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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Net force on each side of a heated sealed box with air at 400K
- ice87
- · Replies 3 ·
Water at Niagara Falls cascading at 49.4 degrees below horizontal
- Morokana
- · Replies 2 ·
Where to find a video of a Wilson cloud chamber
- Spastik_Relativity
- · Replies 2 ·
How Does Newton's Law of Gravitation Influence Modern Physics?
- Dirac
- · Replies 7 ·
Treasure Hunt: Adding Vectors for Displacement
- shimmer71
- · Replies 2 ·
Vector Problem: Find Expression for C in Terms of A,B,d
- fahd
- · Replies 5 ·
Is ABCDEF = AB(C(D))EF for matricies
- eax
- · Replies 2 ·
An angle is given to one significant figure as 7 degrees
- courtrigrad
- · Replies 2 ·
Find the domain of the vector functions
- Whatupdoc
- · Replies 5 ·
Finding the charge on the nucleus for Mg, Ne, K⁺, and S²⁻
- soggybread
- · Replies 3 ·
Can complex potentials lead to allowed trajectories?
- eljose
- · Replies 1 ·
Calculating Horizontal Force for a Shopping Cart on an Inclined Plane
- wr1015
- · Replies 3 ·
How to Correctly Express Electric Charge Density for a Point Charge?
- Yeldar
- · Replies 4 ·
How to Calculate the Resultant Vector from Multiple Displacement Vectors?
- LuvIz4ever
- · Replies 2 ·
Wondering where the distance formula from acceleration due to gravity comes from
- Icedfire01
- · Replies 2 ·
Perpendicular 3Dimensional Vectors
- thursdaytbs
- · Replies 3 ·
Sports Car vs Speedster: Who Wins?
- devildog6289
- · Replies 1 ·
Uniform acceleration, projectile motion, and displacement problems
- Dj_Physics
- · Replies 3 ·
How can I simplify the messy integral in the Fourier series for f_n(x)?
- quasar987
- · Replies 3 ·
Vector triple product proof: why doesn't ax(bxc) = (c.a)b-(b.a)c work
- mr_coffee
- · Replies 1 ·
Does the speed of a wave in a spring depend on the maximum speed of each coil?
- insertnamehere
- · Replies 3 ·
Developing special and general relativity
- Zeteg
- · Replies 3 ·
Find Horizontal Force F for 7.3kg Cart Up 13° Incline
- wr1015
- · Replies 5 ·
Fermat numbers and prime divisibility properties
- SomeRandomGuy
- · Replies 2 ·
Proving the Existence of Even and Odd Functions in f:R-->R
- quasar987
- · Replies 4 ·
Calculating Resonance Frequency of Original Metal Pipe
- ayrricjones
- · Replies 1 ·
Where Does Aaron Catch Up to Alyssa?
- SwAnK
- · Replies 4 ·
How do I solve problems involving conservation of momentum?
- shannon10
- · Replies 2 ·
Geometry Discrete Problem Thanks
- Karma
- · Replies 2 ·
Find the period of the function
- quasar987
- · Replies 1 ·
What does exp mean in the P(f) equation?
- fusi0n
- · Replies 2 ·
Calculating Electric Potential and Kinetic Energy for Moving Charges
- lawandb
- · Replies 2 ·
The missile and aircraft the saga goes on
- ozzy
- · Replies 6 ·
Proving Limit of sin (n!*R*π) for Rational R
- happyg1
- · Replies 2 ·
Solving y=x² and y=x-1/4 simultaneously
- Kandy
- · Replies 3 ·
Questions on kinematics (distance/velocity/acceleration)
- dnt
- · Replies 9 ·
What is the relationship between electric field and charge distribution?
- stunner5000pt
- · Replies 2 ·
Charged particle in magnetic field: show p = qBr at relativistic speeds
- Enigma77
- · Replies 1 ·
Gravity on strange planet and projectile angle for range equal to three times height
- Moneer81
- · Replies 7 ·
Divisible of natural numbers
- Alexsandro
- · Replies 11 ·
Calculating Acceleration and Fuel Consumption in Rocket Science
- Meteo
- · Replies 2 ·
Problem on Potential of Sphere
- echau
- · Replies 4 ·
Finding a third equation for a unique solution to a 3×3 system
- Naeem
- · Replies 2 ·
Proof of 0<=x<h for Rigorous Calculus by Tom Apostol
- asdf60
- · Replies 3 ·
Rocket Height as one-dimension motion
- popxel
- · Replies 1 ·
What is the significance of potential energy function in central force fields?
- benitta
- · Replies 1 ·
Electric field of non-conducting sphere with charge density ρ(r) = ρ₀(1 - r/R)
- Azael
- · Replies 4 ·
Divisibility Probability of Randomly Selected Natural Numbers
- Alexsandro
- · Replies 4 ·
Supernova explosion n angular momentum
- benitta
- · Replies 1 ·
C++ game project ideas for beginners with arrays and classes
- ermines
- · Replies 9 ·
Calculating Surface and Volume Integrals on a Sphere: A Problem-Based Approach
- Noone1982
- · Replies 3 ·
How Can I Solve the ODE y' = x^2 + y^2?
