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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If two books are tied together with a string
- UnD3R0aTh
- · Replies 9 ·
Which case generates emf by electromagnetic induction
- UnD3R0aTh
- · Replies 5 ·
Iron ball suspended in water filled to the rim
- UnD3R0aTh
- · Replies 11 ·
A coil of wire is placed along the axis of a solenoid?
- UnD3R0aTh
- · Replies 28 ·
Ice/Water Composition in Basic Thermodynamics
- "pi"mp
- · Replies 6 ·
What is the Direction of the Angular Momentum of a Bike Going Around a Circle?
- postfan
- · Replies 1 ·
Bar Swinging Up After Collision - Strategy
- postfan
- · Replies 6 ·
How Long Does It Take for a Collapsing Interstellar Cloud to Heat Up by 800K?
- CAF123
- · Replies 28 ·
What is the Angular Momentum of a Spinning Disk Subject to Applied Forces?
- postfan
- · Replies 10 ·
Elastic collision between rod and ball
- tilaib
- · Replies 2 ·
Iron ball hanging from a scale and suspended
- UnD3R0aTh
- · Replies 1 ·
Angular Momentum of Point Masses
- postfan
- · Replies 26 ·
The moment of inertia of a rectangular plate about its diagonal
- Outrageous
- · Replies 8 ·
Experimental Physics Report - Unexpected Results
- Tantalum
- · Replies 3 ·
Solve FBD Problem: M.asinθ=N, N.sinθ=Ma
- hav0c
- · Replies 8 ·
Choice of reference potential in electrostatics
- Vibhor
- · Replies 11 ·
Dropping objects air resistance
- Big-Daddy
- · Replies 1 ·
Circuit - how much voltage is going through R3?
- STEMucator
- · Replies 1 ·
Why is radiation pressure from reflection 2Ef/c cos²a?
- rodriguez1gv
- · Replies 3 ·
Magnitude of magnetic fields of two perpendicular wires
- 808techgeek
- · Replies 3 ·
Diverging lens image location with 2.7 cm object distance
- s3a
- · Replies 5 ·
Optics - Find the refractive index
- Saitama
- · Replies 32 ·
Electromagnetism and light bulbs
- STEMucator
- · Replies 2 ·
The physical pendulum - mass calculations
- HalcyonicBlues
- · Replies 2 ·
Why does friction act when v=rω in rolling without slipping?
- andyrk
- · Replies 3 ·
Moment of inertia by connecting two identical rods
- judas_priest
- · Replies 14 ·
Moment of Inertia of mud thrown on door
- PsychonautQQ
- · Replies 2 ·
Several problems put together in one thread, dynos, density etc.
- Fishingaxe
- · Replies 6 ·
How Does a Dielectric Medium Affect the Force Between Two Point Charges?
- Stealth95
- · Replies 13 ·
Laser experiment, determine angular velocity
- Gauss M.D.
- · Replies 1 ·
How to solve a problem with a bar laying against a wall
- Jay9313
- · Replies 8 ·
What does the Dynamometer show?
- Fishingaxe
- · Replies 9 ·
What is the relationship between intensity and amplitude in waves?
- Gauss M.D.
- · Replies 4 ·
Real 3D Image produced by concave lens
- Knightycloud
- · Replies 6 ·
How much force is in this bar? Am I correct?
- Fishingaxe
- · Replies 1 ·
Will a Particle Remain in Equilibrium if Three Reversed Forces are Removed?
- Final_HB
- · Replies 3 ·
Particle on an inclined plane formula proof.
- Final_HB
- · Replies 3 ·
Calculating electrical potential energy
- Gavinofree
- · Replies 1 ·
What Maximum Height Can a Tennis Ball Reach with Reduced Gravity?
- PerryKid
- · Replies 4 ·
Why can positron go unobstructed through lead?
- L-I-C
- · Replies 1 ·
Calculating Distance and Time for a Moving Car with Constant Acceleration
- PerryKid
- · Replies 6 ·
How to determine the maximum bending moment of a beam
- harvistar
- · Replies 2 ·
What force is needed to produce a constant speed?
- tjhero123
- · Replies 9 ·
Confusing linear momentum GRE question
- PsychonautQQ
- · Replies 5 ·
A particle is vibrating with f : Ut = 8 sin (1/2 pi t/T)
- sam2711
- · Replies 2 ·
How Do You Calculate Focal Length in a Two-Lens System?
- jones123
- · Replies 2 ·
Steel ball oscillating in a glass tube
- mbigras
- · Replies 8 ·
Initial velocity required for object to have x ke at y height
- fisiks
- · Replies 3 ·
Why Are the Mentioned Triangles Similar in the Explanation?
- user5
- · Replies 1 ·
How does this kind of DC motor work?
