Introductory Physics Homework Help Forum

Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.

Threads

How was this ODE solution found? Doesn't seem to be the normal solution.

  • InvisibleMan1
  • · Replies 6 ·
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Uniform solid sphere rolling on inclined plane

  • antiparticle
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1
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Newton's Second Law vs. Energy Equations

  • JJBladester
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3

Solving for Constant acceleration

  • Lic2kill
  • · Replies 5 ·
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5

Calculating power output of a car

  • cherrydeee
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1

Distance Covered by Particle from A to +1 on Curve y=ax2

  • The legend
  • · Replies 4 ·
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4

Advice on my Tennis Ball Launcher

  • MMAiNNovaToR
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1

Projectile Motion airplane engine question

  • LoveKnowledge
  • · Replies 5 ·
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5

Passengers apparent weight on elevator when it's acceleration is negative

  • korinnewade
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2
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Understanding S36°E: A Quick Explanation

  • magic88
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2

Error Propagation Homework: Wheatstone Bridge

  • Yatty33
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1

Calculating Force of Gravity Between Earth & Mars

  • LoveKnowledge
  • · Replies 1 ·
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1

Help with block of ice on an incline, and friction

  • DrManhattanVB
  • · Replies 4 ·
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4

Calculating Gravitational Force: Baby vs Mars

  • LoveKnowledge
  • · Replies 2 ·
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2

Find drag given reference area and speed

  • korinnewade
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1

Optics finding index of refraction

  • Liquidxlax
  • · Replies 1 ·
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1

Calculate the average force F acting on car

  • cp-svalbard
  • · Replies 1 ·
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1

How Do You Calculate the Effective Stiffness of an Iron Bar?

  • ohheytai
  • · Replies 1 ·
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1

FBD Help: Tension and Slowing Down

  • woodrufs
  • · Replies 3 ·
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3

Projectile motion locust jump question

  • The_big_dill
  • · Replies 1 ·
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1

Calculating the electric field due to a wire of finite length

  • aftershock
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1
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5

Uncertainty in area of a circle

  • zero13428
  • · Replies 7 ·
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7
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Solve AC Voltage Form: RLC Series Circuit Power

  • Acuben
  • · Replies 3 ·
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3

Overcoming Friction Sliding Box.

  • PEZenfuego
  • · Replies 4 ·
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4

Solving Deceleration on an Inclined Road

  • iRaid
  • · Replies 1 ·
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1

Force and Motionfinding tension?

  • MetalAttack
  • · Replies 3 ·
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3

Uranium and Springs: Same Interatomic Distance & Stiffness?

  • ohheytai
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1

Finding the Distance Between Moving Animals with Constant Acceleration

  • derRoboter
  • · Replies 1 ·
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1

Novice Problem for Final Velocity

  • PhysicsAdvice
  • · Replies 2 ·
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2

Determine Kinetic Energy of Satellite

  • JJBladester
  • · Replies 4 ·
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4

Kinematics of rectilinear motion - multiple displacements

  • derRoboter
  • · Replies 1 ·
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1

Pulley system with spring and car EOM

  • tisquared
  • · Replies 4 ·
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4

Solving Water Flow from a Tank: Bernoulli's Theorem

  • zorro
  • · Replies 7 ·
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7
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10

Using ODE45 to Solve Matrix Differential Equations in MATLAB

  • madjid222
  • · Replies 1 ·
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1

Complete Radioactive Decay Equations and Identify Types

  • pat666
  • · Replies 2 ·
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2

Help form any one study physics in english

  • shobat
  • · Replies 13 ·
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13

Understanding the Drag Force Derivation: How Does the Process Work?

  • sponsoredwalk
  • · Replies 7 ·
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7

How do I calculate the force of gravity on a 1-kg mass at Earth's surface?

  • LoveKnowledge
  • · Replies 5 ·
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5

Total energy of satellite in orbit

  • cyt91
  • · Replies 2 ·
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2

Where is the Maximum Intensity of Radio Signal from Two Towers?

  • stphillips
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1

Calculating Resultant Force: Comparing Methods and Identifying Errors

  • vipertongn
  • · Replies 1 ·
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1

How Many Revolutions Does a Turbine Make When Coasting to a Stop?

