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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Understanding Velocity Transformation
- Zeeshan Ahmad
- · Replies 8 ·
Why calculate velocity at the top of a loop, not the bottom
- annamal
- · Replies 9 ·
What Is the Best Method to Calculate Gas Flow Through an Orifice?
- FranzS
- · Replies 5 ·
How Does Snell's Law Affect Wavelength?
- diggadigga
- · Replies 5 ·
Potential difference of a ring rolling in magnetic field
- songoku
- · Replies 34 ·
Velocity of two masses due to electric potential energy
- Jaccobtw
- · Replies 3 ·
Tension in string pulling two carts
- annamal
- · Replies 14 ·
What is the electric field inside an infinite cylinder?
- Jaccobtw
- · Replies 7 ·
Calculating Magnetic Energy Between Plates
- Roger Dalton
- · Replies 1 ·
Calculating Magnetic Induction of Moving Planar Condensator
- Physworld
- · Replies 1 ·
Question About an F=ma Problem with a small ball impacting a ramp
- mopit_011
- · Replies 11 ·
Electric Field Inside a Gaussian Surface with Point Charge q
- Jaccobtw
- · Replies 4 ·
Physics homework help needed -- A mass sliding down a ramp with friction
- pilot12
- · Replies 14 ·
Trouble with a Rocket Propulsion question (Variable Mass & Momentum)
- vparam
- · Replies 2 ·
Specific heat in for the Otto cycle
- dinoclaro
- · Replies 1 ·
Surface charge density of a plane
- Guillem_dlc
- · Replies 5 ·
The occupation probabilities of electrons in different states
- Neo Tran
- · Replies 1 ·
Friction on a box in the bed of a pickup truck accelerating up an incline
- yesmale4
- · Replies 12 ·
Voltage Confusion: What Am I Missing?
- Jaccobtw
- · Replies 1 ·
Forces applied to a block on a ramp
- yesmale4
- · Replies 17 ·
How Does Projectile Angle Affect Asymptotic Behavior in Physics Graphs?
- SayedD
- · Replies 23 ·
Forces on two different blocks with two pulleys
- Amphibia
- · Replies 10 ·
Average speed question about a hovercraft
- Triple take
- · Replies 2 ·
Pulling down on the string connected to a whirling block on a table
- farfromdaijoubu
- · Replies 1 ·
Calculating Electric Field at Point P(0,0'03,0'04)
- Guillem_dlc
- · Replies 9 ·
Pulley system to balance the weight of a person
- lorenz0
- · Replies 7 ·
Potential on the axis of a uniformly charged ring
- Guillem_dlc
- · Replies 3 ·
Flux of the electric field that crosses the faces of a cube
- Guillem_dlc
- · Replies 7 ·
Ampere's Law -- What is the meaning behind each part?
- np115
- · Replies 3 ·
Boundary Conditions for an infinite rectangular pipe
- guyvsdcsniper
- · Replies 4 ·
Why is my calculation for a rocket's maximum range incorrect?
- yesmale4
- · Replies 21 ·
Doubts about the electric field created by a ring
- Guillem_dlc
- · Replies 6 ·
Minimum seperation of two electrons moving toward each other
- physicks885
- · Replies 4 ·
Force on a particle of a linear charge distribution
- Guillem_dlc
- · Replies 1 ·
Two conducting spheres a distance d away with charges +q and -q
- Jaccobtw
- · Replies 2 ·
Solving Kirchoff's Laws: Are My Answers Correct?
- NikitaMazepin
- · Replies 9 ·
Min Plane Height to Drop Bomb in Hollow: 335m
- blue_eyes_88
- · Replies 16 ·
Making a Velocity vs Time graph for a bullet
- Anmol Dubey
- · Replies 4 ·
Sliding resistance of eccentrically loaded block
- hillbilly63
- · Replies 20 ·
Gauss' Law applied to this Charged Spherical Shell with a small hole
- Jaccobtw
- · Replies 10 ·
Question about elastic limit and yield point
- songoku
- · Replies 2 ·
[Ohm's law] Why does the answer key use the time after 5 seconds?
- bluesteels
- · Replies 5 ·
Conservation of momentum of spacecraft and asteroid
- songoku
- · Replies 10 ·
Acceleration of Mass m: Problem Solving
- pizzamakeren
- · Replies 10 ·
Mechanism of mechanical transverse wave in solids
- vcsharp2003
- · Replies 10 ·
Find the acceleration in circular motion
- theerenwithther
- · Replies 6 ·
Method of images between parallel plate capacitor
- guyvsdcsniper
- · Replies 20 ·
A mass sliding down the inclined plane -- Will it stop?
- rudransh verma
- · Replies 14 ·
Method of Images for a single point charge in a capacitor
- guyvsdcsniper
- · Replies 1 ·
How to Calculate Tilt for an AR-15 Simulator?
