Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Particle dynamics question. Electron in electric field.
- Amahia11
- · Replies 3 ·
Question about making vectors equilibrium
- preluderacer
- · Replies 11 ·
Easy question has me confused (Inclined plane)
- jamesweston0
- · Replies 12 ·
Why Does the Cosine Term Disappear in the Lorentz Force Calculation?
- Je m'appelle
- · Replies 3 ·
Calculating Moment of Inertia help
- paddlewheel99
- · Replies 3 ·
Spring constant for a solid not in equilibrium in a fluid
- Twoism
- · Replies 2 ·
Projectile help - really confused
- TN17
- · Replies 2 ·
Polar coordinates and kinematics
- Telemachus
- · Replies 1 ·
Frictional Forces: Find Max F for No Slippage of m1 on m2
- zhaos
- · Replies 3 ·
Where Did I Go Wrong in Calculating the Proton's Re-emergence Time?
- ahazen
- · Replies 2 ·
Position of an object in time and force
- preluderacer
- · Replies 5 ·
Terminal Velocity given Time at which velocity is .5Vt
- xslc
- · Replies 6 ·
Find how hollow a rock is given its density and its weight in water
- season89
- · Replies 3 ·
Projectile Motion problem. very lost.
- Chip90
- · Replies 24 ·
Calculating Aircraft Displacement & Velocity
- High_Voltage
- · Replies 2 ·
Sliding down a ramp against friction force
- Vader07
- · Replies 3 ·
What Should the Banking Angle Be to Prevent a Car from Sliding?
- AHinkle
- · Replies 5 ·
Temperature of water at different temperature mixed together
- semc
- · Replies 2 ·
Automobile drives into a brick wall
- bmoore509
- · Replies 3 ·
Runners Mary & Jane: Relative Velocity Magnitude
- yang09
- · Replies 1 ·
How Do You Calculate Work Done by a Variable Force from a Graph?
- rafaelpitta
- · Replies 1 ·
Tension problem: 2 ropes, 3 blocks
- JoshBuntu
- · Replies 16 ·
Block on an incline adjacent to a wall
- jaded18
- · Replies 11 ·
What is the Maximum Height Attained by an Object Launched from Earth's Surface?
- GOsuchessplayer
- · Replies 1 ·
Length of a pendulum based on speed and max angle
- lu22
- · Replies 10 ·
Resisting Force and Stopping Time of a Bullet in Wood
- Brianh1
- · Replies 1 ·
Solving Elastic Collisions Involving 3 Blocks
- lu22
- · Replies 1 ·
3 blocks no friction forces question
- cmwilli
- · Replies 5 ·
Hanging Point Charge Homework: Find q with E, m, & angle
- danvazb
- · Replies 2 ·
Inelastic collision blocks of wood
- nickname
- · Replies 3 ·
Quick Question about Acceleration/Gravity
- nukeman
- · Replies 14 ·
How to Find Equivalent Capacitance?
- aimee3
- · Replies 1 ·
Vector Mag: When Does u+w > mag(u)+mag(w)?
- KatlynEdwards
- · Replies 1 ·
What is the maximum tension in the makeshift rope for a jail escape attempt?
- 777lov3r
- · Replies 5 ·
What Is the Acceleration of a Car Traveling Left with Changing Speeds?
- ginteeg
- · Replies 1 ·
Calculating Sound Energy Emission from a Point Source with Constant Power Output
- FsLiu
- · Replies 14 ·
Deriving an equation vs memorizing a formula
- cdotter
- · Replies 3 ·
Are you positive about part 2 in Helicopter Kinetics and Motion
- DarPodo
- · Replies 2 ·
Accident Reconstruction; Work-Energy Problem
- uchicago2012
- · Replies 5 ·
Need an explanation on how to do a question applying Newtons Laws
- Asimans
- · Replies 1 ·
Kinematics Collision Question: Find Minimum Separation and Sketch
- P-Illiterate
- · Replies 1 ·
Calculating Moment About Axis: A Chiropractor's Procedure
- pinksunbeam
- · Replies 1 ·
Question about terminal velocity
- preluderacer
- · Replies 2 ·
What are some biodegradable egg drop project ideas?
- Madd069
- · Replies 18 ·
What is the magnitude and direction of the resulting force?
- .bonbon.
- · Replies 1 ·
What Is the Maximum Height of a Ball Thrown at 20m/s and 30 Degrees for 3.0s?
- PhysicsAdvice
- · Replies 1 ·
Find net force, given velocity?
- JettyZ
- · Replies 1 ·
How do I find acceleration of two block.
- cheater1
- · Replies 20 ·
Displacement Vectors: Understand x, y, z & i, j, k
- moondawg
- · Replies 2 ·
Rugby Player Problem: Solve for Time to Tackle
- badsniper
- · Replies 2 ·
How Do You Calculate the Tension in Cables Supporting a Suspended Loudspeaker?
