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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Generator connected to transformer- Find angular speed of coil
- yankeekd25
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How Do You Calculate the Moment of Inertia for a Sphere Using Shell Integration?
- Zamba
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What is the density of the body in Archimedes' Principle problem?
- chmate
- · Replies 1 ·
Physics (resistance and lightbulbs
- Joycee
- · Replies 1 ·
Finding the Initial Charge on a Sphere Based on Coulomb's Law
- ppdjoy
- · Replies 1 ·
Calculating the Density Function for Redistribution of Melted Ice on Earth
- metgt4
- · Replies 2 ·
Solving Rolling Friction Homework: Angular Speed
- khangaroo
- · Replies 1 ·
Removing Resistors for Same Output Voltage
- TyErd
- · Replies 3 ·
Projectile motion of a fired cannonball
- roam
- · Replies 6 ·
Center of mass: What would make the truck tipover?
- okgo
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Can you calculate the average net force on a bullet embedded in wood at 320 m/s?
- Snoopy 103
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Does a 10% Change in Power Supply Voltage Affect a Balanced Wheatstone Bridge?
- munchy35
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Understanding Hooke's Law and SHM: A 4kg Mass on a Spring with k = 40n/m
- superaznnerd
- · Replies 2 ·
Calculating Current in a Single-Loop Circuit with Resistor and Capacitor
- reising1
- · Replies 9 ·
Roller coaster: kinetic energy
- jaded18
- · Replies 18 ·
Find the Electric Field strength
- Zorba
- · Replies 1 ·
Calculating the Moment of Inertia
- erok81
- · Replies 1 ·
Mixing Steam & Ice: Solving Qgain=-Qlost
- tanzerino
- · Replies 12 ·
Calculating Magnetic Flux in a Toroidal Inductor
- jhexp
- · Replies 2 ·
How Does the Human Eye Detect the Dimmest Starlight?
- Yroyathon
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Charged Particle Motion in a Magnetic Field
- Quantum_Grid
- · Replies 2 ·
Magnetic Field in a Rectangular Conducting Loop
- daimoku
- · Replies 2 ·
Solving a Model Car Oscillation Question: Find Vmax & Velocity
- SaRaH...
- · Replies 1 ·
Is the Calculation of a Radar Antenna's Height at 349 Meters Accurate?
- kirpal_06391
- · Replies 3 ·
Work and Kinetic Energy and speed
- mohd22
- · Replies 1 ·
How much heat is required to convert 1.0 kg of water at 85°C to steam at 118°C?
- kee23
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Textbook Solution Accuracy: Are Rounded Calculations Affecting the Final Answer?
- QED-Kasper
- · Replies 7 ·
Variation of Pressure with Depth problem
- Fantasmickat
- · Replies 1 ·
Calculating the Speed of a 796eV Electron
- skibum143
- · Replies 14 ·
Simple Torque Problem: Find the Torque and Force Exerted by Triceps Muscles
- putongren
- · Replies 1 ·
Torque due to gravity when T'net' = 0
- big_man4141
- · Replies 1 ·
Solve Pendulum Problem: Find Time Period
- The legend
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Find the wavelength in the lab of grating spectrometer?
- bamdavis
- · Replies 1 ·
Calculating the Distance to Reach 7.5% Weight Reduction of a Uniform Sphere
- Charanjit
- · Replies 3 ·
Carbon dioxide as an oscillator; normal modes.
- novop
- · Replies 9 ·
Cat on a Plank Torque Problem: How Close Can the Cat Walk Before the Plank Tips?
- Andrews989
- · Replies 4 ·
Pulling Easier: Torque & Toppling Explained
- troy611
- · Replies 3 ·
Magnetism: Solving Question on Induced E in Windings of Coil
- tayi
- · Replies 1 ·
Calculate Proton Speed for Earth Magnetic Equator - Magnetism Question 2
- tayi
- · Replies 1 ·
Electrostatic Potential Question - Basic physics
- Zubilaemo
- · Replies 16 ·
Universal gravitation - radius?
- Mirole
- · Replies 2 ·
Finding the current in a circuit
- kliker
- · Replies 5 ·
Nichrome Wire Brightness in Series: A Conductivity Homework Problem
- thereddevils
- · Replies 2 ·
Finding Phase Constant for Harmonic Oscillator
- GatorJ
- · Replies 2 ·
Conservation of Energy in a Cart Falling from a Table
- GreenPrint
- · Replies 1 ·
Understanding Camera Zoom Lens Calculations
- tuomas22
- · Replies 6 ·
Number of electrons per unit volume
- thereddevils
- · Replies 3 ·
What is the Resistance of R1 in a Dual Range DC Milliammeter?
