Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Energy required to fully ionize Uranium
  • doppeled
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Calculating Capacitance: Irms and Angular Frequency Data Analysis for Homework
  • k31453
  • · Replies 29 ·
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Angular momentum and acceleration
  • Felafel
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P.S. I did it on paperPolynomial Division: 3x^3-5x^2+10x+4 / 3x+1
  • eddievic
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Stuck with an acceleration problem
  • Psyguy22
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3
Analyzing a Spring-Mass-Damper System: Is the System Oscillating?
  • reuben19
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Find the angle between two vectors
  • jamesbrewer
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Calculating the Mass Difference for Beta Plus Decay: 13N → 13C + e+ + ve
  • sunrah
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Vertical acceleration due to car going over speed bump
  • Complete
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Calculating Rest Mass of Original Object in Inelastic Explosion
  • ftbf22
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Spring Potential Energy problem: Where did I go wrong?
  • jmosque
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Acceleration of a system with 2 Blocks and a Wedge
  • goukishin
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Prove v = u(ktu^3 + 1)^1/3 & x = (1/2ku^2)((ktu^3 + 1)^2/3 - 1)
  • SherlockOhms
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2
Calculating Work and Power on a Block on an Inclined Plane
  • SherlockOhms
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Acceleration straight line graph
  • xzibition8612
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3
Can the spacing of rods affect the weight needed for applied force?
  • patehi
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Average speed of person walking problem
  • xzibition8612
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Resistance and Radii Relationship
  • anshuman3105
  • · Replies 7 ·
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7
Antenna Wavelength - double-slit interference
  • Koro21
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5
How to Find Pressure at Various Points in a Liquid-Filled Tank with a Tube?
  • Pandaphys
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Simple Harmonic Motion with Initial Velocity: Calculating Speed and Time Period
  • SherlockOhms
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2
Graphical analysis of a damped harmonic system
  • freshcoast
  • · Replies 15 ·
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15
Heat energy from Enthelpy of formation
  • Cogswell
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1
Object oscillates such that displacement is x = (.222)sin(314t)
  • jorgegalvan93
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Circuits involving Kirchoff's law
  • zeralda21
  • · Replies 10 ·
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10
How Do You Calculate the Speed and Retarding Force in a Momentum Problem?
  • TheRedDevil18
  • · Replies 3 ·
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Is this simple harmonic motion?
  • faiz4000
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2
Finding what fraction of molecules have speeds over a certain value
  • Erubus
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2
Determine the Magnitude of the Time Rate of Change of Angular Momentum
  • Northbysouth
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F I pinch hold a book, with 6N on either side
  • dgamma3
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Find the angular acceleration of a hinged beam
  • UselessLadder
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3
Determine Total Work done by the Force
  • Northbysouth
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1
Luminosity & flux equations confusion
  • Flucky
  • · Replies 5 ·
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5
Magnet dropped down a copper tube experiment
  • guay
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4
Forces at an angle to one another.
  • SherlockOhms
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4
How Do You Calculate the Magnitude of Vector C in Vector Subtraction?
  • x31fighter
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Resistor and power output varying with a distance x
  • Jonnyto
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Block sliding down wedge problem
  • freshcoast
  • · Replies 8 ·
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Voltage and energy in capacator system
  • barryj
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Collisions between two balls in 2d-motion
  • zeralda21
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Total Energy of a Particle After Discharging a Photon in a Moving Frame
  • buc030
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Relating Path Difference and Intensity in Radar Signals
  • Saitama
  • · Replies 17 ·
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Energy to separate charge +e and -e
  • Saxby
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Simple Maxwell Equation question
  • ZedCar
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4
Question in Energy and Energy Transfere
  • Some body
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Circular Motion/Gravitational Acceleration Help Needed
  • FLIHGH
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5
Solving the Elevator's Acceleration: Examining Newton's Laws
  • Vipercobra
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Entropy problem involving saltwater uptake into a cell
  • GoGoGadget
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Spring Problem with Possible Conservation of Energy Concept ?
