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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Why The earth and the moon attract each other with a gravitational force
- mark9159
- · Replies 11 ·
Solving an Entropy Problem: Finding the Temperature T in a Carnot Engine
- Rachel C
- · Replies 5 ·
How Do You Set Up Equations for Electrical Circuit Problems?
- tzeteng
- · Replies 6 ·
How Does Charge Distribution Affect Forces in a Polygonal Arrangement?
- Imo
- · Replies 2 ·
Electromagnetic Induction and Faraday's Law
- airkapp
- · Replies 4 ·
A general question about gravity
- phy
- · Replies 6 ·
Questions on Magnetic Induction
- metz143
- · Replies 2 ·
The Conservation of Mechanical Energy
- zizikaboo
- · Replies 2 ·
Help with Friction: Solving a Problem Example
- FocusedWolf
- · Replies 2 ·
Stuck on this probability problem
- semidevil
- · Replies 2 ·
Quadratic Trig Equations with Limited Domain: Finding Correct Solutions
- aisha
- · Replies 9 ·
Potential energy and a skateboard, only have until 11:30
- kpangrace
- · Replies 3 ·
Find out weather differences in relative humidity
- aisha
- · Replies 3 ·
Relationship between ppl and # of handshakes
- aisha
- · Replies 21 ·
Which Model Better Values American Options: Binomial or Black Scholes?
- courtrigrad
- · Replies 7 ·
What is the force on an electron moving in a magnetic field?
- airkapp
- · Replies 6 ·
Investment Calculator: Calculating Total Profit~~
- neik
- · Replies 5 ·
How to Design a Traffic Light with a DC Power Supply
- Shahil
- · Replies 3 ·
Calculating Spring Stretch in a Horizontal Setup
- whereisccguys
- · Replies 3 ·
Volume Integration: Calculate Rotated Region Bounded by y=9-X^2, X=2
- Link
- · Replies 3 ·
Calculating Electric Field: Solving for a Moving Rod
- whitetigerboy56
- · Replies 3 ·
Does Special Relativity Affect the Work Needed to Accelerate a Particle?
- matpo39
- · Replies 2 ·
HELP Rotational equilibrium material
- misskitty
- · Replies 2 ·
What is the Weight of an Astronaut on a Shuttle 518917m Above Earth?
- mohlam12
- · Replies 10 ·
How Many Revolutions Before the Tube Breaks in Nonuniform Circular Motion?
- flyguyd
- · Replies 3 ·
Two particles in a magnetic field
- sony
- · Replies 2 ·
What Type of Circuit Is This?
- tinhnho
- · Replies 2 ·
Thermal physics - partition function
- jessawells
- · Replies 2 ·
How to Calculate Horizontal Projectile Motion on the Moon
- mohlam12
- · Replies 19 ·
Designing a Non-Mechanical Timing Device: Ideas Needed!
- k_2_the_arma
- · Replies 12 ·
Is There a Tangent Plane on x^2-3y^2+2z=4 Parallel to 2x+y-z=4?
- Romperstomper
- · Replies 2 ·
Electrostatics: Calculating Charge on Suspended Spheres
- Neerolyte
- · Replies 4 ·
Help Needed: Finding p(r) in Statistical Mechanics at STP
- Norman
- · Replies 3 ·
2 frequencies within an interference pattern
- lektor
- · Replies 4 ·
Calculating Acceleration: Understanding Horizontal Forces on a 3kg Mass
- RadiationX
- · Replies 5 ·
How Do You Find the Area Between Intersecting Graphs?
- ProBasket
- · Replies 4 ·
Mastering Integrals: A Cute Factoring Trick
- ToxicBug
- · Replies 8 ·
Finding the Speed of a Falling Brick on a Slope
- sony
- · Replies 10 ·
Water flow venturi meter problem Heeeelp please
- fcukniles
- · Replies 21 ·
Solve Excercise 9 in AP Calculus: Find DELTA for |f(x)-L| < E
- Pseudo Statistic
- · Replies 2 ·
How do waves form and dissipate in water?
- primarygun
- · Replies 2 ·
Calculating Torque of sphere resting on an inclined plane
- candyshot
- · Replies 3 ·
Left Limit of |x| at x=0: Conceptual Reason
- ktpr2
- · Replies 20 ·
Solving Exam Anxiety: Strategies & Advice
- A_I_
- · Replies 4 ·
How Do You Find the Radius When a Circle's Area and Circumference Total 16?
- lektor
- · Replies 6 ·
How to extract sulfur from ground water
- bigtoe
- · Replies 3 ·
What is the tension in the rope if The box is at rest?
- mugzieee
- · Replies 3 ·
Solve the 2x Equation: 2^2x-12(2)^x+32=0
- thomasrules
- · Replies 3 ·
How Accurate Are My Physics Problem Solutions?
- woodworker101
- · Replies 3 ·
Mastering Physics: Ball hits wall Elastically
- RhysticGenesis
- · Replies 5 ·
How Do Friction and Centripetal Force Affect Motion on a Slide and a Rotor Ride?
