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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Relativity - Length Contraction
- pat666
- · Replies 2 ·
Heat released when 500g of water vapor condenses
- glori1988
- · Replies 3 ·
Solving for time and final velocity in a basic physics equation
- tomtomgreg
- · Replies 2 ·
What Is the Minimum Average Speed Required to Catch the Ball?
- sdrohrig
- · Replies 1 ·
How far must he now travel to reach base camp?
- FriskeCrisp
- · Replies 7 ·
Calculating Impedance and Voltage Drop in an RLC Circuit
- ProPatto16
- · Replies 2 ·
Magnetic flux through a square loop at 30° to a 2.6T field
- pat666
- · Replies 8 ·
Three vector problems with solutions
- parth0009
- · Replies 1 ·
Calculating Halley's Comet Period and Next Approx. Viewing Date
- carney
- · Replies 5 ·
What Is the Force Constant of a Spring and Does It Change with Mass?
- Ogakor
- · Replies 2 ·
Solving for t and h when both are unknown.
- BUConsul
- · Replies 1 ·
Rail gun with non-constant acceleration energy problem
- pat666
- · Replies 4 ·
Finding Instantaneous acceleration from a velocity-time graph
- MitsuShai
- · Replies 4 ·
Radius of 2nd Sphere: Find Mass 5x Greater than 1st
- afg_91320
- · Replies 3 ·
Calculating Distance and Speed of a Falling Hammer
- kelsobrooks
- · Replies 1 ·
Magnitude of the charge on each plate
- kvarner83
- · Replies 1 ·
Electric field direction and hovering charged object
- illidari
- · Replies 1 ·
What is the Tension of a Tie Rope?
- Ckrueger11
- · Replies 1 ·
What are the Components of a Vector Given its Magnitude and Direction?
- sp33dk1lls
- · Replies 10 ·
What does T represent in this energy conservation equation?
- zoner7
- · Replies 2 ·
Calculating Free Fall Distance from Time Interval Using Kinematic Equations
- astenroo
- · Replies 4 ·
Diffraction grating wavelengths question
- ombudsmansect
- · Replies 1 ·
Deriving acceleration from velocity
- uchicago2012
- · Replies 4 ·
Latent heat and phase change question
- mizzy
- · Replies 5 ·
Calculating Coefficient of Friction for Moving a Piano
- xyril1325
- · Replies 3 ·
Golf ball bouncing: average acceleration during floor contact
- matthew1991
- · Replies 3 ·
Conversion of work to heat: Getting the Sun's temperature inside a braking block
- hasan_researc
- · Replies 2 ·
What Is the Incident Photon Wavelength in Maximum Energy Compton Scattering?
- zing478
- · Replies 4 ·
Tension with two strings and angles
- Ckrueger11
- · Replies 3 ·
How Do You Solve for 'v' in the Equation F = qE + qvB?
- Dark_Dragon
- · Replies 3 ·
When should i apply energy conservation?
- Aditya Tarey
- · Replies 5 ·
How Do You Calculate Stress and Diameter Change in a Spherical Pressure Vessel?
- a_hargy
- · Replies 5 ·
Potential Energy of a bottle w/ pressure
- fattydq
- · Replies 3 ·
Solve for Frequency and Velocity in a Uniform Tube with Open Ends
- gaobo9109
- · Replies 4 ·
How does inertia affect the behavior of a motor?
- Terocamo
- · Replies 3 ·
How to Express the Electric Field of a Dipole Along the Perpendicular Axis?
- pleasehelpme6
- · Replies 6 ·
Radial and Tangential Acceleration Question
- physicsguy98
- · Replies 1 ·
Finding Distance and Velocity of a Loose Bolt from Moving Elevator
- xr250h
- · Replies 1 ·
How Do You Convert Centimeters to Kilometers?
- Chelssss
- · Replies 1 ·
Magnitude and Direction of a charge interaction
- themonk
- · Replies 3 ·
Calculate pressure of Atmosphere
- tracyfan_1
- · Replies 1 ·
Finding average power when only time and final velocity are given
- fattydq
- · Replies 6 ·
Deriving v and a from a x(t)-function
- astenroo
- · Replies 2 ·
How Much Ice is Required to Cool a Whale's Tank from 20°C to 10°C?
- mizzy
- · Replies 3 ·
Ball thrown upward from 25m building: find max height, impact velocity and time
- bambino321
- · Replies 10 ·
Why use sin ≈ tan in the linear wave equation derivation
- jwxie
- · Replies 4 ·
What is the power output of a car engine?
- hasan_researc
- · Replies 2 ·
Polar moment of inertia for a shaft with slot
- chaitac
- · Replies 7 ·
Solve Crane Tension: 2 Cable Equations & Triangle Angles
- juggalomike
- · Replies 1 ·
Change of vector in different frames
- aim1732
- · Replies 6 ·
Harmonic Oscillator: When Will Body Return to Initial Place?
