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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Find the length of a roll of GI steel sheet given its weight
- escape_velocity
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Applying W=F*s for variable force
- UnknownGuy
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Constraint equations in mechanics
- Kushal Chakrabarti
- · Replies 5 ·
Capacitor charge when connected to 9.0-V battery
- Alice7979
- · Replies 6 ·
Why total time taken s₁/v₁ + s₂/v₂ + s₃/v₃ in average speed?
- Indranil
- · Replies 46 ·
Simulating scintillation (twinkling)
- kylie22
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Landau Vol.1 Mechanics(3rd ed.) Ch.II §7. Momentum Problem
- jinjung
- · Replies 1 ·
Simple Pendulum undergoing harmonic oscillation
- Safder Aree
- · Replies 21 ·
Is the following decay process possible?
- says
- · Replies 9 ·
Angle between A-B and A when B is the negative of A
- Indranil
- · Replies 21 ·
Electric field from a uniformly charged wire at distance 3.2 cm
- Alice7979
- · Replies 5 ·
Buoyancy of Balls A and B in a Swimming Pool
- CynicalBiochemist
- · Replies 10 ·
Reflection coefficient in ultrasound imaging
- Taylor_1989
- · Replies 2 ·
Hysteresis loop magnetization of Gadolinium
- gony rosenman
- · Replies 5 ·
Find the maximum safe depth of a submarine
- motp44
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Why is the normal reaction force zero in the absence of any external force?
- Vatsal Goyal
- · Replies 2 ·
Capacitors: find the dielectric constant
- Alice7979
- · Replies 2 ·
Using conservation of energy vs. Newton's laws in a pulley problem
- JJ__
- · Replies 7 ·
Common velocity after truck starts pulling a car
- nikolafmf
- · Replies 2 ·
Using differentiation to find a general expression
- air79
- · Replies 2 ·
Physic (kinematics) — Displacement of an accelerating car
- Liszzy
- · Replies 7 ·
Finding box weight from sliding force and friction coefficient
- Migi Alarcon
- · Replies 3 ·
How do I calculate the potential created by a dipole
- vbrasic
- · Replies 2 ·
Finding b in Van der Waals Equation?
- DaynaClarke
- · Replies 9 ·
How Do You Calculate the Magnetic Field Near a Current-Carrying Ribbon?
- Amy Marie
- · Replies 4 ·
Calculation of Change in Magnetic Flux Linkage Across a Wire
- UnknownGuy
- · Replies 2 ·
What is the Angle Between Perpendicular Vectors?
- Indranil
- · Replies 5 ·
Momentum Kleppner Classical Mechanics Freight Car and Hopper
- MARX
- · Replies 10 ·
Find the displacement from equilibrium after some time
- Mason Smith
- · Replies 2 ·
Flow of Water in a plastic bottle
- xorisa
- · Replies 7 ·
How Does Light Intensity and Frequency Affect Photoelectron Emission?
- chef99
- · Replies 5 ·
How to find the net acceleration?
- navneet9431
- · Replies 5 ·
Assumptions made when deriving the speed of light
- Parker Mays
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Combined magnitudes of two solar-type stars
- Taylor_1989
- · Replies 6 ·
Mass suspended by bars in two configurations
- Pauleta
- · Replies 6 ·
Amplitude problem — Car shock absorbers going over a bump
- robax25
- · Replies 37 ·
A Physics 11 Elevator Work/Power Problem
- jasmine_01
- · Replies 3 ·
A Physics 11 Efficiency/Useful Energy Question
- jasmine_01
- · Replies 1 ·
Accelerating a car including the moment of inertia of the wheels
- lichenguy
- · Replies 33 ·
Solving Equal Force Chain System Dynamics
- sagarkumar
- · Replies 16 ·
General plane motion equation with angular acceleration
- jackoop
- · Replies 1 ·
FBD of an aerogenerator (Windmill)
- Andres Padilla
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What is the total length of the bungee cord in this bungee jumping problem?
- robax25
- · Replies 26 ·
Which Frequency is NOT Possible for a Vibrating String?
