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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Forces - friction, centripetal
- SA32
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How Do You Calculate the Length of a Swinging Rod in a Physical Pendulum?
- mikefitz
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How Do You Calculate Force on a Passenger in an Accelerating Elevator?
- amenos42
- · Replies 10 ·
Why Is Electrostatics Confusing in Physics Homework?
- shadowseal
- · Replies 1 ·
Energy and Simple Harmonic Motion.
- sailordragonball
- · Replies 5 ·
Energy and Simple Harmonic Motion - Part II.
- sailordragonball
- · Replies 4 ·
How Fast Does a Block Move on a Spring?
- Ronnin
- · Replies 21 ·
How Does the Phase Angle in SHM Equations Affect Displacement and Energy?
- sapiental
- · Replies 2 ·
How does torque relate to changes in angular momentum?
- fro
- · Replies 7 ·
Centripetal motion - swinging a bucket full of water
- SA32
- · Replies 2 ·
Simple harmonic oscillation question
- sapiental
- · Replies 2 ·
Understanding Electric Field: Why is it Greater at Sharp Points?
- dowjonez
- · Replies 3 ·
Cat & Turntable: Angular Velocity Comparison?
- physgirl
- · Replies 1 ·
How Does the Index of Refraction Change Across Different Materials?
- tigert2004
- · Replies 2 ·
How Can You Analyze LDR Response to Light Frequencies in AS Physics Coursework?
- hello30
- · Replies 6 ·
Period for real-life spring experiment
- doppelganger007
- · Replies 5 ·
How Do You Convert Radiant Power to Irradiance for Solar Radiation Testing?
- jspec26
- · Replies 1 ·
Kinetic Engergy in a Quantum Oscillator
- cowmoo32
- · Replies 6 ·
Why Water is the Preferred Coolant for Car Engines: 3 Reasons Explained
- jacklwk
- · Replies 7 ·
Distance problem, Using Launcher need to find objects distance
- crazydude032
- · Replies 2 ·
Angular Momentum: Clarifying a Problem
- fro
- · Replies 1 ·
Momentum-Intuitive feeling required
- jrm2002
- · Replies 1 ·
How Does a Pulley with a Mechanical Advantage of 2 Affect Force?
- moomoocow
- · Replies 1 ·
Calculating EMF from Coils in Rotating Magnetic Field
- Lonley_Shepherd
- · Replies 4 ·
Exploring Periods in a Pendulum Lab with Logger Pro
- 8parks11
- · Replies 3 ·
How can I convert kilograms to centimeters?
- feod2003
- · Replies 2 ·
Calculating Force Required to Drag a Carton of Books
- 8parks11
- · Replies 15 ·
How Does Mass and Height Affect the Angular Speed of a Rotating Bicycle Wheel?
- PascalPanther
- · Replies 1 ·
Block hanging from spring when a second block is added
- dtesselstrom
- · Replies 1 ·
Vertical Circular Motion on Excalibur Ride
- Yep
- · Replies 1 ·
How Is Acceleration Calculated for a Freely Falling Yoyo?
- vu10758
- · Replies 5 ·
Calculating Orbital Parameters of Halley's Comet
- conquertheworld5
- · Replies 8 ·
Is Strain Dimensionless According to Dimensional Analysis?
- wakejosh
- · Replies 2 ·
Oscillation equilibrium problem
- dtesselstrom
- · Replies 4 ·
How do i find the value of cos(theta)
- gunblaze
- · Replies 3 ·
Finding the Minimum Coefficient of Friction Equation
- BigMann
- · Replies 10 ·
Motion involving both translation and rotation
- vu10758
- · Replies 3 ·
Why is my angular velocity wrong when rings slide off a rotating rod?
- redribbbon
- · Replies 4 ·
Finding the density of a liquid with buoyancy
- bearhug
- · Replies 2 ·
What is the tension in the cylindrical wire?
- directdelta
- · Replies 1 ·
Angular Momentum (train on a track)
- bosco3234
- · Replies 2 ·
How Does Stirring Affect Water's Temperature Increase?
- cowmoo32
- · Replies 6 ·
Gravitational Attraction Between Two Balls
- mikejonesss
- · Replies 5 ·
Period T & Length: Can the Term in Parentheses be Constant?
- 8parks11
- · Replies 2 ·
Finding velocity taking the pulley into consideration
- vu10758
- · Replies 8 ·
Calculating Diving Board Force: 596N Diver, 1.9m from Fulcrum, 114N Board
- TheHamburgler1
- · Replies 15 ·
Is My Calculation for Cylinder and Piston Height Correct?
- S_fabris
- · Replies 5 ·
What will be the potential difference?
- Acez
- · Replies 1 ·
Deciding on a Field of Physics: A 4th Year Undergrad's Story
- simplyred
- · Replies 1 ·
What is the period of oscillation in this graph?
