Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Calculate how many revolutions the flywheel turns
- javii
- · Replies 1 ·
Calculate Change in Speed Using Unit Vectors: Easy Physics Solution
- Deadawake
- · Replies 2 ·
What is the force exerted by a laser pulse on a target?
- Kara386
- · Replies 4 ·
Moment of inertia of a non uniform disc
- Rnm
- · Replies 9 ·
Get vibration frequency form absorption spectra line
- want2graduate
- · Replies 2 ·
Formula for delta star in capacitors
- avistein
- · Replies 4 ·
Finding frequency of an AC current sin wave?
- jlmccart03
- · Replies 6 ·
Energy necessary to put something in orbit
- undividable
- · Replies 3 ·
Projectile Motion- Object Launched in the Air
- Catchingupquickly
- · Replies 3 ·
Using Laplace to solve circuit analysis
- Cocoleia
- · Replies 1 ·
Why is the potential difference between points X and Z zero?
- LuTEX
- · Replies 12 ·
Trouble finding the amplitude in a SHM problem
- frozen-pizza
- · Replies 8 ·
Fluid Statics/depth in a cylinder
- tennisgirl92
- · Replies 6 ·
Type of circuit -- What would you call this?
- superslow991
- · Replies 2 ·
Finding the direction of current given a varying magnetic....
- alexdr5398
- · Replies 2 ·
Calculate the maximum acceleration of a milk carton
- javii
- · Replies 2 ·
Angular spread of light rays passing through a prism
- Quenton Robertson
- · Replies 6 ·
Calculating Average Energy of a quantum state
- Z90E532
- · Replies 1 ·
Allowed EM Waveforms: Which Ones?
- Rahulrj
- · Replies 7 ·
Spring and Energy: Rocket clamped to an anchored spring
- Max
- · Replies 1 ·
Projectile Motion- Plane releases payload
- Catchingupquickly
- · Replies 6 ·
Calculating Angle to Shoot Sword Over Wall for UT - 65 Characters
- Superman123
- · Replies 33 ·
Velocity Vectors and Navigation Across A River
- Catchingupquickly
- · Replies 4 ·
Calculate vmax and voltage from X-ray distribution function
- VH1
- · Replies 2 ·
Find the angular acceleration of the bridge?
- general_ludd
- · Replies 1 ·
Circular Motion: Ball on String
- physicaled
- · Replies 9 ·
Direction of vector acceleration in circular motion
- Bunny-chan
- · Replies 13 ·
Plane in flight - Dynamics Question
- Ryansf98
- · Replies 6 ·
Calculating Gasoline Tank Depth and Volume
- tennisgirl92
- · Replies 8 ·
Magnitude of force of a disk on a circular track
- dodosenpai
- · Replies 6 ·
Finding the force of repulsion between two point charges
- RabbitWho
- · Replies 5 ·
Find velocity of air using Bernoulli principle
- goatz4real
- · Replies 4 ·
What is the Direction of the Field and Current in a Changing Magnetic Field?
- superslow991
- · Replies 4 ·
CIE A'level question on toppling of connected solids
- moriheru
- · Replies 7 ·
Determining equilibrium position between two springs
- heartshapedbox
- · Replies 3 ·
Why Does My RL Circuit Analysis Yield a Positive Time Constant?
- yosimba2000
- · Replies 1 ·
Expression for volume charge density of a sphere
- David23454
- · Replies 16 ·
Magnetic Fields- Finding the radius
- Studentphysics
- · Replies 3 ·
Electric field with three charges and a point
- dbuhtoia
- · Replies 1 ·
Indices of refraction when wavelengths are given
- ikihi
- · Replies 2 ·
Motion of two objects connected by a string
- songoku
- · Replies 18 ·
Electric field Pre-lab annotation
- Max
- · Replies 3 ·
Find velocity from Force graph using Work Theorem and Energy
- Max
- · Replies 5 ·
Multipole Expansion Homework: Potential in Spherical Coordinates
- grandpa2390
- · Replies 8 ·
How Does a Leather Belt Keep Baggy Jeans in Place?
- Fizzic
- · Replies 3 ·
Working with phasors (Circuits, such as complex power)
- Cocoleia
- · Replies 4 ·
Yes, that makes sense. Thank you for pointing that out.
- ztf24
- · Replies 8 ·
Simple Harmonic Oscillator behaviour when a potential term is added
- Rahulrj
- · Replies 11 ·
How Does a Combined Lens and Mirror System Create Images?
