Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
How can I use physics to explain the jump on my marble roller coaster?
- ameriland_06
- · Replies 6 ·
Terminal velocity of a ping pong ball
- disruptors
- · Replies 2 ·
Calculating Organ Pipe Length: Open vs. One End & Beat Frequency Comparison
- dphoos
- · Replies 2 ·
Calculating Distance in Circular Motion: Earth to Moon Spacecraft Force Analysis
- futb0l
- · Replies 2 ·
Woman walking toward center of rotating platform
- americanangel
- · Replies 4 ·
How to find the 10th derivative of f(x)=\sqrt{1+x^2} using binomial series?
- DivGradCurl
- · Replies 4 ·
Finding energy eigenvalues and expectation values in a 3D quantum system
- AKG
- · Replies 16 ·
Force of weight of the suspended ball
- Biya
- · Replies 4 ·
A few questions on pH < before a test
- peter444
- · Replies 2 ·
Find the final temperature of the ball
- dphoos
- · Replies 4 ·
Calculating Friction Force for Car in Circular Motion
- gillgill
- · Replies 3 ·
Maximum Projectile Speed for Safe Hanging: 20kg Wood Ball and 2m Long Wire
- darkdryad
- · Replies 3 ·
What is the 40th term of this arithmetic sequence?
- Poweranimals
- · Replies 19 ·
Equilibrium of a Suspended Mass on a Spring: Understanding Potential Energy
- Skomatth
- · Replies 3 ·
How far does a sled with rider travel on flat snow before stopping?
- iamgod21
- · Replies 5 ·
Waves & Sound: How deep is your well?
- internetimothy
- · Replies 6 ·
Momentum of child throwing snowball and clay ball compression spring
- lucifer
- · Replies 3 ·
Does sodium bicarbonate function as an acid or a base?
- xLaser
- · Replies 10 ·
Work done by car engine accelerating up a hill
- Lorax
- · Replies 6 ·
How Does a Flywheel Power a 40 T Magnetic Field?
- Nylex
- · Replies 2 ·
Why Does an Object Fall 490 Meters in 10 Seconds?
- tman
- · Replies 5 ·
I'm so lost Volume and tension?
- shadow2006
- · Replies 9 ·
How to Calculate Phase Difference Between Two Sinusoidal Waves?
- SpeedBird
- · Replies 4 ·
Number Theory Question - Discrete Log mod (pq)^2.
- Chu
- · Replies 2 ·
De Broglie wavelength diffraction and microscope resolution problems
- Yuelao
- · Replies 2 ·
Finding tension and hinge forces for a hanging sign on a beam
- strugglin-physics
- · Replies 3 ·
Calculating Volume Using Archimedes' Principle
- nix
- · Replies 2 ·
Speed of unrolling tissue paper roll from R to r
- gaborfk
- · Replies 2 ·
What is the derivative of x^x and how to sketch sin(x)/x by hand?
- ponjavic
- · Replies 18 ·
Solve Astronaut Wrench Problem: Find x_2 from x_1, v
- tigerseye
- · Replies 4 ·
How to Solve Basic Physics Problems: Tension, Force, and Acceleration
- Raza
- · Replies 2 ·
Calculating Angle of Globe on Accelerating Train - Forces in Motion
- futb0l
- · Replies 4 ·
Volume of a object by being submerged
- mikezietz
- · Replies 3 ·
Floor function equation and proving a polynomial root exist
- matrix_204
- · Replies 4 ·
How Does Newton's Third Law Explain Our Forward Movement?
- UrbanXrisis
- · Replies 3 ·
What is the required force to accelerate a child on a sled at 1.12 m/s2?
- Rapta3
- · Replies 20 ·
Two Brainmelting Problems Save Me
- fizziksplaya
- · Replies 3 ·
Homework help: discrete schodinger eq. Energy Eigenstates?
- tiger_striped_cat
- · Replies 2 ·
Coefficient of kinetic friction for a hockey puck on ice
- WCU
- · Replies 8 ·
Radial and circumferential strain in an incompressible blood vessel wall
- chusifer
- · Replies 1 ·
Help with Fundamental Frequency problem
- Purduenub03
- · Replies 12 ·
Finding current and voltage across resistors in parallel circuits
- BigDanT
- · Replies 6 ·
Rolling without slipping and frictional force
- gcolombo
- · Replies 2 ·
What Is the Required Power for a Cable Car on a Slope?
- scan
- · Replies 2 ·
Work done by forces on a block pulled up a 35° incline at constant speed
- scan
- · Replies 6 ·
How to Prove the Moment of Inertia for a Spinning Cone?
- Warmoth
- · Replies 3 ·
What is the Kinetic Energy and Work Done for Separated Space Vehicle
- pinky2468
- · Replies 2 ·
Find Equation for Ideal Gas in Cube Container
- jamie_o
- · Replies 2 ·
What Went Wrong in Calculating Tensions in These Statics Problems?
