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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Three force equilibrium problem and kinematics calculations
- wmsaqqa
- · Replies 4 ·
Working with archimedes principle.
- vkash
- · Replies 5 ·
Thermodynamics and steam, temperature etc tables
- Cozy_Powell
- · Replies 5 ·
Beta particle counting efficiency?
- wendo
- · Replies 4 ·
Natural State of Matter Rest or Motion?
- GreenPrint
- · Replies 5 ·
Finding the (Newtonian) movement equation of an object in a gravitational field
- Username007
- · Replies 1 ·
Time Interval between Rocket Explosions for Spaceship Tripulant
- Jalo
- · Replies 2 ·
Work done lifting 20 kg and Newton's third law in towing
- wmsaqqa
- · Replies 10 ·
How to more accurately determine an angle?
- spike spiegel
- · Replies 3 ·
Does the Speed Ratio of Two Orbiting Masses Depend on Their Orbital Radii?
- Redoctober
- · Replies 1 ·
Rotational kinetic energy of a wheel
- richyr33
- · Replies 4 ·
Power needed to push a toy car up an incline at constant speed
- tsw99
- · Replies 4 ·
Finding average speed on a velocity vs time graph
- ja!mee
- · Replies 6 ·
Simple Harmonic Motion question.
- gabloammar
- · Replies 4 ·
Lagrangian -> Equation of motion derivation
- Simonelis
- · Replies 1 ·
Potential energy stretched wire
- ahmeeeeeeeeee
- · Replies 1 ·
Why do displaced electrons remain stationary if electrons orbit the nucleus?
- logearav
- · Replies 6 ·
Work done on gas from R to P in a thermodynamic cycle
- msaleh87
- · Replies 7 ·
What Happens to Gas Temperature When a Moving Vessel Stops?
- vkash
- · Replies 15 ·
Energy of two charges in front of a plane
- mrteo
- · Replies 2 ·
Why Does the Balance Arm Rotate if the Total Torque Is Zero?
- Saitama
- · Replies 10 ·
Centripetal force carnival ride question
- Ishida52134
- · Replies 7 ·
What is the net force on the system without friction?
- canicon25
- · Replies 4 ·
When do U234 and Th230 have equal atom counts?
- Howlin
- · Replies 9 ·
Differential amplifier with zener diodes
- Femme_physics
- · Replies 55 ·
Finding the detachment angle for a ball rolling off a circle
- Plutonium88
- · Replies 15 ·
[Work/Energy] a particle inside a field
- BitterX
- · Replies 1 ·
What is the relationship between speed and acceleration in simple terms?
- moatasim23
- · Replies 1 ·
Speed of Pi Meson - Relativistic question
- ZedCar
- · Replies 5 ·
Effective Resistance if bent in the form a circle
- logearav
- · Replies 2 ·
Why is E = V/x used for parallel plate capacitor instead of E = -V/x?
- logearav
- · Replies 12 ·
Find torque in disc brakes given normal force and coefficient of friction
- bling-bling
- · Replies 1 ·
Compton Scattering of a photon by a moving electron
- athrun200
- · Replies 6 ·
Finding the period of a simple pendulum given angular acceleration
- guss
- · Replies 4 ·
Applied friction point between two disks
- AxioWolf
- · Replies 5 ·
AS Physics - Polarisation Problems.
- JediArron
- · Replies 1 ·
Calculating Efficiency in a Wheel and Axle System
- chikis
- · Replies 14 ·
Momentum and kinetic energy when same force acts on different masses
- DanicaK
- · Replies 1 ·
Constant velocity forces and kinetic energy ratio problems
- wmsaqqa
- · Replies 11 ·
UFO - time taken to travel to moon
- ZedCar
- · Replies 4 ·
Minimum Time Delay for Communicating with Astronaut on Moon: 2.5s
- ZedCar
- · Replies 2 ·
Calculating Forces in a Moving Lift
- SuperNova1
- · Replies 6 ·
How coordinate system choice affects tension force calculations
- Amideus
- · Replies 1 ·
How do you find the center of mass for an object with multiple parts?
