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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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 ·
Finding force on a suitcase handle and normal force on an inclined plane
- 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 ·
Finding distance r for zero net magnetic field from loop and straight wire
- 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 ·
Converting 0.454545... to a fraction using geometric series
- 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 incident and reflected rays at a mirror
- jai6638
- · Replies 7 ·
Find the limit of xsin(pi*x) at infinity
- allergic
- · Replies 6 ·
Getting started with differential equations
- DivGradCurl
- · Replies 15 ·
What is the rotational kinetic energy of a clock's hour and minute hands?
- UrbanXrisis
- · Replies 11 ·
Verify Effectiveness of Lightning Rod on Antenna Mast
- Jacob87411
- · Replies 2 ·
A couple of electric potential theory problems
- thisisfudd
- · Replies 2 ·
Magnetic field from a current carrying wire + earth's field
- Jacob87411
- · Replies 2 ·
Do molecules and atoms really exist?
- Yegor
- · Replies 5 ·
How do you find the domain just by looking at the equation?
- gillgill
- · Replies 7 ·
Solving Simple Kinematics: Person Throwing Rock from 40m High
- tony873004
- · Replies 2 ·
Help checking kinetic energy, collisions, and work problems
- mark9159
- · Replies 6 ·
Magnetic Force: Calculating B for 4.01A Wire
- figs
- · Replies 2 ·
Where does a transverse wave lose energy over time?
- primarygun
- · Replies 4 ·
Circular Motion: Minimum Radius for Safe Fighter Pilot Maneuvers
- whatsmyname
- · Replies 3 ·
Understanding Linear Motion and Angular Momentum
- mark9159
- · Replies 2 ·
Spring Projectile problem: center of mass
- Zenshin
- · Replies 3 ·
Dwell Time in Non-Contact Breaker Points Ignition Systems
- Andy
- · Replies 2 ·
How Does Work Affect the Energy of a System?
- hotmail590
- · Replies 6 ·
Calculate Tension R of Mass m on String of Length l at Temp T
- pt176900
- · Replies 4 ·
What is the speed of a killer whale as it jumps 6.6 m above the water?
- Gilly1998
- · Replies 2 ·
The internsity of a particular earthquake wave
- klmdad
- · Replies 5 ·
Why is the focal length for red light closest to that of white light in a lens?
- StonieJ
- · Replies 2 ·
How Does Walking Direction Affect Your Ascent or Descent on a Quadratic Hill?
- tandoorichicken
- · Replies 2 ·
What Is the Mass of Puck 2 in an Elastic Collision?
- mrjeffy321
- · Replies 21 ·
Rotational vs Translational Kinetic Energy of a Baseball
- UrbanXrisis
- · Replies 4 ·
Momentum/Energy Conservation problem
- quatli
- · Replies 3 ·
What Forces Affect the Speed of a Ball in Circular Motion?
- cstryker02
- · Replies 3 ·
What Is the Potential Difference Between Two Charged Parallel Plates?
- jordanl122
- · Replies 2 ·
Just a basic Series/Parallel circuit
- qwexor
- · Replies 3 ·
Verifying Reasoning for AQ Solutions and Water's Presence in Net Ionic Equations
- ktpr2
- · Replies 5 ·
Magnetism and human exposure limit
- Lateralus
- · Replies 3 ·
What is the meaning and application of this new chemistry formula?
- maxpayne_lhp
- · Replies 2 ·
Why Does the Equation log(35-x^3)/log(5-x)=3 Simplify to 1000=(35-x^3)/(5-x)?
- thomasrules
- · Replies 3 ·
Strategies for solving static equilibrium problems
- F|234K
- · Replies 4 ·
Static equilibrium problem - can't find right answer
- krypt0nite
- · Replies 5 ·
What Initial Horizontal Velocity Is Needed to Clear the Shelf Below?
- runner1738
- · Replies 3 ·
How do prime numbers play a crucial role in the security of the RSA algorithm?
- whatzzupboy
- · Replies 5 ·
Am I setting this diff eq up correctly?
- kdinser
- · Replies 2 ·
Finding constants p, q, r for sequence t_n = p*q^n + r
- preet
- · Replies 10 ·
Solving Oscillation Questions: Calculating Mass and Frequency
- Eclypse
- · Replies 4 ·
Building a Circuit - Is it Correct?
- dsb_mac
- · Replies 16 ·
What Are I-V Characteristics in Electrical Components?
