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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Fringe pattern of a vapour lamp
- aurao2003
- · Replies 1 ·
Vertebrate and Number of Breaths - Ideal Gases
- dvolpe
- · Replies 1 ·
Will the cylinder slide or topple on an inclined plane?
- BowlOfRed
- · Replies 1 ·
Calculating Horse Speed: Average Acceleration
- justin32089
- · Replies 1 ·
Refraction of Light: Why Frequency Stays Unchanged
- SandeshPhy
- · Replies 3 ·
Solve Angle of Refraction Problem: Incident 35°, Refracted 22° & Leaving 38°
- aurao2003
- · Replies 4 ·
What is the Zero Field Point Between Two Charged Particles on the x-axis?
- Abelard
- · Replies 5 ·
How do you calculate carrier concentration in a doped semiconductor?
- becon
- · Replies 1 ·
Mass describing an elliptical motion connected to the center by a spring
- obarquero
- · Replies 10 ·
Optics - index of refraction and phase lag
- atomqwerty
- · Replies 7 ·
Studying Emissivity Effects on a Copper Box Experiment"
- Sleve123
- · Replies 1 ·
What is the position of a falling ball given drag force and unknown velocity?
- hello337
- · Replies 3 ·
Geometric Optics- Two Questions
- _Pistolkisses
- · Replies 2 ·
How Is Acceleration Calculated in a Pinball Machine?
- smashbrohamme
- · Replies 3 ·
Snell's Law: Frequency, Velocity, Wavelength Ratios
- homevolend
- · Replies 1 ·
What are the measurements for amplitude and wavelength of a radio wave?
- baileya
- · Replies 4 ·
Projectile Motion Problem: Calculating Velocity, Distance, and Potential Energy
- Flanery
- · Replies 3 ·
Light from Element X through a diffraction Grating
- kikko
- · Replies 3 ·
Leaky capacitor and movement of charges
- Papikoss
- · Replies 4 ·
Calculating Spring Constant with Two Blocks
- toosha88
- · Replies 12 ·
Proving Noncollinearity: The Relationship Between Vectors u and v
- mattfalcon
- · Replies 1 ·
Applying conservation of momentum to pitching a baseball
- crivea24
- · Replies 1 ·
What is the electric field at x=2d?
- sona1177
- · Replies 4 ·
Finding Velocity and Angular Speed of a Rolling Cylinder
- gamer1319
- · Replies 2 ·
What Range of Frequencies Corresponds to 400-700nm Wavelengths?
- Noctix
- · Replies 1 ·
Electric Field Question Involving Springs and SHM
- uazaga
- · Replies 1 ·
Finding the Time in a SHM Problem
- darkblue
- · Replies 11 ·
How Do You Calculate the Period of a Traveling Wave?
- Noctix
- · Replies 2 ·
Trying to calculate force of a tackle
- novafc23
- · Replies 2 ·
Two particles colliding on a 1.28 m inclined plane
- flanders
- · Replies 4 ·
Air Pressure and Spring Question
- AClass
- · Replies 9 ·
Speed of sound from resonance in a water tube
- Nikitin
- · Replies 10 ·
Difference between FM and AM waves?
- armolinasf
- · Replies 4 ·
Is the Formula g=GM/r^2 Applicable Inside the Earth?
- binbagsss
- · Replies 2 ·
Electrostatic Force and Charge Transfer in a Collision between Polystyrene Balls
- craig.16
- · Replies 10 ·
Finding electric field and force from potential function V(x,y,z)=2x+xy+y²-xz²
- craig.16
- · Replies 4 ·
Resolving Vector - Get Magnitude of F2 to 3 Sig Figs
- Lancelot59
- · Replies 3 ·
Moment of inertia of a door about its hinge
- loba333
- · Replies 9 ·
Solving two equations with x and y in squared terms
- Wimpels
- · Replies 8 ·
Calculting the slope of the tangent to find Instantaneous velocity
- FatIndian
- · Replies 5 ·
Solving Upright Rod Falling Problem
- Karol
- · Replies 23 ·
Vertical Circles: mg vs Resultant Force
- binbagsss
- · Replies 3 ·
How Does Train Length Affect Speed on a Sine-Shaped Rollercoaster Track?
- Mantaray
- · Replies 5 ·
Expressing pendulum acceleration in terms of theta and its derivatives
- sporus
- · Replies 6 ·
Electromagnetism used to determine chemical mixtures?
- menco
- · Replies 1 ·
What is the trajectory of a cannonball fired from the equator in space?
- FermatPell
- · Replies 2 ·
Force needed to push and pull a hand pump with 5kg mass
- Jamie87
- · Replies 1 ·
Projectile motion and electric field strength
- mohemoto
- · Replies 3 ·
What is the coefficient of static friction between the bag and the carousel?
