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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Difficult problem involving friction and torque
- tjkubo
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This problem has got me stumped. I need the answer to make an A on a test
- tdcman92
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Tension of a rope in a pulley system
- winthos
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How Do You Calculate the Velocity of a Powerboat Relative to the Shore?
- kamran93
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Net Work Done on Weight: Calculating 394N Force
- PepeF.
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Must the tension in a string be uniform?
- jeremy22511
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A really close answer-why? (conter of mass)
- stanton
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How can collisions and energy be related in a horizontal table scenario?
- JJBrian
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Help with gravitational potential energy problem
- lilmul123
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What is the Required Speed for a Successful Long Jump Shot?
- kamran93
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Dynamics: Particle confined in slot and a pole moving
- silentwf
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A man jumps on a platform supported by springs (Work and Energy)
- Chandasouk
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Energy Loss in Capacitors: How Can We Account for It?
- SpartanG345
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Light incident on a grating for spectroscopy
- KaiserBrandon
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Calculating Force to Accelerate 6.3 kg Object at 44 m/s in 35s
- Ronaldo21
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I don't understand a symbol used in this question
- warfreak131
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Find Specific Gravity of 8.3 kg Block in Water
- jti3066
- · Replies 8 ·
Hockey Question: How Far Does Crazy Chretien Slide?
- rpullo
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Normal Force at a certain point in a loop
- mickjagger
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Calculate Weight of "Weightless" Ichthyosaurus in Metric Tonnes
- robertsa
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What Is the Minimum Horsepower Required to Prevent a Ship from Sinking?
- pierra
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Calculate Weight of 3m^3 Ichthyosaurus in Metric Tonnes
- robertsa
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Calculating Electric Field Strength at a Specific Point on the x-axis
- WINSTEW
- · Replies 16 ·
Conservation of Momentum Elastic Collision Problem
- efekwulsemmay
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Why is the Time Constant Used in Solving Inductance Problems?
- exitwound
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Calculating Displacement in Two-Dimensional Motion
- Gamegoofs2
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What Is the Net Force Exerted on an Object?
- cpuboye11
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Work done by air on a baseball
- Chandasouk
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What Is the Minimum Acceleration Needed for a Jumbo Jet to Take Off?
- cheerspens
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Hooke's Law Lab and theoretical y-value Really need some help
- exparrot
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Calculating the acceleration and kinetic energy of a bucket in a pulley system
- mmoadi
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Rotating bodies, Car around a corner
- Sakura22
- · Replies 13 ·
Free Fall/Constant Acceleration Problem
- cheerspens
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Work Done by Movers: Calculating Force Needed for Crate
- fattydq
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Horizontal velocity required to launch into orbit?
- fattydq
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Calculating the Radius of Curvature for a Car on a Hill
- waldvocm
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Solve Free Fall Problem: Object Launched at 25 m/s, Reaches 20m at 2.55 s
- cheerspens
- · Replies 2 ·
Free Fall/Constant Acceleration Problem
- cheerspens
- · Replies 1 ·
Block on inclined plane acceleration without rotating coordinates
- brainpushups
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What is the Upward Force of Water on a Sinking Stone?
- john411
- · Replies 3 ·
Solving Pool Table Problem: Cue Ball Momentum Change
- seraphimhouse
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Percentage of total beginning GPE converted to thermal/kinetic energy
- linkme251
- · Replies 1 ·
Mass being dropped on spinning disk problem NEED HELP
- jch11
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Pressure to lift a safety valve.
- tufferthandug
- · Replies 2 ·
Kinematics Formulas - Is the textbook right?
- Procrastinate
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Disk acceleration physics homework
- monkey9988
- · Replies 1 ·
Why is the induced EMF on an inductor equal to -L (di/dt)?
- zero_kilo
- · Replies 7 ·
How Do You Calculate Resistance in a Radial Cylinder System?
- asi123
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Solve Wave Superposition: 2Asin(7π(x+vt)) cos (3π(x+vt)) at t=0
- kpou
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Dynamics of Particles : Problems involving pulleys.
- s.opethian
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Angles in Two-Dimensional Elastic Collision
- axcess
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Finding Center of Gravity in a 4-Object Arrangement
- stanton
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How Do You Calculate the Moment of Inertia for Displaced Sheets?