- Allura
- · Replies 3 ·
Can One Ounce of Gold Really Be Pulled into a 50km Wire?
- kassib
- · Replies 3 ·
Calculating electrons emitted question.
- ConfusedElect
- · Replies 4 ·
Does the acceleration of free fall take air resistance into account?
- Andy21
- · Replies 3 ·
What is the charge on the capacitor being charged up by a 25 V battery
- ahazen
- · Replies 1 ·
How can the current density and magnetic field affect Earth's total current?
- juggalomike
- · Replies 4 ·
Potential energy for magnetic fields
- jaejoon89
- · Replies 2 ·
The change in velocity betwen two points
- Sleve123
- · Replies 6 ·
Find out the correct pressure difference if the level of the liquid
- zorro
- · Replies 3 ·
What Determines the Upward Movement of a 1m^3 Balloon in Water?
- luckis11
- · Replies 33 ·
Question about a car turning on ice.
- preluderacer
- · Replies 1 ·
Speed - the bus jump in the movie
- Phalon88
- · Replies 2 ·
What factors determine the acceleration of vehicles in a head-on collision?
- Jonathan Teas
- · Replies 2 ·
Discover the Magnitudes and Angle Between Two Forces: Resultant Forces Homework
- kalupahana
- · Replies 2 ·
2 dimensional motion - calculate magnitude of acceleration
- new^2^physics
- · Replies 1 ·
2 dimensional motion - calculate particles position
- new^2^physics
- · Replies 1 ·
One brick on another (friction, laws of Newton)
- Atx
- · Replies 5 ·
Change in gravitational potential energy of a satellite
- fcb
- · Replies 6 ·
How Do You Calculate Velocity in a Horizontal Slingshot Setup?
- J.live
- · Replies 14 ·
Sorting Fresh & Boiled Eggs with an Inclined Plane
- no183
- · Replies 2 ·
How high does a rocket go with a constant acceleration of 25m/s^2?
- lolbits
- · Replies 2 ·
Equilibrium Problem: Help Solving
- Matt1234
- · Replies 2 ·
Finding Lanch Angle (without initial velocity)
- peterbishop
- · Replies 3 ·
Force on a Current-carrying loop
- ninjarawr
- · Replies 5 ·
A doubt about frictional forces
- issacnewton
- · Replies 30 ·
Drawing Out Superman's Velocity Problem
- mathphysicnb
- · Replies 1 ·
Angle of Deviation: Plane Mirror Reflection
- Perpendicular
- · Replies 1 ·
Can AP Shell Pierce 2 Steel Plates? | Work Questions
- Die4Physics
- · Replies 1 ·
What is the Correct Center of Mass Calculation for a Man and a Boat?
- mohabitar
- · Replies 5 ·
Ranking materials in order of their refraction index.
- vf_one
- · Replies 1 ·
Sound Waves Conceptual Question
- ca2010
- · Replies 1 ·
Hot-air balloon (kinematics question)
- Sean1218
- · Replies 5 ·
Trajectory, Wind Resistance, and Acceleration
- Soaring Crane
- · Replies 5 ·
Vectors & Planes: Proving Perpendicularity to Plane Passing through Origin
- madah12
- · Replies 1 ·
Solving Velocity-Time Graph Homework: Egg Dropped/Thrown from Bridge
- Schrodes2011
- · Replies 1 ·
A falling flower pot (kinematics question), just need slight correction
- Sean1218
- · Replies 1 ·
What is the third force needed for equilibrium?
- preluderacer
- · Replies 5 ·
A child trying to catch an ice-cream truck (kinematics question)
- Sean1218
- · Replies 2 ·
Kinematics question (uniformly accelerated linear motion)
- Sean1218
- · Replies 7 ·
Grade 11 Physics: Projectile Motion Calculations
- brain123
- · Replies 4 ·
My rounding is off - can anyone try this?
- jaytm2291
- · Replies 10 ·
Is Tension in a Tow Chain Equal to the Weight of the Car?
- preluderacer
- · Replies 2 ·
*Need Help: Acceleration and gravity calculation - Thanks
- nukeman
- · Replies 3 ·
Struggling with an Assignment? Get Expert Help Now - Quick and Easy!
- nicknaq
- · Replies 3 ·
How Do You Calculate Potential Energy on Each Step of Stairs?
- WMM
- · Replies 22 ·
How Many Waves Does an MP100 Miss in 5 Seconds at 10 SPS?
- jnimagine
- · Replies 3 ·
Calculating the Angle for a Collision of Two Particles
- AnnaSuxCalc
- · Replies 2 ·
Static Friction / Need Help Solving for Theta
- DarPodo
- · Replies 9 ·
How Does the Position of the Man Change as He Walks to the Edge of the Boat?
- mohabitar
- · Replies 1 ·
Compton Scattering of Electron
- satchmo05
- · Replies 8 ·