Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Centrifugal and centripetal force
- Noziroh
- · Replies 1 ·
Conservation Of Kinetic Energy Problem
- FredericChopin
- · Replies 9 ·
How Are Potential Energy and Work Related in Physics?
- whitehorsey
- · Replies 10 ·
Moment of Inertia of a regular hexagonal plate?
- CrimsonFlash
- · Replies 2 ·
What is the Initial Energy of a Rolling Bowling Ball?
- freshcoast
- · Replies 10 ·
Finding the center of mass of an incomplete circle
- Jbray
- · Replies 5 ·
Motion of charge at centre of ring
- Saitama
- · Replies 12 ·
Distance between maxima of two-slit interference
- PhizKid
- · Replies 3 ·
Calculating work and KE on moving cart
- nikki101
- · Replies 1 ·
Entropy Of Mixing and Specific Heat
- Point Conception
- · Replies 17 ·
Work done down an inclined plane
- Dongorgon
- · Replies 3 ·
Finding the normal force on a particle moving in a vertical circle
- faen
- · Replies 4 ·
Series parallel combination circuit
- Alexeia
- · Replies 11 ·
Calculating Energy Released by Fission of 1g of U-235
- kingstar
- · Replies 2 ·
Charging then discharging Capacitor.
- SherlockOhms
- · Replies 21 ·
Voltage dependent Current source
- xlu2
- · Replies 5 ·
Diffraction Grating Angle Between Second Order Maxima
- Kumo
- · Replies 1 ·
Hooke's law = negative spring constant?
- scolaiw
- · Replies 5 ·
Trigonometry Practice Problems: Finding Distances and Angles
- eddievic
- · Replies 5 ·
Finding minimum friction for leaning ladder against wall
- martinlematre
- · Replies 13 ·
A bit of confusion on a simple thermodynamics problem.
- thepatient
- · Replies 6 ·
Work Done by an Insulating Sphere on a test charge
- tyler3902
- · Replies 4 ·
Setting up Forces: Finding Theta of F2
- whynot314
- · Replies 3 ·
Theory of Electric Circuit: Potential Difference and Internal Resistance
- songoku
- · Replies 9 ·
Angular Acceleration of a Rigid Bar
- reuben19
- · Replies 1 ·
What Is the Initial Decay Rate of a 1.2mg Sample of Phosphorus-32?
- MarcL
- · Replies 21 ·
Calculating Ring Capacitance: MKS Units & Math Involved
- Saitama
- · Replies 3 ·
Three identical blocks connected by ideal strings, Find Horizontal F
- khem student
- · Replies 12 ·
Projectile motion problem (find the angle) other ways?
- powerof
- · Replies 9 ·
Rolling motion- experimental data differs from expectation
- Persimmon
- · Replies 6 ·
What is the current flowing in resistor BC in a complex circuit?
- kingstar
- · Replies 7 ·
Already-charged Capacitor Voltage time function
- libelec
- · Replies 9 ·
Finding Q, W, and ΔU for three processes in a monatomic gas cycle
- PhizKid
- · Replies 3 ·
Most Generalized Lensmaker's Equation
- TaylorRiles
- · Replies 1 ·
Electric circuits problems, finding current.
- physics604
- · Replies 4 ·
M2= 6/4M1 F/M2 = F/(6/4M1) 4.8ms-1 = F/M2
- Dolan
- · Replies 13 ·
How Does Charge Distribution Affect Electric Fields in Nested Conductors?
- theunbeatable
- · Replies 10 ·
Maxwell-Boltzmann distribution for transport equations
- Denver Dang
- · Replies 2 ·
Electric circuits, finding current with terminal voltage
- physics604
- · Replies 5 ·
Coordinates of centre of mass of lamina
- diorific
- · Replies 13 ·
Electric circuit problem, finding current through a resistor
- physics604
- · Replies 2 ·
Electric circuit problem, finding internal resistance
- physics604
- · Replies 1 ·
Direction problem; find angle to shortest path with wind
- caveman127
- · Replies 2 ·
Phase velocity of EM radiation in free space
- ZedCar
- · Replies 7 ·
Converting formulas to prenex form and subgroup generation
- rafa_mota04
- · Replies 1 ·
Current in inductor used to measure EMF.
- peripatein
- · Replies 4 ·
Physics: Vectors & their scalar product
- sakau2007
- · Replies 3 ·
Physics Problem using Equations of Motion
- Scarecrow13
- · Replies 9 ·
New pressure of a gas when the volume changes at const Temperature
- mrcotton
- · Replies 2 ·
Two blocks and a massless horizontal spring question?
