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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Intersecting Planes and Solving Systems of Equations
- StonedPanda
- · Replies 2 ·
Particle Equilibrium: Solving for the Minimum Angle in a Roller System
- Artifex
- · Replies 2 ·
Logic Questions in Physics: Falling Rocks and Horse and Buggy
- dajugganaut
- · Replies 7 ·
How does the PE of the activated complex compare to that of the reactants?
- BlackCatXIII
- · Replies 5 ·
Solving Physics Problems: Forces and Acceleration
- 1moretry
- · Replies 3 ·
Solve Lead Sinker Problem: Volume & Weight Calculation
- daisyi
- · Replies 2 ·
Solve Kinematics Problems: Pentium 1 Computer, Roof Tile, and Speed Trap
- dajugganaut
- · Replies 4 ·
Calculating Force Needed to Hold Down a Hydrogen-Filled Balloon
- daisyi
- · Replies 4 ·
Calculating Average Pressure in Rifle Barrel from Bullet Launch Speed
- daisyi
- · Replies 3 ·
How to Calculate Charge and Potential Difference in Parallel Capacitors?
- supermenscher
- · Replies 2 ·
Calculate Pressure Difference: Water Flow Through Tubes of Different Radii
- daisyi
- · Replies 2 ·
What Calculations Are Needed to Achieve Equilibrium in These Statics Problems?
- Aaron
- · Replies 3 ·
Object sliding down inclined plane
- akatsafa
- · Replies 3 ·
Electric Field Question: Finding Zero Point Between Two Charges on Y-Axis
- thebigbluedeamon
- · Replies 5 ·
Computer thrown from window, falling tile, and car deceleration problems
- dajugganaut
- · Replies 7 ·
Electrostatic and gravitational potential energy question
- Sigma Rho
- · Replies 2 ·
How Do Toy Telephones and Stethoscopes Transmit Sound?
- quarky
- · Replies 2 ·
Really good general college physics book?
- akatsafa
- · Replies 9 ·
What Are Common Mistakes in Calculating Magnetic Forces and Particle Velocities?
- supermenscher
- · Replies 2 ·
How Does Acceleration Affect the Frequency of Sound Heard by an Observer?
- ambuj123
- · Replies 3 ·
Frequency of EM field, magnetic flux angle, and RL circuit current
- supermenscher
- · Replies 3 ·
Solving for Distance and Speed in Physics Problems
- winterma
- · Replies 2 ·
Calculating Potential Energy Change on an Incline - What am I doing wrong?
- winterma
- · Replies 3 ·
Question on 1 problem graphical determinations
- terpsgirl
- · Replies 2 ·
Induced Voltages and Inductance
- Alice-Shallom
- · Replies 2 ·
Potential energy between two objects
- Zorodius
- · Replies 5 ·
Why is graphical best-fit line more accurate for average velocity?
- terpsgirl
- · Replies 2 ·
Saving Energy on Long-Distance Flights: Calculating Mass Impact
- akatsafa
- · Replies 2 ·
What is the Formula for Calculating Angular Deceleration in College Physics?
- winterma
- · Replies 2 ·
What Is the Final Temperature in a Copper Calorimeter Experiment?
- lollypop
- · Replies 13 ·
Completely stable nucleus question
- Sigma Rho
- · Replies 3 ·
Integration by partial fractions
- Spectre32
- · Replies 5 ·
Quantum mechanics in atoms question
- jazzchan
- · Replies 2 ·
How Does Car Acceleration Work on Inclines and Flat Surfaces?
- terpsgirl
- · Replies 2 ·
Angle of incidence and emergent ray through a glass plate
- franz32
- · Replies 2 ·
Find the coefficient of kinetic friction between the block
- nelone
- · Replies 3 ·
Can Palindromes in Base 7 be Divisible by 8?
- 1+1=1
- · Replies 6 ·
Why Does Current Flow Opposite to Electron Movement in a Cathode Ray?
- expscv
- · Replies 2 ·
Are Even Perfect Numbers Always Triangular?
- 1+1=1
- · Replies 2 ·
Are EM Waves Generated by Standing Charges?
- jrt101
- · Replies 4 ·
Equilibrium of a Block on a Frictionless Table and Wall: An Analysis
- e(ho0n3
- · Replies 5 ·
Rotational Inertia of a Rod Falling and Slipping
- e(ho0n3
- · Replies 10 ·
Slightly off on the answer to a problem, but why?
- Brianjw
- · Replies 2 ·
Solving Torque and Tension for a Cylindrical Hoop with Mass and Radius R
- e(ho0n3
- · Replies 7 ·
How Do the Laws of Vibrating Strings Affect Sound Production?
