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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Ballistic Pendulum displacement
- kevina
- · Replies 11 ·
Finding the Resultant Force of Three Vectors
- free2rhyme12345
- · Replies 2 ·
Calculating Height from Work and Rotational Motion of a Rigid Body
- GoldShadow
- · Replies 2 ·
Stupid Buoyancy, this is getting ridiculous.
- Saladsamurai
- · Replies 8 ·
How Are Standing Sound Waves Solved?
- Kites
- · Replies 1 ·
Analyzing Force and Mass Data: Finding the Force of a Fan
- Roze
- · Replies 5 ·
Photoelectric Effect and ozone layer
- fireandwater
- · Replies 2 ·
Gauss' Law With an Infinite Cylinder of Charge
- Poop-Loops
- · Replies 2 ·
How Do You Solve Vector Addition Problems?
- Bensky
- · Replies 3 ·
Rank Bulb Brightness A-F: Physics Solution
- skli
- · Replies 2 ·
Momentum question-just checking my method
- pinkyjoshi65
- · Replies 15 ·
What is the magnitude of the impulse in a ball-wall collision?
- chaotixmonjuish
- · Replies 8 ·
Work done on package by gravity: 784JNet work done on package: -37.7J
- bigtymer8700
- · Replies 5 ·
Nonuniform circular motion merry-go-round
- AvrGang
- · Replies 2 ·
How Do I Solve This Vector Displacement Problem?
- Bensky
- · Replies 5 ·
How Do You Calculate the Power Exerted by an Elevator Cable?
- KMjuniormint5
- · Replies 5 ·
What Length of Bungee Cord Should the Daredevil Use?
- twotaileddemon
- · Replies 8 ·
Thin Film Question: Finding Oil Slick Thickness
- bk999
- · Replies 2 ·
Why is y = (2m) cos (kx) dimensionally correct?
- mooneh
- · Replies 1 ·
Calculating Gas Temperature Change Using the Ideal Gas Law
- turnip
- · Replies 3 ·
How Do You Solve Rectilinear Motion Problems with Missing Data?
- Sebc
- · Replies 2 ·
How Is Work Calculated When Stretching a Spring?
- jumptheair
- · Replies 1 ·
Approximation to simple harmonic motion.
- Angelos
- · Replies 2 ·
How Do You Calculate Proton's Speed and Kinetic Energy in a Magnetic Field?
- t_n_p
- · Replies 2 ·
Rotational velocity of a system that has a mass launched at it stick to it
- ttk3
- · Replies 1 ·
Help with Kinetic and Potential Energy
- tibessiba
- · Replies 4 ·
Voltage Drop Across Transmission Lines
- jiten827
- · Replies 2 ·
How Does Cutting One String Affect the Acceleration of a Rod?
- delecticious
- · Replies 1 ·
Need help with physics questions with charges and velocity
- tripz1196
- · Replies 1 ·
Physics Boat Problem involving velocity
- sympathy2
- · Replies 1 ·
Air Resistance free fall problem
- conradmiguel
- · Replies 6 ·
How Do You Solve Physics Problems Involving a Pulley System with Two Students?
- driedupfish
- · Replies 4 ·
Static equilibrium with a suspended sphere on a wall
- gills
- · Replies 5 ·
Angular Frequency for Small Oscillations
- lgmavs41
- · Replies 2 ·
Sound waves move from air to water
- starking
- · Replies 1 ·
Vector Problem: Get Home from 15.0 km Away
- janhen200
- · Replies 6 ·
Weight of block and static friction
- rcmango
- · Replies 1 ·
Moment of Inertia Problem: cylinder pivoting ona bearing
- delecticious
- · Replies 2 ·
How much will he weigh on a different planet
- rcmango
- · Replies 1 ·
Skier velocity and friction problem
- rcmango
- · Replies 3 ·
How Does Magnetic Repulsion Affect Puck Velocities in Elastic Collisions?
- pinkyjoshi65
- · Replies 15 ·
How is the particle's speed at points B and C determined?
- pcandrepair
- · Replies 12 ·
How to Determine if a Collision is in 2 Dimensions?
- pinkyjoshi65
- · Replies 13 ·
Calculate Acceleration of 2.0kg Block w/ Pulleys & Blocks
- Grapz
- · Replies 2 ·
Calculating the Speed of a Cylinder on a Frictional Ramp
- delecticious
- · Replies 6 ·
What is the Apparent Weight of a Pilot at the Bottom of a Loop?
- physstudent1
- · Replies 4 ·
Elevator starts from rest with constant acceleration
- splac6996
- · Replies 5 ·
Work and Kinetic Energy of cord
- saber1357
- · Replies 3 ·
Help with springs and potential energy problem
- GeoMike
- · Replies 3 ·
Maximum Static Friction Force for Spinning Disk and Block System
- splac6996
- · Replies 4 ·
Force that the wall exerts on the wedge
- klm
- · Replies 14 ·
Solving Tension Force in Plank Supported by Cables
- eraemia
- · Replies 1 ·
Capacitance and Voltage Confusion
- jendead
- · Replies 11 ·
How Does Wavelength Affect Photoelectron Production and Stopping Potential?