- Benny
- · Replies 5 ·
Looking for supplementary physics book
- DarkMatter
- · Replies 1 ·
Solving a 1200 N Uniform Boom Physics Problem
- chaddunn
- · Replies 5 ·
K Physics: How much work is done by friction on a sliding block?
- DaRotot
- · Replies 2 ·
Electric field strength problem
- chemkid
- · Replies 2 ·
Matrix Norms, and proving their characteristics
- pinodk
- · Replies 5 ·
Solving Analysts' Inflation Prediction Problems
- mouse
- · Replies 1 ·
Finding neutral axis and second moment of inertia for T-beam
- Struggling
- · Replies 9 ·
Calculating Work in an Electric Field: Moving Point Charges
- Scirel
- · Replies 2 ·
Can {u+v, a*u} Form a Basis for Vector Space V?
- loli12
- · Replies 1 ·
Two masses sliding in a track connected by springs
- akinoshigure
- · Replies 2 ·
Tension in String of 5.5kg Object in Accelerating Elevator
- DaRotot
- · Replies 1 ·
Field at 45° from charged sphere and plane with σ₀ = ρ₀R/2
- matpo39
- · Replies 1 ·
How Long Until Two Cars Collide?
- drunkenfool
- · Replies 2 ·
If a problem doesnt have constant acceleration
- dnt
- · Replies 1 ·
Gravity problems - when is the Earth's attraction 5 Newtons
- Sedm
- · Replies 3 ·
How Do You Calculate the Tension in a Rope Pulling a Log Up an Inclined Ramp?
- black02
- · Replies 3 ·
Freezing Water with a Reversed Steam Engine
- physicsss
- · Replies 3 ·
Does Throwing an Object Downward Change Its Acceleration Due to Gravity?
- devildog6289
- · Replies 1 ·
Finding the second derivative of ln(x^8)
- compute_a_nerd
- · Replies 2 ·
Permutation and combination in maths
- Jurij
- · Replies 17 ·
Hardest 2 dimensional Kinematic Question I have ever encountered
- Dooh
- · Replies 2 ·
Find exponential function f(x)=Ca^x
- linhthuy256
- · Replies 25 ·
Proving a perfect square with factorials
- Coldie
- · Replies 3 ·
How do I find the area of a parallelogram using cross product?
- Townsend
- · Replies 3 ·
Golf ball initial velocity and launch angle from range and flight time
- gen1pro
- · Replies 3 ·
Proving the Distributive Property of XOR in Boolean Algebra
- Tony11235
- · Replies 6 ·
Solving for d_2 in a cubic denominator equation
- DB
- · Replies 6 ·
Are 150 and 150. different in significant figures?
- dnt
- · Replies 7 ·
Rotating light polarization by angle φ with two polarizers
- 2Pac
- · Replies 4 ·
How do you test the convergence of i^n (imaginary number) or (-1)^n?
- Agnostic
- · Replies 15 ·
Prove that summation of n(n+1)/2 is true for all integers.
- sre2f
- · Replies 12 ·
Simplifying Positive Indices - Hey Folks!
- turnstile
- · Replies 1 ·
Pressure change when pipe diameter decreases by 20%
- DB
- · Replies 5 ·
Tangent Properties Symmetry, domain, asymptotes, zeroes
- aisha
- · Replies 7 ·
How Can I Solve These Two Calculus Problems on Parabolas and Tangents?
- JustinJS
- · Replies 1 ·
Total Electric Charge on an annulus
- Tcat
- · Replies 21 ·
Train accelerating then braking between stations 1.15 km apart
- azure.hubris
- · Replies 6 ·
Can You Solve These Physics Problems on Constant Acceleration?
- Meteo
- · Replies 5 ·
Solving 3(x-3) + 4x + 7 = 5x - 3 and quadratic equations
- Nicholasw
- · Replies 2 ·
How Do You Calculate Work Between Protons and Solve Capacitor Charge Problems?
- cdf0688
- · Replies 4 ·
Electric field lines around a copper cube in a uniform field
- andy2004
- · Replies 1 ·
Determining if three lines are parallel, intersect, or skew
- lijet13
- · Replies 1 ·
Calculating Inverse Functions: Example f(x)=2e^2x + 4
- brandon26
- · Replies 1 ·
Works only when using seconds,but not minutes -really
- beginner16
- · Replies 8 ·
Please help, Express kinetic energy in terms of m and p?
- belleamie
- · Replies 2 ·
Solving a Car Intersection Dilemma
- MrKoffee
- · Replies 2 ·
Electric potential inside and outside sphere
- Ene Dene
- · Replies 2 ·
How can air resistance be incorporated into the falling particle equation?
- pi-r8
- · Replies 4 ·