- Aiyan
- · Replies 5 ·
Circuit problem involving sources and resistors
- Santilopez10
- · Replies 7 ·
Compare the wavelengths of a photon and an electron
- chef99
- · Replies 2 ·
Distance the hoop travels up the incline
- vbrasic
- · Replies 3 ·
Find the rate that the distance between two projectiles is changing
- isukatphysics69
- · Replies 3 ·
Fringe Separation with a sheet of Glass
- BreadTomato
- · Replies 2 ·
Finding currents and power in a DC circuit using Kirchhoff's laws
- Santilopez10
- · Replies 12 ·
Thermodynamics, find the work done from the graph
- Alice7979
- · Replies 8 ·
Oscillations of Spring with Viscous Medium
- robax25
- · Replies 17 ·
Photoelectric effect, calculating work function
- Pochen Liu
- · Replies 4 ·
In moving out of a dormitory at the end of the semester, a s
- Alice7979
- · Replies 1 ·
A runner weighs 687 N and 71% of this weight is water. (a) H
- Alice7979
- · Replies 6 ·
Problem involving specific heat and graph
- frkCarl
- · Replies 3 ·
Quantum Dot Problem (Griffiths 7.20)
- ALime88
- · Replies 1 ·
Calculating Average Speed for a Particle Traveling at Two Different Velocities
- Indranil
- · Replies 6 ·
Ball hitting a wall with relativistic effects
- Figaro
- · Replies 10 ·
What is the distance between the Sun and the Earth?
- Indranil
- · Replies 18 ·
Motion of rolling metallic shell filled with water
- Krushnaraj Pandya
- · Replies 22 ·
Angular momentum about ICOR of a rod
- Krushnaraj Pandya
- · Replies 25 ·
Why relativistic momentum equals the following?
- Foruer
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Electric current in wire: electrons pushed by battery or by neighbors?
- TechAndrew
- · Replies 3 ·
Application of angular impulse to a problem
- Krushnaraj Pandya
- · Replies 7 ·
Can C14 Atoms Be Detected Using NMR Despite 0% Natural Abundance?
- HastiM
- · Replies 1 ·
Insect-ring system, conservation of angular momentum
- Krushnaraj Pandya
- · Replies 6 ·
How is net torque zero about hinge of rod in ball rod system
- Krushnaraj Pandya
- · Replies 7 ·
How to find the magnetic force on a current-carrying tube in a neon sign?
- SHOORY
- · Replies 10 ·
What's the speed of the ball 1 second after it was kicked?
- Melina
- · Replies 7 ·
What will be the acceleration of a 10kg block w.r.t. the ground frame?
- prakhargupta3301
- · Replies 6 ·
Was there a mistake in our final exam question about resistance?
- Eitan Levy
- · Replies 30 ·
Condition for Instantaneous Acceleration = Average Acceleration
- navneet9431
- · Replies 3 ·
Steps for converting one type of graph to the other?
- navneet9431
- · Replies 4 ·
Angular momentum of a purely rolling body
- Krushnaraj Pandya
- · Replies 13 ·
Relation between linear and angular momentum
- Krushnaraj Pandya
- · Replies 6 ·
Angular momentum of a rod about hinge
- Krushnaraj Pandya
- · Replies 3 ·
Real life problem about angular momentum conservation
- Krushnaraj Pandya
- · Replies 16 ·
How Does Lead Attenuate 0.5 MeV Photons Over 1.3 cm?
- tastytau
- · Replies 3 ·
How to Determine the Distance d for Counterclockwise Motion of a Cylinder?
- Tigers01
- · Replies 17 ·
Thermodynamics problem -- Find the mass of water that vaporizes
- Alice7979
- · Replies 6 ·
How much heat in joules must be added to 0.841 kg of aluminu
- Alice7979
- · Replies 4 ·
Power required to rotate a load of specific weight
- escape_velocity
- · Replies 13 ·
Estimate for the change in range for a proton
- tastytau
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Height to which rolling ball rises on a surface
- Krushnaraj Pandya
- · Replies 12 ·
Problem with solving for force constant k of spring?
- David Day
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Iron Ring Expansion: Solve for Δθ to Find Temp Increase
- baldbrain
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Rolling on a plank which is resting on friction less surface
- Krushnaraj Pandya
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What is the angle of incidence?
- SmugBug
- · Replies 7 ·
Combined resistance in this circuit
- Eitan Levy
- · Replies 6 ·
Force on semicircular conductor in cylindrical vs Cartesian coordinates
- pobro44
- · Replies 5 ·
Find the velocity of a rolling disk at time t
- Krushnaraj Pandya
- · Replies 18 ·
Are T and T2 the Same in Physics Equilibrium Problems?
- prakhargupta3301
- · Replies 4 ·
Is the Tension in the String Correct?
- prakhargupta3301
- · Replies 3 ·
A thin steel plate is in the shape of a half circle
- Melina
- · Replies 1 ·
Is today's exam question unsolvable? - Proton Motion in a Magnetic Field
- APUGYael
- · Replies 7 ·
Charge on a rod of infinite length
- astrolady022
- · Replies 2 ·
How Is Current Calculated in a Mass Spectrometer?
- SHOORY
- · Replies 3 ·
Moment of inertia of a leftover square
- Krushnaraj Pandya
- · Replies 6 ·
Can dx/dy always be used for integration and derivation on a circle?
- SHOORY
- · Replies 4 ·