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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Solving Soccer Ball Kinematics: Max Height & Vertical Velocity
- zelda1850
- · Replies 2 ·
How Does Momentum Change When a Ball Bounces Off a Wall?
- yamugushi
- · Replies 8 ·
How to Solve a Circuit with Two Batteries using Kirchoff's Laws
- physicsfun_12
- · Replies 9 ·
U.S. Physics Olympiad F=ma 2008: Problem 12
- Ritted
- · Replies 3 ·
Telescope image size and converging mirror object distance
- ilovephysics9
- · Replies 3 ·
What is the horizontal component of the force pushing him forward?
- zelda1850
- · Replies 20 ·
Sources of error in 2D collision momentum lab
- TaintedLove
- · Replies 2 ·
Can a Man Inside a Box Move It?
- cagdassalur
- · Replies 9 ·
How to Calculate the Coefficient of Friction on a 20 Degree Incline?
- emonroe14
- · Replies 3 ·
Working out velocity for my coursework [Very confusing]
- Physssics
- · Replies 1 ·
Calculating Acceleration and Tension in a Pulley System on an Inclined Plane
- squintyeyes
- · Replies 5 ·
Find Integrals of Motion for Particle in Magnetic Dipole Field
- Mumba
- · Replies 2 ·
Volume of Helium Balloon - Paper Clip Balancing Problem
- abcd1230
- · Replies 6 ·
Ideal gas law hot air balloon problem
- lm93
- · Replies 8 ·
Centripetal acceleration and coefficient of static friction
- JSapit
- · Replies 8 ·
If kinetic energy must double, what multiplies the speed?
- majormuss
- · Replies 8 ·
Parabolic Motion of a projectile
- wraithseeker
- · Replies 3 ·
What is the tension on a clothes line with a 4.0 kg magpie in the center?
- Admiral_
- · Replies 4 ·
Mass of a paper clip question
- zelda1850
- · Replies 11 ·
What Happens to Energy When a Ball Bounces off a Wall?
- yamugushi
- · Replies 2 ·
Where Does Gravitational Force Point Between a Satellite and Earth?
- zelda1850
- · Replies 1 ·
What is the Launch Speed of the Package?
- D. Tran
- · Replies 3 ·
Calculating Frequency Changes in a Guitar String
- Shaley
- · Replies 4 ·
Clock problem involving displacement
- halenb
- · Replies 7 ·
What could you do to increase efficiency?
- lauralovesyou
- · Replies 1 ·
What is the force acted upon a 120 kg man who jumps off a 5 story building?
- amitpop
- · Replies 6 ·
Finding v1 when v2 = 2v1 in distance/time equation
- henrbp29
- · Replies 3 ·
Determining the frictional resistance.
- lauralovesyou
- · Replies 1 ·
Calculating the minimum vacuum force for a climbing robot
- amrbekhit
- · Replies 1 ·
How does a Hamiltonian act on a combined orbital and spin state space?
- go quantum!
- · Replies 1 ·
Deriving kinematic equations for constant jerk
- UrbanXrisis
- · Replies 21 ·
Force Question: Hammer vs. Nail Impact
- zelda1850
- · Replies 1 ·
Rear view mirror and field of view
- Punch
- · Replies 5 ·
Max Power Output of Solar-Thermal Plant in Desert
- vladimir69
- · Replies 3 ·
Problem using the ideal gas law
- lm93
- · Replies 8 ·
Circuit Analysis and resistance
- gnarrr
- · Replies 4 ·
Electric potential along the centre line between 2 charged plates
- rreedde
- · Replies 1 ·
How Do You Calculate the Moment of Inertia for a Uniform Solid Block?
- demonelite123
- · Replies 1 ·
Find the electric force exerted on one sphere by the other.
- wmrunner24
- · Replies 6 ·
Velocity in the horizontal and vertical direction
- stargirl17
- · Replies 3 ·
How Much Counter Weight is Needed for a Trebuchet to Hit a Specific Distance?
- Water Man
- · Replies 1 ·
An Interesting Gravitation Problem
- k1point618
- · Replies 5 ·
Momentum and energy in an inelastic collision
- bburn
- · Replies 3 ·
AP Physics Multiple Choice Concept Question
- ShamTheCandle
- · Replies 2 ·
Finding Electric Field on the Bisector of a Non-Uniformly Charged Rod
- Fronzbot
- · Replies 20 ·
What is the Differential Equation for a Forced Driven Oscillator with Damping?
- drszdrsz
- · Replies 6 ·
Finding a neutral point, electric fields. Simple algebra.
- SuperCup
- · Replies 4 ·
Calculating Hydraulic Pressure in a Neutron Star
- j-e_c
- · Replies 5 ·
Calculating the Angle of Projection
- Archer2338
- · Replies 3 ·
Disparity of fundamental forces
- Peter Michael
- · Replies 1 ·
Hooke's Law - A spring between 2 masses accelerating to the right.
