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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If a gas is at STP, is atm pressure 1?
- tomrh3
- · Replies 1 ·
What Is the Second Solution to the Given Differential Equation?
- schattenjaeger
- · Replies 7 ·
Why divide by 2 when finding probability of exactly 2 values on 5 dice
- rad0786
- · Replies 1 ·
Electric Potenital engery trouble
- mr_coffee
- · Replies 5 ·
Magnetic Force: Halving the Distance
- mystry4
- · Replies 1 ·
Solving Friction Problems: Why Only Static Friction Applies?
- grief
- · Replies 5 ·
What is the work done on the block by the worker and weight forces?
- ViewtifulBeau
- · Replies 2 ·
How to determine if basic trigonometric functions are continuous
- vitaly
- · Replies 1 ·
Finding net electric potential, i got it set up right, but somthing is f'ed up
- mr_coffee
- · Replies 1 ·
Domain of f(x) from -9 to 10 - Pre-calc Function
- litz
- · Replies 1 ·
How Do You Calculate the Electrostatic Force Between Two Charged Lines?
- mousesgr
- · Replies 5 ·
What Principles Determine Carbon's Ground State Electron Configuration?
- DDS
- · Replies 1 ·
Finding composition of lead and tin mixture using specific gravity
- Agnostic
- · Replies 3 ·
Ok, this picture is a bit harder to understand.
- NotaPhysicsMan
- · Replies 2 ·
Calculate Forces on Mr. Porter's Sign Outside Home
- brandon1
- · Replies 9 ·
Exact values of sin(30) and cos(3pi/2)
- cscott
- · Replies 3 ·
How Do You Calculate Molar Masses from Diffusion Rates and Density?
- Canuck156
- · Replies 3 ·
Work and acceleration of rescue team
- ViewtifulBeau
- · Replies 5 ·
What is the Simplified Expression for 6n^5+15n^4+10n^3-n?
- rover
- · Replies 8 ·
Understanding Bounded Intervals to Suprema and Infima
- Icebreaker
- · Replies 1 ·
Help checking my rational equation solutions
- mlbmaniaco
- · Replies 14 ·
Finding Multiplicative Inverse of 23 in Z_31
- Benny
- · Replies 5 ·
Simple Mechanics confusing me:S
- brandon26
- · Replies 4 ·
Where does the crate permanently come to rest?
- Doppler
- · Replies 3 ·
Lorentz transform for acceleration
- mntb
- · Replies 1 ·
What is the Limit of 1/x sin(1/x) as x Approaches 0+?
- mr_coffee
- · Replies 13 ·
How Do I Solve These Complex Newton's Laws Problems?
- chipsdeluxe
- · Replies 3 ·
Collision between a steel plate and meterstick in frame S?
- mntb
- · Replies 2 ·
How Can We Prove that a Curve with Perpendicular Derivative Lies on a Sphere?
- sharpstones
- · Replies 2 ·
Time Dilation: Showing Relation b/w Intervals
- mntb
- · Replies 1 ·
Ideas as to how I should start to integrate this one?
- LocationX
- · Replies 4 ·
Solving Ball Hitting Ramp Physics Problem
- DrKn
- · Replies 2 ·
Where Do I Start with First-Order Linear ODEs?
- decemberdays86
- · Replies 8 ·
Find the number of diagonals that can be drawn in an n-side polygon
- fork
- · Replies 3 ·
Length of Curve (Calc 2) question
- twiztidmxcn
- · Replies 2 ·
Trigonometric Identities: Simplifying and Proving
- brandon26
- · Replies 2 ·
Is the Secant Method's Convergence to -1 Provable?
- pinodk
- · Replies 1 ·
Solving ODE: Integrating Factor for Problem 4d
- roryhand
- · Replies 2 ·
What Happens to ln[(x+2)/(x-1)] as x Approaches -2 from the Left?
- gillgill
- · Replies 3 ·
Force needed to keep block stationary on accelerating wedge
- frozen7
- · Replies 9 ·
Why does the slope of a graph representing Ohm's Law equal the resistance value?
- jsalazar
- · Replies 2 ·
Capacitance Across Not-So-Parallel Plates
- ^eMpTy^
- · Replies 2 ·
Did I accurately determine the forces on the stick figure athlete?
- NotaPhysicsMan
- · Replies 6 ·
How Far Will a Box Slide with a Coefficient of Kinetic Friction of 0.23?
- jshaner858
- · Replies 9 ·
Is There a Difference Between Sin and Cos in Traveling Wave Equations?
- hotmail590
- · Replies 3 ·
What Are the Electric Field Components at the Center of a Charged Square?
- mousesgr
- · Replies 1 ·
Electric Field Projectile Motion
- physicsss
- · Replies 2 ·
Power and focal length of human eye
- 123Sub-Zero
- · Replies 1 ·
Why Does the Cardboard Stick to the Inverted Water-Filled Cup?
