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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What Happens When a Person Touches a Live Wire?
- Tcat
- · Replies 1 ·
How Do You Calculate Work and Force for a Displaced Mail Bag?
- melodrameric
- · Replies 1 ·
Find the x component for the force parallel using xcos
- lilkrazyrae
- · Replies 5 ·
Asteroid collides with Earth, new accel. of gravity?
- confusedbyphysics
- · Replies 4 ·
How Much Energy Is Lost Due to Air Drag in Ski Jumping?
- ViewtifulBeau
- · Replies 2 ·
How Does a Cookie Jar's Motion on an Incline Relate to Physics Principles?
- lethalblade
- · Replies 1 ·
Help - finding what slope means
- an_mui
- · Replies 2 ·
How High Can a Roller Coaster Start Without Flying Off the Track?
- dekoi
- · Replies 6 ·
What is the angle needed to solve for the shopping cart problem?
- ultimate70192
- · Replies 2 ·
What is the acceleration of the masses in this physics homework problem?
- jbgibson
- · Replies 13 ·
How Does Inclination Angle Affect Tension and Acceleration in a Pulley System?
- physixnot4me
- · Replies 1 ·
How Do Vector Magnitudes Relate in Simple Equations?
- antiflag403
- · Replies 2 ·
How Do You Calculate Forces on an Inclined Plane with a Frictionless Pulley?
- physixnot4me
- · Replies 1 ·
Calculate Distance of Sound Impact: Concrete vs. Air Speeds
- Ryan231
- · Replies 6 ·
What is the total kinetic energy of the globe, professor, and platform?"
- nemesys
- · Replies 1 ·
Checking Basic Physics Problem for Friend
- Cyrus
- · Replies 6 ·
Calculating Thrust and Lift Forces for a Jet Fighter Taking Off at 27 Degrees
- Anisotropic Galaxy
- · Replies 5 ·
Solving Physics Work Problems - Confirm Results
- Apple123
- · Replies 1 ·
How Is Centripetal Acceleration Related to the Period of Clock Hands?
- rockmorg
- · Replies 2 ·
Calculating Kinetic Friction for 300N Penguin on Icy Floor
- amcavoy
- · Replies 6 ·
Calculating Change in Velocity of 600kg Sports Car
- NMW
- · Replies 3 ·
Siimple kinematics Homework help
- heytke
- · Replies 2 ·
Calculating the Speed and Acceleration of Jillian's Engagement Ring
- aznriceboiz5
- · Replies 2 ·
Find Initial Separation d for Mass-Spring System: Energy & Force | 4245 N/m
- ViewtifulBeau
- · Replies 2 ·
Solve Electrical Problems: Airplane in Thundercloud, Point Charges & More!
- thspoq2
- · Replies 1 ·
Solving Car Banked Problem: Friction Force at 88 km/h
- confusedaboutphysics
- · Replies 3 ·
What Angle Causes Particles A and B to Collide?
- shawpeez
- · Replies 6 ·
Load on ladder leaning against a wall
- engcon
- · Replies 4 ·
Juggling Concept: Equal Accelerations, Opposite Velocities | Quick Question"
- je55ica7
- · Replies 3 ·
Solving the Weight of a Meterstaff with a Dynamometer
- Izekid
- · Replies 5 ·
Supermarket Ramp Design: Finding the Optimal Slope
- tman1
- · Replies 8 ·
Newtons second law and stopping on a dime
- ledhead86
- · Replies 5 ·
Torque and Force Equilibrium in a Rotating Plank
- Izekid
- · Replies 5 ·
Velocity of 2.0kg Object at 4s: Solving Force vs Time Graph
- godplayer
- · Replies 3 ·
Quick question 1st law thermodynamics
- ice87
- · Replies 1 ·
Calculating Forces with Friction and Newton's Laws
- aceXstudent
- · Replies 7 ·
Conceptual Newtons laws of motion question- mass and weight
- ledhead86
- · Replies 5 ·
Calculating Force in Lifting a 2.0kg Object
- je55ica7
- · Replies 3 ·
Solving Particle Physics Relativity Problem: hbar*omega = DE (1 - DE/2Ea)
- Somethingsin
- · Replies 1 ·
Understanding the Physics of Thrown Balls: Speed, Velocity, and Acceleration
- je55ica7
- · Replies 2 ·
Is the Compton Wavelength of a Sodium Atom Comparable to X-ray Wavelengths?
- asdf1
- · Replies 4 ·
Shortest mirror that will work
- parya23
- · Replies 8 ·
Explaining Newton's Laws: Car, Balloons, Weights & Roller Coasters
- smartboy
- · Replies 4 ·
How Does S-Polarized Light Transmit Through Different Refractive Indices?
- TimNguyen
- · Replies 1 ·
Finding Friction Coefficient on Ice | Puck Velocity and Forces Question
- dnt
- · Replies 3 ·
How do i sketch the equipotential lines ?
- mich_v87
- · Replies 4 ·
Proton passes the Milky Way galaxy, find its energy?
