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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Charge on two spheres related to Earthing
- songoku
- · Replies 17 ·
Finding absolute magnitude given apparent magnitude 7
- Michael c17
- · Replies 4 ·
Damped Oscillatory Motion with Varying Bump Timing for Control
- Adrian Simons
- · Replies 13 ·
Why don't the mass numbers balance in my nuclear equation?
- ayans2495
- · Replies 2 ·
Relative Humidity and Temperature Changes when adding Heat
- john ryan
- · Replies 11 ·
Would particle P be under non-unform circular motion?
- vcsharp2003
- · Replies 29 ·
Calculating F, V and C: Why Can It Not Be Obtained This Way?
- hidemi
- · Replies 4 ·
Iron block dropped into a container of water sitting on a scale
- Kate_12
- · Replies 12 ·
Q of radiating electron according to classical theory
- mbigras
- · Replies 10 ·
Work and Energy on a Slope - How Does a Block Move Up with Zero Net Work?
- JackyCheukKi
- · Replies 3 ·
Find the gravitational field strength of planet X
- ellieee
- · Replies 10 ·
Problem on Diffraction Grating and Laser Crystallography
- phantomvommand
- · Replies 10 ·
Explaining this formula in simpler terms
- hidemi
- · Replies 2 ·
Location of the particles when 1.5 periods of a sound wave have passed
- ellieee
- · Replies 3 ·
Does translation symmetry apply to an infinite charged plane sheet?
- Shreya
- · Replies 2 ·
How to find an expected value for magnetic field strength?
- jstrahan
- · Replies 1 ·
Why does angle of incidence change to near 90° in total internal reflection problem?
- 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 ·
Deriving a formula for computer science 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 ·
Conservation of momentum and kinetic energy in alpha decay of Po-216
- Elon Musk
- · Replies 1 ·
How to Find the Magnetic Field (B) in a Zeeman Effect
- Athenian
- · Replies 3 ·
How do I calculate input resistance with the formula R1(1+BA0)?
- IronaSona
- · Replies 1 ·
Is Your Calculation of Simple Harmonic Motion Accurate?
- Krokodrile
- · Replies 5 ·
Solving T(y)-T(y+dy)=ug(dy)
- 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 ·
How do I start solving this equation from the textbook?
- 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 ·
Why does AC current not charge a coil like DC does?
- hidemi
- · Replies 8 ·
Why does F = ma give nearly the same force as the spring constant method?
- 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 image in water reflected by a mirror calculation
- 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 ·
Why is work negative in adiabatic compression of oxygen gas?
- 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 ·
Why is conservation of kinetic energy false for this collision?
- hidemi
- · Replies 14 ·
Projectile motion with (constant) wind velocity
- brotherbobby
- · Replies 8 ·
Small angle pendulum period and angular frequency
- hidemi
- · Replies 2 ·
Find ##E_0## and ##k## for ##E= E_0 \sin(k r -\omega t)## using Gauss
- happyparticle
- · Replies 29 ·
Hot air balloon buoyancy at 5000 m altitude
- 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 ·
Time for current to reach 2.5A in an RL circuit
- IronaSona
- · Replies 13 ·