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.
Solving a Dynamics Problem: Angle & Tension Calculations
  • chroot
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Can Chladni Figures Be Formed on Oscillating Plates?
  • tudur
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2
Finding Distance in Plan 1,2,3 & 4: Minimizing Cost
  • dagg3r
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2
How do you calculate the effects of crosswinds on a plane's velocity?
  • Cummings
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2
Problem:help my bus is on a cliff
  • ratt10mm
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4
Thorny Newtonian motion of a spaceship
  • LiquidPenguin
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1
Where Does the Pi Come From in Variable Acceleration Problem?
  • frankR
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Calculate the energy and wavelength of the photon
  • shezill
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4
How Do You Simplify (i-3)^4 to a+bi Form?
  • Wasper
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3
What is the Angle of the Man's Path Relative to the Water on a Moving Ship?
  • physics=headache
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3
How Can Parabolic Shooting Be Optimized for Minimum Travel Time in a Game?
  • xev
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5
Pipeline Path and Town Radius: Do I Need to Reroute? | Explanation Included
  • ireallyneedhelp
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2
Understanding Acceleration: What Direction Does it Really Have?
  • omgwtf
  • · Replies 8 ·
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8
Physics Confusion: The Ball's Trajectory in an Upward Throw Explained
  • omgwtf
  • · Replies 4 ·
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4
Calculating Heat Loss and Temperature Change in a Heated Object
  • Justanotherstudent
  • · Replies 4 ·
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4
Another question about projectile motion
  • physics=headache
  • · Replies 7 ·
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7
Algebra II tossed up with Physics
  • clueless
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3
How Does Wavelength Affect Scattering Angle in Light?
  • Dx
  • · Replies 9 ·
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9
How Do I Calculate the Height of a Fence in Projectile Motion?
  • physics=headache
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2
Understanding Hooke's Law: Sample Problems and Solutions
  • meikamae
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2
How Do You Calculate the Charge on the Inner Sphere Using Gauss's Law?
  • frogstomp_theory
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2
Some weird particle problem I invented. Long read.
  • frankR
  • · Replies 4 ·
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4
Discover the Near Point: Understanding Optical Instruments and Clear Vision
  • Dx
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2
Classical thermodynamics problem.
  • Kalimaa23
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2
Electric Motors - Which way the force goes.
  • Cummings
  • · Replies 9 ·
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9
Understanding Hooke's Law: A Simplified Guide for High School Students
  • meikamae
  • · Replies 3 ·
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3
What volume does this sample occupy?
  • Dx
  • · Replies 4 ·
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4
Youngs and single slit experiments
  • Dx
  • · Replies 2 ·
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2
Angular seperation between diff wavelengths
  • Dx
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2
Calculating Average Magnetic Field for a 15 mW 2mm Laser Beam
  • Dx
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2
How Do You Calculate the Sun's Average Power Output?
  • Dx
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2
I have enrolled in a Trigonometry Class in College.
  • zeronem
  • · Replies 7 ·
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7
Conversion factor from amperes to milliamperes
  • dynamic998
  • · Replies 7 ·
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7
How Does Light's Wave Nature Affect Double Slit Experiment Results?
  • Dx
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2
What is the mass of a gas sample at STP?
  • Dx
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3
Calculating Frequency Using Doppler Effect Formula
  • Dx
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4
The Relationship Between Celsius and Fahrenheit Temperatures
  • Dx
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3
Forces related question (it's a problem)
  • Moontears
  • · Replies 3 ·
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3
When you double your distance from a sound source
  • Dx
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2
EM waves; max value of electric field
  • Dx
  • · Replies 2 ·
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2
Help Me Ace My Physics Final: Solving 12 Difficult Problems
  • Caldus
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3
A proton has a speed of 3 x 10^6 m/s
  • Dx
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Tension of a rubber cord problem
  • stuffy
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2
How do you determine the direction of velocity?
  • Caldus
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2
Measuring the Spring Constant of Two Cords for a Slingshot Apparatus
  • colonel
  • · Replies 3 ·
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3
Calculate (a) the total work done by the gas in the process
  • msdjohnson
  • · Replies 24 ·
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24
Graphing Damped Oscillations with Friction on a Spring - A Guide
  • tudur
  • · Replies 8 ·
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8
How Do You Calculate the Fringe Separation in Young's Double Slit Experiment?
  • Dx
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2
How Does Magnification Affect Object Distance in Lens Optics?
  • Dx
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4
What is the theory of general and special relativity
  • eastsidecrew
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2
Does a Radio Signal Count as a Physical Connection in Competition Rules?
