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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How to find an expected value for magnetic field strength?
- jstrahan
- · Replies 1 ·
Angle of incidence and total internal reflection
- ellieee
- · Replies 3 ·
What is the scale of lengths on diagrams for a ripple tank?
- ellieee
- · Replies 3 ·
Calculate the voltage across a resistor using Thevenin's Theorem
- Andrei0408
- · Replies 4 ·
Solving Unusual Problems: Using the Polytropic Ideal Gas Equation
- mulgerizze
- · Replies 5 ·
What is the maximum electric field magnitude between the cylinders?
- hidemi
- · Replies 12 ·
What is the Relationship Between Work and Friction?
- ellieee
- · Replies 8 ·
How to Find the "Net Change Ring Area Ratio" for the Zeeman Effect
- Athenian
- · Replies 30 ·
Solving Part B of e=1500*18/(1.3x10^11 x 0.000452389)
- calculator20
- · Replies 2 ·
Oscillations in an LC circuit (Question from Irodov)
- Anubhav
- · Replies 7 ·
How Does the Magnetic Field Relate to Frequency in Electromagnetic Waves?
- hidemi
- · Replies 15 ·
Is the Induced Electric Field Proportional to Radius in a Cylindrical Region?
- hidemi
- · Replies 4 ·
Induced EMF in a small square loop of wire at center of an AC Circuit
- bw519
- · Replies 2 ·
Analytical question: circular rotation
- SAMAHIR
- · Replies 1 ·
Earth's rotation slows down slightly over time -- How much energy is lost?
- robax25
- · Replies 15 ·
How to find the voltage threshold at which diode switches states?
- Andrei0408
- · Replies 4 ·
Find electric field intensity/density with given potential difference
- vboyn12
- · Replies 13 ·
Mixing Newton's law with Adiabatic Process
- TonyCross
- · Replies 11 ·
Find the net outward flux through the surface and the charge density
- vboyn12
- · Replies 13 ·
Help Needed: Deriving Formula for Computer Undergrad's Final Project
- alya
- · Replies 1 ·
How would one estimate the rotation period of a star from its spectrum
- SJay16
- · Replies 1 ·
Determine Joule-Kelvin coefficient for gas given equations of state
- Like Tony Stark
- · Replies 3 ·
Calculating Properties with ##S##, ##V##, and ##N##
- Like Tony Stark
- · Replies 5 ·
Problem with units? (trying to solve a normalized function)
- Labboi
- · Replies 9 ·
Two Stage Amplifier -- Find the Input Resistance
- IronaSona
- · Replies 1 ·
Derive the period of a Ball rolling in a Bowl
- phantomvommand
- · Replies 28 ·
Dimension of Eigenspace of A and A^T
- potassium_mn04
- · Replies 1 ·
Why Can't Current Flow Between Two Same Voltage Nodes?
- phantomvommand
- · Replies 10 ·
Analyzing an Angular Impulse Problem
- PiEpsilon
- · Replies 12 ·
Induction in electrostatic equilibrium conductor
- A13235378
- · Replies 1 ·
How Does Increasing Frequency Affect Current, Voltage, and Impedance (Z)?
- hidemi
- · Replies 4 ·
How to get gravitational force on a gaseous particle?
- vcsharp2003
- · Replies 28 ·
Nuclear Physics help please (alpha decay of a Po-216 atom)
- Elon Musk
- · Replies 1 ·
How to Find the Magnetic Field (B) in a Zeeman Effect
- Athenian
- · Replies 3 ·
Calculate Input Resistance: Formula & Tips
- IronaSona
- · Replies 1 ·
Is Your Calculation of Simple Harmonic Motion Accurate?
- Krokodrile
- · Replies 5 ·
Solve T(y)-T(y+dy)=ug(dy) | Easier Method?
- jayjackson
- · Replies 3 ·
Is the magnetic flux density B constant?
- J Silva
- · Replies 6 ·
Compare the shadows cast by a pole in the river and a pole on the shore
- hidemi
- · Replies 3 ·
Why do particles in a falling coach get closer together?
- Ashshahril
- · Replies 1 ·
Deriving a formula for Kinetic Energy
- Vince716
- · Replies 3 ·
Dynamics motion problem with a disk in contact with a bar
- Uchida
- · Replies 11 ·
Ampere's Law for a toroid (finding relative permeability of iron)
- phantomvommand
- · Replies 12 ·
To find the center of gravity of a particular quadrilateral
- gnits
- · Replies 12 ·
Unraveling the Enigma: Understanding the Equation
- hidemi
- · Replies 2 ·
Rate of energy dissipated by a power transmission line
- hidemi
- · Replies 3 ·
The Direction and magnitude of current in the inductor
- hidemi
- · Replies 2 ·
Determining the torque and angular momentum of a bullet due to gravity
- texan14
- · Replies 2 ·
The maximum efficiency of two continuous processes
- Peter Jones
- · Replies 1 ·
Solving an Electrical Problem: Why is the Answer Not 2s?
