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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Calculating Gravity for Jumping in a Platform Game
- menzow
- · Replies 16 ·
A quick distance/time question.
- skg94
- · Replies 2 ·
Mass of 93 kg object measured on Venus, weighed on Mars
- hms.tech
- · Replies 1 ·
Calculating Electric Field and Force in Parallel Plate Setup
- skg94
- · Replies 30 ·
Work-Kinetic Energy Theorem problem
- anne921
- · Replies 2 ·
Solving a Physics Problem with Friction: Directions of Forces and Torques
- sapz
- · Replies 1 ·
How Many Trucks Can US Oil Production Fuel in a Year?
- cytochrome
- · Replies 3 ·
How to find the specific volume?
- xCuzIcanx
- · Replies 7 ·
Atwood's Machine with one side holding a variable mass
- coffeebird
- · Replies 8 ·
A Cylinder Rolling Down a Vertical Wall
- Puky
- · Replies 10 ·
Mason-Weaver equation and time dependend solutions
- Rosengrip
- · Replies 1 ·
Why can't an idealized fluid sustain tangential force?
- Von Neumann
- · Replies 8 ·
Calculating the moment of inertia of a cylinder
- sapz
- · Replies 2 ·
Why does (A×B)·C use sine instead of cosine?
- student34
- · Replies 15 ·
Calculating G-Forces in a Banked Turn on a Roller Coaster
- ntweisen
- · Replies 2 ·
Final temperature of 100g ice dropped into 500g water at 100°C
- Arooj
- · Replies 6 ·
How Do You Determine the Direction of a Magnetic Field in Wire Configurations?
- e.pramudita
- · Replies 1 ·
Parallel Plate Capacitor having equal charges on plates
- Tanya Sharma
- · Replies 8 ·
Scaling factor of Energy in a capacitor with change in charge
- mrcotton
- · Replies 2 ·
Solve Physics Essay on Wave Power Plants with IB Course
- Techlogic
- · Replies 1 ·
Making a DC motor speed question
- 33639
- · Replies 2 ·
LED circuit design with resistor and voltage values
- mremadahmed
- · Replies 8 ·
Calculating the Required Charge for Gravitational Force
- dfetnum
- · Replies 4 ·
Problem about Force, Work, and Energy
- mrcat100
- · Replies 3 ·
Net force on a cyclist with 100N forward and 100N resistance
- pencilcase
- · Replies 7 ·
Two Rolling Objects Racing Down a Hill?
- dwangus
- · Replies 3 ·
Calculating Error in Multiple Independent Variables
- IZlo0110
- · Replies 7 ·
Can a Cannonball's Height Exceed Its Range?
- poseidon007
- · Replies 4 ·
Find the maximum tension allowed.
- SAUMYA B
- · Replies 2 ·
Switching inertial reference frames equations
- Allie182
- · Replies 1 ·
Action and reaction pair for buoyant force.
- kennykwong
- · Replies 4 ·
Tennis Ball Launcher Calcuations
- Redfire66
- · Replies 10 ·
Why does it matter whether or not an ammeter has zero resistance?
- question dude
- · Replies 10 ·
Particle in a 1D box: how do probability and energy relate?
- Ayham
- · Replies 6 ·
Why the total tension is not zero?
- Aruna Kiran
- · Replies 6 ·
Maximum value of F - SIN Waterloo Contest
- Uns7able
- · Replies 1 ·
Wave: amplitude, frequency, wavelength
- ahchew1413
- · Replies 4 ·
Torque (of a couple) and centre of gravity MCQ
- Originaltitle
- · Replies 2 ·
Find the time interval between the above two events.
- 7even
- · Replies 11 ·
Derive the density of an ideal gas as a function of temperature?
- Outrageous
- · Replies 6 ·
What is the value of r given the change in electric potential?
- mrcotton
- · Replies 4 ·
Complex operations, bra-ket notation, confusion
- demoncore
- · Replies 1 ·
What Is Gaetan Boucher's Total Acceleration at 1/4 Lap?
- Lolagoeslala
- · Replies 35 ·
SIN Contest Water Tank in a Moving Vehicle Question
- daga2222
- · Replies 10 ·
Estimate the number of electrons flowing in a semiconductor pn junction
- nishantve1
- · Replies 1 ·
What are Newton's laws of motion versus theorems based on them?
- physics2000
- · Replies 2 ·
What Is the Tension in the Horizontal Segment Above the Attached Object?
- ML1
- · Replies 6 ·
Ratio of masses in elastic collision with symmetric scattering
- Gloyn
- · Replies 10 ·
Voltage B to D in a simple Circuit
- Justkiller91
- · Replies 9 ·
Water and mercury volume change with temperature
- spaghetti3451
- · Replies 3 ·
Static Equilibrium with buoyant force. High difficulty.
