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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Solving for r: Finding Electric Field When Gravitational Fields Equal Zero
- hippolyta2078795
- · Replies 3 ·
Orbital velocity of satellite 630 km above planet X9
- badicatte
- · Replies 4 ·
Why Is the Bottle Warmer on One Side?
- Valhalla
- · Replies 4 ·
Calculate power produced in each bulb
- lilkrazyrae
- · Replies 6 ·
How Do You Solve the Damped Oscillator Equation Using Newton's Second Law?
- whozum
- · Replies 9 ·
Newton's third law: action-reaction forces and the horse-cart system
- x0xgreenxeyezx0x
- · Replies 2 ·
What is the equation for calculating the Moon's gravity?
- lizzygurl88
- · Replies 3 ·
Charge And current Of Electric. Explain something?
- Mmx
- · Replies 2 ·
What Are the Correct Components of a 20km Displacement at N30°E?
- bobby_burke
- · Replies 1 ·
Showing velocity and centripetal acceleration for circular motion
- Lisa...
- · Replies 7 ·
What is the maximum speed the rock can have before the string breaks?
- nahya
- · Replies 5 ·
What is the natural frequency for a child's swing with 2.00 m long chains?
- CactuarEnigma
- · Replies 1 ·
Find q1 such that Force on Test Charge has no X-Component
- zekester
- · Replies 2 ·
How much heat is needed to melt ice and boil water?
- gomani
- · Replies 1 ·
Finding eigenvalues of a 3×3 matrix from the characteristic polynomial
- KoGs
- · Replies 2 ·
Calculating Average Power of a Ski Lift in 2.0 Minutes Using Tension in Cable
- neoking77
- · Replies 1 ·
Solve 1-D Motion Problem: Find Vo & a
- kfink85
- · Replies 5 ·
Calculating Melted Ice from a Lead Bullet
- AdnamaLeigh
- · Replies 1 ·
How Does the Bonding-Oscillator Model Explain Heat Capacity in Solids?
- alfredbester
- · Replies 1 ·
Work done as air expands in piston with spring
- Giuseppe
- · Replies 1 ·
Electrical and gravitational forces
- staceylu123
- · Replies 1 ·
Why does ω × r give the velocity of a particle in circular motion?
- Lisa...
- · Replies 2 ·
Can You Experience G-Forces in Space While Traveling at Light Speed?
- teken894
- · Replies 2 ·
How to convert 82.4 km/h to m/s
- kfink85
- · Replies 3 ·
Resistance vs. Temperature, etc.
- kkurutz
- · Replies 5 ·
Force constant of rear suspension of car
- Huskies213
- · Replies 1 ·
How Can I Build a High-Jumping Mechanical Jumper?
- neveax
- · Replies 1 ·
What Is the Ratio of Electrostatic Forces After Introducing a Third Sphere?
- Geekster
- · Replies 1 ·
Finding kinetic friction coefficient from acceleration on a ramp without mass
- Deathchariot
- · Replies 6 ·
Using Kepler's law for Mars orbit and Newton's gravity law
- vintagechic1251
- · Replies 4 ·
1d Kinematics formula question
- RedBurns
- · Replies 1 ·
Calculating Distance and Velocity: Solving Kinematics Problems
- bobby_burke
- · Replies 5 ·
Finding mass and spring constant from frequency changes
- gr3g1
- · Replies 2 ·
How do you solve latent heat and thermodynamics problems?
- gomani
- · Replies 5 ·
How High Will a Bullet Travel Fired Straight Up at 460 m/s?
- bobby_burke
- · Replies 3 ·
Proving vector identities with determinants
- Lisa...
- · Replies 10 ·
Online book with examples and exersices?
- rea
- · Replies 1 ·
Identifying Positive and Negative Charges Using Vector Components
- heelp
- · Replies 2 ·
The Wavelength of X-Rays Produced by 80kV Electrons
- UrbanXrisis
- · Replies 6 ·
Acceleration where velocity is changing
- tandoorichicken
- · Replies 3 ·
How Do Capacitors in Series and Parallel Circuits Distribute Charge?
- seang
- · Replies 1 ·
Minimum Speed for Steel Ball on Inclined Loop-the-Loop
- endeavor
- · Replies 5 ·
Forces on systems in equilibrium
- ebola_virus
- · Replies 1 ·
Making a 150V voltmeter and 10A ammeter from a 90Ω galvanometer
- lilkrazyrae
- · Replies 1 ·
Having trouble visualizing something about acceleration
- Byrne
- · Replies 2 ·
How Does Static Friction Determine Car Braking Acceleration?
- scavok
- · Replies 1 ·
Potential difference between two plates
- ktgee25
- · Replies 1 ·
How Do You Calculate the Density of Hydrogen Gas in a Cylinder?
- QueenFisher
- · Replies 3 ·
How Do Differential Equations Model Electric Circuits in Medical Devices?
