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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Finding final temperature of cherry pie from heat and entropy increase
- suchjoe
- · Replies 8 ·
Heat transfer from cooling lava
- suchjoe
- · Replies 4 ·
How many argon molecules have velocities between 250 m/s and 500 m/s?
- baubletop
- · Replies 2 ·
Mechanical Energy:Potential, kinect, etc.
- Patolord
- · Replies 4 ·
Spring potential energy comparison
- tourniquet63
- · Replies 5 ·
Rotational Dynamics Problem - Rod slipping against Block
- Tanya Sharma
- · Replies 35 ·
Which way does the tanker truck move on frictionless surface?
- Kimia
- · Replies 4 ·
Advanced Project - Wheatstone Bridge for TCR measurements
- Pleonut
- · Replies 2 ·
How Does Friction Influence Motion on an Incline?
- pumpernickel
- · Replies 1 ·
How to determine streamlines for two-dimensional steady flow of a fluid?
- hvthvt
- · Replies 24 ·
Uranium isotopes percentage 4.5 billion years ago
- HaiderAbbas
- · Replies 1 ·
Question regarding thermodynamics
- utkarshakash
- · Replies 16 ·
How many rechargeable batteries to boil 100 ml of water?
- Inventor2014
- · Replies 8 ·
Circular current Loop I don't understand
- Genericcoder
- · Replies 1 ·
Solve Inductance Problem: 0.45 H, 120 V, 60 Hz
- dwn
- · Replies 5 ·
Internal energy of oxygen gas with constant pressure compression
- dropgigawatt
- · Replies 8 ·
Velocity at any point on a rotating sphere
- Maxarthur
- · Replies 1 ·
How Do You Calculate the Specific Heat Capacity of an Unknown Substance?
- physicsnerd7
- · Replies 1 ·
Simple harmonic motion of two solid cylinders attached to a spring
- dzidziaud
- · Replies 15 ·
Calculating Energy Transfer in an Inductor Circuit
- dwn
- · Replies 1 ·
How Do You Calculate Complex Impedance in AC Circuits?
- scorpius1782
- · Replies 5 ·
Finding tension in two ropes holding a 5 kg mass
- Speedking96
- · Replies 15 ·
How Is Stress Calculated in a Bar Using Transposed Formulas?
- anthonyk2013
- · Replies 3 ·
[Fluid Mechanics] How is the pressure at 2 different heights the same?
- PhyIsOhSoHard
- · Replies 5 ·
Conservation of Energy with Rotation
- NATURE.M
- · Replies 4 ·
Finding net force, acceleration and speed.
- amable
- · Replies 1 ·
Center of Mass Velocity of rotating object
- qqchan
- · Replies 5 ·
Man in bosun's chair: why is tension 2T in the pulley equation?
- goddard
- · Replies 1 ·
Basic physics question - alpha particle moving through B-field
- Genericcoder
- · Replies 1 ·
Verifying Electric Field Approximation of a Capacitor
- rmfw
- · Replies 7 ·
Angular acceleration, rigid body
- usn7564
- · Replies 2 ·
Potential generated by an ionized plasma between two plates
- MeMoses
- · Replies 3 ·
What Is the Rate of Change of Current in an RL Circuit?
- dwn
- · Replies 6 ·
Minimum film thickness for strong reflection at 610 nm
- astru025
- · Replies 1 ·
Find x: Solving a Spring Stretch Problem
- elunicornhunte
- · Replies 3 ·
Special Relativity: Conservation of Energy + Momentum?
- mintsnapple
- · Replies 4 ·
Physical pendulum thin rods problem
- dzidziaud
- · Replies 6 ·
Conservation of momentum mine car problem
- genevievelily
- · Replies 3 ·
How long does it take for this bucket to empty?
- LiamG_G
- · Replies 4 ·
Theoretical expression for relationship between height and force
- thakshi
- · Replies 33 ·
Modern Physics - velocity of electron accelerated through 6 Mev
- shivam01anand
- · Replies 8 ·
Velocity of a freely falling object
- ashleyFGCU
- · Replies 6 ·
Velocity and displacement *sigh* Isimple but seems comple
- Lexadis
- · Replies 1 ·
Boat acceleration and velocity kinematics problem
- dark4santa
- · Replies 3 ·
Kinetic friction and acceleration
- pumpernickel
- · Replies 3 ·
Internal resistance seen by the voltage source, Vx?
- Kratos321
- · Replies 1 ·
Bullet embeds in spring-block system: finding period and amplitude
- nickb145
- · Replies 13 ·
Problem doing glass slab refraction based questions
- shivam01anand
- · Replies 1 ·
Moment of inertia lab graph reading assistance
- azhdrake
- · Replies 6 ·
Understanding Amplitude and Function Type for Complex Waves
- sapz
- · Replies 9 ·
Why does galvanometer current depend on contact position in potentiometer?