- alaam2005
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What Mass Should the Resting Pucks Have to Minimize Collisions?
- phyzwiz69
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How does mass affect the outcome of a head-on elastic collision?
- phyzwiz69
- · Replies 1 ·
Calculating Work Done on Pulley by Falling Block
- r_swayze
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Here i go Again, Phy 11 Forces
- john411
- · Replies 3 ·
Understanding Frictional Forces in Rotational Motion
- petitericeball
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Finding the moment of inertia of a compound object
- dentulousfing
- · Replies 3 ·
How to Calculate Net Force in Vector Addition with Given Forces and Angles?
- Appelgater
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Geosynchronus Sattelite Question
- bleedblue1234
- · Replies 11 ·
Finding Force Constant of a Spring
- court2011
- · Replies 11 ·
Normal force, car on curved road
- EV33
- · Replies 3 ·
Kepler's Laws and orbiting satellite
- G-reg
- · Replies 10 ·
Determine the work done by the pushing force
- jacksonpeeble
- · Replies 7 ·
How Do You Calculate the Expectation Value <x²> for a Particle in a Box?
- CollectiveRocker
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Calculating Equilibrium Temperature for a Solar Hot Water System
- rinchan4
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Calculating power in a circuit with loops
- lagwagon555
- · Replies 1 ·
Why Does Extracting Density Affect My Moment of Inertia Calculation?
- kuahji
- · Replies 2 ·
Physics Project Conservation of momentum,energy, and projectile motion
- Wilson_Serway
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How can multiple pulleys decrease the force needed to lift a piano?
- fattydq
- · Replies 3 ·
Calculating Force on a Tank Hatch in Water
- VelvetRebel
- · Replies 2 ·
What would friction be in this pulley system
- spectravoid
- · Replies 1 ·
Magnetic field in a infinitley long wire
- hitman0097
- · Replies 1 ·
Energy Problem involving Friction and Spring
- Chandasouk
- · Replies 3 ·
Solving for average acceleration.
- Polyrix
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Introductory Power/Work Problem
- jacksonpeeble
- · Replies 6 ·
What is the maximum mass that can be hung from the end of a boom?
- a.wright
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Find acc. given coefficient of frict. on incline slope
- shizupple
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What Speeds Are Safe for a Banked Curve in Wet Conditions?
- a.wright
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Kinematics of a Slender Bar with Constrained End Rollers
- yoamocuy
- · Replies 8 ·
How Do You Calculate the Effective Spring Constant k_eff for Springs in Series?
- ksmith159
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Questions About Maple Seeds (Samara): Answers Inside
- havaliza
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What is the current through the emf in a circuit with capacitors and resistors?
- fluidistic
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Lensmaker's Formula: Solving for Image Distance i
- jpartdq
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Angular Momentum Homework: Find Moment of Inertia for Rotating Disc
- Skuzzy
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Solving Incline Ramp Problem: Find Normal Force
- 1irishman
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Friction force incline two masses connected by a string
- konto77
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Which object will reach point O first?
- najima
- · Replies 12 ·
Understanding Optics: Why is 2t changed to 2tn in problem 35.54?
- Niles
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Uniform Circular Motion confusion.
- DavidAlan
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What are the units of spring constant K?
- zaga04
- · Replies 2 ·
What is the Phase Constant for a Simple Harmonic Oscillator with Given Graphs?
- foundAnAnswer
- · Replies 2 ·
Solving a Physics Problem: Calculating Maximum Distance for Falling Fish
- pedro_infante
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Please. Need help with quadratic word problem
- tw1nky62
- · Replies 2 ·
Solving Mechanics Problem: Calculate Coefficient of Friction & Work Done
- Elumalai
- · Replies 1 ·
Newtons theory of gravity : satelite orbits and ellipses
- marshall104
- · Replies 3 ·
Cylindrical capacitor with a dielectric
- fluidistic
- · Replies 4 ·
How to locate Two spots where electric potential is zero
- crazuiee
- · Replies 1 ·
How Much Tension Holds a Snowboarder Airlifted by a Helicopter?
- lneedhelp
- · Replies 1 ·