- Shay10825
- · Replies 2 ·
What Are the Characteristics of Protonium?
- stunner5000pt
- · Replies 1 ·
Coal delivery rate on a conveyor belt with 60kW motor
- steelcap
- · Replies 2 ·
Tension at height y in a hanging rope of linear mass density λ
- disruptors
- · Replies 2 ·
Showing group velocity is half phase velocity with n inversely proportional to wavelength
- nuttyquark
- · Replies 2 ·
Conservation of Momentum of a uniform thin rod
- 7C0A0A5
- · Replies 4 ·
Two masses and a Gravitational field
- ++A++
- · Replies 2 ·
Finding Acceleration for Object on Equator
- GingerBread27
- · Replies 3 ·
Potential Energy of a Three-Particle System
- sizzler
- · Replies 2 ·
Calculating Revolutions for Weightlessness on a 15m Ferris Wheel
- DLxX
- · Replies 3 ·
Power series for (x+x²)/(1-x)³ and sum of n²/2ⁿ
- DivGradCurl
- · Replies 9 ·
Is g Positive or Negative in Bernoulli's Equation?
- Skomatth
- · Replies 2 ·
Solving Calorimetry Ques: Molybdenum Specific Heat
- vg19
- · Replies 2 ·
Calculating Mass of Asteroid Given Moon's Size, Distance, and Orbit
- GingerBread27
- · Replies 2 ·
How Do You Calculate the Density Ratio of the Moon to the Earth?
- envscigrl
- · Replies 2 ·
Calculating Acceleration in a Pulley System
- eno
- · Replies 5 ·
Optics problem: electromagnetic theory
- cuti_pie75
- · Replies 3 ·
Nonuniform bar suspended by two cords at angles 36.9° and 53.1°
- Cyrad2
- · Replies 2 ·
How Does a Decreasing Radius Affect the Speed of a Rotating Cylinder?
- gaborfk
- · Replies 1 ·
Constructing vector diagrams for coplanar forces
- ravadongon
- · Replies 6 ·
How Do You Solve for a, b, and c in Polynomial Equations?
- aisha
- · Replies 8 ·
Thermodynamics - heating spoon and coffee
- mikep
- · Replies 14 ·
Calculate the distance from the center of the Earth
- envscigrl
- · Replies 2 ·
Solving 3 Simple Physics Problems
- mikezietz
- · Replies 9 ·
How Does Acceleration Affect the Period of a Simple Pendulum?
- cissablecat23
- · Replies 8 ·
Need 12 more questions for periodic table game project
- actingbiz1
- · Replies 1 ·
How Do You Calculate Microstates for a Constrained Spin System?
- Nylex
- · Replies 1 ·
Air volume increase from -3.5°C to 37°C in lungs
- mikep
- · Replies 9 ·
Fluids (Find the Force Exerted)
- Bcisewski
- · Replies 2 ·
How Do You Identify Resonance Structures for SO4^2- and H3PO4?
- nobb
- · Replies 3 ·
Projectile Motion Analysis: Calculating Safe Distance for a Swimmer in Training
- synchronicity
- · Replies 1 ·
Formula for mass up an inclined plane
- simmer_27
- · Replies 6 ·
Which Newton's law describes inertia is proportional to mass?
- no idea
- · Replies 2 ·
Area between x-axis and y=7-8x+x² using fundamental theorem
- mugzieee
- · Replies 8 ·
Prove this is a right triangle?
- aisha
- · Replies 7 ·
Solving Rotational Motion: Coin Rolling Up Inclined Plane
- PinkDaisy
- · Replies 2 ·
Bouncing mass with air resistance: total distance traveled
- mattysimins
- · Replies 5 ·
Complex Variables and Integration
- Ed Quanta
- · Replies 5 ·
Banking angle for a car to round a curve without friction
- ballahboy
- · Replies 2 ·
Does a net torque imply the presence of net force in a system?
- justagirl
- · Replies 2 ·
How Do You Calculate Tension in a Pulley System?
- Godad
- · Replies 2 ·
Finding angular acceleration for this prob
- ballahboy
- · Replies 4 ·
Solving the Wave Problem: Transmitted Wave Amplitude
- mlee
- · Replies 1 ·
What Is the Maximum Amplitude of a Wave Pulse?
- mlee
- · Replies 2 ·
Help with Periodic Table Game Project
- actingbiz1
- · Replies 2 ·
Solve a Simple Power Problem: Escalator Work Rate
- pinky2468
- · Replies 3 ·
Finding where my Kirchhoff's law circuit calculation went wrong
- needhelpperson
- · Replies 2 ·
Calculating F(3) and F(-4) for F(x)= -x^2+2
- Chikawakajones
- · Replies 10 ·
Calculating Coefficent of Kinetic Friction: Box on Floor
- (* ^_^ *)
- · Replies 3 ·
Time difference between two sine waves
- redshift
- · Replies 2 ·
General solution of x²dx + y(x-1)dy = 0
- relinquished™
- · Replies 2 ·