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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Electric field conductor problem
- KLscilevothma
- · Replies 2 ·
The Starship Enterprise (variable acceleration problem) part II
- frankR
- · Replies 2 ·
Width of spectrum from diffraction grating at second order
- Velocity
- · Replies 2 ·
I used Sin instead of Cos for a triangle.
- frankR
- · Replies 4 ·
The Starship Enterprise (variable acceleration problem)
- frankR
- · Replies 6 ·
How Does Relativity Affect the Length and Orientation of a Moving Rod?
- frankR
- · Replies 5 ·
Why do balloons move forward when a car accelerates?
- yakabod
- · Replies 5 ·
Rope tension and swing angle for a student on a 10-meter rope
- chroot
- · Replies 3 ·
Can Chladni Figures Be Formed on Oscillating Plates?
- tudur
- · Replies 2 ·
Finding lengths for four network plans connecting points P, Q, R
- dagg3r
- · Replies 2 ·
How do you calculate the effects of crosswinds on a plane's velocity?
- Cummings
- · Replies 2 ·
Which way to walk on a bus on a cliff to avoid falling
- ratt10mm
- · Replies 4 ·
Thorny Newtonian motion of a spaceship
- LiquidPenguin
- · Replies 1 ·
Where Does the Pi Come From in Variable Acceleration Problem?
- frankR
- · Replies 11 ·
Calculate the energy and wavelength of the photon
- shezill
- · Replies 4 ·
How Do You Simplify (i-3)^4 to a+bi Form?
- Wasper
- · Replies 3 ·
What is the Angle of the Man's Path Relative to the Water on a Moving Ship?
- physics=headache
- · Replies 3 ·
Minimum travel time angle for parabolic projectile motion
- xev
- · Replies 5 ·
Does a pipeline on y=2x+20 need to avoid a town at (50,0) with 5km radius?
- ireallyneedhelp
- · Replies 2 ·
Does acceleration have a direction or just a sign?
- omgwtf
- · Replies 8 ·
Ball thrown upward at 29.4 m/s: why calculate beyond 3 seconds?
- omgwtf
- · Replies 4 ·
Calculating Heat Loss and Temperature Change in a Heated Object
- Justanotherstudent
- · Replies 4 ·
Stunt man jumping between buildings 4.9 m apart
- physics=headache
- · Replies 7 ·
Algebra II tossed up with Physics
- clueless
- · Replies 3 ·
How Does Wavelength Affect Scattering Angle in Light?
- Dx
- · Replies 9 ·
How Do I Calculate the Height of a Fence in Projectile Motion?
- physics=headache
- · Replies 2 ·
Understanding Hooke's Law: Sample Problems and Solutions
- meikamae
- · Replies 2 ·
How Do You Calculate the Charge on the Inner Sphere Using Gauss's Law?
- frogstomp_theory
- · Replies 2 ·
Some weird particle problem I invented. Long read.
- frankR
- · Replies 4 ·
Classical thermodynamics problem.
- Kalimaa23
- · Replies 2 ·
Electric Motors - Which way the force goes.
- Cummings
- · Replies 9 ·
How do you explain Hooke's Law to someone without physics background?
- meikamae
- · Replies 3 ·
What volume does this sample occupy?
- Dx
- · Replies 4 ·
Youngs and single slit experiments
- Dx
- · Replies 2 ·
Angular seperation between diff wavelengths
- Dx
- · Replies 2 ·
Calculating Average Magnetic Field for a 15 mW 2mm Laser Beam
- Dx
- · Replies 2 ·
How Do You Calculate the Sun's Average Power Output?
- Dx
- · Replies 2 ·
I have enrolled in a Trigonometry Class in College.
- zeronem
- · Replies 7 ·
Conversion factor from amperes to milliamperes
- dynamic998
- · Replies 7 ·
How Does Light's Wave Nature Affect Double Slit Experiment Results?
- Dx
- · Replies 2 ·
What is the mass of a gas sample at STP?
- Dx
- · Replies 3 ·
Calculating Frequency Using Doppler Effect Formula
- Dx
- · Replies 4 ·
The Relationship Between Celsius and Fahrenheit Temperatures
- Dx
- · Replies 3 ·
Forces related question (it's a problem)
- Moontears
- · Replies 3 ·
When you double your distance from a sound source
- Dx
- · Replies 2 ·
EM waves; max value of electric field
- Dx
- · Replies 2 ·
12 physics final review problems on kinematics, dynamics and energy
- Caldus
- · Replies 3 ·
A proton has a speed of 3 x 10^6 m/s
- Dx
- · Replies 2 ·
Tension of a rubber cord problem
- stuffy
- · Replies 2 ·
How do you determine the direction of velocity?
