty principle
- Nivlac2425
- · Replies 2 ·
Finding the height of the Sears Tower from gravity gradient
- tnutty
- · Replies 19 ·
Finding the Velocty of A swinging Object
- MRGE
- · Replies 3 ·
Force Required to move a 63.5 kg mass.
- cloakblade5
- · Replies 2 ·
How Can I Calculate Determinant, Cofactors, Adjugate, and Inverse of a Matrix?
- LaraCroft
- · Replies 2 ·
Maximum current and Electric field in wire
- leggomaeggo
- · Replies 1 ·
Tension / Forces Question 40S Physics. Test Tommorow
- Brodo17
- · Replies 9 ·
Solving the Physics of a Rolling Loop-the-Loop
- TG3
- · Replies 10 ·
Calculating Current Requirement for Heating 10,000 Liters of Water in 24 Hours
- zebra1707
- · Replies 12 ·
What is the equation for calculating energy carried by a wave?
- yoq_bise
- · Replies 3 ·
Magnetostatics - Determine the magnetic field
- confusedgirl
- · Replies 4 ·
Finding Velocity given angle and distance.
- odyssey4001
- · Replies 5 ·
Finding the surface charge density
- jheld
- · Replies 6 ·
Magnetic Field formula Question
- WrathofHan
- · Replies 6 ·
The Fill Factor of the Silicon Photocell
- ZaZu
- · Replies 2 ·
What happens when a wave's wavelength is compressed by moving objects?
- Intrusionv2
- · Replies 2 ·
Weight on a neutron star ( universal gravity)
- tnutty
- · Replies 1 ·
Oscillations in a magnetic field
- w3390
- · Replies 1 ·
1995 Free Response AP Physics Mechanics
- danmath514
- · Replies 1 ·
Average distance between water molecules
- hgbreton
- · Replies 3 ·
Minimum Current for Magnetic Levitation: Is It Safe for a Magician's Act?
- w3390
- · Replies 4 ·
How Does the Offset Current Affect dVo/dt in an LM353 Op-Amp Circuit?
- swuster
- · Replies 1 ·
Calculating the Period of a Planet Orbiting the Sun
- tnutty
- · Replies 1 ·
Solve Power-Law Spiral With Angular Momentum L
- simms_mj
- · Replies 1 ·
Equilibrium Shift and Magnitude in Non-Intertial Frame?
- nissanztt90
- · Replies 2 ·
Power and Intensity of Radio Waves
- y_chen
- · Replies 2 ·
Finding Net Force: Solve w/ F=ma
- okgo
- · Replies 4 ·
Calculating Horizontal and Vertical Speeds of a Baseball
- Crichar1
- · Replies 2 ·
Finding Electric Flux of Cube with E Field
- Dell
- · Replies 11 ·
Output of a transformer plugged into a DC voltage source by mistake?
- w3390
- · Replies 1 ·
Momentum Relative to Surface / Plug-and-Chug
- Lank
- · Replies 2 ·
Simple Force and Motion problem?
- alexas
- · Replies 1 ·
Finding x and y components of resultant force from two forces
- alexas
- · Replies 1 ·
Volume/volume and weight/weight persentages of the constituents in a composite
- mitnord
- · Replies 1 ·
How fast is this roller coaster?
- Bottomsouth
- · Replies 3 ·
Force values for 600g object from acceleration-force graph
- alexas
- · Replies 1 ·
How Fast Do Electrons Drift in an Iron Wire?
- jheld
- · Replies 1 ·
How to find tension between the two blocks?
- confused2009
- · Replies 1 ·
Small Oscillations around equilibrium
- LiorE
- · Replies 4 ·
How Many Photons Per Second Does a Blue Laser Emit?
- fball558
- · Replies 1 ·
Angular speed of vertical rod tipping over from rest
- invadertak
- · Replies 2 ·
Kinetic Energy of a wood on a spring?
- Bottomsouth
- · Replies 1 ·
Why does Coulomb's formula give positive force for like charges?
- nikromancer
- · Replies 2 ·
How Do You Calculate Average Back EMF in a Rotating Coil?
- marpple
- · Replies 18 ·