- [AFT]
- · Replies 1 ·
Quantum Question and Binding Energy Question
- vg19
- · Replies 3 ·
Integrating √(1 + 4cos²2x) for arc length
- FluxCapacitator
- · Replies 14 ·
Finding Roots and Continuity of Functions
- dekoi
- · Replies 4 ·
How to prove stuff about linear algebra?
- *melinda*
- · Replies 3 ·
Step PN Junction - Energy Band Diagram
- metroplex
- · Replies 1 ·
How do I solve this integral from the attached image?
- Azael
- · Replies 2 ·
Derivating a from v (lorentz transform)
- mntb
- · Replies 1 ·
Finding planet radius from satellite orbit and surface gravity
- fiestytig
- · Replies 6 ·
Finding the Value of C and Solving for Roots in a Quadratic Equation
- discombobulated
- · Replies 2 ·
The Work - Energy Theorem in a pulley?
- erik-the-red
- · Replies 1 ·
Graph the weight gain and loss during the pregnancy
- gillgill
- · Replies 3 ·
Some questions about math factor proves
- furtivefelon
- · Replies 2 ·
Can Varying Concentration, Surface Area, and Temperature Prevent a Reaction?
- Intr3pid
- · Replies 1 ·
Temperature graph for 2.0kg ice heated with 200W immersion heater
- omarshaffi
- · Replies 1 ·
Scale reading in accelerating elevator and satellite gravity
- chipsdeluxe
- · Replies 1 ·
Projectile Motion Problem. Very HARD
- M1st3rmarbl3s
- · Replies 5 ·
Time dilation(correct/not correct)
- mntb
- · Replies 1 ·
Solving √ x + 4/3 y with p = 3.4 e3 Kg m-³
- stepha
- · Replies 3 ·
Problem : Metrics and Induced Topologies
- AKG
- · Replies 2 ·
Solving ln(x+4)=2 without going in circles
- member38644
- · Replies 2 ·
Finding x and y components of V2 pointing at +35° to +x axis
- confusedaboutphysics
- · Replies 2 ·
How High Was the Elevator When the Nut Fell?
- SS2006
- · Replies 5 ·
Is f(x) = 2x Onto, One-to-One, or a Bijection for Different Domains?
- raross
- · Replies 4 ·
Writing an equation for force vs acceleration from data
- Kandy
- · Replies 12 ·
Integral of (-39240)(9-x²)^(1/2)
- n05tr4d4177u5
- · Replies 2 ·
What factors affect the calculation of the third cosmic velocity?
- sapta
- · Replies 6 ·
Help with Thermodynamics Problem: Proving Energy & Calculating Heat Input
- Perses
- · Replies 4 ·
Calculating Angle Ratios in Electrostatic Systems
- physicsss
- · Replies 5 ·
10 men to build 120 houses in 60 hrs
- latyph
- · Replies 1 ·
Leaf temperature rise in sunlight from solar radiation
- frozen7
- · Replies 13 ·
Solving Vector Calculus Problems in r1(t) and r2(t)
- Electro
- · Replies 2 ·
Derive u from v with Lorentz Transform
- mntb
- · Replies 1 ·
Why Did I Calculate the Cliff's Height Incorrectly?
- confusedaboutphysics
- · Replies 2 ·
Rearrange the Projectile Motion equation
- mlbmaniaco
- · Replies 2 ·
How to write this logarithmic equation as a power
- brandon26
- · Replies 7 ·
How Do I Use Taylor Polynomials for Approximation and Error Estimation?
- Benny
- · Replies 1 ·
What is the derivative of x.(rootx) from first principles
- NewScientist
- · Replies 9 ·
Confirm Calculation of Bullet Velocity to Hit Skeet
- AaronL
- · Replies 4 ·
Calculating Velocity of Water Stream for Archer Fish Target Practice
- Janani
- · Replies 1 ·
Car load shift needed for steeper incline with friction limit
- SheldonG
- · Replies 10 ·
Electromag Potential difference
- lektor
- · Replies 6 ·
Why is the negation of (P v Q) equivalent to (~P & ~Q)?
- Coldie
- · Replies 3 ·
What is the maximum upward acceleration of the ball?
- Effitol840
- · Replies 2 ·
Elevator falls when I am inside
- djeipa
- · Replies 10 ·
Projectile motion: ball thrown at 45° with 33 m range
- Katrina
- · Replies 7 ·
Calculating volume and lifting gas for a zero-pressure balloon
- physicsCU
- · Replies 1 ·
Box sliding with kinetic friction, initial speed 4.0 m/s
- confusedbyphysics
- · Replies 8 ·
Angular Separation Between Two Stars
- ps2983
- · Replies 1 ·
Solving |x-1|+|x-2|>1 with absolute values
- JasonRox
- · Replies 3 ·
Solving Bernoulli Equation - Can't Get Correct Answer
- amcavoy
- · Replies 3 ·