- franz32
- · Replies 2 ·
Photoelectric Effect and light frequency
- wikidrox
- · Replies 3 ·
C program - trouble with IF statement
- Math Is Hard
- · Replies 7 ·
Integration by parts problem
- Spectre32
- · Replies 3 ·
Calculating spring tension for a torque wrench design with gear disconnect
- flashlaser
- · Replies 1 ·
Check Max Speed of Car on Circular Path Without Skidding
- nelone
- · Replies 2 ·
Calculating Buoyancy: Determining Ice Area to Support 3000lb Car
- daisyi
- · Replies 2 ·
Calculating Boat Submersion and Fish Capacity
- daisyi
- · Replies 5 ·
Uniform circular motion of a rolling object
- akatsafa
- · Replies 5 ·
What Is the Difference Between Potential and Potential Energy?
- Sigma Rho
- · Replies 8 ·
What information does Coulomb's law give us?
- Sigma Rho
- · Replies 4 ·
What is the magnitude of the horizontal force
- nelone
- · Replies 2 ·
How do nonconservative forces affect work done in a round trip?
- me_me
- · Replies 2 ·
What is Born Approximation? Understanding Its Basics
- ottjes
- · Replies 2 ·
Tension in elevator cable with upward acceleration
- nelone
- · Replies 4 ·
Capacitor problem, easy but just can't seem to get it
- supermenscher
- · Replies 3 ·
Solving Problem on Capacitor - India IIT Prep
- ambuj123
- · Replies 2 ·
Finding Final Velocity of a Block Sliding Down a Ramp with Friction
- akatsafa
- · Replies 6 ·
Coriolis Effect on Fast Projectile
- e(ho0n3
- · Replies 2 ·
Escape velocity from solar system with Earth's orbital velocity
- e(ho0n3
- · Replies 3 ·
How Much Ice Melts When Cooling an Enzyme Sample in an Ice Bath?
- winston0064
- · Replies 2 ·
Calculate the Movement of a Rowboat When Two People Exchange Seats
- robyfan
- · Replies 2 ·
How Do I Solve These Two Circuit Problems?
- supermenscher
- · Replies 2 ·
Resistance of semi conductor decreases as ionisation increases
- lakshmi
- · Replies 2 ·
Sum of i^2/(4^i): 0 to Infinity
- Johnny Leong
- · Replies 9 ·
Solving for (ab,ac,bc) = 1: Where Am I Going Wrong?
- 1+1=1
- · Replies 2 ·
How can I find the moment of inertia for a simple shape?
- Zorodius
- · Replies 10 ·
Propeller design for measuring spin rate vs wind angle of attack
- jessiem
- · Replies 2 ·
Electric field of discrete point charges
- mborn
- · Replies 3 ·
Why Is My Projectile Motion Calculation Incorrect?
- akatsafa
- · Replies 4 ·
How many positive integers are not divisble by 12 or 15?
- 1+1=1
- · Replies 7 ·
Rod, Clay, and an Inelastic Collision
- e(ho0n3
- · Replies 5 ·
How Much Energy Is Released in a Three-Part Explosion?
- PhysicsBeginner
- · Replies 2 ·
Electromagnetics Problem: Surface Integral of A(z) over a Hemispherical Surface
- Firefox123
- · Replies 17 ·
How much power does water flow generate in hydroelectric stations?
- Etak
- · Replies 2 ·
Centripetal acceleration calculation
- akatsafa
- · Replies 2 ·
Finding tangential and angular velocity of a block on a string
- akatsafa
- · Replies 2 ·
Sound Intensity: dB vs dB(A) - What's the Difference?
- EIRE2003
- · Replies 3 ·
Parallel Plates Different areas
- junglepeanut
- · Replies 7 ·
SHM displacement equation with amplitude 2 m and frequency 3 Hz
- redshift
- · Replies 2 ·
Logarithmic Equation: Simplifying with Easy Quick Method
- Slicktacker
- · Replies 3 ·
Can Someone Explain Statics and Torque for an Applied Maths Exam?
- Mutant_Fruit
- · Replies 6 ·
Stopping time for a braking car and tension in a string whirling a stone
- terpsgirl
- · Replies 3 ·
Angular acceleration and velocity for a gymnast performing a somersault
- Kreativitie
- · Replies 2 ·
How many outcomes are in the sample space for these probability problems?
- franz32
- · Replies 2 ·
I have a question I with (acceleration)
- tee1
- · Replies 2 ·
Rod, Putty, and an Inelastic Collision
- e(ho0n3
- · Replies 9 ·
How to Solve a Complex Rotation/Torque Problem for a Grindstone?
- Brianjw
- · Replies 6 ·
Rotational Imbalance Forces: Solving the Problem
- e(ho0n3
- · Replies 12 ·
Solving Ball and String Problem with Components
- akatsafa
- · Replies 5 ·
Having lots of trouble with a few problems that are due tonight
- supermenscher
- · Replies 3 ·
How Do You Calculate Velocity and Distance in Physics Problems?
- terpsgirl
- · Replies 2 ·
Finding capacitance and plate area with dielectric material
- supermenscher
- · Replies 3 ·
How Many Base-Out Configurations Exist in Sleazeball?
- franz32
- · Replies 6 ·
Why Is My Electric Potential Calculation Incorrect?
- supermenscher
- · Replies 2 ·