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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I deriving this Maxwell relation
- Yekonaip
- · Replies 4 ·
Rolling cylinder on an inclined plane with friction
- coldblood
- · Replies 11 ·
Difference between two formulas of resistance
- Coco12
- · Replies 15 ·
How Do I Solve This Rotational Motion Problem?
- coldblood
- · Replies 2 ·
Rotational motion problem with torque and angular acceleration
- coldblood
- · Replies 7 ·
What Determines True Statements About Wheel Motion?
- gcombina
- · Replies 3 ·
Finding a sourceable dream invention for presentation
- bigu01
- · Replies 8 ·
What is the Inverse Formula for Potential?
- Coco12
- · Replies 6 ·
Finding moles of air needed to raise tire pressure from 1 to 5 atm
- Night-san
- · Replies 7 ·
Why does reducing angle to horizontal decrease work done on cart?
- omarMihilmy
- · Replies 17 ·
Angular acceleration and speed of a falling rod on a pivot
- robbyrandhawa
- · Replies 5 ·
Does Earth's Rotation Significantly Affect Weight at the Equator?
- Xuvaze
- · Replies 6 ·
How to Solve This Rotational Motion Problem?
- coldblood
- · Replies 5 ·
What is the Moment of Inertia for a Rod?
- coldblood
- · Replies 5 ·
Question: How is the power exerted by the monkey on the rope calculated?
- peripatein
- · Replies 17 ·
Kinematics Motion Average Speeds
- negation
- · Replies 24 ·
What is the acceleration of the elevator in these scenarios?
- Ally385
- · Replies 8 ·
Rotational motion problem with a wheel and torque
- coldblood
- · Replies 3 ·
Components of torque in a solid sphere
- KiNGGeexD
- · Replies 27 ·
What is the Net Force on the Top of an Equilateral Triangle?
- Coco12
- · Replies 8 ·
Finding energy from graph area and calculating cosθ in two problems
- haha1234
- · Replies 10 ·
Stress Calculation for a Reinforced Timber Tie with Aluminium Bar
- anthonyk2013
- · Replies 16 ·
What is the Solution to a Rotational Motion Problem?
- coldblood
- · Replies 4 ·
What is the solution to this rotational motion problem?
- coldblood
- · Replies 5 ·
Theory about electric field intensity
- Coco12
- · Replies 7 ·
What is the solution to this Rotational Motion problem?
- coldblood
- · Replies 2 ·
Latent heat of Fusion and transfer problem
- PhysicsStuff
- · Replies 6 ·
Stress and strain compound bar question
- anthonyk2013
- · Replies 9 ·
Why Is the Initial Speed of a Ball Thrown Vertically 19 m/s?
- athena04
- · Replies 2 ·
Gauss' Law for Infinite Sheets of Charge
- kazukamikaze
- · Replies 3 ·
Electromagnetism, dynamics and energy
- jchard
- · Replies 1 ·
What is the correct stress in the concrete column?
- anthonyk2013
- · Replies 6 ·
Why Does the Toroid's Magnetic Field Equation Use a Cubed Distance Term?
- richyw
- · Replies 3 ·
Solving the Yoyo Problem: Velocity After Fall of h
- KiNGGeexD
- · Replies 27 ·
Statistical Mechanics - Change in Entropy
- NewtonApple
- · Replies 2 ·
How should I protect an egg dropped from a building for a physics project?
- azhang40
- · Replies 6 ·
Calculating Energy Required to Rotate a Spiral Spring by 180 Degrees
- KiNGGeexD
- · Replies 29 ·
Conservation of Energy and Angular Speed.
- astro2525
- · Replies 6 ·
A 1130-kg car is held in place by a light cable on a frictionless ramp
- mirs
- · Replies 5 ·
How much water is needed to cool a block of aluminum to a specific temperature?
- PhysicsStuff
- · Replies 4 ·
Why is centripetal acceleration negative in i direction and positive in j direction?
- haha1234
- · Replies 2 ·
Solving for an angle in 2-D kinematics
- Ascendant78
- · Replies 6 ·
How Much Does the Spring Compress When Hit by a Rolling Ball?
- mrknowknow
- · Replies 11 ·
Solve 1-D dynamics problem using integration and ?
- Ascendant78
- · Replies 4 ·
How Fast Must a Book Be Tossed to Clear a Windowsill?
- negation
- · Replies 3 ·
Strength of magnetic field required to balance gravitational force
- astru025
- · Replies 6 ·
Calculating Angular Acceleration for a Rotating Compact Disc
- gcombina
- · Replies 5 ·
Mass places o that it is in equilibrium
- mrknowknow
- · Replies 1 ·
How Fast Were the Trains Moving at the Point of Collision?
- negation
- · Replies 21 ·
Can Constants with Variables Cancel Out to Create a Constant?
