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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How Many Base-Out Configurations Exist in Sleazeball?
- franz32
- · Replies 6 ·
Why Is My Electric Potential Calculation Incorrect?
- supermenscher
- · Replies 2 ·
Time for sunlight to reach Earth, rocket travel time, and bullet deceleration
- terpsgirl
- · Replies 2 ·
Force exerted by rod on unrolling paper roll against wall
- Brianjw
- · Replies 17 ·
Does Light Pass Through a Slit Unaltered When Wavelength Equals Slit Width?
- Alice-Shallom
- · Replies 2 ·
Net charge of −59 μC: how many excess electrons and mass increase?
- supermenscher
- · Replies 2 ·
with Angular Momentum/Angular Speed
- needhelp
- · Replies 3 ·
What Stress Is Needed to Maintain an Aluminum Bar's Length from 15°C to 35°C?
- pupatel
- · Replies 2 ·
Complicated Centre of Mass Question
- siemieniuk
- · Replies 2 ·
Ladder in limiting equilibrium against wall and ground
- KnowledgeIsPower
- · Replies 9 ·
Moving Mass on a Moving Incline
- e(ho0n3
- · Replies 12 ·
Package dropped from plane and ball rolling off table
- akatsafa
- · Replies 10 ·
Sum of (i^2)/(4^i) where i is from 0 to infinity.
- Johnny Leong
- · Replies 13 ·
Solve for Man's Velocity on Ice After Throwing Book at 20 m/s
- terpsgirl
- · Replies 2 ·
Solving a Linear Equation with e^(x^2) Integrating Factor
- Math Is Hard
- · Replies 10 ·
Rod rotating with moment of inertia at angles? HUH?
- JamesJames
- · Replies 8 ·
Magnitude or direction of a vector
- akatsafa
- · Replies 3 ·
Threshold Frequency: Find Energy of Photoelectron w/ 0.4eV Work Function
- jazzchan
- · Replies 3 ·
How Do You Calculate Acceleration and Angular Speed in Physics Problems?
- franz32
- · Replies 5 ·
Chemical effect of electric current
- lakshmi
- · Replies 4 ·
How Much Work Is Needed to Move a Sodium Ion Across a Cell Membrane?
- supermenscher
- · Replies 8 ·
Problem driving me insane electric forces
- supermenscher
- · Replies 7 ·
Finding minimum air gap between parallel plates before breakdown
- supermenscher
- · Replies 2 ·
What Triggers Current Flow in a Photo-Tube?
- wikidrox
- · Replies 2 ·
Kinetic Energy and Angular Momentum of General Rotation System
- slayerdeus
- · Replies 2 ·
Convert Text to LaTeX File- Easy Steps!
- 3.14159265358979
- · Replies 15 ·
Finding the derivative of (1 - sin x) / (1 + sin x)
- maccaman
- · Replies 2 ·
Gravitational force and the distance from the earth
- akatsafa
- · Replies 15 ·
How Do You Differentiate y = sin(cos x)?
- maccaman
- · Replies 5 ·
Finding electric field from potential V(r)=V₀r²/2R²
- wave41
- · Replies 4 ·
Finding pass mark and A grade threshold in normal distributions
- maccaman
- · Replies 4 ·
Solving a Derivative Problem with f(x) = SQRT(1-3x)
- ladyrae
- · Replies 2 ·
Wavelength of Electron questions
- wikidrox
- · Replies 2 ·
Calculate Torque on Solid Cylinder: Mass, Radius, I
- ke2cool
- · Replies 4 ·
Speed, velocity and accelaration
- billytonydavies
- · Replies 2 ·
Finding frequency, period, wavelength and speed for six wave problems
- BRITTANI
- · Replies 4 ·
Why Does the Atwood Machine Problem Calculation Differ from Expected?
- Shentar
- · Replies 3 ·
How Does Normal Force Vary Across Different Hilltops on a Frictionless Ramp?
- Zorodius
- · Replies 7 ·
Solving Precalculus Problem: 1 - x-3/x-2 = 2x-3/x-2 - Tony Zalles
- Tony Zalles
- · Replies 5 ·
What's the Width of Your Eardrum?
- orgo
- · Replies 2 ·
TRIAC semiconductor device and ISM band applications
- Alireza
- · Replies 2 ·
What are insertion, deletion and inversion mutations?
- Nec
- · Replies 6 ·
Solving for Spring Constant and Distance in Falling Elevators Problem
- suffian
- · Replies 1 ·
C program: storing rounded float to int variable
- Math Is Hard
- · Replies 4 ·
Net electrostatic force on q2 in a square of four point charges
- supermenscher
- · Replies 7 ·
Friction force from foot pushing at 15° angle with 800N weight
- tweake
- · Replies 2 ·
Deceleration Problem: Solving for Time, Distance, and Trajectory
- cellfinder1
- · Replies 2 ·
Struggling with Econ? Firm Producing 10 Units, Profit $50
- cowgiljl
- · Replies 2 ·
Finding Electrical Field Around a Charge
- celect
- · Replies 2 ·
Electric Potential of an insulating washer
- jg370
- · Replies 2 ·
Calculating Net Force on Positive Particles Using Coulomb's Law and Vectors
- supermenscher
- · Replies 5 ·
How can we use a catapult to study the properties of skipping stones in physics?
