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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Heating a steel plate with a hole in it
- Nikitin
- · Replies 7 ·
The Magnitude of Induced EMF in a Moving Rod?
- DottZakapa
- · Replies 8 ·
Hole in an aluminium plate and that plate is heated
- Inderjeet Singh1208
- · Replies 2 ·
Solving Toppling Hemisphere Problem with Momentum & Angular Momentum
- {???}
- · Replies 19 ·
Determining Resistance of a Copper Wire Without Knowing Its Resistivity
- Archimedess
- · Replies 4 ·
Waves in round trip through a thin film and phase difference
- DottZakapa
- · Replies 1 ·
Is the balance of forces equation correct for a tube immersed in alcohol?
- ValeForce46
- · Replies 8 ·
Intrinsic coordinates kinematics problem
- Santilopez10
- · Replies 5 ·
Tension and speed of bowling ball pendulum passing the equilibrium position
- snormanlol
- · Replies 2 ·
Relationship of a planet's mass, size, and acceleration due to gravity
- yoosnb
- · Replies 4 ·
Tension in a String: Solve for Unknown Lengths - 98.6N
- snormanlol
- · Replies 5 ·
How Do I find Force when only Distance and Mass are given?
- Kaitlynn Robicheaux
- · Replies 1 ·
How Does the Volume of a Block Affect Its Buoyant Force?
- NicholasJ
- · Replies 2 ·
Elevator Question: Calculating displacement from weighing scale readings
- jisbon
- · Replies 2 ·
Comparing current densities in wires with different radius and conductivity
- DottZakapa
- · Replies 6 ·
Bernoulli equation and negative pressure
- sinasahand
- · Replies 3 ·
Fringe spacing of the Interference pattern due to two Coherent waves
- Baibhab Bose
- · Replies 1 ·
Electromagnetic waves radiating away from a transmitting tower
- DottZakapa
- · Replies 3 ·
How to find the frequency of the second wave?
- nineteen
- · Replies 7 ·
Impulse and force from a hinge
- Prabs3257
- · Replies 4 ·
The distance where the magnetic field of two wires is zero
- DottZakapa
- · Replies 2 ·
How Does Radar Track a Plane's Motion in Different Coordinate Systems?
- Santilopez10
- · Replies 7 ·
Proving limits of electric fields on infinite planes
- Cactus
- · Replies 3 ·
Is the Electric Field Calculation Consistent with the Potential Result?
- Cactus
- · Replies 4 ·
Pulley problem with 2 masses and an incline
- lilmulla
- · Replies 6 ·
Chain Hangs Over a Pulley and Starts Moving
- Gundyam
- · Replies 33 ·
Why is the acceleration not equal to mg sin(theta) in pure rolling motion?
- Prabs3257
- · Replies 2 ·
Is this equation correct for a rotating pendulum?
- Prabs3257
- · Replies 2 ·
Mutual inductance of a long wire and a triangular loop?
- TheSodesa
- · Replies 2 ·
Deriving an Expression for an Electric Field along the Z axis
- Cactus
- · Replies 2 ·
Understanding Induced Charges in an External Field
- harsh22902
- · Replies 7 ·
Project Motion/Trigonometry Question
- MrDickinson
- · Replies 9 ·
Voltage received by each bulb in a circuit
- cormzy
- · Replies 4 ·
Relative velocity of a ball thrown inside a moving truck
- jisbon
- · Replies 19 ·
Inserting a dielectric material between two plates of a capacitor
- idor
- · Replies 3 ·
Strategy for drawing equipotentials
- etotheipi
- · Replies 1 ·
How Does the Euler-Lagrange Equation Apply to Parametric Solutions?
- Another
- · Replies 2 ·
Is the Origin for a Sawhorse at C or -D/2?
- sjogosk
- · Replies 2 ·
How to Derive Time Taken in Projectile Motion?
- jisbon
- · Replies 28 ·
Astrophysics: Calculating the circumference of an ellipse
- Andy1200
- · Replies 3 ·
Radius of disk suspended on its edge
- songoku
- · Replies 3 ·
Changing the Air Temperature with a hair dryer
- spsch
- · Replies 24 ·
Spinning a bucket of water in a vertical circle - Inertia
- candypie90
- · Replies 2 ·
Thermal Expansion in Liquids and Steel
- kgm01
- · Replies 3 ·
Calculating theta from alpha: Tan(theta)=Cot(alpha)
- Shivam
- · Replies 3 ·
Question Regarding Parallel Plate Capacitor Network
- jezza10181
- · Replies 10 ·
Relative velocity of two gravitationally attracting spheres
- etotheipi
- · Replies 17 ·
Volume and length expansion with beta and alpha
- kgm01
- · Replies 2 ·
Total Particle Energy Flux in Auroral Arcs
- DaynaClarke
- · Replies 3 ·
Physics - Spinning a bucket of water in a vertical circle
- candypie90
- · Replies 5 ·
Thrust of a large ship's propeller accelerating the ship
- jisbon
- · Replies 26 ·
Why Does the Rotational Energy Formula Give Different Results for E(2+)?
