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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Projectile Motion of Ball Problem
- jessedevin
- · Replies 5 ·
How Do You Calculate Vector Components in Physics?
- Rich52490
- · Replies 3 ·
Uniform Circular Motion-Velocity
- Guruu
- · Replies 4 ·
Solving a River Boat Problem: Distance Downstream
- blayman5
- · Replies 3 ·
Kinematics Equations (2 Problems)
- Johnny_07
- · Replies 6 ·
Calculating Acceleration Direction from Given Forces
- Nanoath
- · Replies 3 ·
What Speed Should the Second Ball Have to Meet the First at Its Peak?
- gtg141h
- · Replies 7 ·
Air Pressure Difference in a 13m High Gymnasium
- jason_r
- · Replies 2 ·
Astrophysics, simple parallax error
- dink87522
- · Replies 1 ·
Kinematics problem but no numbers given?
- jnimagine
- · Replies 48 ·
How Do You Calculate the Magnitude of the Sum of Two Vectors?
- WPCareyDevil
- · Replies 3 ·
Please help with an acceleration and distance problem
- science_rules
- · Replies 2 ·
How Does a Spring Balance Measure Tension in a Pulley System?
- SiYuan
- · Replies 1 ·
Archimede's Principle-Hot air balloon floating
- etagg
- · Replies 3 ·
What is the purpose of grounding a conductor?
- Domnu
- · Replies 1 ·
Heat-Transfer Mechanisms (HARD)
- spaghed87
- · Replies 2 ·
Calculating Crossbow Bolt Velocity
- haxxorboi
- · Replies 7 ·
Does this jump honor the concept of physics?
- crhscoog
- · Replies 4 ·
How Do You Calculate the Magnitude of Acceleration for a Particle in Motion?
- schrock
- · Replies 1 ·
Point charge attractioning a positive charge from infinity to 30cm
- goWlfpack
- · Replies 1 ·
Constant acceleration of skateboarder
- southernbelle
- · Replies 6 ·
Simplifying a Confusing Force Problem: Understanding Acceleration and Magnitude
- maniacp08
- · Replies 13 ·
Finding Input to Output Ratio for Steady Water Flow
- tony873004
- · Replies 1 ·
Which Position Has Zero Electric Field?
- Kathi201
- · Replies 1 ·
Solving Heat Loss Rate through R-19 Layer and Brick Wall
- yossup
- · Replies 9 ·
Calculating Temperature Rise of Air in Bicycle Pump
- yossup
- · Replies 3 ·
Turntable Acceleration question
- Husker70
- · Replies 8 ·
Uniform circular motion of a particle
- southernbelle
- · Replies 1 ·
What is the Acceleration of a Dropped Shell?
- Brit412
- · Replies 3 ·
How Do Positively Charged Electrons Affect the Net Electric Field at Point P?
- Aerosion
- · Replies 1 ·
What Is the Minimum Stopping Distance for a Car Traveling at 50 m/s?
- jo3jo3520
- · Replies 6 ·
SHM Platform Block Displacement
- kevi555
- · Replies 3 ·
Bob's Acceleration and Angle with the Vertical on an Inclined Plane
- Frillth
- · Replies 2 ·
Acceleration of a Train Problem
- Husker70
- · Replies 4 ·
How Does an Elevator's Acceleration Affect Your Weight?
- jo3jo3520
- · Replies 2 ·
Simple: Batteries and flow of charges
- AnXioZ
- · Replies 2 ·
Vertical motion with constant acceleration
- Kajayacht
- · Replies 1 ·
What Force Is the Second Man Exerting on the Pulley?
- cansucan
- · Replies 3 ·
Understanding Newton's First Law for Force Tables
- azn4lyf89
- · Replies 1 ·
Boyle's Law: J-Tube Experiments & Air/Water Effects
- sinicky
- · Replies 1 ·
Electric field of point charges
- texastud069
- · Replies 1 ·
Fluid pressure physics homework
- jason_r
- · Replies 3 ·
2D motion finding displacement direction and velocity
- u0467750
- · Replies 6 ·
Bob Throws Rock: Force & Recoil Speed
- Phoenixtears
- · Replies 3 ·
Force needed to push box down incline plane
- Physics_girl1
- · Replies 3 ·
Newton's Laws: Force of Tension
- mcode
- · Replies 1 ·
Forces on an object, Force vector
- Rileyss123
- · Replies 1 ·
Calculating Acceleration: Solving for the Force of a Clam
- Phoenixtears
- · Replies 3 ·
I can't get started can someone help. Kinetic Energy in term of momentum
- Husker70
- · Replies 3 ·
Solving Physics Questions: Energy Calculations and Transitions in Hydrogen Atom
- caseman
- · Replies 3 ·
What Is the Maximum Safe Depth for a Submarine with a 20 cm Window?
- jason_r
- · Replies 7 ·
Solve Projectile Motion: Angle=20°, Height=20m
- dsptl
- · Replies 9 ·
What is the magnitude of the force on each charge in a square arrangement?
