Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
How Is Tension Calculated When Lifting a Bowling Ball?
  • physicsnobrain
  • · Replies 5 ·
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5
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3K
Linear algebra ordered basis problem
  • priyathh
  • · Replies 3 ·
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3
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2K
Solve following problems by using energy conservation theory
  • olebull
  • · Replies 1 ·
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1
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2K
Light refraction problem in water & air
  • MrMoose
  • · Replies 4 ·
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4
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8K
What Is the Initial Speed of a Horizontally Thrown Stone from Height h?
  • Radarithm
  • · Replies 7 ·
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7
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3K
Find angle of polarizing sheet given original & transmitted intensity
  • MrMoose
  • · Replies 4 ·
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4
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5K
Solve Mobile Pulley System: Acceleration of 3 Masses
  • CAF123
  • · Replies 47 ·
2
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47
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13K
How Does Current Frequency Affect Wire Oscillation in a Magnetic Field?
  • i_ammitija
  • · Replies 3 ·
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3
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3K
Tension in ropes between accelerating bodies
  • quietbang
  • · Replies 4 ·
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4
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4K
Soccer ball rebouncing of the goal post
  • brundlfly
  • · Replies 1 ·
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1
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3K
Bucket Swing Problem: Solving for Minimum Speed and Centripetal Acceleration
  • dark_elf
  • · Replies 2 ·
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2
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3K
Tension in a Pendulum String - Oh my
  • Engineering101
  • · Replies 4 ·
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4
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14K
Potential of a dipole in E field
  • raggle
  • · Replies 1 ·
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1
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2K
How Does the Formula for Acceleration in a Pulley System Work?
  • Yshai24
  • · Replies 2 ·
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2
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5K
Roller Coaster Physics in a Gravity-Less Park?
  • murrskeez
  • · Replies 1 ·
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1
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2K
What are the Corresponding Reaction Forces in a Suspended Bowling Ball System?
  • physicsnobrain
  • · Replies 12 ·
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12
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4K
Finding velocity after collision if you know mass and height. Help
  • astru025
  • · Replies 8 ·
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8
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3K
Distance Needed to Reach Terminal Velocity
  • elli
  • · Replies 2 ·
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2
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4K
Circular Motion: Deriving r for Two Objects on a String
  • makerfeldt
  • · Replies 2 ·
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2
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4K
Re: Physics Homework Help, Please
  • DrAnteater
  • · Replies 1 ·
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1
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3K
When does the mass of object comes into projectile motion equations?
  • survivorboiii
  • · Replies 1 ·
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1
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2K
What is the Maximum Altitude of a Rocket Launched with Constant Acceleration?
  • JohnCy
  • · Replies 8 ·
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8
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4K
Is Zero Net Force Required for Momentum Conservation?
  • RevX
  • · Replies 1 ·
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1
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2K
What Determines the Acceleration of a Box on a Moving Plank?
  • asaspades
  • · Replies 2 ·
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2
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3K
Did the ball travel far enough to make the goal?
  • azukibean
  • · Replies 8 ·
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8
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3K
Finding Vector C Using A-2B=pC: Magnitude, Direction, and Components
  • damdamct
  • · Replies 6 ·
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6
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2K
Identifying Freefall: Analyzing Graphs for Acceleration
  • komender
  • · Replies 4 ·
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4
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4K
Conservation of Energy in Conjunction With Momentum
  • Bashyboy
  • · Replies 15 ·
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15
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4K
Determine the magnitude of the magnetic field.
  • NasuSama
  • · Replies 5 ·
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5
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10K
Friction of a rope wound around a stationary rod
  • TheLil'Turkey
  • · Replies 10 ·
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10
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8K
Radius of centripetal force when on an angle.
  • Esoremada
  • · Replies 2 ·
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2
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3K
Finding acceleration and tension on an incline
  • soysauce
  • · Replies 2 ·
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2
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2K
How can I determine the force at support B in a rigid bar system?