- JD_PM
- · Replies 1 ·
Definitions of ray, particle and photon in atomic physics
- geoelectronics
- · Replies 1 ·
A string attached to a fixed wall and a mass on a spring
- Old-Alien
- · Replies 10 ·
Electric Field due a charged disk
- Yalanhar
- · Replies 2 ·
Velocity of the center of mass in constrained motion
- Prabs3257
- · Replies 8 ·
Calculate the electric field due to a line of charge of finite length
- Yalanhar
- · Replies 6 ·
Calc Forces on Pulleys: 200N, 300N Masses, No Friction
- Est120
- · Replies 1 ·
Consequences of a fourth neutrino type
- szcsongor
- · Replies 5 ·
How Much Water Can a 1KW Carnot Engine Freeze in 5 Minutes?
- zilex191
- · Replies 3 ·
Joule heating effect - qualitative explanation
- dwd40physics
- · Replies 8 ·
Kinetic coefficient of friction greater than the static coefficient?
- Manasan3010
- · Replies 13 ·
Calculating Momentum and Energy Conservation in Elastic Collisions
- Shivam
- · Replies 3 ·
Two balls of mass 4kg and 2 kg are moving in 1-D, answer the following
- Shivam
- · Replies 2 ·
The motion of 2 objects in contact
- PhysicS FAN
- · Replies 2 ·
Circular motion -- Find the angular velocity at t=3
- jisbon
- · Replies 4 ·
Magnetic poles and field problems
- CAT 2
- · Replies 19 ·
Calculating Density Using Upthrust and Drag Force in Water
- jisbon
- · Replies 4 ·
Is answer 5 correct for the acceleration graph problem?
- Manasan3010
- · Replies 11 ·
Can You Solve This Capacitor Circuit Problem Using Q=CV?
- EDCJZ
- · Replies 1 ·
Finding the Position(s) of Particle Oscillation
- Ajay N
- · Replies 32 ·
Can we find the frequency of a rod pendulum by just using F=ma?
- Homgkung
- · Replies 7 ·
Mechanical advantage of a pulley system
- EasyPeasy
- · Replies 2 ·
Implications of mass energy not being conserved for ##\beta^+## decay
- JD_PM
- · Replies 5 ·
Electric Field from its Potential of a Half Circle along its Z axis
- AndresPB
- · Replies 2 ·
What mistake did I make when solving for the equilibrium of a rigid object?
- agusb1
- · Replies 2 ·
Trying to get equivalent resistance of a circuit
- AmirWG
- · Replies 3 ·
EMF induced in a rotating rod having mass
- Physics lover
- · Replies 6 ·
Why can't fluids sustain tangential forces or shearing stress?
- Rishabh Narula
- · Replies 3 ·
Faraday's Law - Balloon Problem
- rofldude188
- · Replies 4 ·
Instantaneous versus average velocity?
- DeltaForce
- · Replies 3 ·
Probability of hitting a rotating disc
- Moara
- · Replies 9 ·
Will Two Ships Collide Based on Different Methods?
- brotherbobby
- · Replies 6 ·
Linear momentum or Angular Rotation
- Manasan3010
- · Replies 5 ·
Amount of magnetic energy stored in a cylinder
- Physics lover
- · Replies 6 ·
Capacitor Problem with distance-dependent dieletric
- rofldude188
- · Replies 2 ·
Block on plate with time-dependent applied force
- jisbon
- · Replies 45 ·
Velocity ratio from energy conservation equation
- Manasan3010
- · Replies 1 ·
How is the Biot Savart law derived?
- jdou86
- · Replies 2 ·
Magnetic susceptibility and relative permeability
- Marwa
- · Replies 9 ·
Set up the differential equation showing the voltage V(t) for this RC circuit
- spsch
- · Replies 19 ·
Circuit analysis: Six resistors and two batteries
- littlejay21
- · Replies 1 ·
Find the Electric Field E using Gauss' Law
- Nicci
- · Replies 3 ·
Finding the horizontal force component when pulling a baby buggy at 40°
- Jeff97
- · Replies 30 ·
What forces are acting on an object during a bounce?
- Jeff97
- · Replies 5 ·
Newton's Second Law — Net Force problem
- adams_695
- · Replies 14 ·
Why is velocity positive in one graph and negative in another?
- Paul_dirac
- · Replies 3 ·
Final temperature of an adiabatic process between two reservoirs
- Baibhab Bose
- · Replies 25 ·
Why can we ignore certain circuit paths?
- xAly
- · Replies 9 ·
How to interpret magnetic field diagrams?
- Dan13
- · Replies 4 ·