- john merrick
- · Replies 2 ·
How to solve mass-spring system when affected by torque in a pulley?
- bolzano95
- · Replies 7 ·
LC circuit -- Calculate the work done
- RingNebula57
- · Replies 5 ·
Do All Images with Applied Current Show the Normal Zeeman Effect?
- Athenian
- · Replies 2 ·
To find induced charges on the edges of a right pyramid
- Amitkumarr
- · Replies 5 ·
Comparing DC to AC: Is A Always Correct?
- hidemi
- · Replies 8 ·
Verifying Force Calculation Methods: 1/2 mv^2 vs. m*a
- hidemi
- · Replies 11 ·
How to calculate initial pressure and temperature - adiabatic process
- JoeyBob
- · Replies 7 ·
Does the derivative of a P(V) eqn give the eqn for change in Pressure?
- JoeyBob
- · Replies 4 ·
Thermodynamics problem (ideal gas law, kinetic theory, processes, etc.)
- phantomvommand
- · Replies 18 ·
Where Did I Go Wrong in Calculating Net Current Through a Circle?
- hidemi
- · Replies 6 ·
Is My Thinking Reasonable: A's Impact on Oscillator Motion
- hidemi
- · Replies 3 ·
Fish Reflection: Analyzing Light's Interactions with Water
- JoeyBob
- · Replies 11 ·
Work Done by Elevator Cable in Sample Problem 7-6
- Soyuz42
- · Replies 2 ·
Terminal angular velocity of Disc in magnetic field
- Advay
- · Replies 1 ·
Solving Part e of the Electron Beam Problem
- phantomvommand
- · Replies 3 ·
Supporting a trapezoid between two wedges
- Tom Hammer
- · Replies 5 ·
What Factors Influence the Minimum Acceleration in Physics?
- hidemi
- · Replies 2 ·
Calculating Volume & Work: V1, V2, W
- miekier
- · Replies 4 ·
Calculating Magnitude Difference: Is it Right?
- ChrisWM
- · Replies 2 ·
How to determine angular velocity about a certain axis?
- vcsharp2003
- · Replies 10 ·
Calculate change in entropy per minute.
- JoeyBob
- · Replies 4 ·
Find potential energy using time-independent Schrodinger's equation
- eloiseh
- · Replies 2 ·
Elastic collision of particle and rotating disc
- PiEpsilon
- · Replies 7 ·
Solving Destructive Interference: Angle vs Wavelength
- JoeyBob
- · Replies 2 ·
Confirming Conservation of Kinetic Energy: An Explanation
- hidemi
- · Replies 14 ·
Projectile motion with (constant) wind velocity
- brotherbobby
- · Replies 8 ·
Should the Answer Be B? | Reasoning Explained
- hidemi
- · Replies 2 ·
Find ##E_0## and ##k## for ##E= E_0 \sin(k r -\omega t)## using Gauss
- happyparticle
- · Replies 29 ·
Calculating Hot Air Balloon Volume & Lift
- Desperate
- · Replies 1 ·
Angular Frequency of a two-object system
- hidemi
- · Replies 6 ·
Calculate the block mass in an equilibrium system with two supports
- hidemi
- · Replies 4 ·
How do I find average kinetic energy if I don't have mass of the gas?
- Domuks
- · Replies 2 ·
What are the forces exerted by a wall on a hinged rod?
- bolzano95
- · Replies 12 ·
Inversely proportional or a linear relationship?
- maxim07
- · Replies 8 ·
Find the time required for the current to grow to 2.5A....
- IronaSona
- · Replies 13 ·
What is the intersection point of two objects on a position vs time graph?
- nmnna
- · Replies 10 ·
To find the tipping point of a lamina
- gnits
- · Replies 2 ·
How to solve a differential equation for a mass-spring oscillator?
- bolzano95
- · Replies 2 ·
Electric flux through a square lamina
- Hamiltonian
- · Replies 4 ·
Solving the wave equation for standing wave normal modes
- baseballfan_ny
- · Replies 11 ·
Find electric field separating two charged masses suspended on strings
- jay_chay22
- · Replies 6 ·
Deriving length contraction using spacetime
- Kaguro
- · Replies 13 ·
Time period of 2 disks connected by a spring
- Vivek33010
- · Replies 5 ·
Finding Magnetic Field of a Toroid with Two Circuits
- happyparticle
- · Replies 15 ·
Ideal Vs Real Mass Pulley system
- vcsharp2003
- · Replies 10 ·
What is the angular frequency of oscillation?
- hidemi
- · Replies 6 ·
Partial derivatives of enthelpy and Maxwell relations
- Like Tony Stark
- · Replies 2 ·
Moments question -- Two workers moving a scaffolding
- Rumplestiltskin
- · Replies 10 ·
Finding (C): Halfway Between Equilibrium and End Point
- hidemi
- · Replies 4 ·
To find the centre of gravity of a lamina
- gnits
- · Replies 2 ·