  • coconut62
  • · Replies 3 ·
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3
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2K
What are my units when finding % diff. In kinetic energy?
  • astru025
  • · Replies 5 ·
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5
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3K
Motion in a Magnetic Field problem
  • kjlchem
  • · Replies 4 ·
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4
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9K
Relating to potential energy of a spring and mass on inclined plane
  • NewSoul
  • · Replies 4 ·
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4
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6K
Why Is Work the Same for Different Distances on an Inclined Plane?
  • lovelyrwwr
  • · Replies 2 ·
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2
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2K
What Forces Determine the Sliding of a Block on a Wedge?
  • makerfeldt
  • · Replies 2 ·
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2
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7K
How Do You Calculate Vector Components of a Rocket's Velocity?
  • josephcung
  • · Replies 2 ·
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2
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2K
Find minimum force to move block
  • the_sense
  • · Replies 4 ·
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4
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5K
What are the vector components of a rocket's impact velocity?
  • josephcung
  • · Replies 1 ·
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1
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2K
Maximizing Stopping Distance: Solving a Physics Concept Question with Three Cars
  • GuN
  • · Replies 9 ·
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9
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3K
Question about Newton's first law
  • coconut62
  • · Replies 2 ·
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2
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4K
A block spins around a circle with thrust
  • oneamp
  • · Replies 5 ·
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5
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4K
Deriving the Equation v^2 = u^2 + 2as
  • Marcsmeets
  • · Replies 13 ·
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13
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3K
Find beats formula using imaginary parts
  • mbigras
  • · Replies 7 ·
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7
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2K
What is the effect of overdampening in a circuit?
  • kickthatbike
  • · Replies 7 ·
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7
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2K
What Is the Final Temperature in an Adiabatically Expanded Air Chamber?
  • CAF123
  • · Replies 26 ·
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26
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12K
Calculating Tension in Frictionless and Massless Pulley Systems
  • BMcC
  • · Replies 6 ·
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6
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7K
Vertical Projectile Motion, Please Check My Answers
  • TheRedDevil18
  • · Replies 15 ·
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15
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4K
Finding Surface Charge Densities in a Spherical Conductor
  • MostlyHarmless
  • · Replies 17 ·
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17
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Physics momentum/ speed question. Need help
  • astru025
  • · Replies 6 ·
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6
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8K
Time period of oscillation and gravitation
  • Saitama
  • · Replies 40 ·
2
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40
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10K
Work,Energy And Power, Please Check My Work
  • TheRedDevil18
  • · Replies 7 ·
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7
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3K
Sketch of energy - height graph
  • songoku
  • · Replies 2 ·
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2
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4K
How to Convert a Velocity-Time Graph to a Position-Time Graph?
  • pebbles3
  • · Replies 4 ·
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4
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The Science Behind Why Peeling Off a Sticking Plaster Quickly Hurts Less
  • Fabric
  • · Replies 1 ·
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1
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Thermodynamics - example with answer
  • manal950
  • · Replies 6 ·
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6
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Does Opposite Acceleration Decrease Car Speed?
  • chrissy9624
  • · Replies 4 ·
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4
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2K
The wave fuction for particle in a box
  • VHAHAHA
  • · Replies 6 ·
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6
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What is the distance from the pivot when the seesaw is balanced?
  • Tepictoc
  • · Replies 27 ·
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27
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10K
Thermodynamics when work being negative or positive
  • manal950
  • · Replies 4 ·
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4
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8K
Finding work and velocity through acceleration
  • Pudim
  • · Replies 1 ·
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1
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3K
Find V(t) of train car with changing mass.