- cheah10
- · Replies 7 ·
Is Reaction A Exothermic in Synthesis of Water?
- Qube
- · Replies 8 ·
Why does silly putty bounce but play doh doesn't?
- 4nnie
- · Replies 4 ·
How Does Angular Velocity Change When a Mass on a String is Pulled Inward?
- Astrum
- · Replies 13 ·
Bullet strikes a wooden block ()
- taraxrose
- · Replies 12 ·
How to Calculate Induced EMF in a Rotating Coil?
- B4ssHunter
- · Replies 2 ·
Express block 2's acceleration in terms of block 1 and block 3
- NoobeAtPhysics
- · Replies 6 ·
Gravitation between two spheres
- dzidziaud
- · Replies 6 ·
Force problem (not for the faint of heart)
- notallthere
- · Replies 3 ·
What Is the RMS Speed of Deuterons in a Fusion Reactor?
- Eagle's Wings
- · Replies 2 ·
Keeping Food Cold on a Long Summer Trip: Solving the Ice Melt Problem
- icetea07
- · Replies 1 ·
Finding wave speed in a resonant wire from frequency and length
- woaini
- · Replies 13 ·
Conservation of Momentum Flat cars
- JamesClarke
- · Replies 1 ·
Double slit interference with 730 and 558 nm wavelengths
- woaini
- · Replies 5 ·
Classical Mechanics-Moments of Inertia and Torques
- sclatters
- · Replies 3 ·
What happens to the temperature of gas in a moving container?
- LameGeek
- · Replies 5 ·
Electron in a magnetic field problem
- Saitama
- · Replies 37 ·
Calculating Volume of Steel for 230-L Steel Drum with Gasoline
- Nemo's
- · Replies 4 ·
Time between sound intensity peaks from two wheels at different rpm
- woaini
- · Replies 10 ·
Problem with how we solved Temp stress question
- anthonyk2013
- · Replies 9 ·
Classical electrodynamics problem
- omer2013
- · Replies 1 ·
Optics: Thin Lenses - Determining Focal Length
- genevievelily
- · Replies 3 ·
Logic Question; Molecular Shapes
- Qube
- · Replies 6 ·
Angular rotation of a wheel that slips
- g-racer
- · Replies 6 ·
Calculating Heat Dissipation in a 100-W Lightbulb with 3.2cm Glass Bulb
- npr2036
- · Replies 3 ·
Net force and electric field on charge A in a right triangle arrangement
- kurt1992
- · Replies 3 ·
How Much Energy is Stored in a Hurricane's Rotation?
- sinclair18
- · Replies 3 ·
Two Dimensional Motion (Seemingly Simple)
- learnitall
- · Replies 3 ·
How Deep Can a Scuba Diver Safely Dive?
- vac
- · Replies 18 ·
Calculating the velocity of of block that was crossed by a bullet
- danielamartins
- · Replies 3 ·
Simple electrostatic field question
- Kemilss
- · Replies 5 ·
Calculating Net Charge of Three Charges in a Row
- Coco12
- · Replies 1 ·
Rotational Physics: Stopping a Wheel in .3 sec
- icetea07
- · Replies 2 ·
What Angle Does Force F Make Relative to AD in Physics Problem Solving?
- cracktheegg
- · Replies 14 ·
The half-wave rectification of an alternating current
- Poops
- · Replies 1 ·
Spring collision and oscillation problem review
- Dan350
- · Replies 8 ·
Angular momentum merry go round problem
- g-racer
- · Replies 9 ·
How do i practise drawing this diagram.its very difficult
- smart_worker
- · Replies 4 ·
Will the Spring Balance Reading Return to Original mg at Constant Velocity?
- genevievelily
- · Replies 4 ·
Equilibrium and Torque of a table
- wootman23
- · Replies 5 ·
Period, frequency, wavelength, and velocity of a light wave
- Violagirl
- · Replies 5 ·
Mathematical Representation of a Traveling Wave
- Violagirl
- · Replies 1 ·
Why is light intensity 4πD² and not πr²?
- davev
- · Replies 2 ·
Why does the observer measure different frequencies in the two scenarios?
- VU2
- · Replies 15 ·
Finding the angular velocity and rotational kinetic energy
- PhyIsOhSoHard
- · Replies 18 ·
How would you quantify and predict the efficiency of a bungee cord?
- Will2596
- · Replies 3 ·
Angular Momentum and Energy from parametric orbit equations
- oddjobmj
- · Replies 13 ·
An object of mass m, projected into objects m2 and m3
- Jon.G
- · Replies 1 ·
Thermal radiation lab experiment
- subzero0137
- · Replies 5 ·
A man was found laying near a powerline
- xiantom
- · Replies 7 ·