- nedd
- · Replies 4 ·
Electric field magnitude midway between 2 charges
- astru025
- · Replies 2 ·
How Can You Prove the Voltage-Time Relationship Using Logarithms and Graphs?
- lewisbedwell
- · Replies 3 ·
Centripetal force lab: relating velocity, radius, mass, and period
- master x964
- · Replies 3 ·
Calculate Momentum Change for a 1.0 kg Firecracker at 25 m/s Launch Speed
- Lacnez
- · Replies 33 ·
Finding the point where the net electric field is zero
- rakeru
- · Replies 2 ·
Centripetal Force Lab Questions?
- master x964
- · Replies 2 ·
Differing weight on scales depending on approach
- Fineline00
- · Replies 11 ·
Calculate the kinetic energy of the mass
- brown20b
- · Replies 5 ·
1 gram of water @ 10Celsius + 1 calorie of heat =1 gram of water @
- manal950
- · Replies 1 ·
Angle between vectors a and b when magnitudes are equal
- patrickmoloney
- · Replies 1 ·
Why is centripetal force equal to weight at maximum speed in circular motion?
- haha1234
- · Replies 13 ·
Electric field midway between an electron and proton 0.8 nm apart
- astru025
- · Replies 5 ·
Rotational dynamics with constant CM velocity
- trulyfalse
- · Replies 3 ·
Calculating Tension and Acceleration in a Pulley System with Applied Force
- Panphobia
- · Replies 33 ·
How Do You Calculate the Maximum Height of a Rocket Launched at 70 Degrees?
- KiNGGeexD
- · Replies 7 ·
Finding Maximum Speed of an Object - 24.4X9.8
- haha1234
- · Replies 2 ·
Calculating Capacitance: A Derivation
- raggle
- · Replies 1 ·
How to Apply Partial Differentiation to V=f(x²+y²)?
- patrickmoloney
- · Replies 3 ·
Can Rotation Affect the Linear Motion of an Object's Center of Mass?
- dieyn
- · Replies 2 ·
Factors Impacting Pressure in a Static Fluid
- babygirl8131
- · Replies 1 ·
Finding equilibrium height and force after charge redistribution
- Coco12
- · Replies 17 ·
Finding magnitude P and direction of resultant from two forces
- MrMechanic
- · Replies 7 ·
Archimedes principle - special case
- Lucky7
- · Replies 3 ·
Electric field (at any point) due to a finite cylinder
- crazygirl89
- · Replies 3 ·
Falling Through Earth's Center
- Reefy
- · Replies 8 ·
How Do You Calculate Impact Duration and Average Force in Momentum Problems?
- UmarRules2000
- · Replies 4 ·
What would be the speed of the charge
- Thehumbleguy
- · Replies 1 ·
Derivatives of coordinate equations
- Rugile
- · Replies 6 ·
Potential energy: where is the error in my logic?
- Nikitin
- · Replies 1 ·
Electric field from nitrogen nucleus at 0.4 nm and 0.2 nm
- astru025
- · Replies 1 ·
Does Earth's radius matter for centrifugal force in a falling stone problem?
- Karol
- · Replies 1 ·
Conservation of Momentum/Collision
- astro2525
- · Replies 7 ·
Finding Distance D Using Conservation of Energy
- patrickmoloney
- · Replies 13 ·
Magnetic Vector Potential and conductor
- sikrut
- · Replies 3 ·
Two gear system in static equilibrium
- Jage
- · Replies 1 ·
Adding three SHM oscillations of equal frequency?
- applestrudle
- · Replies 4 ·
Rolling without slipping and a string
- trulyfalse
- · Replies 2 ·
Do negative charges gain or lose PE moving to lower potential?
- Coco12
- · Replies 10 ·
Images produced by a simple two lens microscope?
- Violagirl
- · Replies 1 ·
Centripetal/Tangential Acceleration
- PhysicsVA
- · Replies 4 ·
Amount of work done in an isothermal expansion
- pingo
- · Replies 5 ·
Rocket Launch Kinematics motion
- negation
- · Replies 3 ·
Particle sliding down a helix wire with energy conservation
- teme92
- · Replies 4 ·
Wave sources vibrating out of phase (destructive/constructive)
- kurt1992
- · Replies 3 ·
Calculating Work Done by a Force on a Particle Moving Along the X-Axis
- torn616
- · Replies 2 ·
Max Velocity and Height of Roller Coaster Track
- Panphobia
- · Replies 2 ·
Frequency versus motor RPM and number of poles
- DunceKirchhoff
- · Replies 3 ·
Determining directions of electric fields
- Coco12
- · Replies 13 ·
When does passenger catch ball thrown upward from rising balloon?
- negation
- · Replies 7 ·
Physics 2: Electromagnetic Theory (Amperè's Law, Biot-Savart, etc)
- PropulsionMan
- · Replies 4 ·