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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Separate sand, salt, water through whatever means necessary
- aek
- · Replies 3 ·
What Is the Phase Difference Between Points on a Stationary Wave?
- Sanosuke Sagara
- · Replies 2 ·
Trapezoidal Rule (just need to check my answer)
- DivGradCurl
- · Replies 2 ·
Why Did My Passion for Math Lead to Disappointment at College?
- QuantumTheory
- · Replies 2 ·
What is the angular acceleration of a uniform rod when a string is released?
- sebasalekhine7
- · Replies 7 ·
Thermal expansion of steel pipe
- rwh
- · Replies 3 ·
Solving for Displacement in Circular Motion
- shawonna23
- · Replies 43 ·
How to Simplify Boolean Equations with Continuous Bars?
- cact
- · Replies 7 ·
Prove: |a-b|≤|a|+|b| using Definition of Absolute Value
- eme_girl
- · Replies 2 ·
Finding enclosed charge with nonuniform field E = (a + bx²)i
- kdp58
- · Replies 5 ·
What is the acceleration of an electron in a cathode ray tube?
- runner1738
- · Replies 9 ·
When Will Particle B Pass Particle A in 2 Particles, 1 Direction?
- runner1738
- · Replies 4 ·
How much fuel has the rocket burned?
- ktd
- · Replies 4 ·
Tension in a hanging 64 kg box at rest and accelerating
- ktd
- · Replies 12 ·
Expression eqivalent to 1+sec/cos ? Explain
- aisha
- · Replies 15 ·
Add these 3 vectors to show that they all add up to zero
- aek
- · Replies 3 ·
Understanding Recursive Methods and Sorting Algorithms
- courtrigrad
- · Replies 2 ·
What are the solutions to several challenging physics problems in mechanics?
- omagdon7
- · Replies 5 ·
River crossing and spiral motion in cylindrical coordinates
- supersix2
- · Replies 2 ·
Calculating Current Density and Current in a Gold Wire
- kyang002
- · Replies 5 ·
Calculating Charges q_1, q_2, and q_3 with Integration
- kyang002
- · Replies 6 ·
Strange question with 2 charges, and net electric field between them = 0
- michaelw
- · Replies 6 ·
Electric Flux Through Shown Surface
- kyang002
- · Replies 12 ·
Calculating Density of Free Electrons in a Metal Wire
- kyang002
- · Replies 4 ·
Electron in a parallel plate capacitor - finding plate's magnitude
- vaxopy
- · Replies 4 ·
How Is Angular Acceleration Calculated in a Rotational Torque Problem?
- hun_nomin
- · Replies 2 ·
How Is the Radius of a Critical Mass Sphere Calculated in Physics?
- soyee7
- · Replies 2 ·
A few questions about Quantum stuff
- scissors
- · Replies 9 ·
Finding unit vector notation for sum of four vectors with mixed formats
- Kp0684
- · Replies 5 ·
Solving for the Energy and Direction of Emitted Photons from a Moving Pion
- mike217
- · Replies 6 ·
Calculating Air Time of 23.8 ft Toss: Part B
- med9546
- · Replies 2 ·
Help with 5 physics problems by Monday for $1 per answer
- kyang002
- · Replies 2 ·
Perpendicular position vector and velocity?
- quiksilver
- · Replies 4 ·
At what height is this flower pot dropped?
- ProBasket
- · Replies 2 ·
Rocket Velocity and Mass Ratio
- UrbanXrisis
- · Replies 3 ·
Trouble finding the integral for volume
- Pseudo Statistic
- · Replies 4 ·
Where Are Electron-Hole Pairs Created in Solar Cells?
- properphysicist
- · Replies 2 ·
How Do You Calculate the Moment of Inertia for a Rubber Tire?
- bemigh
- · Replies 2 ·
Op-amp circuits homework help for tomorrow
- logicalman
- · Replies 3 ·
Minimum distance for 1 pc charged particle fired at fixed 1 C charge
- neoclee
- · Replies 18 ·
How far does the person travel in km?
- runner1738
- · Replies 12 ·
Calculating Satellite Orbital Radius from Period
- Format
- · Replies 20 ·
How Do Charges Behave at the Corners of a Square?
- michaelw
- · Replies 7 ·
What Is the Equivalent Expression for a Trigonometric Cosine Identity?
- aisha
- · Replies 11 ·
Maximum height of a projectile
- dg_5021
- · Replies 3 ·
Work Done by Gravity on Box on Ice Arc - Radius 8m, Angle 14 Degrees
- BlasterV
- · Replies 6 ·
Calculating Impulse of Golf Ball - Average Force of Impact
- UrbanXrisis
- · Replies 2 ·
How Does Wolf Population Dynamics Affect Moose Numbers?
- apchemstudent
- · Replies 2 ·
Where Should a +2.5Q Charge Be Placed to Nullify the Force?
- mad
- · Replies 31 ·
Electric field between charged parallel plates?
