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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Calculate Centripetal Force for Object on Turntable
- Flinthill84
- · Replies 2 ·
Rocket Q: Solving 2-Part Launch Problem w/ 900kg Rocket
- Naeem
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Why empty aluminum cans don't have the mass pV predicts
- Bcisewski
- · Replies 2 ·
Minimizing Area: Proof that k is Independent of f(x) in a Tangent Problem
- elsen_678
- · Replies 2 ·
Solve Work Energy Problem: Find Theta for Skier on Slope
- Nothing
- · Replies 2 ·
Horizontal force on door hinges supporting 28 kg door
- vtech
- · Replies 4 ·
Estimate Sun's Rotation Period as a Neutron Star
- wildrjetta
- · Replies 5 ·
Why must a closed pipe end have a node rather than an antinode?
- Winner
- · Replies 7 ·
Convenient Coordinate System for Dog, Acrobat, and Submarine Analysis
- BronBurs
- · Replies 2 ·
Derivative of y = x(1 - x²)^(1/2)
- Leonidas
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How Far Does the Block Travel After Being Struck by the Bullet?
- pkhor
- · Replies 2 ·
Nonuniform bar suspended by two cords at angles 36.9° and 53.1°
- Cyrad2
- · Replies 2 ·
Solving Collision Problem: Find Angle Between Initial Velocities
- jenavira
- · Replies 2 ·
How Does Bernoulli's Equation Apply in a Bourbon Distillery's Plumbing System?
- Tycho
- · Replies 2 ·
Electric potential in a uniform electric field
- agirlsrepublic
- · Replies 2 ·
Calculating the Sum of a Series with Sigma Notation
- xLaser
- · Replies 8 ·
Question on Gravity Keplers Laws?
- ++A++
- · Replies 4 ·
Bullet lodges in rod: conservation of momentum or angular momentum?
- Cyrad2
- · Replies 3 ·
High Jump on Mars: Calculating the Athlete's Height
- Dragoon
- · Replies 3 ·
What is the speed of a bullet fired into a stationary wooden block?
- hulk
- · Replies 2 ·
When Do Lines in Space Not Intersect?
- Windwaker2004
- · Replies 2 ·
What is the Escape Speed Formula and How Do I Use It to Solve Problems?
- envscigrl
- · Replies 2 ·
Proving a force is conservative (via path integrals)
- cyberdeathreaper
- · Replies 2 ·
Calculating Upward Support Force on a Rigid Beam
- guru
- · Replies 2 ·
Calculating Speed and Time on a Frictionless Roller Coaster
- Clari
- · Replies 3 ·
What are the solutions to ln(z) = 1 and ln(-e^2)?
- Claire84
- · Replies 5 ·
Valence Bond question (Chemistry)
- el_hijoeputa
- · Replies 4 ·
Force needed to launch a ball through a curved tube
- mocfive
- · Replies 4 ·
Periodic Table Game Project: Find the Mystery Element!
- actingbiz1
- · Replies 4 ·
Trolley-trolley system force problem
- primarygun
- · Replies 2 ·
Elastic string conical pendulum at angular speed 2w
- KnowledgeIsPower
- · Replies 1 ·
What is the magnitude of angular acceleration upon release?
- justagirl
- · Replies 3 ·
How Is Average EMF Calculated in a Rotating Coil?
- Romperstomper
- · Replies 3 ·
How far can the rocket go trough space?
- sony
- · Replies 18 ·
Integral problem: landing this
- redshift
- · Replies 2 ·
Can't Solve This Rigid Solid Problem? Let's Figure It Out!
- Feynmanfan
- · Replies 3 ·
Calculating Work for Compressing Helium Gas at Constant Pressure and Temperature
- Spectre5
- · Replies 2 ·
Proof of limit involving square root
- courtrigrad
- · Replies 6 ·
How to calculate a cross product
- Rocko
- · Replies 2 ·
Infinite-Finite Potential Well
- AKG
- · Replies 2 ·
Impulse and Momentum of a falling student
- Bcisewski
- · Replies 3 ·
Tension in a hanging massive rope
- Heart
- · Replies 3 ·
Solving Friction Force and Coefficient on a 17 kg Box on a 35 Degree Incline
- shrtweez13
- · Replies 4 ·
Finding Planet X's rotation period from weight at pole and equator
- dudgey
- · Replies 3 ·
Solving Rotational Dynamics Problems with Torques & Acceleration
- Electro
- · Replies 2 ·
Tension in a chain dragging a 675kg tree at constant speed
- noste275
- · Replies 2 ·
How Can You Calculate Acceleration in a Two-Weight Pulley System?