- physninj
- · Replies 6 ·
I need to find the function of f with given data
- mimi.janson
- · Replies 15 ·
Solving Static Equilibrium: Force at Support & Left End
- ehabmozart
- · Replies 3 ·
Unknown angle between two vectors
- student34
- · Replies 2 ·
Calculate the Ratio of Ib/Ia in an Electrical Circuit
- SuperHero
- · Replies 8 ·
Problem related to the vector potential of B
- nuclear_dog
- · Replies 6 ·
Derivations of KE=1/2mv^2 and PE=mgh
- FaraDazed
- · Replies 1 ·
2012 F = ma Contest, Problem 24
- luvp
- · Replies 9 ·
Find the distance with the relativity problem
- Please Wait
- · Replies 3 ·
The force of wind blowing on a wall at an angle
- hyperddude
- · Replies 4 ·
Circuit analysis problems with answers
- Log
- · Replies 2 ·
Momentum on 3 kg mass K when 2 kg mass L falls 18 meters
- BerkS
- · Replies 7 ·
Pebble falling into water; drag force
- unscientific
- · Replies 27 ·
Moment of inertia physical pendulum
- arierreF
- · Replies 11 ·
Finding stress components on an inclined plane
- physicist10
- · Replies 6 ·
Find time, given acceleration as a function of position.
- tent
- · Replies 15 ·
How to get the variables m,v^2,h and g
- epicsauce1137
- · Replies 1 ·
Sketching loci in the complex plane
- jj364
- · Replies 5 ·
Angular momentum and energy conservation.
- golanor
- · Replies 15 ·
What is the significance of having coherent light in a laser?
- Jye
- · Replies 3 ·
Energy needed for a velocity change?
- Mecia22
- · Replies 1 ·
What Is the Escape Speed from the Sun to Mercury at 25 Million Kilometers?
- Mecia22
- · Replies 3 ·
Energy of Rama just before hitting Earth
- Mecia22
- · Replies 5 ·
Finding distances between objects in a hanging mobile with torque balance
- hjcrbwg
- · Replies 3 ·
How Does Elevator Acceleration Affect Gold Trading Profits?
- Please Wait
- · Replies 34 ·
Simple definitions of magnetic flux and flux density
- martin glen
- · Replies 3 ·
How Do You Convert Weight to Newtons in Variable Gravity?
- Mecia22
- · Replies 4 ·
Two 30 kg beads sliding on a hanging ring with zero tension
- SuperHero
- · Replies 87 ·
Kinetic friction coefficient for block pulled by hanging mass
- Calabi_Yau
- · Replies 3 ·
Tangent to the centrum edge of a circle
- mimi.janson
- · Replies 11 ·
Finding mass of ice, using densities
- careless25
- · Replies 3 ·
Finding distance along a ski-jump landing slope with horizontal takeoff velocity
- Lolagoeslala
- · Replies 53 ·
Buoyant force in seawater and freshwater
- urbano
- · Replies 5 ·
Finding velocity and displacement at any time during uniform acceleration motion
- FaraDazed
- · Replies 9 ·
Find mom of inertia and frictional torque
- physicsgirl4
- · Replies 1 ·
Energy released when projectile explodes into fragments at apex
- DunWorry
- · Replies 5 ·
Current through 8Ω resistor with two 10V cells in parallel
- asdff529
- · Replies 3 ·
RC Circuit: Charges faster than discharges?
- Frozen Stair
- · Replies 4 ·
Does Solenoid Diameter Affect Acceleration of a Metal BB?
- joe_cool2
- · Replies 2 ·
Conservation of Energy + Projectile Motion
- andy343
- · Replies 7 ·
Situation involving gravity, a quarter-circular incline plane, and friction.
- Woolverton
- · Replies 1 ·
Dynamics - the physics of tobogganing and forces at an angle
- L_0611
- · Replies 2 ·
What forces act on the supports of a rectangle?
- hyperddude
- · Replies 3 ·
Distance between point charges in equilibrium (simple)
- Mitocarta
- · Replies 4 ·
Projectile Motion - motion on a horizontal surface
- bonbloc
- · Replies 2 ·
2D kinematics - Solved, but a question on the logic
- Greyt
- · Replies 3 ·
Gravitational field strength between masses
- calculator20
- · Replies 1 ·
Pendulum with fixed blocking point and period measurement
- tomkoolen
- · Replies 3 ·
Forces Concerning a Rectangular Prism
- hyperddude
- · Replies 15 ·
What Problems Can Occur When Automobile Engines Get Too Hot?
- spaghetti3451
- · Replies 2 ·