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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Calculating Electric Fields in a Gieger Counter
- choole
- · Replies 2 ·
Relative Motion Calculations: Solving for Time and Heading
- 404
- · Replies 4 ·
Matrice, solving the system, need to put it in right form
- mr_coffee
- · Replies 3 ·
Proving solutions to f'' + 5f' + 6f = 0 form a vector subspace
- rad0786
- · Replies 14 ·
Geometric Proof of Dot Product: |A dot B| ≤ |A||B|
- derekmohammed
- · Replies 5 ·
2 theory related multiple choice questions
- daewoo
- · Replies 8 ·
Parametric Equations and cartesian equation
- courtrigrad
- · Replies 5 ·
Why does ΔV = V·Δα for the change in velocity in circular motion?
- beginner16
- · Replies 11 ·
Vectors of Freely Falling Bodies
- scorpa
- · Replies 12 ·
What Is the Probability of Correctly Guessing the Colors of Cards?
- Alexsandro
- · Replies 4 ·
What Is the Probability of Getting at Least One Pair of Shoes from Five Pairs?
- Alexsandro
- · Replies 6 ·
What Is the Average Speed of a Cyclist's Round Trip?
- xcutezix
- · Replies 1 ·
How many different 4-digit numbers can be formed here
- fork
- · Replies 6 ·
Material science-Specification of composition
- mugzieee
- · Replies 2 ·
How do you derive e=mc^2 from first principles?
- Neohaven
- · Replies 2 ·
Solving the Relativity Question: When Does Mission Control Receive Confirmation?
- andytran
- · Replies 2 ·
Motion along a Straight Line problem
- ledhead86
- · Replies 2 ·
How Do You Calculate Capacitance in a Series RC Circuit?
- UnseenAngels07
- · Replies 1 ·
How Do You Apply Newton's Law to Solve Incline Problems?
- r3dxP
- · Replies 1 ·
Solve Linear Equations Using Gauss-Jordan in C
- niteshadw
- · Replies 5 ·
The minimum distance between an object and it's real image
- eep
- · Replies 1 ·
Simple empirical formula question
- Stevecgz
- · Replies 2 ·
Calculating the speed of P-waves.
- stepha
- · Replies 4 ·
How Do You Solve Ampere's Law for a Hollow Wire?
- Pepsi24chevy
- · Replies 2 ·
Physics:finding torque equation in static equilibrium
- r3dxP
- · Replies 6 ·
Gravitational force of particles
- sweetrose
- · Replies 1 ·
Calculating F2 Needed to Produce 120 g of PF3
- Pengwuino
- · Replies 3 ·
Angular velocity (check it out n tell me what u guys think)
- phy_bits
- · Replies 1 ·
Solving the Ammonium Chloride Problem
- chound
- · Replies 2 ·
Gauss' Law and magnitude of the electric field
- DivGradCurl
- · Replies 4 ·
Statistics -> Variance and Linear Combinations
- adc85
- · Replies 2 ·
Draw a complete truth-table for the following sentence
- robert
- · Replies 4 ·
Light escaping a glass cube with central spot: which faces to cover?
- Electro
- · Replies 1 ·
Finding k for Continuous Function on Any Interval
- Tom McCurdy
- · Replies 3 ·
What is the absolute value of -8?
- vincentm
- · Replies 12 ·
Approximate the integral int (1 - cos x)/x dx using Taylor expansion
- thenewbosco
- · Replies 1 ·
What is the speed of each train at impact?
- Source
- · Replies 4 ·
How to find integrals like int (1-x)(x^2-4)dx
- amcavoy
- · Replies 2 ·
Length contraction equation. what am i doing wrong?
- Sneil
- · Replies 3 ·
Four statics problems for test preparation
- gjt01
- · Replies 13 ·
Finding h1 in a U-tube with mercury and water columns
- thenewbosco
- · Replies 10 ·
Shawn's speed relative to Susan's reference frame
- xyoonboixkpx
- · Replies 2 ·
Gold car at 12 m/s passes stationary green car accelerating at 1.8 m/s²
- akademiks
- · Replies 9 ·
Equilibrium & Friction Forces: What's the Answer?
- allstar1
- · Replies 3 ·
Three Forces of 30N , 45N and 50N act on an Object
- Karma
- · Replies 2 ·
Taller or shorter than the Empire State Building?
- GuMdRop
- · Replies 2 ·
Projectile Motion football kick
- chriszollman
- · Replies 8 ·
Finding n when (2^1)(2^2)(2^3)...(2^n) = 210
- rocketboy
- · Replies 5 ·
What Angle of Projection Makes Maximum Height Equal to Range?
- kuakkgom
- · Replies 1 ·
Two locks with five available keys out of six
- Alexsandro
- · Replies 7 ·
Can the Vector Sum OC Lie on, Inside, or Outside the Circle?
