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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Static equilibrium boy walking on beam
- trajan22
- · Replies 3 ·
EMF, Voltage, Current, Potential Difference etc.
- danago
- · Replies 6 ·
Find the refractive index of different objects using Snell’s law
- australianschoolkid
- · Replies 8 ·
Viscosity Troubles: Solving a Physics Dilemma
- Mystery_Man
- · Replies 2 ·
Calculating Tension of Rope for Scaffold with 690N Worker
- esinn08
- · Replies 2 ·
Torque with Symbolic Notation Problem
- esinn08
- · Replies 1 ·
Relative velocities at high speed
- Coldie
- · Replies 2 ·
Magnetic fields around electric current
- chris_yau
- · Replies 4 ·
Understanding Electric Motor Theory for First Timers
- australianschoolkid
- · Replies 2 ·
Learn How to Draw Free Body Diagrams for Various Physics Problems"
- jenn3999
- · Replies 2 ·
Solving Ski Slope Friction: Find Speed & Distance
- Sportsman4920
- · Replies 3 ·
Pilot falling 360m into snow: work, force and air resistance
- Sportsman4920
- · Replies 3 ·
What physically changes in a tennis ball when you lift it?
- Delzac
- · Replies 16 ·
Finding spring constant and frequency for fly caught in spider web
- metalmagik
- · Replies 1 ·
Angular Momentum of Rod Question
- americanforest
- · Replies 4 ·
Force of 1.5kg Crate Falling onto Spring Scale
- blackout85
- · Replies 1 ·
Finding momentum from mass and height
- duke1
- · Replies 5 ·
Calculating Work Done by a Variable Force on a Particle-Like Object
- mbrmbrg
- · Replies 3 ·
A force problem that seems easy but hard
- cy19861126
- · Replies 4 ·
How Does Kinetic Energy Affect Spring Elongation?
- blackout85
- · Replies 1 ·
How Does a Crate's Impact Translate to Spring Compression?
- blackout85
- · Replies 1 ·
How Do Acceleration, Velocity, and Position Change When a Tow Truck Pulls a Car?
- courtney1121
- · Replies 8 ·
Simple Harmonic Motion and frequency of vibration
- metalmagik
- · Replies 1 ·
Mind boggled by a tension problem.
- bananan
- · Replies 5 ·
How Do You Calculate Tensions in a Suspended Mass System with Different Angles?
- Fusilli_Jerry89
- · Replies 1 ·
How Do Two Objects Attract Each Other Gravitationally?
- Angelofhappiness
- · Replies 1 ·
With static equillibrium TEE exam in a few days
- beefcake466
- · Replies 14 ·
Finding the Angle Between Vectors and Determining Their Plane
- jkh4
- · Replies 1 ·
Block pushed up a frictionless incline at constant velocity
- student85
- · Replies 4 ·
Distance of an object launched by a rubber band decreases as its mass increases
- Nastyusha
- · Replies 3 ·
Cart with propeller - Find force of friction
- jenn3999
- · Replies 2 ·
What is the density of a 7.85 kg moon rock submerged in water?
- needhelp83
- · Replies 8 ·
Force of friction of this cart on wheels with a motor driven propeller
- jenn3999
- · Replies 1 ·
Falling bucket of water physics
- rleung3
- · Replies 2 ·
Toy Cannon: Calculating the Projectile Speed
- Dorothy Weglend
- · Replies 2 ·
Finding oven temperature from copper bar thermal equilibrium with water and steam
- madbeemer
- · Replies 2 ·
Calculate: Block's Kinetic Energy, Work by Forces, & Gravity
- Sportsman4920
- · Replies 7 ·
Climbing a 10m Ladder: Calculating the Work for a 50kg Student
- almost__overnow
- · Replies 1 ·
Work done by friction on a spring-launched object
- rleung3
- · Replies 3 ·
How Can I Improve My A-Level Physics Experimental Investigation?
- THE 1
- · Replies 1 ·
Graphing Wave Function Phi(x): What Does It Look Like?
- alias25
- · Replies 1 ·
What happens when we close the switch?
- firefox444
- · Replies 12 ·
What is "photosensitive" property?
- lingling
- · Replies 1 ·
Finding the exit angle in a glass prism with refraction
- Couperin
- · Replies 2 ·
Toy Airplane Flying: Lift Force vs. Reaction Force
- beefcake466
- · Replies 1 ·
Acceleration and friction force
- moomoocow
- · Replies 1 ·
Calculating Hydrostatic and Gravitational Forces in Fluid Mechanics
- Forceflow
- · Replies 1 ·
Pt. Mass and Spring rotating on table
- d843
- · Replies 1 ·
Moment of inertia about an axis for object with masses L, M, m1, m2
- dtesselstrom
- · Replies 3 ·
Velocity v(t) = b(t-T)^2, find position function x(t)
- courtney1121
- · Replies 5 ·
Finding hinge force and wire tension for a beam with a person standing on it
- student331
- · Replies 2 ·
Static Equilibrium and downward force
- Meowzers
- · Replies 4 ·
A force question that I couldn't understand
- cy19861126
- · Replies 6 ·
How is Wave Propagation Time Calculated for a Rope in a Mine Shaft?
