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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How Can XY = 1 and YZ = 1 Prove X = Z?
- ConeOfIce
- · Replies 2 ·
Deriving d = 1/2 a t2: Intro Physics Proof
- cosmic-barley
- · Replies 1 ·
Centripetal Acceleration and period of rotation
- Heat
- · Replies 8 ·
Finding Acceleration Of A Bucket Moving Downwards With A Pulley
- Lost_Prophet75
- · Replies 1 ·
General Physics Q: Find Acceleration, Velocity, Speed
- ken62310
- · Replies 1 ·
At what height does a boy lose contact with a frictionless hemispherical ice mound?
- kapopka88
- · Replies 19 ·
Solving Projectile Problem for Avalanche Angle
- veloix
- · Replies 2 ·
What Are the Velocities and Displacement of a Projectile Launched from a Cliff?
- ken62310
- · Replies 1 ·
How do force, velocity, and position relate on graphs?
- klm
- · Replies 1 ·
How Do You Calculate Tension in a Descending Elevator?
- yosette_ledezma
- · Replies 1 ·
Problem Understanding Physical Pendulum
- Saladsamurai
- · Replies 1 ·
Solving Tension in Rope for 26kg Pack Hanging Between Trees
- fubag
- · Replies 3 ·
Finding the Length of a Conducting Armature in a Magnetic Field
- Titan
- · Replies 2 ·
Net force on a passenger in a plane climbing at constant velocity
- calculus_jy
- · Replies 8 ·
What Is the Pressure Distribution Inside a Hypothetical Liquid Planet?
- ApeXaviour
- · Replies 11 ·
Refraction/Smallest curve of optical fibre.
- Berdi
- · Replies 2 ·
How Can I Extrapolate Vector v_{-1} from v_{0}, v_{1}, and v_{2}?
- makc
- · Replies 1 ·
Calculating Force and Power for Pushing Pallets
- vjov
- · Replies 1 ·
Superman Problem: Catching a Falling Student
- Edwardo_Elric
- · Replies 5 ·
Proving Trig Identities with Complex Numbers
- Oblio
- · Replies 22 ·
Projectile Motion: Calculating Distance and Velocity with Two Formulas
- jason.frost
- · Replies 3 ·
Quantum Tunneling: Electron or Proton Has Greater Probability?
- GravityGirl
- · Replies 1 ·
How Do You Solve Nodal Analysis Equations with Multiple Resistors?
- bengaltiger14
- · Replies 3 ·
Projectile Motion of a fired rocket
- mit_hacker
- · Replies 1 ·
An interesting Rotational Force Problem
- kidwithshirt
- · Replies 1 ·
Calculating Total Current Draw for a Heat Pump on a 240v Power Line
- niko
- · Replies 1 ·
Heat or Work: Changes in Thermal Energy
- eraemia
- · Replies 4 ·
Energy & Springs: Find Max Compression & Rebound Distance
- Niles
- · Replies 4 ·
What Happens to Image Formation with Different Angles Between Plane Mirrors?
- physicolic
- · Replies 3 ·
A man on an air mattress in a swimming pool
- Smessy
- · Replies 3 ·
Calculating Deflection of a Plumb Bob due to Rotation of Earth
- Destrio
- · Replies 1 ·
Difficult air resistance problem
- Xile
- · Replies 10 ·
Coefficient of kinetic friction on hockey puck
- ttk3
- · Replies 6 ·
Calculating Center of Gravity for Shape T: 60mm x 6mm
- JBemp
- · Replies 1 ·
What Angles Should a Fire Hose Nozzle Point to Land Water 2.0m Away?
- Sn0wPr0
- · Replies 6 ·
Angle of Child Sliding Down Hill
- shawshank
- · Replies 3 ·
What percent of uranium II remains after 10,000 years?
- amanaka2004
- · Replies 3 ·
How much ballast is needed to accelerate a descending research balloon upward?
- Destrio
- · Replies 14 ·
When will Kathy overtake Stan if he starts 1.00s before her with constant a
- ~christina~
- · Replies 7 ·
Answer: Friction and Force: Calculating Magnitude
- johnkd6
- · Replies 1 ·
Calculate the initial velocity of the elevator
- anglum
- · Replies 40 ·
Free Fall Equations on hot air balloon
- matace50
- · Replies 4 ·
Circular Orbits and Motion - Satellites
- BlueSkyy
- · Replies 4 ·
Calculating Acceleration for a Sports Car Stopping from 90 km/h in 50 m
- UpperNinety08
- · Replies 3 ·
Finding the Magnitude of a Dipole Moment
- jendead
- · Replies 4 ·
How Is the Tangential Component of a Moving Particle Calculated?