- Reshma
- · Replies 2 ·
Flywheel Kinetic Energy in Delivery Trucks
- BuBbLeS01
- · Replies 1 ·
Electric fields in a plane, :smile:
- JFonseka
- · Replies 6 ·
Solve Centripetal Force for m_1 in Frictionless Table
- klm
- · Replies 41 ·
How to calculate distance object traveled in completely inelastic collision?
- pebbles
- · Replies 1 ·
How Do You Calculate Angular Acceleration of a Cylinder?
- sheri1987
- · Replies 1 ·
Final question of the day help finding impulse of two billiard balls
- pebbles
- · Replies 4 ·
Find the tension in each rope torque
- poloboy
- · Replies 4 ·
Maximum Deformation of Springs in a Collision: Deriving the Equations
- sumeer@dinsum.c
- · Replies 4 ·
Safer Collision: Front-end Damage vs. No Damage - Impulse-Momentum Theorem
- pebbles
- · Replies 5 ·
Calculating Average Force on a Vertical Wall from Ice Cube Collisions
- Pulk
- · Replies 5 ·
Solve for Velocity of Two Falling Balls | Challenging Physics Problem
- troy5538
- · Replies 23 ·
What is the internal resistance r of the battery?
- robbondo
- · Replies 5 ·
How to Calculate Work Done by Friction without Coefficient of Friction?
- baseballer10p
- · Replies 18 ·
Potential Energy of a Conservative Force
- Jacobpm64
- · Replies 5 ·
Elevator 2 part Question - Box Dragging
- Larrytsai
- · Replies 8 ·
Work done stopping a car that decelerates over 25.5 m
- teriblekelly
- · Replies 4 ·
What is the speed of m2 after the spring is released?
- bulldog23
- · Replies 1 ·
Kinetic Energy Vs. Potential Energy confusion.
- teriblekelly
- · Replies 3 ·
Horizontal Speed of bullet fragment
- bulldog23
- · Replies 15 ·
Ball of mass rolling down an incline
- delecticious
- · Replies 2 ·
Calc Angular Accel of Solid Cylinder - FxR Method
- sheri1987
- · Replies 5 ·
Solving Momentum Conservation: Finding Velocity & Direction
- scott.leever
- · Replies 3 ·
Solve Forces and Acceleration for Two Crates in Contact - Casey
- Saladsamurai
- · Replies 3 ·
How do I show that each mass endures an equal and opposite change in momentum
- pebbles
- · Replies 8 ·
Emergency HW Help: Algebra 2 Linear Programming - Maximize Profit
- ineedhwhelp
- · Replies 6 ·
Calculating energy lost in collisions?
- pebbles
- · Replies 5 ·
How Do You Calculate Net Force on an Inclined Plane?
- JohnJay
- · Replies 1 ·
Velocity Calculation: Boat Crossing a River at 1.50 m/s - Problem Solved
- Cowtipper
- · Replies 9 ·
Unit Conversion Help: A Simple Way to Make Sense of Confusing Conversions
- EvanVi
- · Replies 1 ·
Gravitational Potential Energy of an elevator
- BuBbLeS01
- · Replies 6 ·
Circular Motion: General Equations
- St@rbury
- · Replies 1 ·
A block on top of another on a horizontal surface.
- Ahwleung
- · Replies 3 ·
Radius of Orbits: GPS Satellite & Earth
- Ryo124
- · Replies 36 ·
Solve Rotation Questions: 2.53 Revs in 6.28 & 19.3 Secs
- shell4987
- · Replies 5 ·
Final speed of two billiard balls
- pebbles
- · Replies 4 ·
Is Kinetic Energy Direction-Dependent?
- BuBbLeS01
- · Replies 4 ·
Application with conservative and nonconservative forces
- Jacobpm64
- · Replies 2 ·
How Fast Does the Rim of a Spinning Disk Travel?
- Nitrag
- · Replies 1 ·
Solve Spring Gun Question Homework
- Oliviam12
- · Replies 2 ·
What Is the Angle of Initial Velocity for a Projectile at Half Maximum Height?
- Lmaonade
- · Replies 2 ·
Star temperature from B-V color
- poiuy
- · Replies 1 ·
Solving Enigmatic Physics Problems: Acceleration and Frictional Force Examples
- Flashtf
- · Replies 1 ·
Sound intensity is measured on a logarithmic scale
- matt23
- · Replies 1 ·
Measuring Elasticity of Balls using Collision Method
- camperstrike
- · Replies 1 ·
How Does Magnification Change When Switching from Convex to Concave Mirror?
- gamesandmore
- · Replies 1 ·
How is Rotational Kinetic Energy Calculated for a Merry-Go-Round?
- lgmavs41
- · Replies 1 ·