- Matt.D
- · Replies 2 ·
Car driving off a 51 m cliff with 134 m horizontal distance
- shawonna23
- · Replies 2 ·
Period of conical pendulum in horizontal circle
- Xerxes1986
- · Replies 8 ·
Is a Circle with Radius 0 Real?
- no name
- · Replies 4 ·
Calculate Gauge Pressure on Sunken Ocean Liner
- cdhotfire
- · Replies 5 ·
Magnetic field in coaxial cable using Ampere's law
- CartoonKid
- · Replies 2 ·
Solving Projectile Problem for Initial Speed v Needed
- tony873004
- · Replies 21 ·
Speed of Imperial Spaceship Relative to Arrakis: 0.964c
- Twigs
- · Replies 5 ·
Finding Probability of Solving a Rubik Cube with 3 Pieces
- Feynmanfan
- · Replies 2 ·
How Do You Calculate the Centripetal Acceleration of a Stone in Circular Motion?
- waterchan
- · Replies 2 ·
How Fast Must a Magnetic Field Change to Induce a Specific Current?
- triplezero24
- · Replies 2 ·
How to find the equivalent capacitance in a complex circuit?
- neik
- · Replies 5 ·
Motion in a Plane: Solve for Horizontal Distance
- ktd
- · Replies 3 ·
Wicked proton trajectory problem
- TechFlyer
- · Replies 2 ·
Why do improper integrals split at different points give the same sum?
- DivGradCurl
- · Replies 2 ·
Speed at which tension is equal in both wires supporting a sphere
- hieule
- · Replies 2 ·
Projectile Motion + Linear Motion = Problem
- ktd
- · Replies 3 ·
Understanding Light Refraction Through Lens Experiments
- StonieJ
- · Replies 5 ·
How Do You Calculate the Integral of A.dl Over a Cylinder Surface?
- Hoofbeat
- · Replies 3 ·
Understanding Why Tires Grip the Road Better on Level Ground
- Dooga Blackrazor
- · Replies 6 ·
What is the Interval for Increasing Function y=x+sinxcosx?
- Kamataat
- · Replies 10 ·
Relativity Doppler Shifts et al
- stunner5000pt
- · Replies 3 ·
Calculate the flux that passes through the floor
- figs
- · Replies 4 ·
If int_a^b f(x) dx = a+2b, then what is int_a^b (f(x) + 5) dx equal to
- UrbanXrisis
- · Replies 2 ·
How can I integrate x^3/y^2 to solve this differential equation?
- Pseudo Statistic
- · Replies 3 ·
Applying Sig Figs to Complex Calculations
- firstwave
- · Replies 8 ·
Solving R = 3(a + b) for b: which form is simplified?
- EProph
- · Replies 2 ·
What is the Connection Between Polar Coordinates and Integrals?
- Phymath
- · Replies 4 ·
What is the power delivered by a 540W heating coil at 1200C?
- cnugrl
- · Replies 2 ·
Solving a Trig Substitution Problem: Incorrect Solution
- ProBasket
- · Replies 5 ·
Heat Absorption by a Person's Hand from Steam to Liquid
- Lovely
- · Replies 2 ·
Is log( x^(-y) ) = -y, somebody told me this.
- TSN79
- · Replies 5 ·
Aerodynamics-related extended essay
- gschjetne
- · Replies 2 ·
Does Reduced Metal Always End Up as an Element?
- hoedown_j
- · Replies 2 ·
Calculate Mass of Core in M87 Galaxy w/ Hubble Telescope
- xelda
- · Replies 2 ·
Question regarding electronics (operation amplifier)
- Sanosuke Sagara
- · Replies 2 ·
Faraday's law: finding rate of area change when B is constant
- figs
- · Replies 3 ·
What is the Value of the Second Capacitor in a Charge Conservation Problem?
- leolaw
- · Replies 2 ·
Expected Repairs for Leased Computer: Calculating Mean and Standard Deviation
- mutzy188
- · Replies 2 ·
Answer Moment of Inertia: Doubling Mass, Adding Weight to Stick
- twiztidmxcn
- · Replies 3 ·
How Does Angular Velocity Relate to Radians and Hertz?
- tony873004
- · Replies 2 ·
Finding current from electron count over time
- Cyrad2
- · Replies 2 ·
Counting Problem: Proving the Integer Property of ((n^2)!)!/(n!)^(n+1)
- fourier jr
- · Replies 2 ·
Battery capacity and time to full discharge
- Quipzley
- · Replies 2 ·
Calculating Time and Distance for Basketball Throw
- runner1738
- · Replies 6 ·