Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
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 ·
Analyze the movement after displacing the mass xo horizontally
- Feynmanfan
- · Replies 5 ·
Finding X and Y components of forces in equilibrium experiment
- aek
- · Replies 4 ·
How do I calculate moment of inertia for a disk and ring combination?
- Tom McCurdy
- · Replies 5 ·
Proving derivative of characteristic polynomial equals sum of cofactors
- oobob
- · Replies 2 ·
Find Amperage knowing # electrons and time
- Cyrad2
- · Replies 2 ·
Finding center of mass and torque for a bent uniform wire
- Tom McCurdy
- · Replies 5 ·
Calculating Mass of Calcium in Saturated Water Tank
- Kawrae
- · Replies 2 ·
Identifying Lewis Acids: Examples and Corrections
- vsage
- · Replies 1 ·
Big Bertha shell range with 85.3° angle and 1.22 km/s muzzle velocity
- runner1738
- · Replies 15 ·
Solid angle of a cone with half-angle alpha
- Hoofbeat
- · Replies 2 ·
Finding the Angle of Projection for a Projectile Using Trigonometry
- tony873004
- · Replies 3 ·
How Can Temperature Affect the Breakdown Voltage of a Semiconductor Diode?
- endeavour
- · Replies 4 ·