Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Calculating gradient with distance and speed
- Mukilab
- · Replies 5 ·
Weight on a Scale Down an Incline vs. True Weight
- Error
- · Replies 1 ·
Compare centripetal acceleration of Mars and Earth
- shnigglefratz
- · Replies 10 ·
Newton's Laws, Finding Correct Acceleration and Applied Force
- Error
- · Replies 6 ·
Finding velocity when a 5N force acts on a 1kg mass over 4m
- -Physician
- · Replies 4 ·
Momentum of a Tennis Ball at an Angle
- PeachBanana
- · Replies 1 ·
Momentum of objects acted upon by same force
- mrhingle
- · Replies 1 ·
Solving Engineering Equation for Bungee Jumper: What's the Answer?
- IanL
- · Replies 2 ·
Statistical mechanics: Particles with spin
- SoggyBottoms
- · Replies 1 ·
Force and acceleration leading to weight of a parachutist
- Mukilab
- · Replies 4 ·
Is kinetic energy of center of mass of a system is equal to KE of of system?
- vkash
- · Replies 7 ·
Calculating the gravitational field due to a horizontal uniform thin disk
- AaronKnight
- · Replies 1 ·
Work, Power, Frictional Force - seems a bit tricky for me
- iJamJL
- · Replies 6 ·
Ring on string in equilibrium: proving equal angles at 40°
- furor celtica
- · Replies 2 ·
Pendulum Period change due to gravitational force change
- Sekonda
- · Replies 5 ·
The rocket launch and changing gravity
- marco12345a
- · Replies 12 ·
Gymnast swinging on bar with 1.6kN force at lowest point
- Kotune
- · Replies 19 ·
How to Calculate Final Velocity and Kinetic Energy Lost in a Collision?
- ScienceGeek24
- · Replies 29 ·
Average force on baseball and contact forces between boxes on incline
- shaggyace
- · Replies 1 ·
Reading position graph for a spinning wheel's angular and tangential speed
- scruffles
- · Replies 8 ·
Finding the Kinetic Friction Force using Mass and Acceleration
- Strobot
- · Replies 1 ·
Energy dissipated through resistor
- hopkinmn
- · Replies 4 ·
Rings Vs Disks In Moment of Moment of Inertia Integral
- teroenza
- · Replies 2 ·
How do I solve basic kinematic problems with projectile motion?
- mtsac
- · Replies 2 ·
Calculating Torque and Linear Acceleration of a Rotating Rod
- ScienceGeek24
- · Replies 38 ·
Finding efficiency between transformers.
- Crusaderking1
- · Replies 3 ·
Charge over an Insulating Plate
- AJDangles
- · Replies 4 ·
Electric Potential and charge problem
- Biosyn
- · Replies 4 ·
Formula for the Length of the pipe.
- ynehs
- · Replies 2 ·
How Do Magnetic Field Circuits Function in Facesinthespaces?
- aokidopi
- · Replies 2 ·
How long will it take for one cylinder to turn one revolution?
- ScienceGeek24
- · Replies 9 ·
What Are 3 Driver-Operated Controls That Cause Acceleration in an Automobile?
- ErrorProxy
- · Replies 3 ·
Magnetic Field and electric Field
- physicsdreams
- · Replies 1 ·
Calculating Average Induced EMF in a Rotating Coil
- physgrl
- · Replies 6 ·
Deriving Formula of Kinetic Energy using f = ma
- Hoddie54
- · Replies 1 ·
Sphere rolls down and compresses spring
- scruffles
- · Replies 1 ·
Solve Exam Question: Wrong Relationship?
- Awesome-o
- · Replies 1 ·
How fast did you throw the ball in order to get it into the basket?
- Kotune
- · Replies 8 ·
Calculating maximum load and counterweight of a tower crane
- mehagar
- · Replies 3 ·
Does the Pivot Exert a Moment Reaction for Equilibrium?
- eurekameh
- · Replies 3 ·
Brewster's angle for sunlight on water and angle of refraction
- squirrelly
- · Replies 1 ·
Using Kirchhoff's rules to calculate current
- trevorwisc
- · Replies 3 ·
Finding final pressure for gas with temperature and volume change
- zack7
- · Replies 1 ·
Ballistic pendulum, finding final height
- jorcrobe
- · Replies 8 ·
Acceleration due to gravity using a compound pendulum experiment
- Superdreamer
- · Replies 3 ·
What Is the Force on a Charged Particle in a Magnetic Field?
- bdh2991
- · Replies 4 ·
Uniform Circular Motion - Finding Linear Speed
- MohammadG
- · Replies 1 ·
Angular acceleration without rotation?