- Karma
- · Replies 4 ·
Watercraft with velocity east and acceleration south
- F.B
- · Replies 1 ·
Why does multiplying a 3 s.d. number by a 2 s.d. number give 2 s.d.?
- Diane_
- · Replies 2 ·
How Does a Violin String's Motion Evolve After Being Released?
- stunner5000pt
- · Replies 10 ·
How Do You Solve These Complex Math Problems?
- schattenjaeger
- · Replies 15 ·
Can 1^k+2^k+...+n^k be written as a degree k+1 polynomial?
- Icebreaker
- · Replies 4 ·
Resonance and Sound Waves: Calculating Speed of Sound and Phase Differences
- loto
- · Replies 3 ·
Finding x and direction when three coplanar forces are in equilibrium
- rocketboy
- · Replies 8 ·
Determining Quadratic and Cubic Functions with Integral Coefficients
- Dough
- · Replies 9 ·
Projectile Motion of a Batter Problem
- PhilosophyofPhysics
- · Replies 1 ·
Time a 36 m plane is visible passing a stationary plane at 45 m/s
- gwynethrosie
- · Replies 3 ·
Max Electrical Force of Two Protons Aimed Toward Each Other
- gmuniz
- · Replies 3 ·
Gauss's Law: I need to check this answer
- DivGradCurl
- · Replies 1 ·
Still not getting getting correct solution
- gmuniz
- · Replies 1 ·
Integrating Calc Equations: U-Substitution Solutions
- Entropy
- · Replies 2 ·
Finding Partial Derivatives for z in f(x,y)=sin(x)*y - Bob
- Bob19
- · Replies 16 ·
Electric field inside and outside concentric cylinders
- mr_coffee
- · Replies 6 ·
How Can Finite Group Theory Problems Be Solved?
- hgj
- · Replies 4 ·
Apple thrown from 1.3 m at 2.4 m/s—will it reach 5 m high?
- cherica48
- · Replies 6 ·
Linear Equation with Constant Coefficients Problem
- JM00404
- · Replies 5 ·
Polycrystalline silicon fabrication process
- Salman143
- · Replies 1 ·
How Do You Calculate Tension in Violin Strings?
- hunchback6116
- · Replies 1 ·
How Do You Solve This Complex Exponential Equation for x?
- adc85
- · Replies 3 ·
Parallax Question and Shadow Q (Gnomon?)
- picc84
- · Replies 6 ·
How Does the Cloud Profiling Radar Work?
- toam
- · Replies 1 ·
How Do You Calculate the Angle Between Two Surfaces at a Given Point?
- don_anon25
- · Replies 3 ·
Boy pushing box along floor - friction
- Atilla1982
- · Replies 5 ·
Work done in isothermal expansion from 40 to 10 psig
- shawn100
- · Replies 1 ·
Finding a Basis for Im(T): Elementary Linear Algebra
- Benny
- · Replies 5 ·
Sterngerlach experiments problems,
- belleamie
- · Replies 1 ·
How to Solve Special Relativity Dynamics Problems in Classical Mechanics?
- belleamie
- · Replies 1 ·
Finding the inverse of a 3D rotation matrix
- Benny
- · Replies 2 ·
Oopsy on a Test Problem - Acceleration
- rockmorg
- · Replies 4 ·
What are the possible solutions for x in the congruence equation?
- mattmns
- · Replies 11 ·
Whether this statement is true or false
- an_mui
- · Replies 6 ·
Sterling Approximation for Einstein Solid Multiplicity
- Barley
- · Replies 4 ·
Proving the Equality of ArcTanh(ix) and iArcTan(x)
- Agnostic
- · Replies 2 ·
Does increasing magnet speed through a coil increase electromagnetic induction?
- bayan
- · Replies 5 ·
Integration problem about household electricity
- Stevecgz
- · Replies 3 ·
How High Can Basketball Players Jump?
- Intr3pid
- · Replies 1 ·
Calculating Force to Accelerate Lawn Mower: Newton's 2nd Law
- kgood5885
- · Replies 1 ·
Ball dropped in sand and pulley system with blocks
- BriannaUND
- · Replies 1 ·
Average Velocity of a Rocket Launch: Calculating Magnitude and Time
- courtrigrad
- · Replies 2 ·
2 more thermal expansion questions
- F|234K
- · Replies 5 ·
Is an Open Set Still Open After Removing Finite Points?
- *melinda*
- · Replies 1 ·
Kinematics kangaroo jump question
- Intr3pid
- · Replies 6 ·
Proving inf(x) = lim with Cauchy Sequence
- *melinda*
- · Replies 1 ·
When does a car traveling at 60 mph overtake a bike at 15 mph?
- eNathan
- · Replies 13 ·