  • Tina20
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1

Projectile Launch Speed: Solve 876j Work Homework

  • Chica1975
  • · Replies 3 ·
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3

Calculate Tension of Wire with 6kg Mass on 3.5m Rod

  • Chica1975
  • · Replies 3 ·
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3

Check for me this solution in General Physic

  • vuvan
  • · Replies 2 ·
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2

Solve Energy Dissipation in Resistor: I = 0.09 A, R = 80.0 Ω

  • roam
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1

NRamp Force Problem: Find F and Normal Force on 87kg Crate

  • Amberosia
  • · Replies 1 ·
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Calculate the avg speed phyics help

  • deaninator
  • · Replies 4 ·
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4

Graph descriptions of velocity, acceleration, speed and time

  • asz304
  • · Replies 1 ·
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1

Finding displacement from velocity and acceleration graphs

  • asz304
  • · Replies 2 ·
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2

Calculating Work Done by Friction: Step-by-Step Explanation for Beginners

  • Chica1975
  • · Replies 6 ·
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6

Program calculating bounces of a particle off circles.

  • firegoalie33
  • · Replies 2 ·
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2

How Is Voltage Across a Resistor Equivalent to That Across a Capacitor?

  • mcpoopants
  • · Replies 1 ·
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Solving Object's Velocity at Bottom of Frictionless Incline

  • GinnyG
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1

Two current carrying wires perpendicular to each other

  • iacyclones25
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1
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Power required for helicopter to hover.

  • Fruh2theline
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Min. downward force to keep object from slipping

  • kevnm67
  • · Replies 8 ·
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8

2 Masses 1 Spring Question Help

  • NeedPhysHelp8
  • · Replies 12 ·
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12
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2

Angles Transversed with Centripetal Acceleration

  • Durin
  • · Replies 2 ·
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2

Non-Uniform Circular Motion - Finding total acceleration

  • Defagment
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2
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3

Magnetic field: Bar magnet & coil. Number of Turns?

  • tjvogel
  • · Replies 2 ·
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2

Centripetal force on a curved bridge

  • aurao2003
  • · Replies 1 ·
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1

Energy, Inertia, Electric Field and Field Density Relations: Algebra help please

  • Green Destiny
  • · Replies 18 ·
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18
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1

Vector Addition: Calculate Magnitude of Sum

  • joej24
  • · Replies 3 ·
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3

Finding coefficient of friction from velocity alone

  • xSnoopy
  • · Replies 11 ·
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11

Finding cable forces from resultant force on mast top using unit vectors

  • imapeiceofwod
  • · Replies 6 ·
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6

What is the relationship between the reflection angles in a prism?

  • shyta
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1
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4

Density of a Bar of Soap/ buoyancy

  • raisatantuico
  • · Replies 3 ·
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How to Convert CGSEm to SI Units?

  • Uku
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1

Prove 2 cars moving on same road will not have Collision

  • ag35cosy
  • · Replies 4 ·
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4

What Is the Tangent of the Angle Between Vector A and the X-Axis?

  • joej24
  • · Replies 2 ·
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2

Reaching Alpha Centauri in 100 Years: Calculating Speed & Magnitude

  • lifeunderwate
  • · Replies 2 ·
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2

Forces and Laws of Motion Problem

  • ._|evo|_.
  • · Replies 3 ·
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3

Find Magnitude of Force F3 for Min Resultant FR

  • quantum_enhan
  • · Replies 1 ·
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1

What is the minimum radius of curvature of the curve?

  • gap0063
  • · Replies 1 ·
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1

Uniform electric field moving a proton and electron

  • gsquare567
  • · Replies 5 ·
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5

Magnitude of Acceleration without time?

  • drifterxs12
  • · Replies 5 ·
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5

Momentum and Pressure and Forces

  • Pawnag3
  • · Replies 3 ·
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3

What is the Final Velocity After Deceleration?

  • ScienceGirl90
  • · Replies 3 ·
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3

Relative motion and displacement

  • Scarlet_pat
  • · Replies 2 ·
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2

Finding the Launch Angle of an Artillery Gun

  • kvan
  • · Replies 5 ·
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5

Object moving in equilateral triangle - magnitude of acceleration

  • physos
  • · Replies 2 ·
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2

How Do You Calculate Instantaneous Acceleration in Physics Problems?

  • Leeee
  • · Replies 2 ·
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2

Does conservation of momentum apply when gravity acts on an object?

  • vuvan
  • · Replies 3 ·
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3

Scalars vs Vectors: Angular Displacement, Speed, Flux, Potential & More

  • tasnim rahman
  • · Replies 15 ·
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15

Help with natural log in this equation

  • bmed90
  • · Replies 2 ·
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2

Touque and Work from a Dipole Moment

  • Cllzzrd
  • · Replies 4 ·
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4

Having some trouble ie. help me (Newton's Laws of Motion - Basic stuff)

  • Supaiku
  • · Replies 4 ·
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4

Solving Elastic Collision Homework - Exam Prep Question

  • bobred
  • · Replies 3 ·
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3