- horsedeg
- · Replies 1 ·
Weight of air on a piece of paper
- ztf24
- · Replies 2 ·
Kinematics Question: Falling object
- Catchingupquickly
- · Replies 3 ·
What is the magnitude of the electric field (rod)?
- sunnnystrong
- · Replies 4 ·
What is the magnitude & direction of the eletric field?
- sunnnystrong
- · Replies 10 ·
Temperature in a Carnot heat engine
- EightBells
- · Replies 2 ·
Which drawing represents an AC generator?
- Asmaa Mohammad
- · Replies 9 ·
Boatswans Chair pulley Question
- Ryansf98
- · Replies 14 ·
Drag force with differential equations, finding max speed
- gelfand
- · Replies 3 ·
What is the Speed of Sound in this Lab Setup?
- lightofthemoon
- · Replies 1 ·
Heat required to heat water and ice
- Elias Waranoi
- · Replies 2 ·
Circular polarization in rectangular waveguide
- cefl
- · Replies 1 ·
Help finding Normal average acceleration of path.
- whynot314
- · Replies 8 ·
Body Velocity and Position on X-Axis at a Given Moment
- mike32
- · Replies 4 ·
How long an object takes to stop - using friction, momentum
- gelfand
- · Replies 12 ·
Critically Damped System - Viscous force
- dumbdumNotSmart
- · Replies 3 ·
Gravitational forces, speeds and masses
- gelfand
- · Replies 11 ·
How do I find the amplitude of the combined signal?
- alexdr5398
- · Replies 4 ·
Why do the capacitors in this circuit have the same voltage?
- alexdr5398
- · Replies 4 ·
How Do You Calculate Acceleration at t = 1/1.1 sec from the Given Equation R(t)?
- mike32
- · Replies 6 ·
Potential of a conducting sphere in a conducting shell
- razidan
- · Replies 12 ·
How Does the Doppler Effect Explain Frequency Changes in Moving Cars?
- Elias Waranoi
- · Replies 3 ·
Driving force of a car experiment
- Fred Hill
- · Replies 12 ·
Relate rotational kinetic energy to potential energy
- lydia_y620
- · Replies 6 ·
Shell theorem: Gravity of a hollow planet
- Carbon123
- · Replies 7 ·
Why is this loop pushed downwards by the magnetic field?
- alexdr5398
- · Replies 2 ·
Simple inductance question: Finding steady state current
- alexdr5398
- · Replies 4 ·
Induced EMF graph of a very small wire moving through a coil
- FelaKuti
- · Replies 3 ·
Force on a Pulley: Understanding Tension and Tangents
- user240
- · Replies 6 ·
A neutral conducting sphere and an insulating sphere....
- alexdr5398
- · Replies 8 ·
Test the limits of Poiseuilles law
- Ron Burgundypants
- · Replies 6 ·
What happens to a coil of wire as current is increased?
- alexdr5398
- · Replies 4 ·
Dealing with two circuits connected by adjacent inductors
- D Nguyen
- · Replies 1 ·
Electricity: voltage calculation in serial
- Epoch
- · Replies 4 ·
Magnetic flux through a rectangular loop inside a wire
- D Nguyen
- · Replies 1 ·
What is the angular acceleration of an arm
- Dusty912
- · Replies 2 ·
Understanding Oscillation with Friction: Problem 130 Solution Clarifications
- Carbon123
- · Replies 3 ·
Why Does a Car Accelerate When Rolling Down a Hill?
- gelfand
- · Replies 11 ·
Doppler shift source velocity components
- undividable
- · Replies 3 ·
Car on a hill - reasoning for static friction
- gelfand
- · Replies 5 ·
How much energy does the Earth radiate to space?
- Vector1962
- · Replies 8 ·
Collision of point mass and sphere in particular fashion
- timetraveller123
- · Replies 31 ·
How to find the open circuit voltage?
- ltnghia1304
- · Replies 1 ·
Conservation of momentum, collisions - what about friction?
- gelfand
- · Replies 8 ·
Poynting's theorem in a solenoid
- matnatale
- · Replies 1 ·
Why does increasing mass also increase kinetic energy and velocity?
- aatari
- · Replies 3 ·
Switching coordinate system of a field
- 2sin54
- · Replies 5 ·
Resonance at low and high frequencies of 2 closed end tubes
- Taniaz
- · Replies 7 ·
How to Determine the Image Charges for a Dielectric Interface?
- BREAD
- · Replies 2 ·
Determine the angular frequency of the system in SHM
- richardz03
- · Replies 8 ·
Radius of curvature of trajectory
- Dusty912
- · Replies 2 ·