- jhast1
- · Replies 1 ·
Bernoulli's Equation with a ping pong ball
- shark1818
- · Replies 1 ·
Finding acceleration with tension between two points
- user5
- · Replies 12 ·
Problem with basic doppler effect question
- PsychonautQQ
- · Replies 2 ·
Intensity of the light in the light bulb what physicist described it?
- m_p_w
- · Replies 5 ·
Solve SHM Leaky Bucket: dT/dt Calculus Solution
- PsychonautQQ
- · Replies 2 ·
Electric motor load vs efficiency historical background
- m_p_w
- · Replies 2 ·
Greater degree of the slope=faster acceleration, historical backgroud
- m_p_w
- · Replies 7 ·
Static Charge Induction: Rod and Sphere Experiment
- Ammar Qasim
- · Replies 5 ·
Central Force with application at circle
- Arkavo
- · Replies 10 ·
Acceleration of Block B in a Constrained Motion Problem
- Saitama
- · Replies 6 ·
Calculating Displacement from a Velocity-Time Graph
- oldspice1212
- · Replies 7 ·
Finding wheel mass from suspended object's motion using torque
- PsychonautQQ
- · Replies 3 ·
Finding the Minimum Velocity for Sustaining Flight Using Dimensional Analysis
- Beer-monster
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What Wavelengths of Light are Used in Young's Double Slit Experiment?
- 5ymmetrica1
- · Replies 4 ·
Inelastic Momentum / Centripetal force problem
- PsychonautQQ
- · Replies 1 ·
Why Does My Pendulum Pin Support Reaction Calculation Differ from 299N?
- cambo86
- · Replies 1 ·
Displacement on a Position vs. Time Graph
- greenwave
- · Replies 2 ·
Why deuterium cannot undergo beta decay but tritium can
- STEMucator
- · Replies 6 ·
How Do You Calculate the Components of Vector C?
- donking225
- · Replies 2 ·
Find amplitude and frequency given positions and speeds
- gmark
- · Replies 2 ·
Satellite surrounded by four asteroids question
- tjhero123
- · Replies 5 ·
Acceleration of spool being pulled by ribbon wound around another spool
- postfan
- · Replies 4 ·
What is the acceleration of a sled in a tractor-pull competition?
- Enduro
- · Replies 1 ·
Potential energy per unit length in a string (sin wave)
- PsychonautQQ
- · Replies 3 ·
How Do You Calculate the Linear Speed of a Yo-Yo Using Energy Conservation?
- postfan
- · Replies 37 ·
How does friction affect tension in a statics problem involving belt friction?
- yaro99
- · Replies 1 ·
Angular momentum or work-energy balance?
- cambo86
- · Replies 2 ·
Mass falling while attached to wire
- mbigras
- · Replies 6 ·
Problem with Sines on both sides
- PerryKid
- · Replies 8 ·
Pivoted bar swinging top to bottom
- postfan
- · Replies 5 ·
Calculating Rotational Inertia and Speed of a Square Plate
- postfan
- · Replies 50 ·
What is the potential difference between two points in an electric field?
- tetoo
- · Replies 20 ·
Algebraic Approach to Calculating Time for an Object to Fall from a Given Height
- oldspice1212
- · Replies 4 ·
Work or Heat transfer to system?
- CAF123
- · Replies 34 ·
Solving a Uniform Rod's Angular and Linear Speed
- postfan
- · Replies 14 ·
Focal distance of lens submerged in water
- Gauss M.D.
- · Replies 1 ·
Solving Motion of Block A on Wedge B
- hav0c
- · Replies 3 ·
Solving for \(\theta\): A Geometry Refresher
- PerryKid
- · Replies 3 ·
Young's Modulus; Extension of a wire
- AJKing
- · Replies 15 ·
Thin Film Interference in Glass Plates: How Many Bright Fringes Will Be Seen?
- klawlor419
- · Replies 1 ·
Electrostatics net force question
- TheRedDevil18
- · Replies 5 ·
Electric circuits voltage flow question
- TheRedDevil18
- · Replies 2 ·
General Basic Projectile Motion Question
- spark693
- · Replies 7 ·
How To Approach Units and Problem Solving Questions?
- Wiggins2Magic
- · Replies 4 ·
Yes, your approach and calculations look correct. Good job!
- STEMucator
- · Replies 5 ·
What Is the Reaction Force to Earth's Gravitational Pull on a Book?
- Saitama
- · Replies 14 ·
Galilean form of the law of transformation of velocities
- user5
- · Replies 21 ·
Contradiction in Wave Amplitude, intensity and Conservation of Energy?
- SecretSnow
- · Replies 3 ·
Finding Average Force Applied On A Slope
- mynameiscosine
- · Replies 12 ·
Finding Moment of Inertia Using Integration
- student34
- · Replies 24 ·