- johny_doe
- · Replies 4 ·
What is the velocity of the 10.0 kg object after the collision?
- scorpa
- · Replies 6 ·
How to Solve a Boolean Equation with a Bar Above One Variable?
- cact
- · Replies 2 ·
Can you define a position vector at the origin in cylindrical coordinates?
- Phymath
- · Replies 6 ·
What is the Basic Concept of Logarithms in Calculus?
- thomasrules
- · Replies 2 ·
Maximum weight of crate with cords BCA and CD rated for 100 lbs each
- SurfChic1983
- · Replies 2 ·
Probability of drunks being apart in 1D random walk
- jessawells
- · Replies 1 ·
Two charged balls suspended from a point: finding charge and tension
- vaxopy
- · Replies 2 ·
Understanding VT Graphs: Measuring Displacement and Acceleration
- hype_chicky
- · Replies 2 ·
How do you find tension in three wires supporting a hanging mass?
- karli_m
- · Replies 13 ·
How can I design a circuit with specific voltage and resistance specifications?
- painfive
- · Replies 3 ·
How do I integrate (x^2)(e^x)sin(x) dx?
- Yegor
- · Replies 3 ·
Circle problem - perimater of a minor sector
- footprints
- · Replies 4 ·
Nonlinear Differential equation
- spacetime
- · Replies 5 ·
Done by parts integral and simplify
- Yegor
- · Replies 2 ·
How do I solve for tension in a wire with torque?
- slipF
- · Replies 8 ·
What is the mass of the bottom weight in this pulley system?
- bignasty
- · Replies 2 ·
Electric potential Energy/ electric potential
- Ksingh30
- · Replies 8 ·
Cavity Length of LASER and Interference
- Crumbles
- · Replies 1 ·
How Do You Solve Dimensional Analysis Problems in Physics?
- ][nstigator
- · Replies 17 ·
Proving inequalities with algebraic methods
- courtrigrad
- · Replies 6 ·
Why does a satellite at 160 km have greater total energy than at 144 km?
- krypt0nite
- · Replies 2 ·
For the first question: Calculate Initial Temp of Forging (76kg, 430J/(kg·°C))
- wlvanbesien
- · Replies 2 ·
Why is average velocity multiplied by 2 to get final velocity?
- Lovely
- · Replies 2 ·
What Does the Simiens Crew Hacker Message Mean?
- majinknight
- · Replies 5 ·
Collision Prediction: Speedy Sue vs. Slow-Moving Van in a Wet Tunnel
- chr1zis
- · Replies 3 ·
Solve Gauge Pressure Problem Step-By-Step
- einstein_from_oz
- · Replies 2 ·
Two charged conducting spheres hanging with 40° angle between threads
- Gogsey
- · Replies 5 ·
Calculating the Constant for Measuring Flow Rates in Open Channels
- Frustra8ed
- · Replies 4 ·
Electricity question that I thought I had but I don't
- schattenjaeger
- · Replies 12 ·
Laser beam diameter after diffraction and single-slit wavelength
- Kawrae
- · Replies 2 ·
Potential of a Linear Quadrupole
- Lomion
- · Replies 5 ·
Proving quadratic inequality and Schwarz's inequality
- courtrigrad
- · Replies 6 ·
What Is the Displacement of a Couple Walking Around a Lake?
- shawonna23
- · Replies 4 ·
Object's Velocity: Up, Highest, Down
- Gilly1998
- · Replies 7 ·
Sinking ocean liner velocity problem
- JasonL
- · Replies 2 ·
Find the Ek of a satilite in orbit
- Format
- · Replies 8 ·
Find the angle to the horizontal that the man must pull
- an_mui
- · Replies 2 ·
Why Doesn't My Siphon Work with Unequal Tube Sizes?
- CoolHandLuke
- · Replies 2 ·
Bouncing Particles on a smooth table
- Bucky
- · Replies 1 ·
Looking For College Professor To Interview For Senior Rail Gun Project
- Yapper
- · Replies 2 ·
How to Calculate the Mass of a Car Based on Its Kinetic Energy and Speed?
- Lovely
- · Replies 6 ·
How Much Anhydrous Magnesium Sulfate Remains After Dehydration?
- Raza
- · Replies 10 ·
Capacitance required to continue in a power lapse
- Jacob87411
- · Replies 2 ·
Standing wave on rope with three beads and mass on spring SHM
- SAIRA123
- · Replies 2 ·
Proving Irrationality of \sqrt[3]{3}
- SpatialVacancy
- · Replies 3 ·
Concrete wall: heat conduction and radiation at 0°C emissivity
- leftwingirl3773
- · Replies 2 ·
Solving Sound-Related Questions: Find the Answers!
- Markd
- · Replies 2 ·
How Does Sun's Luminosity Affect E Field Amplitude at Earth's Atmosphere?
- NathanC
- · Replies 2 ·
Calculating Acceleration and Time for Blood Flow in the Left Ventricle
- shawonna23
- · Replies 3 ·