  • chuck7
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2
Can this info get a spring constant and a drop height
  • griokin
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2
Where Should a Rectangular Plate Be Suspended for Equal Oscillation Periods?
  • discoverer02
  • · Replies 5 ·
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5
How Much Does It Cost to Run Household Appliances?
  • Dx
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2
Are exp(ikx) and exp(-ax^2) Eigenfunctions of P^2?
  • jonnylane
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2
Elevator Kinematics: Calculating Acceleration with Pulley and Man
  • ant284
  • · Replies 10 ·
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10
Proving Babinet's Principle w/ Superposition & Diffraction - Help Needed
  • KillaMarcilla
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2
Calculating the Earth's Ocean Volume: Step-by-Step Guide | Simmon
  • Simon_Harmon
  • · Replies 8 ·
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8
Do all EM waves travel through a vacuum?
  • Dx
  • · Replies 5 ·
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5
Simple Pendulum Oscillation: Answers and Explanations for Common Test Questions
  • Dx
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Magnetic fields and current flows problem
  • Dx
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Understanding SHM: Velocity of a Mass on a Spring at Max Displacement
  • Dx
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Simple pendulum and angular position
  • Will
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2
Electron in magnetic field and TV
  • S.P.P
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5
Electric field/charge woed problem
  • Dx
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2
How Do You Calculate Capacitance and Electric Potential?
  • Dx
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2
How Far is the Proton from the Electron in an Electric Field?
  • Dx
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2
Ugh i suck at this and need your help
  • physicsismylife
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3
What is the power input to the plant?
  • JM2107
  • · Replies 8 ·
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8
Effects of a massive object on light and its relation to the 1919 Eclipse
  • JM2107
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2
Solving for Temperature and Kinetic Theory | Answers to Key Questions
  • Dx
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2
How Does Isothermal Expansion Affect Work and Entropy in an Ideal Gas?
  • Dx
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Electric current flowing in a nichrome wire
  • Dx
  • · Replies 4 ·
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4
Sites containing original problems
  • Will
  • · Replies 6 ·
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6
Rotational Dynamics/Angular Momentum
  • discoverer02
  • · Replies 2 ·
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2
Maximizing Intensity of Transmitted Light in Polarization Disks
  • Will
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3
Is anyone taking there science GCSE`S this year,?
  • Viper
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2
What Is the Equilibrium Temperature of Copper in Water?
  • Dx
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2
Is there a formula for energy associated with x-rays?
  • dagg3r
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2
Calculating Radioactivity: 4000 cpm to bq
  • dagg3r
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2
Explaining the law of conservation
  • miyuki9
  • · Replies 2 ·
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2
Synthesizing Glucose from Pyruvate: Stuck at 3-phosphoglyceroylphosphate
  • HazZy
  • · Replies 7 ·
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7
Electrical Circuit Analysis with C++ Issues
  • bishwa
  • · Replies 4 ·
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4
Water Boiling Temperature on Mt. Kilimanjaro (5895m): The Science Behind It
  • BEVIN
  • · Replies 2 ·
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2
What is the change in KE of the proton?
  • Dx
  • · Replies 4 ·
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Last-minute concept problems (before exams)
  • Flame
  • · Replies 15 ·
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15
Seriously stumped by rotational motion
  • discoverer02
  • · Replies 28 ·
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28
Solving a Simple Vector Problem
  • Einstein
  • · Replies 2 ·
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2
What is the charge on 1kg of protons?
  • Dx
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2
Why Does a Charged Particle in a Magnetic Field Perform Circular Motion?
  • KLscilevothma
  • · Replies 3 ·
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3
Optics Problems: Concave Mirrors and Refraction Calculations
  • Prime
  • · Replies 9 ·
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9
Electric charge and elctric filed
  • Dx
  • · Replies 2 ·
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2
How Long Will It Take for the Sun to Convert 12% of Its Hydrogen into Helium?
  • ant284
  • · Replies 4 ·
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Solving a Spinning Disk Physics Exam Problem
  • discoverer02
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3
How Does Impulse Affect the Motion of a Rotating Rod on a Frictionless Table?
  • discoverer02
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Solving a Dog Whistle Sound Problem: Finding the Frequency of Brand X
  • Dx
  • · Replies 2 ·
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Coal fired plant Thermodynamics help
  • Dx
  • · Replies 6 ·
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Thermal conductivity twice that of brass
  • Dx
  • · Replies 5 ·
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Problem with photoelectric effect
  • ant284
  • · Replies 4 ·
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4
Can Time Travel Ethics and Black Hole Physics Coexist?
  • eastsidecrew
  • · Replies 2 ·
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