- PhysicForFun
- · Replies 6 ·
Coefficient of Friction of a KE-Work-PE situation
- robertsun
- · Replies 13 ·
Formula for calculating distance traveled with uniform acceleration
- An Indiot
- · Replies 7 ·
Finding the phase angle for simple harmonic motion
- mm2424
- · Replies 7 ·
Getting the electric potential function using the electric field components
- ahmeeeeeeeeee
- · Replies 5 ·
Block Sliding Down Circular Ramp (w/ Friction)
- Bakeman
- · Replies 6 ·
Qestion about pressure transducer
- fatima_ib89
- · Replies 5 ·
Can someone me understand this lesson? I tried, but I just can't get it
- Dosirak
- · Replies 2 ·
Why jumping on a trampoline is not simple harmonic motion
- gabloammar
- · Replies 11 ·
Finding disparity δ = α - β in terms of a, D, d, e, f
- SoggyBottoms
- · Replies 3 ·
How to compute the solid angle of a cone with half-angle θ
- azerty12
- · Replies 2 ·
Moment of Inertia of a non-uniform density paraboloid
- emgram769
- · Replies 8 ·
Potential Energy of a spring problem
- LalaLapras
- · Replies 1 ·
Torque worksheet problems 2, 3, 4 and 5
- hoopermk
- · Replies 1 ·
Sphere Charge Hanging on Thread (Electric Field Question)
- HarleyM
- · Replies 5 ·
Calculating Electrostatic Repulsion in Nuclear Fission
- snash1057
- · Replies 1 ·
Rolling with no slipping problem
- Ianray
- · Replies 2 ·
Direct current in electric motors?
- Plasm47
- · Replies 3 ·
What is the velocity of the block when it reaches the equilibrium position?
- paul11
- · Replies 5 ·
Very simple Accelerated motions
- dman5505
- · Replies 3 ·
Resolving a 20N force in direction N 60° E
- slingboi
- · Replies 6 ·
How Does Converting eV to Joules Work?
- Peter G.
- · Replies 2 ·
Exam question, simple physics calculus.
- An Indiot
- · Replies 7 ·
Dim. Analysis: Water Pressure on Europa
- sergey90
- · Replies 4 ·
Solving Simple Relativity: Time, Speed Reduction & More
- hansbahia
- · Replies 4 ·
Third resonance length frequency(which formula do i use?)
- supernova1203
- · Replies 3 ·
Plotting electric field lines of a dipole
- silverfox
- · Replies 4 ·
Thermistor and Op-Amp Circuit Design
- songoku
- · Replies 9 ·
Linear velocity of a spring with mass
- tomerb
- · Replies 1 ·
How Do You Calculate UAB in a Wheatstone Bridge with Changing Resistance Values?
- commelion
- · Replies 2 ·
Experiment testing Rotational Kinetic Energy with a hollow cylinder
- aniion
- · Replies 17 ·
Horizontal Plane With Friction And Incline Plane With no Friction
- amgoda
- · Replies 10 ·
Moment of inertia of triangle rotated about y axis
- Carnivroar
- · Replies 4 ·
How Does Mass Influence Friction in Physics Problems?
- Vick007
- · Replies 15 ·
Work and energy homework problem
- men10024
- · Replies 6 ·
Total power developed and kinetic energy
- thoradicus
- · Replies 2 ·
Force of attraction between proton and electron
- GRAvit__
- · Replies 5 ·
How to produce a standing wave question
- michaelraymen
- · Replies 4 ·
Torque, equilibrium and calculating angle of forces
- mm2424
- · Replies 1 ·
How do I know that F_B acts perpendicular to F_A?
- fee
- · Replies 7 ·
Magnetic flux through a coil. Field generated by a straight conductor.
- Biktor
- · Replies 1 ·
Kicked ball hits bird and falls
- HelpMeh
- · Replies 12 ·
Free Oscillations of materials
- adu1905
- · Replies 13 ·
Eqn for SHM, sin function, so why cos?
- ZedCar
- · Replies 3 ·
Power and rate of potential energy
- thoradicus
- · Replies 4 ·
Initial speed of 10 g ball thrown down from 2 m height
- Fanatic
- · Replies 1 ·
Steel Building Height Variation in Summer vs Winter: Thermal Physics Analysis
- retsehc0401
- · Replies 1 ·
Optics(Converging lens and Diverging lens)
- BSElectrician
- · Replies 3 ·
How Do You Calculate the Buoyant Force of a Helium Balloon?
- TMO
- · Replies 1 ·
Solving Physics Problem: Why Fn = mgsinΘ?
- Esoremada
- · Replies 3 ·
Question regarding gravitational waves
- blueberrynerd
- · Replies 5 ·
Two children stand on the edge of a merry-go-round
- Cisneros778
- · Replies 8 ·
Where is better to put the tube for drinking water better?
- Thoughful
- · Replies 7 ·
Uncertainty and significant figures
- songoku
- · Replies 14 ·
Does Heating a Pop Can Increase Internal Pressure?
- p.ella
- · Replies 2 ·
Pulling my hair out over this one
- kieslingrc
- · Replies 10 ·
Find max height of inclined plane
- Ilovepysics
- · Replies 1 ·