  • SChiO
  • · Replies 8 ·
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Solving Elastic Collision Problems
  • definition
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RL circuit inductive reactance problem
  • skate_nerd
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Need help, mechanics problem with pulleys and tensions
  • Sleepycoaster
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Pigs in space and circular orbit
  • swevener
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What Is the Electrical Field Magnitude at Each Point Due to the Charges?
  • baird.lindsay
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Force of a water flow through a U-shaped pipe
  • zeralda21
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Static equilibrium - girl on diving board
  • smashd
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LC circuit, space between dielectric plates
  • skate_nerd
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Grade 11 Sound Intensity Question
  • Zarquad
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Power in the components of an RC circuit as a Function of time
  • physninj
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What is the total resistance of this circuit?
  • MJay
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Relativity and the speed of light
  • mrcotton
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Calculating Earth's Heat Loss: How to Find the Rate and Total Loss in One Hour
  • kingstar
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Does this question give enough to be solved?
  • cjhockey35
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How Does Relativity Affect Time and Space Measurements Between Events?
  • ZanyCat
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Gravitational potential energy from ∞ to r
  • Saix7
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Why Do P=IV and P=I^2*R Yield Different Results in This Case?
  • pietastesgood
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I with Fluid systems question
  • StudyNinja1
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What is the current relationship between resistors in parallel?
  • 3inst3in
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Vertical Projectile Motion Problem
  • TheRedDevil18
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Plotting & Verifying Air Pressure Reduction over Time
  • hbuk
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B field inside solenoid as a result of iron rod
  • CAF123
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AP Physics C E&M: Struggling with Homework Before Exam
  • sarvesh0303
  • · Replies 6 ·
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FBD of Hot Air Balloon and Buoyancy
  • zeralda21
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Finding the current and the voltage across each resistor
  • Lopez
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How Do You Calculate the Electric Field from the Electric Potential V=4x²?
  • Kartik.
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Multi-loop RC circuit, 2 batteries, 7 resistors, 1 capacitor
  • physninj
  • · Replies 11 ·
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Elastic collision between two moving objects
  • captainmustard
  • · Replies 3 ·
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AP Physics E&M MC: Electric Field, Induction, LC Circuit
  • pietastesgood
  • · Replies 17 ·
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Young's Two Slit Experiment Question
  • Von Neumann
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How Is Maximum Kinetic Energy Calculated for an Electric Bicycle with a Rider?
  • Dongorgon
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Current Carrying Wire in Magnetic Field
  • DeChance
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Displacement of a Pendulum to find Work done by Force
  • shinify
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Pulley problem with moment of inetia
  • Iansno1
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AP Physics MC Questions: Orbits, Momentum
  • pietastesgood
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What is the maximum velocity of a motorbike on a curved track?
  • Saitama
  • · Replies 38 ·
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Capacitors charged to voltage in parallel
  • Ineedahero
  • · Replies 13 ·
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Thin film interference - Minimum thickness
  • Saitama
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Calculate Heat Energy Req'd for 0.1 kg Ice -30°C to 0°C
  • kingstar
  • · Replies 3 ·
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Physics Magnetism: Ring Behavior When Switch is Closed
  • clovergogo
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Impulse and momentum question, relates to Biomechanics
  • urbano
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Two Point Charges and Magnetic Field
  • Kashuno
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Constraints on Acceleration Given Endpoints of Motion
  • Kakashi24142
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Verticle launch velocity given only time.
  • Acadeus
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Point mass strikes thin rod: angular momentum
  • nelkypie
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How Do Spring Constants Affect Artery Wall Pressure in Medical Devices?
  • GoGoGadget
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Calculate the tension force of 3 supporting cables that hold a crate
  • plazprestige
  • · Replies 22 ·
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Quantum Tunnelling: Where Does Energy Go?
  • mrcotton
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Moment of inertia and work problem
  • coolbyte
  • · Replies 4 ·
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Heating gas at constant volume/pressure
  • CAF123
  • · Replies 1 ·
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Wavefunction boundary condition solve for k
  • zhillyz
  • · Replies 3 ·
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3