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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Distance traveled by the object in n-th second
- niett
- · Replies 1 ·
Getting Started: Overcoming the Blank Page
- hidemi
- · Replies 9 ·
Calculate the impedance in this RC circuit
- joelkato1605
- · Replies 4 ·
Finding the Velocity of a Projectile knowing only Launch Angle and Flight Time
- flyparnape
- · Replies 21 ·
Flux Through a Gaussian Surface
- abysmith18
- · Replies 7 ·
What is the relationship between a rocket and Inverted Pendulum?
- Zenon
- · Replies 7 ·
Oscillating spring experiment uncertainty
- maxim07
- · Replies 15 ·
How Are Velocity and Angle Calculated When Crossing a River?
- Adeopapposaurus
- · Replies 3 ·
Applying D'Alembert's principle to a bead on an elliptical hoop
- Like Tony Stark
- · Replies 5 ·
Electromagnetics: find D,E,P between two parallel conducting plates
- larginal
- · Replies 1 ·
Magnetic energy inside a coaxial cable
- happyparticle
- · Replies 16 ·
2 Carts on a Track Compressed by a Spring -- What are their Velocities?
- BlueLava
- · Replies 3 ·
Calculate the charge to mass ratio in this mass spectrometer problem
- kconnolly
- · Replies 12 ·
The body slides off an inclined plane
- Adeopapposaurus
- · Replies 1 ·
Understanding the Net Force on a Snorkeler's Eardrum
- guyvsdcsniper
- · Replies 1 ·
Spring launches a block up a ramp -- How far does it go?
- jskrzypi
- · Replies 4 ·
Rocket problem -- separated fuel tank in free fall
- Adeopapposaurus
- · Replies 2 ·
Lorentz Velocity Addition Problem
- JoeyBob
- · Replies 11 ·
University Physics: Force Problem (Baseball and Pitcher)
- BlueLava
- · Replies 5 ·
Degrees of freedom of "simple bicycle"
- Like Tony Stark
- · Replies 4 ·
Friction - problem with one of the equilibrium equations
- FEAnalyst
- · Replies 13 ·
Writing an expression for work done by frictional force
- imbadatphysics212
- · Replies 8 ·
Egg tossing crime -- From what location was the egg thrown?
- Aion96
- · Replies 14 ·
Motion of box on inclined plane connected by spring to a wall
- songoku
- · Replies 76 ·
Lens with different refraction index on each side
- JoeyBob
- · Replies 7 ·
Finding Angular Velocity in Rotational Motion Problems
- momoneedsphysicshelp
- · Replies 5 ·
How to Estimate the Fermi Energy for Potassium Metal?
- Benlaww
- · Replies 1 ·
How Does the Angle Theta Affect the Velocity Calculation in String Problems?
- vcsharp2003
- · Replies 29 ·
How Do You Properly Approximate Terms in an Equation?
- hang
- · Replies 6 ·
What Current Flows in a Coil at 230V, 50Hz?
- IronaSona
- · Replies 5 ·
Conservation of momentum in an oblique launch and projectile explosion
- TheGreatDeadOne
- · Replies 4 ·
Determine the moment of inertia of a bar and disk assembly
- TheBigDig
- · Replies 3 ·
Solving Math Problem: Why is m=2, not 1?
- hidemi
- · Replies 2 ·
Falling Tower Problem: Watch How to Solve It in This Video
- ulrichgermany
- · Replies 2 ·
Explaining 2.2 x 10⁻⁶ m Range Calculation
- hidemi
- · Replies 10 ·
Jumping from a moving wagon momentum problem -- find Buffy's weight
- Jujubee37
- · Replies 2 ·
Freely hinged rods on a table - Linear velocities of CM after the impulse
- PiEpsilon
- · Replies 11 ·
Rectilineal movement of particle
- Krokodrile
- · Replies 3 ·
Phase shift between voltage and current
- IronaSona
- · Replies 3 ·
Moment of Inertia of a sphere about an axis
- phantomvommand
- · Replies 4 ·
Probability a particle is in a certain region
- etotheipi
- · Replies 8 ·
2 * 10 ^ 20 charges move in a wire when we connect a 3.7 V battery. Ho
- amizy9990
- · Replies 12 ·
A copper wire contains 3.0 *10 ^ 22 number of charges on 1 meter wire
- amizy9990
- · Replies 8 ·
Stewart-Tolman Effect (Current caused by Acceleration of wires)
- phantomvommand
- · Replies 3 ·
Graphs of s, v and a for a mass with a piece of paper attached
- AN630078
- · Replies 5 ·
Maximizing Profit in Online Business
- maxelcat
- · Replies 13 ·
Net Force Produced By Currents In Wire And Square Loop
- JennV
- · Replies 1 ·
Question on Moment of Inertia Tensor of a Rotating Rigid Body
- warhammer
- · Replies 4 ·
Young's double-slit experiment - Bright fringes occurring
- hidemi
- · Replies 2 ·
Calculating the Effects of Lens Closeness on Light Refraction
- hidemi
- · Replies 2 ·
Doppler question - find the observed frequency
- JoeyBob
- · Replies 3 ·
Integration to calculate centre of mass
- MathewsMD
- · Replies 7 ·
Confused about a Result (Circuit Analysis)
- rtareen
- · Replies 8 ·
Rolling pendulum angular acceleration
- YaniHozya
- · Replies 2 ·
Calculating distance to balance see-saw
- guyvsdcsniper
- · Replies 26 ·
How can I use the formula k=4pi^2m/T^2 to find the mass of a bolt?
