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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Electronics: trying to understand grounding point
- Femme_physics
- · Replies 13 ·
Solving Inclined Plane Problems: Explaining the Triangle Relationship
- Peter G.
- · Replies 12 ·
Solving Combination Circuits for i, i1 & v
- timeforplanb
- · Replies 5 ·
Velocity of Plane Relative to Ground: Answer & Explanation
- wolves5
- · Replies 2 ·
Simple power calculations (or so I thought) PLEASE HELP EXAM ON TUES
- halcyondays
- · Replies 2 ·
What is the size of the image of a tree on a man's retina?
- anotherperson
- · Replies 5 ·
Determining Distance from Release Point Using Doppler Effect
- lackos
- · Replies 6 ·
How Fast is the Sun Losing Mass Due to Radiation?
- aeromat
- · Replies 1 ·
Special Relativity , firework question
- najisalem2009
- · Replies 5 ·
Spring constant and bungee jumping.
- anotherperson
- · Replies 1 ·
Solving Refractive Indexes Homework: Wavelength & Index of Refraction
- anotherperson
- · Replies 11 ·
How Does a Wave's Graph Change Over Time?
- anotherperson
- · Replies 2 ·
What is the perceived frequency of Bird B when it hears Bird A's screech?
- anotherperson
- · Replies 4 ·
Kinetics with Veloctiy/Acceleration Problem
- azn1x6flame
- · Replies 2 ·
Amplitude of a simple harmonic motion equation
- nehcrow
- · Replies 2 ·
Maximizing Power Transfer in Circuits: Seeking Help with Homework Statement
- DollarBill
- · Replies 3 ·
Neutron must travel so that kinetic energy = rest energy
- aeromat
- · Replies 2 ·
Atomic Ground State: What Is It?
- smscannell
- · Replies 1 ·
Circular Motion of a horizontal disc Problem
- Peter G.
- · Replies 4 ·
Entropy of a System: Answers Explained
- shally
- · Replies 4 ·
Why am I subtracting/adding normal force?
- gibson101
- · Replies 1 ·
Calculate Compression Stress for 500 kg Car Tire Ring
- Reema
- · Replies 1 ·
Formula to find maximum kinetic energy?
- Scippi
- · Replies 2 ·
Block on a frictionless, accelerating, inclined plane
- chronos98
- · Replies 27 ·
Understanding the Magnitude of T in Free Body Forces
- Scippi
- · Replies 2 ·
Simple Fluids Problem: Cylinder on Oil with Added Weight
- BlueDevil14
- · Replies 5 ·
Find the Young's Modulus of a Wire
- Reema
- · Replies 2 ·
Sound Waves (simple harmonic motion and pressure dilemma)
- Apophilius
- · Replies 4 ·
Tuning Fork Homework: Intensity & dB Level
- anotherperson
- · Replies 1 ·
Electrostatic Force: Finding mA:mB Ratio
- peterpang1994
- · Replies 13 ·
Velocity Vectors in Circular Motion: Understanding Acceleration
- Peter G.
- · Replies 4 ·
Why Does the Stefan-Boltzmann Law Use Temperature to the Fourth Power?
- teggenspiller
- · Replies 1 ·
Calculating Force Required to Throw a 1kg Ball 4s in Air
- nessan
- · Replies 1 ·
Acceleration time graphs and velocity time graphs
- anotherperson
- · Replies 1 ·
Need help with an energy-related question
- nehcrow
- · Replies 10 ·
A very difficult problem(hooke's law)
- DarkNess_wtc
- · Replies 13 ·
Ray Tracing and Lens Formula for Image Location
- anotherperson
- · Replies 7 ·
Spring Constants and compression
- anotherperson
- · Replies 3 ·
Solving 3D Statics Problem: Calculating Tension and Reactions
- Femme_physics
- · Replies 49 ·
Questions on Solution in Mechanics
- Trickster_00
- · Replies 1 ·
Finding Parametric Equations and Tangent Lines
- MozAngeles
- · Replies 3 ·
Question - Circular motion amusement park physics
- clintyip
- · Replies 18 ·
KVPY Project Ideas - Get Help & Advice Here
- Rohin.T.Narayan
- · Replies 10 ·
Calculating Wave Properties: Frequency, Wavelength, and Speed
- anotherperson
- · Replies 3 ·
What is Torque and How Does it Relate to Uniform Circular Motion?
- anotherperson
- · Replies 2 ·
Mastering Circular Motion: Tips for Solving Conservation of Energy Problems
- steejk
- · Replies 11 ·
Coefficient of friction from a graph
- nehcrow
- · Replies 5 ·
Bricklayer problem (involves springs)
- lowellite
- · Replies 2 ·
Circular motion kid-on-a-swing problem
- Femme_physics
- · Replies 9 ·
Calculating Axial Stress in a Concrete-Encased Steel Column
- steve321
- · Replies 14 ·
Can a horizontal bar exhibit SHM with rotating wheels?
