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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Enthalpy and internal energy relations with Cp and Cv
- cooldudeachyut
- · Replies 4 ·
X-ray diffraction and Bragg's law
- Martin89
- · Replies 5 ·
Image position with glass slab near a concave mirror
- Suraj M
- · Replies 19 ·
Moon-Earth gravitation: finding radius as a function of time
- isukatphysics69
- · Replies 73 ·
Time for radio signal to get to a receiver
- Jess_18033152
- · Replies 2 ·
Using Maxwell-Boltzman Statistics
- says
- · Replies 4 ·
Unfingered Guitar String Vibration Frequency: 627 Hz
- Kevin Kim
- · Replies 3 ·
Calculating frequency of the second harmonic
- struggtofunc
- · Replies 2 ·
Where is the hinge point? & what is the moment of inertia of a square?
- randomgamernerd
- · Replies 5 ·
If induced emf increases linearly with time, what is B proportional to?
- appliedF
- · Replies 8 ·
Does angular momentum remain zero when a skater hops onto a sliding board?
- The Head
- · Replies 11 ·
How many wavelengths does Lyman-α split into at 1 Tesla?
- Taylor_1989
- · Replies 7 ·
When to convert units of temperature?
- BlackJ
- · Replies 2 ·
Why are the angles in rope equilibrium the same?
- bolzano95
- · Replies 9 ·
Magnetic field of a long curent carrying tube
- Jahnavi
- · Replies 10 ·
Forces acting on a truck on a slope
- bolzano95
- · Replies 1 ·
GPE Between the Moon and the Earth?
- isukatphysics69
- · Replies 4 ·
Loss of energy and energy loss prevention in circuits
- Daniel2244
- · Replies 9 ·
Carnot Engines Question -- Composite Configuration Efficiency
- lc99
- · Replies 12 ·
How Do Spring Length Calculations Relate to Frequency and Harmonics?
- lc99
- · Replies 25 ·
Express E due to a point charge at the origin
- leeban7
- · Replies 8 ·
Vectors/ Calculus with i and j components
- WhiteWolf98
- · Replies 6 ·
Isothermic and adiabatic compression
- mk9898
- · Replies 17 ·
Evidence that the ship had its engine turned on
- JessicaHelena
- · Replies 14 ·
Does converting mm to m affect a statics moment calculation?
- lc99
- · Replies 4 ·
Calculating Work Supplied by a Flywheel for Forming Machine Operations
- physea
- · Replies 11 ·
How Do You Convert Newtons to Watts for a Maglev Train Acceleration?
- Jon Winter
- · Replies 5 ·
Calculating distance between charged Balls
- psy
- · Replies 10 ·
Consequences of time not being continuous
- YoshiMoshi
- · Replies 3 ·
Electricity and Electric field
- Suyash Singh
- · Replies 5 ·
Electrostatic Force and Field between two charges
- psy
- · Replies 5 ·
Mechanical energy for planet in elliptical orbit around star
- JessicaHelena
- · Replies 3 ·
What force propels the runner forward?
- JessicaHelena
- · Replies 1 ·
What is the velocity of the block pulled by strings
- randomgamernerd
- · Replies 26 ·
How Long Does a Star Live When Converting Hydrogen to Helium?
- Clara Chung
- · Replies 2 ·
When does Bernoulli's equation apply to falling water from a pipe?
- lc99
- · Replies 1 ·
Doppler Effect: Train A and B Whistle Frequency Calculation
- lc99
- · Replies 1 ·
Solving the General Solution for a Heavily Damped Oscillator
- Bonnie
- · Replies 2 ·
Finding phase shift when only initial displacement is given
- isukatphysics69
- · Replies 12 ·
Why does alternate way of solving the problems not work?
- Perseverence
- · Replies 3 ·
Finding the tension of a rope given the mass of a pulley
- Jacobs
- · Replies 9 ·
Loss of energy in DC and loss reduction in AC circuits
- Daniel2244
- · Replies 2 ·
Pressure in the vessel containing water
- Jahnavi
- · Replies 6 ·
Magnitude of the force of static friction
- JessicaHelena
- · Replies 2 ·
Why is Work Negative in PV diagram?
- lc99
- · Replies 2 ·
Which sphere reaches the bottom of the inclined plane first
- JessicaHelena
- · Replies 19 ·
Where Does Thermal Energy Come From in an Inelastic Collision?
- isukatphysics69
- · Replies 1 ·
How does the density of water affect a sphere dipped in it?