  • oddjobmj
  • · Replies 12 ·
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12
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5K
Grade 12 Physics: Banked Roads and Friction Analysis
  • pinkyboo
  • · Replies 2 ·
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2
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3K
Re: Entropy - Actually a question about working in Polar Coordinates
  • iScience
  • · Replies 6 ·
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6
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2K
Distance traveled sliding down incline
  • learnitall
  • · Replies 7 ·
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7
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6K
Diffraction grating with combination light
  • Hapablap
  • · Replies 1 ·
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1
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2K
Finding the Displacement Vector from 3 Given Vectors
  • fortifymagicka
  • · Replies 2 ·
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2
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6K
Centripetal force problems for dynamics
  • pinkyboo
  • · Replies 3 ·
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3
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3K
Experiment question- energy consumed from single shower
  • bigpapi4153
  • · Replies 1 ·
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1
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2K
Theoretical Uniform Magnetic and Electric Field
  • Yosty22
  • · Replies 1 ·
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1
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2K
Multiplicity of a two state system
  • d2x
  • · Replies 1 ·
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1
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4K
Kinematics and finding acceleration
  • JohnCy
  • · Replies 5 ·
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5
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2K
Modeling Thunderclouds with Point Charges and Conducting Planes
  • CAF123
  • · Replies 1 ·
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1
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2K
How Does the Pulley Rotate in a Modified Atwood's Machine with Friction?
  • NUBIG10
  • · Replies 3 ·
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3
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2K
A momentum question? Not too sure
  • noobphysicist
  • · Replies 23 ·
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23
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7K
Error Calculations: Calculating the Gradient & Error Propagation
  • BOAS
  • · Replies 1 ·
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1
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2K
Newton's second law clarinet problem
  • vanitymdl
  • · Replies 17 ·
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17
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10K
Find the work and heat transferred in a carnot cycle.
  • Kelsi_Jade
  • · Replies 7 ·
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7
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Determine Radiation pressure at angle given Perpendicular Pressure
  • MrMoose
  • · Replies 3 ·
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3
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4K
Solving for Building Height and Time in Horizontal Projectile Motion
  • harujina
  • · Replies 3 ·
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3
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3K
Gauss's Law for Spherical Symmetry
  • Vectorspace17
  • · Replies 3 ·
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3
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3K
Mass and Energy of Object that struck Earth and created moon
  • bowlbase
  • · Replies 2 ·
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2
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3K
How Is Oscillation Frequency Calculated in a Parabolic Potential?
  • AdrianHudson
  • · Replies 8 ·
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8
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Capacitance of two parallel plate capacitors
  • Violagirl
  • · Replies 7 ·
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7
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3K
Calculate the avg speed for the ENTIRE trip.
  • physicsnobrain
  • · Replies 9 ·
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9
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3K
Forces, find net with velocity and distance
  • yogoes123
  • · Replies 11 ·
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11
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4K
Solve Min Velocity for Ball Not to Touch Hemispherical Rock
  • 012anonymousx
  • · Replies 1 ·
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1
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2K
Calculating Average Force for a Baseball Batting Exercise
  • astru025
  • · Replies 2 ·
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2
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3K
Electric potential graph analysis
  • freshcoast
  • · Replies 4 ·
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4
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4K
Relating Light Angles in a High-Speed Reference Frame
  • bowlbase
  • · Replies 6 ·
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6
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3K
Projectile Motion Problem: Finding Distance and Collision between Two Particles
  • FaraDazed
  • · Replies 9 ·
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9
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3K
I in finding correct Coefficient of friction
  • akki2063
  • · Replies 3 ·
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3
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2K
Deriving a value for Full Width Half Maximum
  • Emspak
  • · Replies 1 ·
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1
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4K
Finding Tension and Resultant Force | 3000N Cable Force Problem
  • Sam Fred
  • · Replies 1 ·
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1
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3K
Sinking bucket - differential equations
  • markswabinski
  • · Replies 1 ·
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1
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2K
Why Does Susan Fall Forward When the Metro Brakes?
  • fogvajarash
  • · Replies 16 ·
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16
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6K
Calculating Tension Force After Elastic Collision
  • A. Aspart
  • · Replies 1 ·
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1
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2K
Calculate the capacitor capacity
  • oph
  • · Replies 56 ·
2
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56
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10K