- gutymaule98
- · Replies 11 ·
Potential energy in case of Atwood machine
- rudransh verma
- · Replies 15 ·
Bastelanleitung für Stromlinienkörper
- uztrewq3
- · Replies 5 ·
A boat being pulled by two other boats with cables
- Lay1
- · Replies 10 ·
Calculating the theoretical force of repulsion between two magnets
- B-RY
- · Replies 4 ·
Block pulled up the incline problem
- rudransh verma
- · Replies 22 ·
Is Electric Flux Through a Half Sphere Zero According to Gauss' Law?
- MatinSAR
- · Replies 20 ·
To find the reaction in a system at a ring
- gnits
- · Replies 2 ·
A block coming down the incline
- rudransh verma
- · Replies 16 ·
Find the electric field of a charged arc a distance R away
- Jaccobtw
- · Replies 9 ·
Why does a traveling wave pulse get distorted?
- vcsharp2003
- · Replies 17 ·
Entropy: Does Disorder Really Measure Order?
- Jaccobtw
- · Replies 8 ·
To find the forces acting in a system in equilibrium
- gnits
- · Replies 5 ·
Toroidal Inductor Flux Calculation
- MadelineChoate
- · Replies 3 ·
Work done in moving a body up an incline
- rudransh verma
- · Replies 13 ·
Understanding Fourier Transforms
- P99
- · Replies 1 ·
Electrical flux passing through the cube
- MatinSAR
- · Replies 4 ·
A block falling onto a spring (SHM related question)
- Tea_Aficionado
- · Replies 1 ·
Finding the quantum number using Morse Potential
- guyvsdcsniper
- · Replies 14 ·
Why don't we account for energy lost in collision here? SHM
- Tea_Aficionado
- · Replies 23 ·
Electric Potential Difference -- Conceptual Question
- anon1234
- · Replies 6 ·
Energy Conservation Spring Pulling Mass Up Incline Plane
- Creepypunguy
- · Replies 11 ·
How do we calculate the desorption rate in this case?
- Hananism
- · Replies 3 ·
Question on the Newtonian displacement of light
- brpetrucci
- · Replies 12 ·
Find net velocity of charged particle in electric field (symbols only)
- Jaccobtw
- · Replies 14 ·
Experiment with an Electroscope, a Charged Rod and my hand
- MatinSAR
- · Replies 4 ·
How Does Pivot Point Location Affect the Time Period of a Physical Pendulum?
- Yossi33
- · Replies 14 ·
Energy required to move an object to Earth's surface
- songoku
- · Replies 4 ·
Can High Velocity Cause Hailstones to Melt?
- dobbygenius
- · Replies 12 ·
Why is linear acceleration zero if angular acceleration is nonzero?
- Fernando Rios
- · Replies 3 ·
Solving Part (b): Find F3, F4, F1 and F2
- gnits
- · Replies 7 ·
Comparing Cube A & B's Temperature Change
- pogochewy
- · Replies 6 ·
How Does Water Affect the Net Force on a Submerged Stone?
- rudransh verma
- · Replies 69 ·
Evaluating the boundary conditions for a rectangular pipe
- guyvsdcsniper
- · Replies 19 ·
A misconception I have about impulse formula interpretation
- elElegido
- · Replies 2 ·
Why can the potential energy at any point be chosen to have any value?
- rudransh verma
- · Replies 65 ·
Bomb explosion -- calculating the momentum of one of the fragments
- rudransh verma
- · Replies 4 ·
How to Calculate Variable Force on a Particle with Varying Coordinates?
- rudransh verma
- · Replies 2 ·
Could the Image from the First Mirror Be Real for the Second Mirror?
- Father_Ing
- · Replies 7 ·
What Is Centripetal Acceleration?
- I Tree
- · Replies 1 ·
How does Newton's 1st Law impact centrifugal force? Does it exist?
- physicsfan101
- · Replies 12 ·
Ways to improve the washing of car rims
- ttesss123
- · Replies 4 ·
Horizontal velocity of a basketball as it goes through the hoop
- yesmale4
- · Replies 14 ·
Mass, density, volume: Find the volume of an alloy
- dominicwild
- · Replies 14 ·
Finding the mass of two metals in an alloy
- Mikiil
- · Replies 2 ·
Net Force of A: Diagram Analysis
- Spotify
- · Replies 3 ·
Calculating the Radius of a Hot Air Balloon to Withstand a Load of 300 kg
- Lenoshka
- · Replies 2 ·
Is Bulb A Brighter in a Parallel Circuit Due to Potential Difference?
- rokunanto
- · Replies 4 ·
How do I calculate static and dynamic pressure for a wind tunnel lab report?
- octo17
- · Replies 1 ·
Amount of work in displacing a brick
- rudransh verma
- · Replies 40 ·
Power formula for circuit when another resistor is added in
- bluesteels
- · Replies 9 ·