- Jahnavi
- · Replies 21 ·
Electric Field Lines for Two Objects on a Frictionless Table
- JessicaHelena
- · Replies 1 ·
Calculation for finding distance with regard to sound intensity
- Aleisha
- · Replies 18 ·
PV Diagram Isothermas and Isochloric Processes
- lc99
- · Replies 4 ·
Understanding PV Diagrams: Analyzing Work, Heat, and Temperature Changes
- lc99
- · Replies 5 ·
Vector addition and the force applied to the shaft of the pulley
- vldst
- · Replies 4 ·
Pressure vs distance from a cold ice cube in air
- Sarvesh Angadi
- · Replies 5 ·
Ladder Leaning against wall -- find the coefficient of friction
- Pedgepoke
- · Replies 5 ·
Poynting vector flux in Purcell problem 9.10
- WWCY
- · Replies 7 ·
Calculating Potential difference (X Ray tube)
- axer
- · Replies 11 ·
Can I Solve This Massive Pulley Problem Without Using Energies?
- isukatphysics69
- · Replies 4 ·
Pulley and Pins on a Frame (beginner statics)
- lc99
- · Replies 8 ·
High voltage circuit with voltmeter in between
- ddobre
- · Replies 3 ·
Find max distance box on hingedbeam can be before rope snaps
- isukatphysics69
- · Replies 7 ·
Why don't pins at B and E affect the shear and moment diagram?
- lc99
- · Replies 1 ·
Applying Bernoulli's equation to find liquid velocity from a straw
- lc99
- · Replies 8 ·
Find the force between 2 blocks
- Helly123
- · Replies 24 ·
Is energy profile of a spring asymmetric with +x and -x?
- Aliasa
- · Replies 2 ·
Equivalent resistance between two points
- Jahnavi
- · Replies 12 ·
Calculating the power output from a persons mouth
- Aleisha
- · Replies 3 ·
How does a rock separate from a spring after being released?
- Fontseeker
- · Replies 23 ·
Batteries in series, parallel, and internal resistance
- ddobre
- · Replies 24 ·
Find the max compression of the spring
- isukatphysics69
- · Replies 12 ·
Change in chemical energy of rocket
- isukatphysics69
- · Replies 20 ·
Electric car and battery problem
- ddobre
- · Replies 12 ·
Is it possible to combine two springs with different constants?
- Fontseeker
- · Replies 22 ·
Speed of a pendulum at the bottom
- Fontseeker
- · Replies 4 ·
Quick Statics Problem (equi. systems)
- lc99
- · Replies 2 ·
Do unit vectors require unit conversion in static problems?
- lc99
- · Replies 2 ·
Using potential energy graph, find particle turning point
- isukatphysics69
- · Replies 3 ·
Writing a result from a table and how many digits should the answer have?
- Karagoz
- · Replies 15 ·
Angular momentum of 6.70 kg particle with position and velocity vectors
- Ella1777
- · Replies 4 ·
How to Calculate Moment of a Couple Using Cross Products?
- lc99
- · Replies 4 ·
Frequency for resonance to occur
- Helly123
- · Replies 33 ·
Electric Flux Through Spherical Surface Centered at Origin
- rizamadiyar
- · Replies 3 ·
Projectile motion, potential and kinetic energy
- Suyash Singh
- · Replies 25 ·
Is Solenoid Inductance Proportional to Turns Squared?
- Alin S
- · Replies 1 ·
Object on 30° slope with position-dependent friction coefficient
- mathchimp
- · Replies 5 ·
Spinning disk and cylinder collision with friction
- HappyFlower
- · Replies 3 ·
Problem about an impulse and a spring
- ubergewehr273
- · Replies 7 ·
Sign of the Faraday-Lenz equation
- Guillem_dlc
- · Replies 1 ·
Calculating Resultant Load on a Structure with a Tensioned Rope
- Trent
- · Replies 3 ·
Thermodynamics - Hypothermia - Heat loss
- Jess_18033152
- · Replies 12 ·
Inelastic collision with an inclined plane
- Vinita
- · Replies 7 ·
AC voltage source driving an inductor and a capacitor
- Jahnavi
- · Replies 26 ·
Kepler's Second Law with Angular Momentum
- icecats
- · Replies 2 ·
Star's orbital period and revolutions around galactic center
- Ella1777
- · Replies 2 ·
Verifying Answer to PV/T at A: Is T2 > T1?
- Jahnavi
- · Replies 14 ·
Can equivalent capacitance be found in a circuit with resistors and capacitors?
- Jahnavi
- · Replies 15 ·
X-ray Flux density and a differential equation for photon scattering
- razidan
- · Replies 13 ·
What is the Magnetic Field and Flux at Point O?
- Helly123
- · Replies 29 ·
Intensity at 1.50 mm in double slit interference pattern
- Haramura
- · Replies 6 ·
Refractive index of light from permittivity
- Taylor_1989
- · Replies 3 ·