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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Transfer characteristics of a diode circuit
- Bling Fizikst
- · Replies 10 ·
Dimension Analysis -Turkey Cooking
- S-Ragnork1729
- · Replies 12 ·
Finding oscillation of SHM of this rod, mass and spring
- aftersloth2139
- · Replies 11 ·
Upside Down Paper-Glass Water Experiment
- S-Ragnork1729
- · Replies 3 ·
How to read spacetime (Minkowski) diagram for proper length
- techsingularity2042
- · Replies 7 ·
Velocity required to escape the solar system
- theblazierbroom
- · Replies 15 ·
How do you calculate the margin of error in Physics?
- daiyleena
- · Replies 10 ·
Energy equation for SHM after collision
- gage123
- · Replies 3 ·
Gauss' Law for Non-Uniform electric fields
- Dev
- · Replies 17 ·
If closed integral of E.dS is zero over a surface, then...?
- Dev
- · Replies 14 ·
Does Gauss' law describe a cause-and-effect relationship?
- Zayan
- · Replies 22 ·
No Electric Charges if No Electric Field in Region
- putongren
- · Replies 22 ·
Least Square Method to fit a line to a set of datapoints
- MatinSAR
- · Replies 11 ·
How to Calculate Center of Pressure (hf) for a Tank?
- knoxox_
- · Replies 1 ·
Maximum electric field from a blob
- Rob2024
- · Replies 7 ·
Maximum tension in thread connecting loads
- Bling Fizikst
- · Replies 13 ·
What frequency will the bat hear?
- Lotto
- · Replies 15 ·
Work done by gravity on a hanging chain?
- Manish_529
- · Replies 22 ·
Tension in a supporting thread after a second supporting thread is cut
- Bling Fizikst
- · Replies 16 ·
Entropy Change Confusion
- laser1
- · Replies 7 ·
Hot air balloon question with bouyancy
- Fadel_K
- · Replies 5 ·
Pulley Problem on an Inclined Surface Using Energy Methods
- Tygra
- · Replies 16 ·
What is the tension in a charged ring?
- etotheipi
- · Replies 103 ·
Pseudo Forces on a Mass in a Groove on a Rotating Disc
- Manish_529
- · Replies 5 ·
Vertical Wall approaching Man - Impulse and Momentum Conservation
- Null_Void
- · Replies 10 ·
How to calculate the moment of inertia of a rectangular cuboid?
- Lotto
- · Replies 5 ·
Potential energy of an electrostatic system in equilibrium
- Rob2024
- · Replies 14 ·
Electric field in three concentric spheres with Gauss' law
- JoeyGoh
- · Replies 7 ·
Ball bouncing off wall: can momentum magnitude change?
- jeff einstein
- · Replies 13 ·
Find the work done by a spring using potential energy considerations
- good jelly
- · Replies 4 ·
Relationship between pressure and temperature for liquids
- sss1
- · Replies 17 ·
Archived Displacement and Momentum, particle in cathode ray tube with variables
- physics1311
- · Replies 3 ·
Bubble rise velocity in fluids or light clock simulation for IB extended essay
- mmmmmmmm
- · Replies 2 ·
Calculating Oscillation Period and Spring Energy in a Three-Mass System
- lenna_kay
- · Replies 4 ·
Electric Field of a Toroid carrying a changing current I = kt on axis
- PhDeezNutz
- · Replies 2 ·
Finding force needed to support 5 kg mass with pulley system
- david3305
- · Replies 5 ·
Signs in torque - different analyses using different sign notations?
- mancity
- · Replies 11 ·
Why is the slope steeper in the given diagram?
- NTesla
- · Replies 8 ·
Are the 2nd and 3rd problems in this video correctly solved? (charged dipole and organ pipe problems)
- WMDhamnekar
- · Replies 3 ·
Mirror placed horizontally between two half convex lenses
- Null_Void
- · Replies 11 ·
Billiard Ball, Conservation of Angular Momentum, Force below CM point
- mancity
- · Replies 6 ·
Moving metal bar between vertical resistors with induced EMF
- PhDeezNutz
- · Replies 7 ·
What average power does the boy need to produce?
- chwala
- · Replies 12 ·
Projectile motion of two balls off a cliff
- tellmesomething
- · Replies 4 ·
Focussing a collimated beam using a diffraction grating
- kekpillangok
- · Replies 1 ·
Finding maximum stretch of a vertical spring using energy conservation
- stunner5000pt
- · Replies 6 ·
Lens Maker's Formula - Confusion in the derivation
- Null_Void
- · Replies 15 ·
Energy of particle in simple harmonic motion
- Brian_D
- · Replies 13 ·
An ornament for a courtyard at a World's Fair is to be made up of four large metal spheres
- netnomad
- · Replies 7 ·
Springs and Pulleys - Force analysis
- Null_Void
- · Replies 18 ·
Confusion Calculating Young's Modulus
- AndrewsRT_16
- · Replies 5 ·
Looking at the color vs line spectrum
- nally
- · Replies 2 ·
How can I calculate the uncertainty of the mean with Gaussian error propagation?
