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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Solving Electromagnetics Problems: Finding P from E
- robert25pl
- · Replies 5 ·
Is -1/(2sin²x) + C the antiderivative of cos(x)/sin³(x)?
- laker_gurl3
- · Replies 4 ·
What is the uncertainty of an electron's momentum in an infinite potential well?
- Feynmanfan
- · Replies 2 ·
Interesting Physics Project: Slingshot car
- jen333
- · Replies 2 ·
What does these terms mean in context of duty of care for law
- Agressor
- · Replies 7 ·
S.E in cylinder - Bessel's equation
- JohanL
- · Replies 5 ·
Time-varying uniform plane waves
- robert25pl
- · Replies 7 ·
What Is the Resistance of Each Resistor in a Modified Cube Circuit?
- Dough
- · Replies 6 ·
Solving Circuits Problem with 3 Equations
- Corneo
- · Replies 3 ·
How Can I Solve These Challenging Physics Exam Questions?
- koomanchoo
- · Replies 7 ·
Solving Max Volume Right Circular Cone Inscribed in Sphere Radius 3cm
- PhysicsinCalifornia
- · Replies 3 ·
Niels Bohr atom and magnetic fiels
- tiagobt
- · Replies 4 ·
Solution to Optics Lens Problem: Image Distance in f
- Gshan12
- · Replies 4 ·
Differntiation Bloody Confusing
- dagg3r
- · Replies 6 ·
Finding recent physics articles for extra credit
- Novus Dakota
- · Replies 3 ·
Calculating Fourier Coefficient of 2π-Periodic Function
- Zaare
- · Replies 2 ·
Transform this to an easier integral?
- JohanL
- · Replies 5 ·
Calculating Properties of Helium Gas Under Isothermal Compression
- cogs24
- · Replies 2 ·
Calculating Resistance of Z for 6V Identical Lamps in Parallel Circuit
- nobb
- · Replies 6 ·
In our universe, how many forces are there ?
- MillionYrsFromNow
- · Replies 3 ·
Are Transformations of Data Changing the P-P Plots?
- maccaman
- · Replies 2 ·
How Do You Calculate the Equilibrium Angle of a Magnetic Square Coil?
- ldzcableguy
- · Replies 12 ·
Slit Diffraction in Water: Solving for the Distance Between Dark Fringes
- sghaussi
- · Replies 2 ·
How can I build a giant paper tower without using a ladder?
- irefay
- · Replies 3 ·
Calculating Time to Reach 100 kW Output from Uranium-235 Fission
- whiteshado
- · Replies 6 ·
Find Moment of Inertia with Rotational Spectrum Wavelengths
- Pengwuino
- · Replies 4 ·
How can Kepler's laws help solve tough gravity equations?
- bjon-07
- · Replies 5 ·
Comparing Newton's and Einstein's contributions to physics
- kasemodz
- · Replies 42 ·
Integral Equality: \int f(x)g(x) = \int f(x) * \int g(x)
- Vadim
- · Replies 3 ·
How Many Different Scores Can Occur by the End of the Second Period in Hockey?
- gillgill
- · Replies 2 ·
Solving a Quadratic Equation with Exponential Variables
- minase
- · Replies 2 ·
How Does Temperature Affect Reaction Rates and Molecular Interactions?
- courtrigrad
- · Replies 2 ·
Prove dissipative impulses equal in compression and restitution
- physicsfun
- · Replies 18 ·
Collision time for elastic sphere collision with F = -hx^3/2
- AdamP
- · Replies 3 ·
Double pendulum struck at distance a from pivot
- JohanL
- · Replies 2 ·
Could someone me with a few Algebra 2 problems?
- Timberizer
- · Replies 4 ·
Calculating the Intersection Volume of Two Intersecting Cylinders
- Vadim
- · Replies 2 ·
Evaluate Powers Expressions: (4/9)^(3/2) and (-27)^(-1/3)
- Raza
- · Replies 4 ·
What are F(1) and F'(1) for F(x) = \int_{-x}^{x} \frac{dt}{1+t^2}?
- ziddy83
- · Replies 2 ·
Statics - 3D equilibrium problem
- cyberdeathreaper
- · Replies 2 ·
Is cos(60) equal to cos(-60)?
- The_Prime_Number
- · Replies 2 ·
How to find out if f and f' are continuous?
- twoflower
- · Replies 16 ·
How Do Torque and Force Affect Acceleration and Friction in a Rolling Disc?
- AdamP
- · Replies 3 ·
Does velocity increase with drop height?
- spookeh
- · Replies 2 ·
Build a Solar Powered Car: Ideas Needed!
- Olivia
- · Replies 4 ·
Base collector voltage problem
- eternallove29
- · Replies 6 ·
What Is the Coefficient of Performance of a Carnot Heat Pump?
- ~angel~
- · Replies 3 ·
Total Work (Pumping Oil from a Tank).
- amcavoy
- · Replies 8 ·
Moment of inertia/radius of gyration
- Nylex
- · Replies 2 ·
What are the basic characteristics of the weak nuclear force?