- gorkin
- · Replies 1 ·
Tension in cord holding a bundle in an accelerating elevator
- anglum
- · Replies 22 ·
Displacement with magnitude of deceleration
- Jacque77
- · Replies 7 ·
Calculating Forces for a Sled on an Inclined Hill
- anglum
- · Replies 27 ·
Calculating the Free Fall of Two Balls
- Robdog
- · Replies 6 ·
Race to the Finish: Ed vs Harry
- lostfan176
- · Replies 3 ·
Ball projected from table: finding height when velocity is at 46.4°
- perfect_piccolo
- · Replies 13 ·
Electric field of a uniformly distributed rod
- tongpu
- · Replies 2 ·
Heating in Buildings: Heat Loss During Nighttime
- rootX
- · Replies 1 ·
How Do Lifeguards' Forces Affect Raft Movement?
- anglum
- · Replies 4 ·
How Do You Calculate Jimmy's Car Distance and Height on the Ramp?
- Remulak
- · Replies 6 ·
How High is the Apartment House from Which Balloons Were Dropped?
- Palmtree Panic
- · Replies 4 ·
Net force on a crate pulled in four directions
- anglum
- · Replies 4 ·
Calculating Projectile Motion and Speed: Vertical and Horizontal Components
- texmex
- · Replies 3 ·
Weight/mass of object on moon/earth
- anglum
- · Replies 5 ·
Seeks Solution to L-Shaped Land Division Puzzle
- tiggerr129
- · Replies 2 ·
Why do projectiles with different horizontal velocities land at the same time?
- gary_shuford
- · Replies 1 ·
Speed and centripetal acceleration of satellite 690 km above Earth
- tjcreamer9
- · Replies 3 ·
Calculating Rotation and Movement of a Rotating Fan at 0.17m Radius
- tjcreamer9
- · Replies 2 ·
Two-dimensional motion practice
- gary_shuford
- · Replies 1 ·
Bead sliding on rotating string between two points
- chopramon
- · Replies 2 ·
Projectile motion with volcanoes, basketballs, and measuring gravity
- Lorelyn
- · Replies 1 ·
Determining an Equation of Motion
- MASH4077
- · Replies 3 ·
How Do Three Connected Conducting Spheres Share Total Charge?
- mitleid
- · Replies 1 ·
Max Speed Banked Curve: Calculating Friction Coefficients for Trajectory
- frasifrasi
- · Replies 4 ·
Why use conservation of mechanical energy for aircraft landing and falling ball
- Titan
- · Replies 4 ·
Relativistic energy and momentum questions.
- MathematicalPhysicist
- · Replies 7 ·
Finding Initial Velocity of a Rock Kicked off a Cliff
- saber1357
- · Replies 2 ·
Scale reading in elevator accelerating vs decelerating
- dnt
- · Replies 1 ·
What is the Centripetal Acceleration of a Stone in Circular Motion?
- saber1357
- · Replies 7 ·
Determining Distance and Final Velocity for an Object with 3D Vectors
- fubag
- · Replies 4 ·
Six thermodynamics and heat questions about ice, work, and thermal energy
- kinarere
- · Replies 1 ·
Calculating Energy of Electron with T=0.0017
- vicks
- · Replies 4 ·
Equations of motion and proper Significant Digits.
- JamesJames
- · Replies 1 ·
Calculating Electric Field Outside a Spherical Conductor
- bobca117
- · Replies 8 ·
Expressing waves in complex form
- inner08
- · Replies 4 ·
Induced charge - infinite plates
- mitleid
- · Replies 3 ·
Why does Kepler's third law give 38.56 AU for Halley's comet instead of 17 AU?
- ehrenfest
- · Replies 11 ·
How Long Does It Take for a Bullet to Stop in Wood?
- envoystud
- · Replies 1 ·
Motion Problem (2-D): Find Pushoff Speed & Time in Air
- sweatband
- · Replies 1 ·
Deriving the rate time equation for a Jerk (J)
- ~christina~
- · Replies 16 ·
How can I solve the proof for a projectile fired up an incline?
- Epiphone
- · Replies 11 ·
How to Solve Projectile Motion Problems: Breaking Motion into Components
- gary_shuford
- · Replies 15 ·
Acceleration Problem: Velocity Zero?
- starks.L
- · Replies 4 ·
Will a 30 N block move with 48 N applied and friction coefficients 0.650 and 0.420?
- rcjroxanne
- · Replies 2 ·
What was the angular velocity of the spear when it left his hand?
- gary_shuford
- · Replies 3 ·
Acceleration and tension of block on a table
- kselyk
- · Replies 2 ·
Sound attenuation experiment with tube, materials and oscilloscope
- fisicasound
- · Replies 1 ·
Non conservative force of a wave on a surfer
- thatgirlyouknow
- · Replies 3 ·
Equation of Motion for a Projectile Under Quadratic Air Resistance
- Oblio
- · Replies 117 ·
Projectile Motion of a thrown stone
- willingtolearn
- · Replies 7 ·
How Much Force to Pull a Platinum Ring from Water?
- iskar
- · Replies 1 ·
How Does Tension Affect Friction and Acceleration on a Horizontal Surface?
- ttk3
- · Replies 1 ·
Prove sin²θ + cos²θ = 1
- Propaganda777
- · Replies 12 ·
Kinetic Friction of shoved box of books
- BBallman_08
- · Replies 2 ·