- CaptainSFS
- · Replies 7 ·
Friction- related to banking of road
- paulrishav93
- · Replies 1 ·
Forces- Centripetal acceleration
- majormuss
- · Replies 3 ·
Wave on a string tied to a weight
- Issacros
- · Replies 1 ·
Calculate Moment of Inertia for Sphere with Thick Walls
- hatephysics
- · Replies 7 ·
Impulse and Momentum of two cars
- patymae
- · Replies 3 ·
Force when dragging a suitcase at constant velocity
- victorlee2
- · Replies 9 ·
Calculating Minimum Power to Climb a Hill
- majormuss
- · Replies 1 ·
Energy, non-conservative and conservative forces question
- holezch
- · Replies 7 ·
What Do the Slope and Y-Intercept Represent in a Force vs. Acceleration Graph?
- yeopar
- · Replies 5 ·
Magnetic field within holey wire
- doive
- · Replies 2 ·
A-level electron speed question
- felix-corpus
- · Replies 1 ·
Ball on string projected horizontally hits the nail after swinging up
- melancholy2
- · Replies 3 ·
How to find acceleration without being given time
- majormuss
- · Replies 4 ·
How Do You Solve the Block and Spring Dynamics Problem?
- fireemblem13
- · Replies 1 ·
How does gravity work?
- lauralovesyou
- · Replies 1 ·
How does inclination affect the efficiency of a ramp?
- lauralovesyou
- · Replies 1 ·
Does Momentum Change in Horizontal Direction When Mass is Lowered?
- Nikkolas
- · Replies 6 ·
How Is the Elevator's Acceleration Calculated Using Newton's Second Law?
- cheerspens
- · Replies 1 ·
Solve Basic Spring Problem: Minimum Distance Between Connected Blocks
- fireemblem13
- · Replies 2 ·
How Is Tension Calculated in a Helicopter Rescue Operation?
- D. Tran
- · Replies 1 ·
Solenoid with a magnetic core problem
- physstudent1
- · Replies 2 ·
Where does the energy come from when a spinning man pulls his arms in?
- Ali Asadullah
- · Replies 7 ·
Catenary - rope hanging between poles
- Jonnyb42
- · Replies 3 ·
Scale reading in elevator moving at constant speed
- black_hole
- · Replies 3 ·
Actual truck speed (geometric optics)
- Aafour
- · Replies 6 ·
Uniform vertical circular motion
- twinklestar10
- · Replies 12 ·
Tension in two wires supporting a 150 N sign at 50° and 40°
- P.townsville
- · Replies 1 ·
Easy collision problem I keep getting wrong
- SoulInNeed
- · Replies 3 ·
Electron-positron collisions and decay in Special Relativity
- Keano16
- · Replies 2 ·
Maximum refractive index for total internal reflection in quartz at 34°
- runfast220
- · Replies 1 ·
Work Done by Increasing Plate Distance of Flat Capacitor
- mmoadi
- · Replies 2 ·
Voltage and field between parallel plates with varying distance
- mmoadi
- · Replies 2 ·
Calculating the Weight of a 13.25 kg Box
- black_hole
- · Replies 2 ·
Calculate Orbital Velocity for 5130kg Satellite at Jupiter Orbit
- tigerwoods99
- · Replies 9 ·
Different materials - Elastic modulus
- flower76
- · Replies 13 ·
Work and motion strategies to a problem
- wallstreet
- · Replies 4 ·
Taking the AP b and recently i did this lab on collision
- victorlee2
- · Replies 4 ·
Kirchhoff's Laws: Solving Parallel Resistors w/ Example
- raptik
- · Replies 2 ·
How to Solve an Introductory Momentum Problem Using Impulse?
- majormuss
- · Replies 2 ·
Work and Power of pulling student
- Ki-nana18
- · Replies 7 ·
Solving the Acceleration of a Rectangular Block on a Triangular Block
- fireemblem13
- · Replies 2 ·
Maximum acceleration of a dot on a slinky?
- uberifrit
- · Replies 1 ·
Simple vectors question that I can't seem to get right?
- alexgmcm
- · Replies 2 ·
Which Spring Oscillation Frequency is Correct?
- JoanF
- · Replies 8 ·
Calculating % Kinetic Energy Conversion in Ballistic Pendulum
- gold123456th
- · Replies 4 ·
Finding the Magnitude of a Horizontal Force
- GhostlyKiss
- · Replies 4 ·
Simplifying momentum conservation equation with bullet and clay block
- gold123456th
- · Replies 4 ·
Calculating h for Blood Transfusion Needle
- Dr.Wasim
- · Replies 1 ·
Setting up a centrifugal force question
- rn433
- · Replies 2 ·