- sapphic_yellow
- · Replies 2 ·
Solving the Sky Hook (Beanstalk) Equation - 65 Characters
- Feynmanfan
- · Replies 10 ·
Solve Propulsion Problem: Rocket Mass, Fuel, Velocity, Altitude
- Dr.Brain
- · Replies 2 ·
Integrate \frac{1}{t^3 \sqrt{t^2 - 1}} from \sqrt{2} to 2
- DivGradCurl
- · Replies 2 ·
Time dependent perturbations and method of succesive approximations
- mattlorig
- · Replies 8 ·
Force and Friction on an Inclined Plane
- wikidrox
- · Replies 4 ·
How can counting time be scheduled for a source with a high count rate?
- Soilwork
- · Replies 8 ·
How Do You Calculate the Distance a Burning Body Descends Under Gravity?
- devious_
- · Replies 6 ·
Radioactive Decay: Finding the Half-Life of K-40 in KCL
- JingXionG
- · Replies 2 ·
Calculating Minimum Stopping Distance for a Car: Solving for Vf^2 = Vo^2 + 2ad
- bullroar_86
- · Replies 2 ·
Frequency of collisions of the gas
- DeathKnight
- · Replies 6 ·
Successfully Completed Egg Project: Seeking Input
- deficiency4math
- · Replies 3 ·
Lorentz transformation for simultaneous events in different frames
- andrew410
- · Replies 3 ·
What is the Role of Rotational Inertia in Physics Problems?
- Bookw0rm
- · Replies 4 ·
Can gravitational force be ignored for an electron in an electric field?
- Jodi
- · Replies 4 ·
Solving Acceleration Problem with Cardboard Balls
- deficiency4math
- · Replies 2 ·
What Depth Achieves Sixfold Atmospheric Pressure in a Lake?
- cavery4
- · Replies 2 ·
How Does a Gasoline Engine Manage Heat?
- ziddy83
- · Replies 2 ·
3.0g copper penny loses what fraction of its electrons
- Jodi
- · Replies 3 ·
What Are Common Mistakes in Calculating Electron Transitions and Spectral Lines?
- scorpa
- · Replies 2 ·
Period for electromagnetic waves
- convict11
- · Replies 3 ·
Solve Pendulum Problem: Max Speed of Child in Motion
- gangrene
- · Replies 4 ·
What is the specific heat of the block?
- jennypear
- · Replies 2 ·
How Do Buffers React to Strong Acids and Bases?
- dagg3r
- · Replies 2 ·
Checking dilution and limiting reagent chemistry problems
- Raza
- · Replies 2 ·
String of mass 2.4×10⁻³ kg and length 0.60 m vibrating at 100 Hz - find tension
- naeblis
- · Replies 6 ·
Radius of convergence for ∑(2n/(n²+1))zⁿ and conditional convergence at z = -1
- broegger
- · Replies 11 ·
What is the final temperature of the expanding monatomic gas?
- ~angel~
- · Replies 4 ·
Relativistic Doppler effect for reflected radar waves
- andrew410
- · Replies 3 ·
Internal Resistance and Circuits
- james_rich
- · Replies 4 ·
Why do crystal glasses shatter when hot liquid is poured into them?
- APool555
- · Replies 2 ·
How Many Angles Can a Quaternion Represent in 3D Space?
- Raparicio
- · Replies 6 ·
Hmm, I know in a vacuum that with projectile motion
- schattenjaeger
- · Replies 3 ·
How Does Bending Affect the Shape of a Clamped Rod with a Mass?
- Logistics
- · Replies 8 ·
L.E.D's and the photoelctric effect
- ryan750
- · Replies 2 ·
Rationalize the denominators problem
- Gughanath
- · Replies 4 ·
When hydrogen and oxygen gas combine to form water vapor
- whozum
- · Replies 10 ·
Geometric efficiency of a detector
- Soilwork
- · Replies 5 ·
Why Cant I Figure this stuff out
- derekbeau
- · Replies 10 ·
How High Must a Cart Be Released to Safely Complete a Loop-the-Loop?
- Naeem
- · Replies 10 ·
Calculating Buoyancy to Find a Polar Bear's Mass
- thegreatone
- · Replies 5 ·
Velocity as a function of time?
- bullroar_86
- · Replies 3 ·
How do you Determine Increases/Decreases in a Function?
- Bosnrules
- · Replies 2 ·
Identifying subject, predicate, and logical form of propositions
- kennethj67
- · Replies 18 ·
Solving Spring Problems Involving Mass and Frictionless Floor
- Naeem
- · Replies 3 ·
Understanding Trigonometry: Explanation of the Inverse Tangent Function
- DivGradCurl
- · Replies 2 ·
Triple integrals in spherical coordinates
- ACLerok
- · Replies 2 ·
Does Faraday's Law Indicate Charge Separation in a Loop?
- cair0
- · Replies 3 ·
How Can I Effectively Prepare for a Major Exam with Limited Past Papers?
- Logistics
- · Replies 4 ·
What Type of Tree Diagram is Needed to Solve this Probability Problem?
- seiferseph
- · Replies 2 ·
Solving for Ball Collision: A vs. B Atop a Building
- kidia
- · Replies 2 ·