- eurekameh
- · Replies 4 ·
Help with a physics problem from an image
- manal950
- · Replies 10 ·
Proving that apparent weight is 5 times actual weight (no numbers)
- testme
- · Replies 12 ·
Mouse onto the edge of phonograph turntable
- tonit
- · Replies 8 ·
Horizontal force to push a 30 kg block up a 25° incline at 0.8 m/s²
- leianne
- · Replies 15 ·
Torque required to rotate a disk
- connor02
- · Replies 13 ·
Landing Ramp Distance Required for Stunt Car Launch
- Kotune
- · Replies 11 ·
How can I find the coefficient of friction for an object on an inclined plane?
- Jandaberg123
- · Replies 1 ·
Basic circuit question (True/False)
- Sean1218
- · Replies 5 ·
Buoyancy problem in two liquids
- altamashghazi
- · Replies 8 ·
How Long Does It Take a Package to Land in a Moving Truck From an Overpass?
- fyesics
- · Replies 3 ·
Understanding Forces on Inclined Surfaces
- umaza
- · Replies 9 ·
Circuits with capacitators connected parallel
- mbkau00
- · Replies 40 ·
How Is the Work Done by Gravity Calculated in This Physics Problem?
- iJamJL
- · Replies 8 ·
How to Calculate Projectile Motion with Initial Horizontal Velocity
- Kotune
- · Replies 2 ·
Calculating Final Velocity of Mass 1 in an Elastic Collision
- ScienceGeek24
- · Replies 39 ·
What is Potential Energy of Mass m?
- senseandsanity
- · Replies 6 ·
Solve the Fiendish Physics Final Exam Challenge
- sasuke07
- · Replies 1 ·
Angular acceleration of cylinder with two ropes at different radii
- ScienceGeek24
- · Replies 2 ·
Understanding Velocity and Distance on an Inclined Plane with Friction
- nesan
- · Replies 7 ·
Capacitance of a Metal Slab Inserted in an Air Capacitor
- forestmine
- · Replies 2 ·
What is the spring constant of spring?
- Mdhiggenz
- · Replies 4 ·
Mechanics, conservation of momentum.
- sg001
- · Replies 32 ·
Find the dimension of capacitor given [phi]E and Id
- a4pat
- · Replies 5 ·
Rope with mass but ignoring Pulley
- umaza
- · Replies 2 ·
Find final velocity and kinetic energy lost.
- ScienceGeek24
- · Replies 2 ·
Orbital velocity of a baseball thrown on Deimos
- PhysicsScrub
- · Replies 2 ·
Question: How do I accurately calculate the resultant of 3 vector inputs?
- Chapman2233
- · Replies 1 ·
Potential Difference of a Capacitor System
- forestmine
- · Replies 16 ·
How Do Forces and Tension Interact in Pulley Systems?
- umaza
- · Replies 3 ·
Solving circuit using complex numbers
- masterjoda
- · Replies 6 ·
A spring is compressed by 90 cm
- ScienceGeek24
- · Replies 6 ·
Half Life - Calculate Fraction Remaining
- jendrix
- · Replies 8 ·
Superposition of two wavefunctions
- Leb
- · Replies 3 ·
Calculating Force Exerted by a Pivot on a Meter Rule
- Taylor_1989
- · Replies 4 ·
A wheel rotates with a constant angular acceleration of 3.30 rad/s2.
- KTANNE
- · Replies 1 ·
Net gravitational force on earth
- fa08ti
- · Replies 5 ·
Question on magnets and induced magnetism
- connor02
- · Replies 1 ·
Deriving Energy Levels of a Particle in a Box
- binbagsss
- · Replies 5 ·
Mouse falls on rotating disc, find the work it needs to go to the center of it
- tonit
- · Replies 2 ·
Calculating Forces and Acceleration of a Grand Piano
- nesan
- · Replies 4 ·
Particle breaks into two others
- bb.minhtri
- · Replies 16 ·
Proof using mainly classical mechanics
- physicsjock
- · Replies 5 ·
Calculating Piston Movement in a Container
- batballbat
- · Replies 17 ·
Calculate total time taken for an object thrown at an angle from a height
- LovePhys
- · Replies 3 ·
How Does Resonance Affect Greenhouse Gas Absorption?
- Peter G.
- · Replies 1 ·
Creating an Electrical field equation
- Alv95
- · Replies 14 ·
Statistical mechanics: Particle on a spring
- SoggyBottoms
- · Replies 2 ·
Isobaric Compression: Calculate Q, W and \Delta E
- SoggyBottoms
- · Replies 1 ·
How do you find average value of normal acceleration?
- gikiian
- · Replies 5 ·
Projectile Motion - Distance between Packages
- MohammadG
- · Replies 2 ·
Magnitude of the current in a battery
- nickm
- · Replies 4 ·
Momentum of projectile, i think
- mdmode
- · Replies 5 ·