- Caldus
- · Replies 2 ·
Measuring the Spring Constant of Two Cords for a Slingshot Apparatus
- colonel
- · Replies 3 ·
Calculate (a) the total work done by the gas in the process
- msdjohnson
- · Replies 24 ·
How do I express friction as a velocity term for damped oscillations?
- tudur
- · Replies 8 ·
How Does Magnification Affect Object Distance in Lens Optics?
- Dx
- · Replies 4 ·
What is the theory of general and special relativity
- eastsidecrew
- · Replies 2 ·
Does a Radio Signal Count as a Physical Connection in Competition Rules?
- chuck7
- · Replies 2 ·
Can this info get a spring constant and a drop height
- griokin
- · Replies 2 ·
Where Should a Rectangular Plate Be Suspended for Equal Oscillation Periods?
- discoverer02
- · Replies 5 ·
How Much Does It Cost to Run Household Appliances?
- Dx
- · Replies 2 ·
Are exp(ikx) and exp(-ax^2) Eigenfunctions of P^2?
- jonnylane
- · Replies 2 ·
Man pulling pulley to raise elevator: why is acceleration 5 m/s²?
- ant284
- · Replies 10 ·
Proving Babinet's principle with complementary apertures
- KillaMarcilla
- · Replies 2 ·
How do I calculate the volume of Earth's oceans?
- Simon_Harmon
- · Replies 8 ·
Do all EM waves travel through a vacuum?
- Dx
- · Replies 5 ·
Magnetic fields and current flows problem
- Dx
- · Replies 3 ·
Simple pendulum and angular position
- Will
- · Replies 2 ·
Electron in magnetic field and TV
- S.P.P
- · Replies 5 ·
Electric field/charge woed problem
- Dx
- · Replies 2 ·
How Do You Calculate Capacitance and Electric Potential?
- Dx
- · Replies 2 ·
How Far is the Proton from the Electron in an Electric Field?
- Dx
- · Replies 2 ·
Finding g from the simple pendulum period formula
- physicsismylife
- · Replies 3 ·
What is the power input to the plant?
- JM2107
- · Replies 8 ·
How do massive objects bend light and relate to the 1919 eclipse?
- JM2107
- · Replies 2 ·
Does doubling temperature double average molecular speed?
- Dx
- · Replies 2 ·
Electric current flowing in a nichrome wire
- Dx
- · Replies 4 ·
Sites containing original problems
- Will
- · Replies 6 ·
Rotational Dynamics/Angular Momentum
- discoverer02
- · Replies 2 ·
Finding the angle for maximum light intensity through three polarizers
- Will
- · Replies 3 ·
Taking science GCSEs this year
- Viper
- · Replies 2 ·
What Is the Equilibrium Temperature of Copper in Water?
- Dx
- · Replies 2 ·
Is there a formula for energy associated with x-rays?
- dagg3r
- · Replies 2 ·
Calculating Radioactivity: 4000 cpm to bq
- dagg3r
- · Replies 2 ·
Waves and beats homework: parade marchers, explosions, tuning forks
- miyuki9
- · Replies 2 ·
Reducing 3-phosphoglyceroylphosphate in gluconeogenesis
- HazZy
- · Replies 7 ·
Electrical Circuit Analysis with C++ Issues
- bishwa
- · Replies 4 ·
What temperature will water boil at 5895m elevation on Mt. Kilimanjaro?
- BEVIN
- · Replies 2 ·
What is the change in KE of the proton?
- Dx
- · Replies 4 ·
Last-minute concept problems (before exams)
- Flame
- · Replies 15 ·
Seriously stumped by rotational motion
- discoverer02
- · Replies 28 ·
Solving a Simple Vector Problem
- Einstein
- · Replies 2 ·
What is the charge on 1kg of protons?
- Dx
- · Replies 2 ·
Why Does a Charged Particle in a Magnetic Field Perform Circular Motion?
- KLscilevothma
- · Replies 3 ·
Concave mirror image position and refraction through glass plate
- Prime
- · Replies 9 ·
Electric charge and elctric filed
- Dx
- · Replies 2 ·
How Long Will It Take for the Sun to Convert 12% of Its Hydrogen into Helium?
- ant284
- · Replies 4 ·