- sapiental
- · Replies 3 ·
Interference of rectangular pulse
- sapiental
- · Replies 1 ·
Torpedo boat recoil from horizontal torpedo launch
- plug2002
- · Replies 6 ·
How Do You Calculate the Energy of a Spring Using Physics Principles?
- muna580
- · Replies 16 ·
Calculating the Point of Gravitational Balance between Earth and the Moon
- quickslant
- · Replies 19 ·
Calculating Magnetic Field from Spin Alignment Energy Difference
- tigert2004
- · Replies 2 ·
Why is the Energy in Capacitance Formula (CV^2)/2 Instead of QV?
- semc
- · Replies 1 ·
Finding rotational inertia of a yo-yo
- chaose
- · Replies 1 ·
When to use sin vs cos for simple harmonic motion?
- smileandbehappy
- · Replies 3 ·
Calculating Skier's Height Over Ramp and Hedge Using Kinematics and Energy
- samdiah
- · Replies 6 ·
The Bohr Model of the Hydrogen Atom
- frankene
- · Replies 2 ·
Will a Projectile Hit a Falling Target If Fired Simultaneously?
- LastBloomingFlower
- · Replies 5 ·
Hydrogen balloon volume at sea level and 2000m using ideal gas law
- Benny
- · Replies 5 ·
What does molar concentration in parts per million mean?
- seang
- · Replies 1 ·
Homework Questions? Am I right or the Professor?
- lousymusicmaker
- · Replies 15 ·
Help with a work-energy problem
- muna580
- · Replies 3 ·
How Is the Shear Modulus of a Sponge Calculated?
- mikefitz
- · Replies 1 ·
Solving Strange Friction AP Problems with m, R, mu, v
- turdferguson
- · Replies 3 ·
How Are Sound Waves and Frequencies Affected in Musical Instruments and Rooms?
- physics_06er
- · Replies 5 ·
Diving into water / Nonconservative forces
- xrotaryguy
- · Replies 2 ·
Calculate the average net force acting on the bullet
- silje
- · Replies 3 ·
Check my answers for pendulum, pulley, banking, work, and friction problems
- :::JMANN:::
- · Replies 14 ·
Water Flow Speed: Diameter 0.2mm to 5mm
- mikefitz
- · Replies 1 ·
Undamped oscillator with driving force
- thenewbosco
- · Replies 1 ·
Pulley system with Moment of Inertia
- TrippingBilly
- · Replies 1 ·
Bullet velocity from ballistic pendulum with 5.50g bullet
- samdiah
- · Replies 2 ·
Angular Acceleration of a rotating wheel
- TrippingBilly
- · Replies 5 ·
How Do You Calculate Force and Acceleration in a Crash Test Scenario?
- JB83
- · Replies 6 ·
Distance in time at acceleration
- dirty_d
- · Replies 7 ·
Conceptual Momentum/Energy Problem
- JB83
- · Replies 2 ·
Moment of Inertia and Angular Speed
- TrippingBilly
- · Replies 2 ·
Crane lifting a 1000 kg beam: fuel energy, cost and height
- Alaa Wahbi
- · Replies 2 ·
Type 2 Projectiles TEST TOMMOROW
- 3dsmax
- · Replies 4 ·
Understanding Conventional Current vs Electron Flow
- physicsgal
- · Replies 7 ·
Calculate the orbital radius of a synchronous satellite
- james111
- · Replies 4 ·
How would creatures evolve and move on a frictionless planet?
- PacersRule07
- · Replies 12 ·
Simple problem using Work-Energy Theorem
- mbrmbrg
- · Replies 2 ·
What is the force on the ball's lowest point in a vertical revolving motion?
- fara0815
- · Replies 11 ·
Projectile Motion, missing variables.
- Visual1Up
- · Replies 10 ·
What is the angular velocity of the bar after being struck by the ball?
- trajan22
- · Replies 12 ·
Can You Calculate Wood Density Without Using Calculus?
- SoccaCrazy24
- · Replies 4 ·
Deriving the coefficient of restitution formula
- GreenSabbath
- · Replies 2 ·
Train A and B meeting with equal velocity
- Parallel
- · Replies 7 ·
How Do Kinetic Energies of Particles A and B Compare After Spring Release?
- cd80187
- · Replies 1 ·
Is work equal to potential and kinetic energy?
- moomoocow
- · Replies 5 ·
Projectile Motion of roller skates
- LastBloomingFlower
- · Replies 7 ·