- SpecialOps0
- · Replies 4 ·
Day length for zero scale reading at Earth's equator
- koopa347
- · Replies 3 ·
Average translational kinetic energy of nitrogen molecule
- physics4u
- · Replies 9 ·
How to Change a Horizontal Vector to Move in a 45 degree angle
- Loppyfoot
- · Replies 6 ·
Where Does an Electron Reach Equilibrium Between Two Charges?
- Zvaigzdute
- · Replies 1 ·
Thermodynamics: Coefficient of Performance Equation for Temperature Calculation
- name_ask17
- · Replies 5 ·
Circular Orbits and weightlessness
- suwarna07
- · Replies 15 ·
Proving 1 ppm = 1 mg/L: Conflicting Equations?
- Jimmy25
- · Replies 3 ·
Calculating Tidal Reservoir Energy: Using Average vs Maximum Height
- sparkle123
- · Replies 1 ·
Finding the net force on a charge in the center of 4 other charges.
- Cmertin
- · Replies 5 ·
Why is work the same pushing an object up an incline vs lifting it vertically?
- sparkle123
- · Replies 1 ·
Archimedes Principle, Buoyant Force
- roman15
- · Replies 1 ·
Deriving Electric Field for Quadropole Configuration
- jegues
- · Replies 2 ·
Work Done and Force and Newtons Third Law of Motion
- Peter G.
- · Replies 3 ·
Projectile Motion Analysis: Golf Ball Speed, Distance, and Height
- cahp19
- · Replies 3 ·
Lower and upper limits for a volume integral
- chrisyuen
- · Replies 2 ·
Drawing refracted and total internally reflected rays
- aurao2003
- · Replies 2 ·
Finding how much a 5 cm pad compresses when an egg hits it
- MelloDramatic
- · Replies 5 ·
What are the equations to calculate friction
- ellomoto135
- · Replies 1 ·
Maximum weight for suspended cable system with capacity limits
- bsaab
- · Replies 3 ·
Finding angular acceleration of hollow sphere with hanging mass
- john562
- · Replies 1 ·
Path Independence of Entropy Change
- sigmaro
- · Replies 1 ·
Calculating Heat Generated from Capacitors
- cupid.callin
- · Replies 3 ·
Calculating Electric Field in a Square of Charges
- MasterMatt
- · Replies 3 ·
How Does an Instantaneous Transverse Blow Affect a String's Position Over Time?
- jarvinen
- · Replies 1 ·
What is the explanation for using sin 30 in 2D kinematics?
- Hemingway
- · Replies 2 ·
Basics of Friction: Learn the Fundamentals
- ellomoto135
- · Replies 1 ·
Minimum energy and five lowest energies for particle in 2D box
- hy23
- · Replies 13 ·
Why Is the Direction of Electric Force Important in Calculations?
- flyingpig
- · Replies 3 ·
Period of simple pendulum in accelerating elevator
- Jm4872
- · Replies 2 ·
What is the phase constant in SHM?
- polymerase
- · Replies 3 ·
What is the Uniform Electric Field Problem?
- jegues
- · Replies 10 ·
Finding Tension in a Rod Attached to Sliding Blocks
- Inaki kemasda
- · Replies 4 ·
Finding acceleration in spring oscillation at t = 2.30 s
- Jm4872
- · Replies 2 ·
Finding Magnitude and Direction using Component Method?
- OUmecheng
- · Replies 1 ·
What is the Acceleration with a Coefficient of Kinetic Friction of 0.2?
- jtwitty
- · Replies 4 ·
Compression of a steel column with a 100mm hole bored through
- JRYD
- · Replies 1 ·
Finding the mininum value of the coffecitent of friction
- jtwitty
- · Replies 2 ·
Is it possible for a balloon to rise up with an acceleration of 1 m/s²?
- Ockonal
- · Replies 1 ·
Heating water at constant volume and pressure
- debussie
- · Replies 2 ·
How many joules of heat will be delivered to the room
- name_ask17
- · Replies 13 ·
Surface Area and Friction in Static Friction?
- stu12345
- · Replies 7 ·
Which Material is Safer for a Swing Safety Pad?
- Bogus_Roads
- · Replies 3 ·
Heat loss through an insulated pipe
- yoghurt54
- · Replies 1 ·
How do electromagnetic waves have perpendicular electric and magnetic fields?
- nobahar
- · Replies 9 ·
Magnitudes of the largest and smallest force?
- Fittler
- · Replies 25 ·
What is the Correct Frequency of a Child's Swing Motion?
- Bogus_Roads
- · Replies 2 ·
Calculating radio station frequency given distances
- aeliand
- · Replies 1 ·
Projectile motions with different masses
- Bogus_Roads
- · Replies 1 ·
Radiation pressure vs gravity on a solar sail at 1AU
- will mick
- · Replies 16 ·
Relationship between mass of cart, mass on a pulley and resulting acceleration
- NeedsHelp1212
- · Replies 3 ·