- ida10
- · Replies 15 ·
How to show 400 neutrinos are present?
- hraghav
- · Replies 2 ·
Change in apparent magnitude of a star after exploding
- MatinSAR
- · Replies 3 ·
How do I correctly analyze the mass balance of a tractor seat?
- Sunwoo Bae
- · Replies 3 ·
Just looking for confirmation for a torque calculation
- pete94857
- · Replies 60 ·
I solved few questions on kinematics -- Is my working correct?
- Aichuk
- · Replies 10 ·
Tension Question for Ship Container and Wind Gust
- physicsengineering72
- · Replies 12 ·
Pressure and temperature phase diagrams
- laser1
- · Replies 6 ·
Solving for Work Done When Accelerating a Mass
- Jay529
- · Replies 3 ·
Rod pivoted on compressed spring: finding CM speed and spring constant
- neel400
- · Replies 4 ·
Rutherford experiment: which conclusion cannot be drawn?
- songoku
- · Replies 12 ·
Equilibrium problem: Multiple forces acting on this hinged, supported beam
- Racoon5
- · Replies 3 ·
Freefall chord through the Earth -- calculus proof
- achap01
- · Replies 41 ·
Find the coefficient of stiffness of this spring (with non-negligible mass)
- Eshka
- · Replies 9 ·
Friction of a sliding mass on a slope
- raspberrypienjoyer
- · Replies 4 ·
Is it possible to measure SQRT(2) kg with a scale?
- littlemathquark
- · Replies 8 ·
Trying to understand the relationships between Forces, Mass and Inertia
- ida10
- · Replies 10 ·
What would the voltmeters measure?
- JACKR
- · Replies 7 ·
Siren frequency heard by observer when an ambulance passes
- songoku
- · Replies 26 ·
How to solve this kind of problem? (Mechanics Theory)
- nightsailor833
- · Replies 16 ·
Energy in simple harmonic motion--car problem
- Brian_D
- · Replies 4 ·
Why am I calculating the unknown mass of ice incorrectly?
- gabe99
- · Replies 22 ·
Why don't photons re-emitted in all directions restore absorption lines?
- songoku
- · Replies 21 ·
Why do mixed paint colors subtract wavelengths while light sources add them?
- zenterix
- · Replies 16 ·
Newton's 3rd Law of Motion: Is the Punching Bag punching back?
- paulb203
- · Replies 4 ·
Why does the valve stem period not match the simple pendulum formula?
- Brian_D
- · Replies 17 ·
Pressure versus stress in uniformly charged sphere
- Rob2024
- · Replies 11 ·
Why does a diode's I-V curve shift by 0.7V?
- Bling Fizikst
- · Replies 7 ·
Finding velocity at perigee using angular momentum conservation
- I_Try_Math
- · Replies 8 ·
Circuit with time varying current
- MatinSAR
- · Replies 10 ·
Determining the Change in Bulb Brightness by Changing Circuit
- NCanine_1932
- · Replies 6 ·
What does the middle of a chain on a pulley mean?
- misu
- · Replies 9 ·
Why does the dog's motion give two positive times?
- abdol83
- · Replies 13 ·
Two bars connected by a spring on a floor with friction
- Null_Void
- · Replies 37 ·
The derivative of the dot product "distributes" over each vector
- brotherbobby
- · Replies 5 ·
Calculating the sum of displacement vectors
- student120
- · Replies 5 ·
Bullet colliding with wood block - too many unknowns
- Platon7
- · Replies 28 ·
Force on a point charge near a uniformly charged rod
- athenad07
- · Replies 3 ·
Two rods with fixed angle, find the velocity of the crossing point
- mancity
- · Replies 1 ·
Stumped on mathematical proof
- laser1
- · Replies 13 ·
A 50 cubic foot tank contains saturated 134a at 100F and a quality of 50%
- joejoe121
- · Replies 11 ·
How can "work" done by a force be negative?
- Manish_529
- · Replies 19 ·
Torque that a grounded infinite sheet exerts on a dipole
- PhDeezNutz
- · Replies 11 ·
Two tanks are connected by a valve and line
- joejoe121
- · Replies 4 ·
Spring launcher firing steel balls
- carmenmaki
- · Replies 2 ·
Circular motion question: Mass on a rod rotating in a vertical circle
- yusungmagic
- · Replies 4 ·
Finding motor force and torque lifting a 10,000 kg load
- gawlicbread
- · Replies 9 ·
Bead on a rod which is being pulled by an ideal string with velocity v
- Null_Void
- · Replies 27 ·