- mikefitz
- · Replies 2 ·
Calculating Gauge Pressure in a Steady Water Flow System
- Shlllink
- · Replies 2 ·
Hard nuclear physics cross section problem
- Max Eilerson
- · Replies 8 ·
Equilibrium problem with a building: I can't figure it out
- SalamanderGod
- · Replies 2 ·
I with some Equilibrium problems
- SalamanderGod
- · Replies 7 ·
Conservation of rotational energy
- vu10758
- · Replies 1 ·
Angular Momentum of a playground ride
- HasuChObe
- · Replies 5 ·
Finding the Maximum Time for a Rocket's Flight Using Kinematics
- sherlockjones
- · Replies 5 ·
Impossible problem? [Varibles ONLY]
- woox
- · Replies 2 ·
What Happens When a Force is Applied to a Yoyo?
- vu10758
- · Replies 4 ·
Calculating Forces in a Rotating Lunch Tray
- tmurphy12
- · Replies 2 ·
Viscosity and density of glycerol
- THE 1
- · Replies 1 ·
Paperthickness measured by radiation
- Minkowski
- · Replies 6 ·
Angular momentum and linear momentum
- teleport
- · Replies 8 ·
How Do You Solve a Pulley System Problem with Frictionless Incline?
- vu10758
- · Replies 6 ·
Calculate Entropy Change for Adiabatic Process of Argon Gas
- bullados
- · Replies 2 ·
Exactly Why doesn't the moon fall and strike the earth?
- bengaltiger14
- · Replies 5 ·
Bullet hitting block attached to spring
- needhelp83
- · Replies 2 ·
Calculating the required energy for throwing a tennis ball into space
- robotleckie
- · Replies 4 ·
How Does Speed Affect Car Fuel Efficiency and Required Forces?
- courtney1121
- · Replies 1 ·
Understanding the Relationship Between Static and Kinetic Friction on Wet Roads
- courtney1121
- · Replies 3 ·
What are the forces acting on a stationary box pushed against a wall?
- fro
- · Replies 7 ·
How Does Potential Drop Equal Supplied Voltage in a Resistance-Free Circuit?
- danago
- · Replies 7 ·
Gravity Problem Help - Find Acceleration of Gravity 3000 Miles Above Earth
- bengaltiger14
- · Replies 2 ·
Elastic Potential Energy Question tough
- cheechnchong
- · Replies 15 ·
Work Input vs Work Output in Pulley Systems
- moomoocow
- · Replies 1 ·
What will be the amplitude and frequency of vibration
- needhelp83
- · Replies 1 ·
Force acting on a particle between a tube and a wire (elektrodynamics)
- fara0815
- · Replies 10 ·
A Solid Sphere Release From Rest at the top of a Ramp.
- aZenki
- · Replies 1 ·
The Sun's Power Output: Solving for P
- mikefitz
- · Replies 6 ·
How Do Equilibrium and Elasticity Determine Stress and Strain in a Steel Post?
- eureka360
- · Replies 1 ·
Explanation needed in angular acceleration
- Schwatt!
- · Replies 3 ·
Solving the Problem: Work, Power & Friction
- soulja101
- · Replies 5 ·
Fluids bernoulli's equation problem
- fishingaddictr
- · Replies 3 ·
How Do You Calculate the Force to Accelerate a Cart in a Pulley Experiment?
- struby3
- · Replies 1 ·
What is the frequency of the bobbing raft with a 4990 kg load in fresh water?
- lizzyb
- · Replies 2 ·
How Quickly Can a Rock Be Hoisted with Limited String Strength?
- 8parks11
- · Replies 1 ·
Solving a Physics Problem: How Far Will the Ball Land?
- luke34
- · Replies 4 ·
What is the tension in the coupling
- 8parks11
- · Replies 2 ·
How Do You Convert Different Units of Measurement in Physics?
- soulja101
- · Replies 4 ·
Reason for Different Focus Distances in Converging Lens Lab
- jnimagine
- · Replies 12 ·
Find Speed and conservation of energy.
- soulja101
- · Replies 2 ·
Calculate ME of a Pendulum: Length 130 cm, Amplitudes 2.1 & 3.9 cm
- mikefitz
- · Replies 3 ·
Proving the Law of Conservation of Momentum: An Example
- lonelywizard
- · Replies 6 ·
High Road Low Road: Energy Principles Comparison
- MCHammer
- · Replies 20 ·
How Does Friction Affect Rotational Motion in Physics Problems?
- vu10758
- · Replies 2 ·
How Do You Solve These Challenging Physics B Problems?
- 8parks11
- · Replies 4 ·
Satellite Problems: Find Velocity of Satellite 3600km Above Earth
- scoles
- · Replies 5 ·
Radius of Curvature of Convex Mirror: -17.39 cm
- Niendel
- · Replies 1 ·
Finding torque (vector cross product)
- vu10758
- · Replies 1 ·
E&M Physics. Potential Difference
- zwebb
- · Replies 2 ·