- asdf1
- · Replies 1 ·
Explaining these concepts (circular motion)
- jrd007
- · Replies 20 ·
Solving a Parallel-Plate Air-Filled Capacitor Problem
- mr_coffee
- · Replies 2 ·
Comparing Vibrating and Oscillating Energy of Tuning Forks
- asdf1
- · Replies 3 ·
Tension acceleration train problem
- cheez
- · Replies 2 ·
Physics Lab Report Strategy | Help!
- mich_v87
- · Replies 2 ·
Equipotential Lines: Can They Cross?
- mich_v87
- · Replies 1 ·
PASCO lab on the interferometer
- big man
- · Replies 2 ·
Calculate Maximum Momentum of Pelle Cycling up a Hill
- Izekid
- · Replies 1 ·
Energy Transformations: Understanding the Arrow's Flight and Landing
- jakeowens
- · Replies 3 ·
How many g-forces are experienced by this object
- markmac
- · Replies 10 ·
Calculating Degree of Polarization at Air-Glass Interface
- TimNguyen
- · Replies 3 ·
Capacitance equired to store an energy of
- mr_coffee
- · Replies 3 ·
How Can You Calculate the Depth of the Spelunker's Hole?
- picc84
- · Replies 9 ·
Calculating Momentum of an Electron with 511 keV Kinetic Energy
- asdf1
- · Replies 8 ·
Projectile motion theta question
- Ara macao
- · Replies 1 ·
What Resources Can Help Understand Newton's Laws for Solving Physics Problems?
- coalonso
- · Replies 1 ·
Numerical problem about circuits
- Salman
- · Replies 2 ·
Ground State Symmetry of Single Electron w/ Non-Interacting 2nd Electron
- positron
- · Replies 3 ·
Please I need some help in Newtons Laws
- ISU20CpreE
- · Replies 8 ·
Overtaking Truck: How Far & How Fast for Car?
- aznriceboiz5
- · Replies 1 ·
Proving centripetal acceleration formula
- dragon513
- · Replies 2 ·
Sig Fig Problem: Calculating t with I=3.20A, L=4.2m, etc
- Tcat
- · Replies 1 ·
Calculating Speed at Equator: 91.3kg Person
- AdnamaLeigh
- · Replies 2 ·
Graphing Question (Software Related)
- SRForum
- · Replies 5 ·
Calculating Time for Object B to Catch Object A in Constant Velocity Motion
- Kandy
- · Replies 2 ·
Perfectly inelastic collision in a spring situation?
- erik-the-red
- · Replies 1 ·
Calculating Acceleration of a Car using Power and Time
- Punchlinegirl
- · Replies 2 ·
Need basic understanding of force and friction
- Balthamos
- · Replies 9 ·
Change in total kinetic energy in a conservation of momentum problem?
- erik-the-red
- · Replies 9 ·
Max Tension Force on Horizontal Rope Pulling 10kg Wood Sled
- Comtrend
- · Replies 5 ·
How to Calculate Tension in a Two-Block System with Upward Acceleration?
- babbagee
- · Replies 5 ·
Some questions on a take home quiz dont makes sense
- kevinlikesphysics
- · Replies 5 ·
A project about Basketball Player
- eddie_Li
- · Replies 3 ·
Is it correct to say that a toaster "consumes" current ?
- mich_v87
- · Replies 1 ·
Momentum Questions: Solve w/ Formulas
- shannons
- · Replies 13 ·
Thermodynamic Cycle: Calculating Heat Transfer and Work
- kdinser
- · Replies 1 ·
Determine acceleration and tensions in this diagram
- physixnot4me
- · Replies 4 ·
Sound moving through different mediums
- squib
- · Replies 3 ·
Fetal Heart Wall Velocity from Ultrasound Reflection
- squib
- · Replies 4 ·
Questioning My Teacher's Physics Find Coefficient of Friction?
- xidis
- · Replies 7 ·
Calculating Arrow Speed with Doubled Force: Newton's Second Law
- Washable_Marker
- · Replies 9 ·
Gravitation: Find Masses for 2 Objects, 4 kg Total
- jrd007
- · Replies 10 ·
Calculating Attraction Between Cokes: Solve the Puzzle
- Izekid
- · Replies 4 ·
How does the distance of a planet from the sun affect the temperature?
- ohxhowtragic
- · Replies 2 ·
Centripetal Force Lab: Calculate Proportionality & Plot Data
- F.B
- · Replies 3 ·
How Do You Calculate Backward Power and Forces in Physics Problems?
- Izekid
- · Replies 6 ·
Question about conservation of angular momentum
- eosphorus
- · Replies 1 ·
Miscalculation with speeds of electrons?
- asdf1
- · Replies 7 ·
What is the wavelength of the x-rays in the direct beam?
- asdf1
- · Replies 8 ·
Can Photons Completely Transfer Energy and Momentum to Free Electrons?
- asdf1
- · Replies 2 ·
AZING!Calculating Vacuum Buoyancy: Maximum Weight a Vacuum Cleaner Can Lift
- je55ica7
- · Replies 4 ·