- MattF
- · Replies 2 ·
Induced EMF and a square copper loop
- Physics_wiz
- · Replies 10 ·
Moment of inertia of a wagon wheel
- boedi_hehe
- · Replies 2 ·
Finding final temperature when 0.50 kg of 80°C water mixes with 0.050 kg of -5°C ice
- Corneo
- · Replies 4 ·
Calculating Minimum Ball Speed for Safe Passage through Rotating Windmill Blades
- mini_mia
- · Replies 3 ·
Finding ounces of substances A and B for complete nutrition with a 3:5 ratio
- demongrl2204
- · Replies 3 ·
How Do You Calculate the Radial Force on a Hinged Stick?
- justagirl
- · Replies 4 ·
How does the rocket equation M×ΔV=Δm×Ve work?
- the4thcafeavenue
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Calculating Forces on Sliding Box
- Tanya Back
- · Replies 6 ·
Explain why the electric field strength is zero
- MightyMeanie
- · Replies 3 ·
Inertia and friction: The tablecloth trick
- no_brainer
- · Replies 2 ·
How do I prove this? [Linear Algebra]
- AKG
- · Replies 3 ·
Solving Coefficient of Friction Error on Webassign
- polarized
- · Replies 3 ·
Kinematics with electric forces
- nemzy
- · Replies 2 ·
Frictionless cylinder yet chain wraps around it
- pitchharmonics
- · Replies 6 ·
Are my answers right? (Calculus YAY )
- FancyNut
- · Replies 6 ·
All-Easy production LP with labor and machine hour goals
- franz32
- · Replies 7 ·
How to Calculate Muzzle Speed in an Inelastic Collision?
- AeroFunk
- · Replies 3 ·
Centripetal force yo-yo problem
- gilboy64
- · Replies 6 ·
Steel bridge - increase dimensions by 5
- yxgao
- · Replies 2 ·
A bubble question - thermal physics
- gorge
- · Replies 2 ·
Drop in Pressure Over A Given Distance
- koomba
- · Replies 4 ·
Chemistry - Quantities in Chemical Reations
- Ruth
- · Replies 2 ·
How Do You Solve Interacting Systems Physics Problems?
- quick
- · Replies 4 ·
Finding the mass of a pulley from block accelerations and tension
- NotaPhysicsMan
- · Replies 13 ·
Person walking on overhanging plank: when does it tip?
- nix
- · Replies 6 ·
What Distance is Required to Stop a Car Moving at 50 m/s?
- Soaring Crane
- · Replies 3 ·
Does rope tension depend on whether the wheel moves?
- jjiimmyy101
- · Replies 6 ·
Compton scattering with photon losing half its energy
- stunner5000pt
- · Replies 2 ·
Earth's Orbital Speed Around the Sun
- Dragoon
- · Replies 4 ·
Strain in elevator cable during constant descent and braking
- Tycho
- · Replies 2 ·
Why does the liquid can beat the frozen can down the ramp?
- puravida
- · Replies 2 ·
Light reflecting and refracting at glass/air boundary with θ₁ = 30°
- HashBrown
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Finding center of mass of rod in bowl with radius 1
- graphic7
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What is the force constant of the web?
- Faiza
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What is the impact of a cylinder on the force needed to tow a car up an incline?
- Tycho
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Are perfect crystals actually brittle?
- bchl85
- · Replies 15 ·
Simple harmonic motion (4 questions)
- jin
- · Replies 2 ·
Roller coaster drop physics problem
- Dragoon
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Calculate this height for aluminum column
- lmf22
- · Replies 5 ·
Why is My Concept Wrong for A Uniform Solid Disk Rotating?
- CartoonKid
- · Replies 6 ·
Find area between y=Sin x and y=Cos x
- chjopl
- · Replies 8 ·
Centripetal acceleration of boat in circular turn after 2 seconds
- pinky2468
- · Replies 2 ·
Show whether S-omega is SC, CC, LPC, or compact
- synergy
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Is the Reaction Between Na and H2O Correctly Balanced?
- dg_5021
- · Replies 3 ·
How do I simplify factorial expressions like (n-1)! and (2n-1)!?
- FancyNut
- · Replies 3 ·
Force on wedge supporting plank and Earth's angular momentum
- buffgilville
- · Replies 4 ·
Brain Buster: Solving the Minimum Angular Velocity for a Thrilling Carnival Ride
- Dragoon
- · Replies 3 ·
Velocity/acceleratio in one dimension question
- FancyNut
- · Replies 14 ·
Average velocity from San Antonio to Houston and back at different speeds
- pseudonewtonian
- · Replies 11 ·
Projectile motion homerun question
- IGeekbot
- · Replies 2 ·
Kinetic friction on an incline problem
- -Justin-
- · Replies 3 ·
Angular momentum of rolling solid ball with given radius and density
- buffgilville
- · Replies 2 ·
Finding K Value for One-to-One Functions
- matrix_204
- · Replies 2 ·