- ponjavic
- · Replies 7 ·
Capacitors in parallel question
- Fuego
- · Replies 3 ·
Problems on Antidifferentiation
- franz32
- · Replies 3 ·
How Do You Calculate Elevator Acceleration Using Scale Readings?
- redshift
- · Replies 2 ·
Is morse code flashing a flashlight AM or FM modulation?
- wikidrox
- · Replies 2 ·
How to Solve an Atwood Machine Problem with a Pulley
- e(ho0n3
- · Replies 24 ·
Work Done Moving Box on Inclined Plane: 160 Newton
- 2Pac
- · Replies 4 ·
Electric potential at infinity from two point charges
- wave41
- · Replies 7 ·
Which Charge Do I Use for Calculating Capacitance?
- wikidrox
- · Replies 2 ·
Converging lens and Concave mirror
- HeyHow!
- · Replies 6 ·
About aerial dish used in communication
- Johnny Leong
- · Replies 2 ·
Angle between light rays after emerging from a prism
- shingetsunohimitsu
- · Replies 2 ·
The Constant Horizontal Force Needed to Raise the Wheel
- e(ho0n3
- · Replies 8 ·
Max Speed for 1500 kg Car on 90 m Curve
- 3.14159265358979
- · Replies 3 ·
Are electricity and magnetism more alike or different?
- DoctorReynaldo
- · Replies 2 ·
Recursive Integral Simplification
- Nihilist Comedian
- · Replies 3 ·
Mechanical Kinetic Energy vs Electrical Potential Energy
- jg370
- · Replies 3 ·
Projectile motion and radius of curvature.
- faust9
- · Replies 4 ·
Identifying Material Based on Density
- AKG
- · Replies 2 ·
What is the reference for our year based on periodic motion?
- Lindseynh
- · Replies 2 ·
Questions about the titanic ship
- decibel
- · Replies 6 ·
Sound Question: Chimney Flue Resonating at Fundamental Frequency
- Blade_of_Physics
- · Replies 5 ·
What Is the Minimum Starting Height for a Roller Coaster to Complete a Loop?
- e(ho0n3
- · Replies 12 ·
Finding the derivative of f'(x) = √x/3 − 3/√x + 2/x³
- ladyrae
- · Replies 20 ·
What is the Vertical Force on the Support Closest to the Piano?
- pupatel
- · Replies 2 ·
The Force of a Tractor Pulling a Trailer Up an Incline
- Wade
- · Replies 5 ·
What does the escape sequence \x4d represent in C?
- Math Is Hard
- · Replies 7 ·
Intensity For Three-Slit Grating
- DivGradCurl
- · Replies 7 ·
Is the Derivative Calculation Correct Despite the Notation Error?
- ladyrae
- · Replies 2 ·
Spinning Bicyle Wheel, Person, and Platform
- e(ho0n3
- · Replies 10 ·
How Do You Calculate Total Power in a Hydroelectric Power Station?
- Alix
- · Replies 12 ·
Partition of Integer need advice
- phoenixy
- · Replies 2 ·
Oil film thickness from interference maxima and minima
- yoshima
- · Replies 3 ·
Calculating Force from Ball-Bat Impact
- 3.14159265358979
- · Replies 5 ·
Finding f'(x) = x/(2x-1) using the limit definition
- ladyrae
- · Replies 3 ·
Finding f'(x) for f(x) = x - (a/x)
- ladyrae
- · Replies 2 ·
Websites to help secondary students with math
- modmans2ndcoming
- · Replies 2 ·
Conduction, convection currents, radiation
- thingsfallapart
- · Replies 4 ·
A static charge vs. electrical charge?
- Amphi
- · Replies 7 ·
Spool rolling behind a person pulling the rope
- e(ho0n3
- · Replies 3 ·
Will two speakers at opposite ends of a stadium produce good sound quality?
- MYS9
- · Replies 2 ·
Angle of an emerging ray through two boundaries
- nation_unknown
- · Replies 2 ·
Converting 25 Degrees to Radians: A Puzzling Question
- zillea
- · Replies 2 ·
Binomial Distribution (Statistics)
- haribol
- · Replies 2 ·
Frequency of fundamental and overtones in a guitar string
- pupatel
- · Replies 2 ·
How Is the Electrical Force Calculated on a Charge at the Center of a Hexagon?
- sandplasma
- · Replies 2 ·
How High Should a Rifle Barrel Be Aimed to Hit a Target 200m Away?
- PinkFlamingo
- · Replies 2 ·