- thereddevils
- · Replies 1 ·
Determination of a magnetic field with kinematics
- scoldham
- · Replies 6 ·
Faraday's Law - Spatial Varying Magnetic Field Problem
- scoldham
- · Replies 10 ·
How Do You Calculate the Change in Velocity for a Van Turning a Corner?
- koat
- · Replies 7 ·
How Does Changing Resistance Affect Induced Current Direction in Nested Loops?
- meganw
- · Replies 1 ·
Current & Voltage Homework: Find Current & PD @ X,Y
- TyErd
- · Replies 9 ·
Understanding Pulley Acceleration: Newton's Third Law and Mass Ratios"
- madah12
- · Replies 3 ·
What is the direction of current in relation to the uniform magnetic field B?
- Physics197
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The Drag Force at Terminal Velocity
- roam
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Physics/mechanics, forces accelaration
- gaz3992
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What Is the Mass of the More Massive Block?
- kdizzle711
- · Replies 8 ·
Induced EMF in Changing B Field: A Paradox?
- pythagoras88
- · Replies 2 ·
Magnetic field above rotating disk
- theneedtoknow
- · Replies 1 ·
Block on an inclined plane between two strings
- paulius005
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What Is the Peak Voltage Across the Capacitor?
- hitman0097
- · Replies 2 ·
Brass Compression: Solving For ΔL
- kboykb
- · Replies 1 ·
How Can I Calculate the Volume of Soil with a Given Charge?
- satchmo05
- · Replies 1 ·
Rotational Kinetic Energy of merry-go-round
- fleabass123
- · Replies 1 ·
Angular Velocity of Ballistic Cylinder After Bullet Impact
- Ron Burgundy
- · Replies 1 ·
Work Done on Trunk by Applied Force P: 8.83 J
- juggalomike
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Open Circuit Voltage, Thevenin Equivalent
- hbweb500
- · Replies 2 ·
Is V = xy the correct potential function for this geometry?
- satchmo05
- · Replies 5 ·
Is there an equation for horsepower?
- kriegera
- · Replies 3 ·
How far below the aiming point does the messy food strike Chretien's image?
- mandi_ah
- · Replies 5 ·
What is the angular acceleration of a rotating mass attached to a string?
- anti404
- · Replies 7 ·
Time on watch dependent on air temperature?
- kriegera
- · Replies 6 ·
Calculating Output Voltage in Complex Voltage Divider
- TyErd
- · Replies 7 ·
Newton Laws - Finding a constant
- bluewood
- · Replies 4 ·
Calculating Moment of Inertia for a Pulley with Attached Mass
- Keithkent09
- · Replies 5 ·
Finding the Minimum Mass for Plunger-Spring Contact
- awiest82
- · Replies 1 ·
Interference due to a thin film
- Jimmy25
- · Replies 11 ·
EMF or Energy: Puzzling Out the Difference
- mushroom993
- · Replies 1 ·
Localizing an Object Using a Crystal Ball
- fluidistic
- · Replies 16 ·
Angular, linear velocity & centripetal acceleration
- GreatEscapist
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What is the angle theta between vectors
- juggalomike
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How do you determine the image size formed by a convex lens?
- kriegera
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What is a formula for ENF that relates I (current) and H (Henry) ?
- Arshad_Physic
- · Replies 2 ·
Solving Thevenin Equivalent with 1 Point & Ground
- Mugged
- · Replies 3 ·
Calculating Capacitance for Non-Uniform Dielectric: Finding the Right Formula
- godtripp
- · Replies 2 ·
Velocity of sound in Carbon Diox vs. Air
- kriegera
- · Replies 9 ·
Magnification due to a Diverging Lens
- davidepalmer
- · Replies 8 ·
The force between two conductors (Duffin)
- Smith987
- · Replies 1 ·
Finding current in circuit using Kirchoff's Rules
- Zorba
- · Replies 3 ·
Find the rotational inertia of the assembly. (Rod and Particles)
- Wm_Davies
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Confused on amperes in primary & secondary circuits
- kriegera
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Why Is My Calculation of Impulse Twice the Correct Value?
- SmokeyBear
- · Replies 2 ·
What Is the Correct Internal Temperature of a Sealed Box with a Lightbulb?
- UMDstudent
- · Replies 3 ·
Circuit Analysis: Finding Current, Charge, and Voltage with a Flash Unit
- ~christina~
- · Replies 3 ·
How to Calculate the Series Resistor for a Potentiometer Measuring 2.5 mV?
- thereddevils
- · Replies 1 ·
Solving a Similarity Problem - Find AB
- Misr
- · Replies 2 ·
V-I Characteristics of Forward/Reverse Bias Diodes
- TyErd
- · Replies 5 ·
How Does Special Relativity Affect the Mass of Colliding Particles?
- coppersauce
- · Replies 1 ·
Maximize the magnetic field in a solenoid
- anonymousphys
- · Replies 1 ·