Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
What are the calculations for a ball rolling up an incline plane?
- charan1
- · Replies 2 ·
Frequency of first intensity maximum for loudspeakers
- vaizard
- · Replies 1 ·
Archimedes Buoyancy Formula and washing astronauts
- TFM
- · Replies 6 ·
How Does Cantilever Length Affect Vertical Deflection?
- fangoro
- · Replies 3 ·
Why does total charge through a coil depend only on flux change, not rate?
- FourierX
- · Replies 7 ·
Calculate Velocity of 20g Bullet Striking 15kg Mass on Spring
- hodgepodge
- · Replies 4 ·
Velocity of Car & Truck After Collision: Solved
- Weezergames
- · Replies 2 ·
What Is the Maximum Kinetic Energy of a 2kg Body Moving Along the X-Axis?
- chaslltt
- · Replies 1 ·
Express your answer in Watts and horsepower
- Weezergames
- · Replies 1 ·
How Can Physics Principles Shape Frisbee on the Moon?
- optimus prime
- · Replies 1 ·
Angular rotation and speed with constant angular acceleration
- dr2112
- · Replies 3 ·
Shooting An Arrow: The Final Velocity
- DragonReign71
- · Replies 1 ·
Solving a Rotation Problem: Finding Maximum Velocity for a Cylinder
- iitjee10
- · Replies 5 ·
Elastic collisions and impulse problems
- philadelphia
- · Replies 1 ·
How Long Is the Football in the Air and How Far Does It Travel?
- Neliel06
- · Replies 1 ·
An organ pipe is 84 cm long and at a temperature of 20 degrees C.
- JohnnyB212
- · Replies 6 ·
Bird's total displacement in polar notation
- adidab12
- · Replies 5 ·
Wavelength - distance between a node and adjacent antinode
- keemosabi
- · Replies 4 ·
Is It A Plane? What Is The Final Velocity Of The Arrow?
- DragonReign71
- · Replies 4 ·
What Is the Correct Electric Field Calculation for a Dipole at Its Midpoint?
- Arg3n
- · Replies 3 ·
Solve Hanging Sign Problem: Tension in Two Ropes
- miewann
- · Replies 3 ·
What is the height of the cliff?
- adidab12
- · Replies 5 ·
Electric Field Strength & Work Calculation: 520V, .8cm
- KHurst
- · Replies 1 ·
MULTIPLE CHOICE: Rotational Inertia
- rvhockey
- · Replies 4 ·
Finding Amplitude of Oscillation for a Spring-Mass System
- 05holtel
- · Replies 4 ·
Maximum efficiency of a heat engine
- JJones_86
- · Replies 1 ·
Yo-YO being pulled - does my Answer make Sense?
- TFM
- · Replies 19 ·
Moment of inertia for physical pendulum
- BoogieBot
- · Replies 6 ·
How Is the Total Kinetic Energy of a Car Calculated?
- fishingspree2
- · Replies 2 ·
Question on Conservation of Energy
- itsjustwhoiam
- · Replies 4 ·
Frictional Moment produced by contact between rotating and non-rotating surfaces
- Kreat-Impulse
- · Replies 1 ·
How Do You Model Forces in a Two Mass Spring System?
- hurdler788
- · Replies 3 ·
Finding Mass of an Object [Fluid Mechanics]
- Minihoudini
- · Replies 2 ·
How Much Force Was Applied to Move a Car Over 127 Meters?
- Weezergames
- · Replies 1 ·
How Does a Centrifuge Separate Substances by Density?
- Alexis1210
- · Replies 1 ·
Solving MA: Sum of Forces = Mass x Acceleration
- Oblivion77
- · Replies 1 ·
Centripedal force velocity question.
- bballboy1191
- · Replies 3 ·
Calculating c in Schroedinger Equations
- rayfieca
- · Replies 1 ·
Elastic 2-D Collisions without given masses?
- kelseymclean
- · Replies 5 ·
How to Conduct a Double-Slit Experiment for a School Project?
- Jako
- · Replies 10 ·
Ball Thrown up in air, Velocity Question
- cbrowne
- · Replies 10 ·
What Is the Skydiver's Acceleration When the Parachute Opens?
- Melawrghk
- · Replies 10 ·
Which block has a greater final speed after being hit by a bullet?
- BC2210
- · Replies 14 ·
Conservation of momentum in x and y directions
- Maiia
- · Replies 2 ·
What Is the Radius of the n = 6 Bohr Orbit in O7+?
- rayfieca
- · Replies 5 ·
Conservation of momentum 2 step problem
- Maiia
- · Replies 4 ·
Calculating time/velocity for relativistic cosmic ray
- vaizard
- · Replies 5 ·
What is the solution to a physical pendulum problem involving a cord and a bar?
- fluidistic
- · Replies 8 ·
Coefficient of kinetic friction and acceleration
- Leid_X09
- · Replies 2 ·
Net electric field by two curved rods
- celee2
- · Replies 1 ·
What Output Rating (Watts) Do I Need for a Pump to Lift 8kg of Water per Minute?