- nitin4422
- · Replies 16 ·
Point where magnetic field cancels between two current carrying wires.
- SherlockOhms
- · Replies 7 ·
Do Charged Objects Lose Their Charge in Air?
- ShizukaSm
- · Replies 3 ·
Charged mass connected to spring, swung in circle in mag. field
- clubguppy
- · Replies 4 ·
How Fast is the Image Moving in Optics?
- PhizKid
- · Replies 15 ·
Calculating the Flow Speed of Tea In a Tank
- Numeriprimi
- · Replies 4 ·
Statics Engineering Problem Involving Beams
- forexpipz
- · Replies 4 ·
What are some examples of when waves are useful and harmful?
- needingtoknow
- · Replies 2 ·
Question regarding Lorentz force.
- peripatein
- · Replies 8 ·
Magnetic field due to infinite plane
- Saitama
- · Replies 2 ·
Polarization of light reflected at Brewster angle
- notnewton96
- · Replies 4 ·
Modeling a mass-spring-damper system
- VitaX
- · Replies 7 ·
Finding apparent power and power factor from real and reactive power
- pokie_panda
- · Replies 1 ·
I have a tricky problem involving an electron and photon.
- gsurfer04
- · Replies 28 ·
Why Is There No Normal Force on the Second Block in Contact Systems?
- whoareyou
- · Replies 3 ·
Inductance of Solenoid on Coaxial Cable
- ArtVandelay
- · Replies 9 ·
Projectile(no height) and Displacement(Gravity)
- Evolution17
- · Replies 2 ·
Calculating average power using impedance and rms current
- pokie_panda
- · Replies 1 ·
Boat's conservation of momentum
- quark001
- · Replies 3 ·
What is the phase velocity of light in glass?
- ZedCar
- · Replies 2 ·
Polarizers in series, I got the correct answer, want to verify why
- breakingaway
- · Replies 1 ·
Calculating Relativistic Mass of Rotating Object
- Smelly Eggs
- · Replies 2 ·
Find greatest acceleration and speed
- songoku
- · Replies 11 ·
Net Power In a Charged Rotating Cylinder
- Erubus
- · Replies 9 ·
Find the voltage of an inductor in an LR circuit
- crashdirty86
- · Replies 12 ·
How Do You Calculate Angular Velocity at Maximum Height in Projectile Motion?
- Draco27
- · Replies 12 ·
Bumblebee uncertainty question
- Nathew
- · Replies 11 ·
Why is gravity taken as positive?
- whitehorsey
- · Replies 6 ·
Calculating the required motor size to move a load.
- Anasazi
- · Replies 20 ·
Date An Object Using Carbon Dating, Beta Decay
- breakingaway
- · Replies 7 ·
Tension on string of submerged object.
- SherlockOhms
- · Replies 7 ·
Finding Eccentricity of Orbit Given Masses, Positions, and Velocities
- jgoldst1
- · Replies 1 ·
Free fall acceleration concept question
- xzibition8612
- · Replies 6 ·
How Is EMF Induced in a Loop Within a Solenoid?
- kinof
- · Replies 1 ·
Deriving E = -∇ψ using Stoke's theorem and curl identity
- ZedCar
- · Replies 5 ·
Splitting vectors into Components
- ninfinity
- · Replies 1 ·
Question- Angular Simple Harmonic motion
- sankalpmittal
- · Replies 25 ·
Representing a radius vector in a Cartesian system for a simulation
- scienalc
- · Replies 12 ·
Three forces - in equilibrium or not?
- shin777
- · Replies 2 ·
Piston pressure after rotating cylinder 180 degrees
- shrrikesh
- · Replies 8 ·
How Does a Cube Fall When Balanced on Edge?
- thecommexokid
- · Replies 7 ·
Four Protons Are Fused Into An Alpha Particle, Energy Released
- breakingaway
- · Replies 5 ·
Combining Momentum with Friction
- student34
- · Replies 7 ·
Entropy For Irrevesible Process
- Point Conception
- · Replies 9 ·
Finding the Distance for a Zero Electric Field at a Corner of a Square
- thercias
- · Replies 6 ·
Sign conventions in force equilibrium with tension components
- s3a
- · Replies 5 ·
Angular Velocity w/2 welded disks
- CollegeStudent
- · Replies 1 ·
Phase Difference of a light wave
- Erubus
- · Replies 4 ·
What is the equation for calculating molecular flux for a gas?
- Erubus
- · Replies 4 ·
Circuit analysis is this correct?
- Questions999
- · Replies 2 ·