- Vlyandra
- · Replies 2 ·
How Is Potential Difference Affected When a Loop Exits a Magnetic Field?
- thursdaytbs
- · Replies 2 ·
Abstract Algebra - Centralizers
- vsage
- · Replies 2 ·
Velocity of Lithium Atom Powered by 1mW Laser Beam
- stunner5000pt
- · Replies 11 ·
Finding the End Behaviour Model for a Power Function?
- ms. confused
- · Replies 2 ·
Theoretical question about capacitance
- thisisfudd
- · Replies 9 ·
Graphing f(x)=2^2+9/5x^2+2: Imaginary #s
- Rasine
- · Replies 6 ·
Statistical/thermal physics problem
- Dracovich
- · Replies 11 ·
A hypothetical pressure question lifting a 10,000kg object
- vaxopy
- · Replies 2 ·
What is the current through the wire?
- thisisfudd
- · Replies 6 ·
One of those problems that looks simple but probably isn't
- thisisfudd
- · Replies 3 ·
Simple Equation: Find x in 1+8x^{-1}+15x^{-2}
- thomasrules
- · Replies 8 ·
Solving Capacitor Problem with 2 Capacitors
- thisisfudd
- · Replies 16 ·
What Is the Potential Along the X-Axis Due to Two Point Charges on the Y-Axis?
- quick
- · Replies 2 ·
Calculating Angular Acceleration in a Pivoted Rod
- UrbanXrisis
- · Replies 2 ·
Determine half-life of this substance
- thomasrules
- · Replies 5 ·
Capacitors charging capacitors
- biigturkey
- · Replies 9 ·
FBD and what forces should I include?
- hahaha
- · Replies 6 ·
How Does Charge Distribution Affect Fields and Energy in Nested Conductors?
- DR33
- · Replies 4 ·
Why Is the Electric Field Inside a Solid Metal Sphere Zero?
- thisisfudd
- · Replies 2 ·
Moment of inertia of an irregularly shaped object
- UrbanXrisis
- · Replies 3 ·
Does the Summation of a Number Equal Its Square Root?
- whatzzupboy
- · Replies 17 ·
Thermal/mechanical properties of matter
- fasterthanjoao
- · Replies 4 ·
Converting 20mm of Gas to Pascals: A Simple Guide
- fcukniles
- · Replies 2 ·
What Happens to a CRO Screen When Switching Between AC, GND, and DC Modes?
- adrienne
- · Replies 3 ·
Centrip Force and Coef. of Friction
- Dunience
- · Replies 2 ·
Kinematics - Finding velocity of a baseball
- kidia
- · Replies 2 ·
Calculating Power and Energy Consumption in Electrical Circuits
- hackeract
- · Replies 5 ·
Mastering Logarithms: Simplify with 2/log9 A - 1/log3 A = 3/log3 A
- thomasrules
- · Replies 12 ·
How Do I Determine the Thermal Conductivity of Glass from My Graph?
- chickens
- · Replies 3 ·
Effortless Integration Help for cos^2(2y) | Get Expert Tips
- andrew410
- · Replies 2 ·
Efflux problem is my work valid?
- cepheid
- · Replies 2 ·
Discover the Steps to Solve for X in a Chemistry pH Equation
- stressedout
- · Replies 3 ·
Lissajous figure and oscilloscopes problem
- figs
- · Replies 4 ·
Physics Newb Needs Help With Mass
- R.J.
- · Replies 4 ·
Battery and potential difference
- thisisfudd
- · Replies 4 ·
Two questions involving factoring
- erik05
- · Replies 4 ·
Calculating Average Force from Water Flow Rate and Height
- mooshasta
- · Replies 3 ·
Newton's Laws: Solving Problems with Physics Homework Help
- woodworker101
- · Replies 2 ·
What Are the Best Science Projects for Extra-Curricular Learning?
- Specimen
- · Replies 7 ·
Solving the Train and Spring Problem
- whereisccguys
- · Replies 2 ·
Diagonal Rule in Chemistry and Electron Configuration
- courtrigrad
- · Replies 2 ·
Magnetic Field With Loop and Straight Wire Help
- GingerBread27
- · Replies 2 ·
Calculating Initial Separation of Charged Particles Using Conservation Laws
- NotaPhysicsMan
- · Replies 11 ·
Do Transition Elements Follow Main Group Trends in Atomic Radius?
- Nx2
- · Replies 2 ·
Solving a Repeating Decimal: 0.45454545...
- a_ng116
- · Replies 3 ·
Solving Spring Problem w/ Mass of 65.0kg & Force of 775N
- dagger32
- · Replies 2 ·
Calculate Magnitude of Positive Charge on Two Conducting Spheres
- Jatsix30
- · Replies 2 ·
Particle seperation by density using acceleration
- kthakore
- · Replies 3 ·
Angle between the incident ray and the reflected ray?
- jai6638
- · Replies 7 ·