- Bayley
- · Replies 6 ·
Impulse and Momentum problem on skaters
- DMOC
- · Replies 3 ·
How many bright fringes appear in a double-slit setup?
- noobie!
- · Replies 6 ·
How Do You Solve an Elastic Collision Problem with Different Masses?
- harkkam
- · Replies 1 ·
Fluid Flow in a Pipe: G-Greater, L-Less, E-Equal
- hellblazer970
- · Replies 3 ·
How Fast Does a Pivoting Meter Stick Swing?
- ljetoxox
- · Replies 1 ·
Finding Tarzan's speed at bottom of swing using energy
- austin1250
- · Replies 1 ·
Horizontal plate fields physics
- imdadasad
- · Replies 1 ·
What Are the Angles for Different Orders of Diffraction?
- noobie!
- · Replies 4 ·
Projectile Motion and Prime Axis
- kathmill
- · Replies 1 ·
What is the maximum payload a helium balloon can lift at 0 degrees C?
- Minihoudini
- · Replies 2 ·
How Do You Calculate Resultant Forces in Ball and Wall Collision Scenarios?
- curiouschris
- · Replies 4 ·
Projectile motion of ball and table
- sweedeljoseph
- · Replies 3 ·
Dust Particles: RMS Speed Calculation (3*10^13 mm/s)
- doggieslover
- · Replies 3 ·
Ball rolling up an incline Final Exam Review
- charan1
- · Replies 3 ·
Colliding balls with different masses
- devanlevin
- · Replies 3 ·
Making the Light Final Exam Review
- charan1
- · Replies 2 ·
Water Balloon Drop Final Exam Review
- charan1
- · Replies 1 ·
How Do You Calculate Net Torque on a Compound Wheel?
- Elbobo
- · Replies 5 ·
20 Hp or 10 Hpwhich one does more work?
- iFat
- · Replies 2 ·
Stellar Culmination: Determining Sidereal Time at the Moment of Arcturus' Peak
- mystery_witch
- · Replies 2 ·
What is the spring constant of the spring?
- JumpinJohny
- · Replies 8 ·
How Does Static Friction Affect a Sled on an Incline?
- cartoonorange
- · Replies 5 ·
Gravitational Field Strength of Space Station w/ N Astronauts
- fizics
- · Replies 10 ·
Gr12 Energy Prob: Solving for Waterfall Speed at Top
- Uncle6
- · Replies 2 ·
Police Car Sound Intensity Change
- JumpinJohny
- · Replies 4 ·
Radial Distance of Projectile Shot from Earth's Surface
- mariahkraft
- · Replies 2 ·
How to Tackle a Challenging Physics Study Guide?
- KennyBowen84
- · Replies 4 ·
Cannon on slope shoots shell horizontally to stop
- devanlevin
- · Replies 13 ·
Teaching myself physics of Perpeltion angle
- Crookes
- · Replies 1 ·
Momentum and Elastic Collisions: Finding Final Velocity Ratio
- fizics
- · Replies 2 ·
How Do You Calculate Torque to Determine String Tension in Physics Problems?
- tweety1234
- · Replies 12 ·
What is the Maximum Acceleration for Contact of Skidding Bicycle Tires?
- fizics
- · Replies 2 ·
How Does the Coefficient of Restitution Affect Collision Outcomes?
- nokia8650
- · Replies 2 ·
Can two independent sources of light be coherent?
- Sparkle2009
- · Replies 2 ·
Atwood Machine, Rotational Inertia, and Energy
- rvhockey
- · Replies 1 ·
Convert AB6.4F Hex to Binary, Octal, Decimal
- noobie!
- · Replies 1 ·
Can Formulas for Acceleration on an Inclined Plane be Written without Friction?
- physiker99
- · Replies 4 ·
How Does a Rod's Angular Velocity Relate to Its Movement in the X-Y Plane?
- suhaskowshik_92
- · Replies 2 ·
Capacitance and Resistance of a fluid
- TFM
- · Replies 5 ·
How Far is the Third-Order Bright Fringe from the Central Maximum?
- noobie!
- · Replies 1 ·
Why are my cross products for magnetic force giving wrong directions?
- jaredmt
- · Replies 1 ·
A Couple of Practice Questions
- MartyVice
- · Replies 3 ·
Finding the Initial Velocity for a 0.8m Volleyball Jump
- psmarz
- · Replies 8 ·
Determine expected value of each winnings
- Kristinanne
- · Replies 4 ·
Get Practice Questions: Top Resources
- psmarz
- · Replies 4 ·
Center of mass on inclined plane
- Elbobo
- · Replies 1 ·
Mean elongation of spring with temperature
- jorgen
- · Replies 5 ·
Tank position problem based upon sound of fire
- brick
- · Replies 1 ·
Heat needed for hydrogen gas with 50 K temperature increases
- Shayna
- · Replies 3 ·