- PhMichael
- · Replies 15 ·
Maximum altitude of a rocket engine
- imatreyu
- · Replies 2 ·
What is the Average Velocity of a Motorist with Multiple Legs of Travel?
- rdmfresno
- · Replies 1 ·
Focal Length Calculation for Concave Mirror with Multiple Image Distances
- Sarial
- · Replies 2 ·
Maximum altitude of a rocket launch
- imatreyu
- · Replies 10 ·
Intensive Variables: Equal Value for Equilibrium?
- Gear300
- · Replies 2 ·
Why does a sliding object have constant acceleration on an inclined pipe?
- FahimP
- · Replies 1 ·
How High Does a Rocket Rise After Fuel Depletion?
- maaz224
- · Replies 13 ·
Calculating Effective Spring Constant for CO Molecule
- mathfilip
- · Replies 1 ·
What are these velocity formulas used for?
- mogibb1
- · Replies 1 ·
Vector Question of two workers
- robbondo
- · Replies 6 ·
The wave form of a sinusoidal current passing through a circuit?
- dazza555
- · Replies 1 ·
Deriving acceleration from a position function
- uchicago2012
- · Replies 1 ·
Force P to cause impending motion of block A with friction
- weihong892
- · Replies 6 ·
Adding Vectors with parallelogram/triangular rule.
- btbam91
- · Replies 4 ·
How Do You Calculate the Length of Vector C Using Components and Trigonometry?
- sami23
- · Replies 3 ·
Air resistance on a table tennis ball experiment design
- Synxervious
- · Replies 1 ·
Calculating Talk Time for a 1050mAh Mobile Phone Battery Pack
- Travian
- · Replies 9 ·
Velocity of a ball thrown straight up at its highest point
- mogibb1
- · Replies 4 ·
Charge Sharing between two metal spheres
- diesel55
- · Replies 2 ·
Relative velocity and distance between particles
- vickyiit
- · Replies 1 ·
Angular velocity of one particle relative to another in concentric circles
- vickyiit
- · Replies 2 ·
Momentum and Angular Velocity Question
- zorro
- · Replies 8 ·
Which Reactions Violate Conservation of Charge?
- SarahJ3
- · Replies 1 ·
Simple Harmonic Oscillator: Calculating Particle Position as a Function of Time
- Je m'appelle
- · Replies 4 ·
Transformer concepts (magnetic induction)
- Terocamo
- · Replies 6 ·
Speed of falling object via derivation/integration
- warfreak131
- · Replies 2 ·
Distance Needed for Electrostatic Force Between 2 Protons
- Roxiney
- · Replies 1 ·
Finding the Net Force on q0 from +5q and –3q Charges
- Roxiney
- · Replies 1 ·
Why Is the Relative Velocity Between Two Opposing Balls Added?
- mohabitar
- · Replies 3 ·
Building a Stair Climbing Robot on a Budget
- LT72884
- · Replies 4 ·
Dimensional analysis of this equation
- uchicago2012
- · Replies 6 ·
Baseball Acceleration: 0-46 m/s in 0.143 s
- Thousands
- · Replies 3 ·
Calculate Acceleration for Race Car Driving
- Thousands
- · Replies 3 ·
Solving {|g-g^exp|}/g*100 with g=980
- swatmedic05
- · Replies 1 ·
Calculating Electron Velocity with 3eV Energy
- brad sue
- · Replies 2 ·
Surface area to volume ratio problem
- uchicago2012
- · Replies 2 ·
Relativity and Simultaneity in Laser Beam Strikes
- ProPatto16
- · Replies 2 ·
Percent change in mass when gaining charge.
- Cllzzrd
- · Replies 7 ·
A simple electric field question
- arkofnoah
- · Replies 5 ·
Embarrassing Significant Figures question
- DrummingAtom
- · Replies 1 ·
What are the forces acting on a jet engine when encountering turbulence?
- josh28
- · Replies 1 ·
Vector sum of forces A + B + C from a grid diagram
- aheimer89
- · Replies 12 ·
Is a Node Where There is Little Displacement in a Vibrating Wave?
- noname1
- · Replies 1 ·
What is the voltage across vc(0)?
- jofree87
- · Replies 1 ·
Where is the Center of Mass of Stacked Pizza Boxes?
- Mechdude
- · Replies 6 ·
How much force does the water exert on a boat docked on a pier?
- dyenz
- · Replies 3 ·
Mechanics Vibrations Homework: Piston Displacement & Time Calculation
- tom l
- · Replies 1 ·
Finding Launch Speed and Maximum Height of a Toy Rocket
- zcd
- · Replies 4 ·
Free Body Diagrams on friction less surface
- dch1runs
- · Replies 11 ·