- rawrlen
- · Replies 5 ·
How Does the Coriolis Effect Influence Water Drainage in a Sink?
- JoeyStorm
- · Replies 1 ·
Final Speed of Particle: 2D Motion Problem
- blayman5
- · Replies 3 ·
What is the Direction of Total Force Acting on an Object?
- Rileyss123
- · Replies 2 ·
Projectile Motion question help
- crazy_nuttie
- · Replies 3 ·
Calculating Torque and Work on an Electric Dipole in a Uniform Electric Field
- tropskaerf
- · Replies 2 ·
Is My Approach to Solving the Particle Motion Problem Correct?
- BeckyStar678
- · Replies 2 ·
What is the Maximum Acceleration for Two Connected Masses on a Pulley System?
- Kaze105
- · Replies 2 ·
How Far Will the Ball Travel Horizontally If Aimed at 33 Degrees?
- schrock
- · Replies 1 ·
How Far Should Goods Be Dropped from a Plane to Hit a Mountain Ridge?
- schrock
- · Replies 1 ·
Estimate the Time for the Sun to Disappear Again
- Kudo Shinichi
- · Replies 5 ·
Inertial Reference Frames in Train Experiments: Correct Statements
- PhoenixRising
- · Replies 4 ·
How Does Rocket Mass Loss Affect Exhaust Gas Velocity for Lift-off?
- PhyStan7
- · Replies 7 ·
Physics-Friction:push or held back?
- Physics_girl1
- · Replies 20 ·
What is the order of increasing magnitudes for the given set of 3D vectors?
- BrettL789123
- · Replies 4 ·
Question about 3rd law and normal force
- kmikias
- · Replies 1 ·
Calculate Unknowns with Sig Figs
- Quincy
- · Replies 3 ·
Charged Capacitor with Electron and Proton
- SundayST
- · Replies 2 ·
Deriving Velocity Field of Rotating Plate Using v = ω × r
- crystalplane
- · Replies 1 ·
How Do You Calculate the Filament Area Ratio Between Main and Car Head Lamps?
- marco123
- · Replies 1 ·
How Do Angles and Forces Affect Equilibrium in Physics Scenarios?
- ryuu21
- · Replies 9 ·
Finding net electric field at different locations
- nckaytee
- · Replies 9 ·
How Long Does a Flea Stay in the Air After Jumping? Find Out Now!
- jnimagine
- · Replies 10 ·
Thermodynamics - know process, work and change in entropy. Final temperature?
- HHveluj
- · Replies 4 ·
Coriolis Effect on Water in a Sink
- Concentrate
- · Replies 2 ·
Coherent Waves: What Are They & Must They Be Monochromatic?
- Muqaddas Jami
- · Replies 1 ·
Police car problem. i need it in an hour
- iffanytay
- · Replies 11 ·
Explaining Gauss' Law and Electric Field Direction on a Charged Square Sheet
- bodensee9
- · Replies 6 ·
Projectile Motion Problems: Calculating Maximum Angles and Heights
- hancyu
- · Replies 53 ·
Sailor's Wind Speed: 5.4mph East & 13.4mph SW/NE
- physics2hard
- · Replies 1 ·
What is the Impact Velocity of a Mouse Dropped by an Owl?
- Istinkatmath
- · Replies 7 ·
Motion (speed, acceleration, free fall, etc )
- ashx
- · Replies 1 ·
How Do Electric Fields Behave Around Concentric Charged Spherical Shells?
- ibaraku
- · Replies 1 ·
Simple Harmonic Motion questions
- hadroneater
- · Replies 4 ·
Finding the Maximum Angle for Projectile Motion of a Cannon
- Sculptured
- · Replies 5 ·
Relative Velocity of a pickup truck
- cbrons
- · Replies 1 ·
Calculating Pion Halflife: Gamma, Time Dilation, and Particle Decay
- blue2004STi
- · Replies 2 ·
Michelson Interferometer problem
- bcjochim07
- · Replies 2 ·
Buoancy (block floating in water)
- etagg
- · Replies 2 ·
How Does Acceleration Affect Velocity and Position in Kinematics?
- Spartan029
- · Replies 3 ·
What is the |vector A-vector B|
- s31t8n8
- · Replies 5 ·
Is Lifting and Dropping a Weight Considered Doing Work?
- Reverie29
- · Replies 1 ·
Finding Initial Velocity in a Car's Motion Using Graph Analysis
- fatherlewis
- · Replies 7 ·
How can I convert m/s to mi/h using only simple unit ratios?
- Jbright1406
- · Replies 1 ·
What is the force exerted by a seat belt in a head-on collision?
- rebeccc
- · Replies 1 ·
Tortoise vs. Hare Race: Length of Race Solved
- pelikon
- · Replies 1 ·
What Speed Is the Bat Catching Up to Its Prey?
- jrrodri7
- · Replies 1 ·
What is the breakdown of electric power sources in Salem, MA?
- Saladsamurai
- · Replies 11 ·