- cupid.callin
- · Replies 1 ·
Calculate Work Needed to Remove Capacitor Plate at 100V | Physics Homework
- Noirro
- · Replies 12 ·
How Fast Does a Hawk's Shadow Move When Diving?
- garcia1
- · Replies 3 ·
Please help - magnus force and drag force equations
- pikula
- · Replies 1 ·
Why is tension in a rope constant despite increasing speed on a rough surface?
- phys_student1
- · Replies 2 ·
How do I rearrange this equation?
- mstephens88
- · Replies 15 ·
Constant speed and deaccelaration
- access
- · Replies 11 ·
What Are the Pressure and Speed of Water in a Fire Hose Tip?
- mm874
- · Replies 1 ·
Help on Hubble Constant, H0, h100 & Critical Density Rhoc
- Badger01
- · Replies 3 ·
Help with Oscillation - Can't Figure Out the Answer!
- cupid.callin
- · Replies 3 ·
Free Fall Question (Non-solvable 2nd order equation)
- phys_student1
- · Replies 3 ·
Working out the coeffient of friction?
- mm874
- · Replies 3 ·
Why Does My Quadratic Equation Not Solve in This Momentum Problem?
- nehcrow
- · Replies 2 ·
Calculating Initial Push Force for Box on Floor | Friction Problem
- zorro
- · Replies 4 ·
How Do You Calculate Angular Speed and Velocity of Clock Hands?
- Kikki:)
- · Replies 10 ·
Box Sliding Down Frictionless Ramp: Vector Equations for Determining Force
- access
- · Replies 3 ·
Ray Tracing with Diverging and Converging Lenses: A Quick Guide
- sltungle
- · Replies 6 ·
Loop related to Circular motion
- Kikki:)
- · Replies 4 ·
Deriving Resonant Frequency of Multiple Mass Mass-Spring Systems
- verd
- · Replies 1 ·
Basic Statics/Dynamics System of Equations (help)
- kroq
- · Replies 1 ·
Calculating Speed & Max Height of Thrown Brick (Geoff Capes 1978)
- physicsgurl12
- · Replies 7 ·
Solve Projectile Angle Homework: Range 7x Height, Flat Landscape
- hechen
- · Replies 5 ·
Calculating Force and Mass on a Lawnmower: A Gardener's Guide
- anotherperson
- · Replies 4 ·
Calculating Arc Length on a Circle with Cartesian Coordinates
- Kikki:)
- · Replies 5 ·
The Induced Voltage in a Straight Wire with Time Varying Magnetic Field
- mikec2003
- · Replies 1 ·
Solving Softball Problem: Syd's Pitch & Rachael's Move
- physicsgurl12
- · Replies 6 ·
Power and velocity physics homework
- ajmCane22
- · Replies 3 ·
How High Was the Elevator When the Marble Was Dropped?
- John O' Meara
- · Replies 1 ·
Calculate Velocity of Dropped Rescue Raft
- physicsgurl12
- · Replies 8 ·
Projectile Motion: Solving for Range at Various Launch Angles
- ama
- · Replies 3 ·
Solve Spring Constant: 40g Mass, 20N/m
- ajmCane22
- · Replies 6 ·
Angular Distance & Arc Distance: Homework Solution
- Kikki:)
- · Replies 2 ·
2 more questions related to Circular Motion and Speed
- Kikki:)
- · Replies 3 ·
Car and Train with Average Velocity
- wolves5
- · Replies 4 ·
Coulomb's law in three dimensions (xyz). HELP
- jezejeze
- · Replies 9 ·
How to calculate increase in kinetic energy due to acceleration?
- ingram010
- · Replies 1 ·
Calculate torque required to accelerate question
- ingram010
- · Replies 15 ·
Calculating the Upward Force on Support B in a Bridge-Torque Problem
- mburt
- · Replies 4 ·
What Happens After an Elastic Glancing Collision Between Two Unequal Masses?
- bingo92
- · Replies 3 ·
Is Resistance Inversely Related to Gradient in a Filament Bulb?
- mani18
- · Replies 5 ·
Newton's third law and a box push
- mk876
- · Replies 10 ·
Water tank and wave interference question?
- Kratos321
- · Replies 2 ·
Differential Equation: Frobenius
- jason17349
- · Replies 12 ·
How do you find the moment of inertia for wierdly shaped objects?
- jjellybean320
- · Replies 22 ·
Calculating Mass Ratio in Collision of Two Carts
- bigsaucy
- · Replies 1 ·
How is Mechanical Energy Conserved in a Spring-Block System?
- ajmCane22
- · Replies 4 ·
Questions on dynamics - Newton's laws of motion
- fterh
- · Replies 23 ·
Motion/Acceleration: free-fall gravity vs. ball being push downward
- nixm01
- · Replies 4 ·
SHM - Equation for Displacement
- Peter G.
- · Replies 2 ·