- Chely
- · Replies 1 ·
How is a system in equilibrium when net force and net work are both zero?
- NoFaceJack
- · Replies 9 ·
How Long Does It Take for a Mass to Freeze or Melt?
- Mayhem
- · Replies 2 ·
Harmonic motion - Find the Mass held between two Springs
- JoeyBob
- · Replies 6 ·
Dampening force - find decrease in amplitude
- JoeyBob
- · Replies 1 ·
Determine time after which 4 persons meet in given scenario
- vcsharp2003
- · Replies 14 ·
Help me revise (basic electronic circuits questions)
- IronaSona
- · Replies 1 ·
Inferring Shape of Phasors in Multi-Slit Diffraction
- hidemi
- · Replies 3 ·
Calculating Tidal Range (Gravitation)
- phantomvommand
- · Replies 12 ·
Calculation of the field due to a dipole at an arbitrary point
- Hamiltonian
- · Replies 7 ·
Understanding Wavelengths and Fringes
- hidemi
- · Replies 2 ·
Compton Scattering - Find x component of electron momentum
- JoeyBob
- · Replies 3 ·
Experimental Analysis: Forced Harmonic Motion and Resonance
- VSKA
- · Replies 1 ·
Was the Car at Fault Speeding in the Notre-Dame Street Accident?
- 2015HuntMJ
- · Replies 8 ·
A weight is suspended from a spring and oscillates between positions A and B
- hidemi
- · Replies 11 ·
Calculating Rotation Rate from Change of Angle
- hidemi
- · Replies 3 ·
Combination of thin lens and concave mirror
- physstudent189
- · Replies 2 ·
Grade 12 Physics problem -- A small bungee cord powered catapult
- PatrikL
- · Replies 11 ·
Compton Scattering - determine momentum
- JoeyBob
- · Replies 20 ·
Intuition on Newton's Spinning Bucket
- Shreya
- · Replies 15 ·
Tension in rope for non-uniform circular motion with air resistance
- fenstera6
- · Replies 7 ·
Thermodynamics: Internal Energy, Heat and Work Problem
- AN630078
- · Replies 1 ·
Create a Phasor Diagram for Steady State Circuits
- nobodyjusttrying
- · Replies 1 ·
Why Does a Sphere Reach Terminal Velocity if Buoyant Force Exceeds Weight?
- Est120
- · Replies 2 ·
How do you read the Brewster angle formula / equation?
- ddedeasx
- · Replies 2 ·
Standing waves (graphing) homework question
- jerad908
- · Replies 9 ·
What is the energy conservation principle in a two masses and pulley problem?
- Vigorous
- · Replies 33 ·
Ohm's Law graphing inversed gradient value
- Casius
- · Replies 3 ·
The effect of temperature on phosphorescence
- Michell
- · Replies 4 ·
Finding the Magnetic Field (B_0) on a Graph [NMR]
- Athenian
- · Replies 6 ·
Finding the Relative Uncertainty for the Standard Error of the Mean
- Athenian
- · Replies 2 ·
International Physicists' Tournament 2020: Electrostatic Copier
- Peter Jones
- · Replies 1 ·
Body thrown at an angle to the horizontal
- rbh
- · Replies 5 ·
Show the number of arrangements that give an overall length of L = 2md
- Another
- · Replies 2 ·
Why is Fty positive in the Σtorque equation?
- guyvsdcsniper
- · Replies 2 ·
Why do we not need to convert from degrees Celsius to Kelvin?
- AN630078
- · Replies 20 ·
Current flow in a semiconductor circuit
- CoolDude420
- · Replies 1 ·
Confusion about the difference between isolated and non isolated systems
- eduardogallegos9
- · Replies 2 ·
Can heat flow into a body without increasing the mean kinetic energy?
- AN630078
- · Replies 1 ·
Problem with independent events in possibilities
- maria papadakh
- · Replies 16 ·
Waves - General question about Damping and how it affects a propagating wave
- jerad908
- · Replies 1 ·
Waves -- How does increasing tension affect frequency and period?
- jerad908
- · Replies 2 ·
Calculating Numerical Uncertainties in an Equation
- Athenian
- · Replies 20 ·
Motion of a particle in a magnetic field
- happyparticle
- · Replies 41 ·