- itzela
- · Replies 1 ·
Circular Motion and Friction of brass block
- nahya
- · Replies 3 ·
Calculate ymax(x) of Two Harmonic Waves at x = 2.21m
- jh24628
- · Replies 5 ·
Why is Coulomb's constant so much larger than the gravitational constant?
- staceylu123
- · Replies 1 ·
Why Is Instantaneous Velocity Equal to Average Velocity?
- urapeach
- · Replies 2 ·
Calculate Repulsive Force of 2 Protons in Atom
- lilkrazyrae
- · Replies 1 ·
Compton effect and visible light
- UrbanXrisis
- · Replies 5 ·
Wave takes 0.18 s from equilibrium to crest
- metalmagik
- · Replies 1 ·
Determine the energy required to accelerate a car
- Pepsi24chevy
- · Replies 7 ·
Thermal Properties/Heat Current
- verd
- · Replies 1 ·
Car Stopping Distance on a Wet Road
- Jacob87411
- · Replies 3 ·
How Does Gauss' Law Apply to Spherical Charge Distributions?
- Punchlinegirl
- · Replies 9 ·
Calculating Total Charge in a Charged Block and Spring System
- Punchlinegirl
- · Replies 7 ·
Pulley with rotational consideration
- endeavor
- · Replies 2 ·
Pressure change in sealed can heated from -23°C to 27°C
- QueenFisher
- · Replies 5 ·
And for my next trick more ideal gases questions. the joy.
- QueenFisher
- · Replies 2 ·
Finding charge on insulator sphere using electric field at 11 cm and 63 cm
- Punchlinegirl
- · Replies 4 ·
How Does a Steradian Relate to Degrees in 3D Measurements?
- dilan
- · Replies 6 ·
Moment of Inertia: Find 0.25-kg 4-Point Mass Square Rigid Body
- endeavor
- · Replies 2 ·
Calculating Angular Speed of a Falling Rod
- endeavor
- · Replies 4 ·
Motion Diagram and Gravity Graphing Question
- DefaultName
- · Replies 1 ·
How is voice demodulated in AM radio?
- knockout_artist
- · Replies 2 ·
What Current Corresponds to a 16 Ohm, 0.1 W Speaker?
- jakeowens
- · Replies 2 ·
Best Methods for Measuring Sound Travel in Solids, Liquids, and Gases
- SubFoxBlue
- · Replies 2 ·
What Angle Does the Charged Mass Form with the Vertical Sheet?
- Punchlinegirl
- · Replies 3 ·
Finding the E-Field between parallel plates
- thursdaytbs
- · Replies 2 ·
Why is the Mercury Displacement Different in the Left Arm of the Tube?
- vcc
- · Replies 3 ·
What factors affect the magnetic field strength of a current-carrying coil?
- duoheer
- · Replies 1 ·
Calculating if a Convertible Gets Wet from Dropped Bucket
- Byrne
- · Replies 1 ·
Is Angular Frequency Measured in Hertz?
- UrbanXrisis
- · Replies 1 ·
Why does light reflect off an elliptical mirror to focus at the other focal point?
- UrbanXrisis
- · Replies 7 ·
Archerfish water jet hitting beetle at minimum time
- Huskies213
- · Replies 1 ·
Skateboard accelerating down a hill: finding acceleration from distance in third second
- petuniac
- · Replies 5 ·
Spherical cloud of molecular nitrogen problem
- stunner5000pt
- · Replies 11 ·
Uniform Charge Density on a Plastic Sheet
- Solidification
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Solving Three Force Motion Problem: Find Third Force
- Huskies213
- · Replies 3 ·
Potential between two parallel charged conducting sheets
- Giuseppe
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Finding Period (T) from time (t)
- metalmagik
- · Replies 2 ·
Do I square acceleration when solving.
- mrserv0n
- · Replies 2 ·
How Does Faraday's Formula F=Ne Relate to Decomposing Monovalent Ions?
- UrbanXrisis
- · Replies 2 ·
What Are the Units of Electromagnetic Wave B?
- dowjonez
- · Replies 4 ·
How Much Work Is Needed to Move a Charge in an Electric Field?
- seang
- · Replies 2 ·
Finding voltages when a switch closes between initially charged capacitors
- villampaxo
- · Replies 3 ·
Calculating Terminal Velocity of Wooden Sphere
- Xenocite
- · Replies 1 ·
Force diagram for dynamics problem
- xc630
- · Replies 4 ·
What is Causing the Exponential Curve in My Velocity Squared vs. Radius Graph?
- FireLight07
- · Replies 4 ·
Force exerted on the floor by gymnast
- Huskies213
- · Replies 4 ·
What Is the Takeoff Speed of an Aircraft Based on a Watch's Angle?
- fuzzy
- · Replies 1 ·
Maxwell s equations observed in nature
- kant
- · Replies 2 ·
How Much Work to Tip a Cube into Unstable Equilibrium?
- endeavor
- · Replies 2 ·
Minimum distance for a car to stop with friction coefficient 0.156
- Xenocite
- · Replies 3 ·