Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
How Do You Calculate Current in R1 Using Kirchhoff's Rules?
- Gonger
- · Replies 2 ·
Uncertainty principle and tv picture tube
- matpo39
- · Replies 2 ·
Determine the direction of the magnetic field
- Haftred
- · Replies 3 ·
Efficient Pendulum Pivoting for a Frictionless Physics Experiment
- explorien86
- · Replies 2 ·
Calculating Diameter of Illumination on the Moon | Help with Light Problem
- shaiqbashir
- · Replies 2 ·
Can anyone give me an idea on these probs
- metz143
- · Replies 2 ·
How to integrate sqrt( cos(x) + cos(x)^3)
- Yegor
- · Replies 23 ·
Please Please help me in this Diffraction problem
- shaiqbashir
- · Replies 2 ·
How Do You Calculate Equitable Payments in Financial Mathematics?
- Oxymoron
- · Replies 1 ·
Algebra - inverse of complex numbers
- bemigh
- · Replies 2 ·
What are the Final Velocities After a Proton Collides with a Carbon Atom?
- Xerxes1986
- · Replies 10 ·
Given (1/cos x)+tan x=22/7 , (1/sin x)+(1/tan x) = m/n, find m+n
- no name
- · Replies 4 ·
Calculating the Bending Moment of a Steel Tube
- fcukniles
- · Replies 2 ·
Calculating Rod Movement with Lagrangian Mechanics: Shear Modulus & Mass Ratios
- danesh
- · Replies 3 ·
What is the tension in rope 2 if a sled dog pulls 2 sleds with different masses?
- flyguyd
- · Replies 2 ·
Anyone want to help w/ phys homework? It's magnets
- physreject
- · Replies 2 ·
2004 Georgia Tech Math Competition questions
- r3dxP
- · Replies 20 ·
Max Angular Freq. & Necessary Cord Tension for 15-kg Stone on Icy Surface
- tony873004
- · Replies 9 ·
Need help on another optimization problem
- jzq
- · Replies 4 ·
How Does Friction Affect a Hockey Puck's Acceleration and Distance on Ice?
- Power24
- · Replies 4 ·
Help Needed: Calculating Mutual Speed After Tackling Collision
- pixelized
- · Replies 2 ·
How Does Weather Affect Telecommunications?
- Lateralus
- · Replies 6 ·
How Does Friction Affect Spring Compression on an Incline?
- bignasty
- · Replies 2 ·
Help with a very easy mechanic problem. (Still I can´t solve it)
- mprm86
- · Replies 7 ·
How can the parallax method be used to determine the distance of a star?
- snafu
- · Replies 2 ·
Colgate Total: The Total Package for a Simplified Shopping Experience
- mouse
- · Replies 6 ·
Applications of Derivatives using Pythagoras
- erik05
- · Replies 4 ·
What Is the Mass Ratio of Neutron to Proton in an Elastic Collision?
- lookitzcathy
- · Replies 2 ·
Find:2 Non-isomorphic groups of order n squared. help?
- assman
- · Replies 3 ·
Adding I1,I2,I3,I4 to Get I5 - Tips & Tricks
- Matty9879
- · Replies 5 ·
How Do You Calculate the Maximum Angle of Deviation in an Electric Field?
- z_sharp
- · Replies 2 ·
What are the best books to master E&M ?
- FancyNut
- · Replies 5 ·
Heat Capacity of Tin Near Fusion Point
- Yegor
- · Replies 2 ·
Find acceleration of car attached to spring scale
- the_d
- · Replies 2 ·
How Does Club Length Affect Golf Swing Speed and Kinetic Energy?
- Padj01
- · Replies 2 ·
Calculate Angular Momentum of Falling Ball
- UrbanXrisis
- · Replies 3 ·
Please do reply(VECTORS related problem)
- mohdfasieh
- · Replies 2 ·
Is this an elastic or inelastic collision?
- new324
- · Replies 2 ·
Parallel Pipe Flow: Potential Energy Drop
- Soaring Crane
- · Replies 5 ·
How Do You Calculate the Minimum Banking Angle for a Car in a Turn?
- DrZoidberg421
- · Replies 5 ·
How to Solve for Currents in a Circuit with Resistors and Voltage Sources?
- Matty9879
- · Replies 2 ·
Why is the acceleration value halved in distance calculations?
- eax
- · Replies 4 ·
How High is a Satellite Traveling at 6.7 km/s Above Earth?
- the_d
- · Replies 9 ·
me in solving this Diffraction Grating Problem
- shaiqbashir
- · Replies 2 ·
Finding Tension in Rope Supporting Box & Pulley
- tony873004
- · Replies 5 ·
Constructing Proofs: Solving Set Functions with Characteristic Functions
- SpatialVacancy
- · Replies 2 ·
Magnetic field of a coaxial cable
- andrew410
- · Replies 2 ·
Another lengthy mechanics questioN
- lektor
- · Replies 2 ·
Calculating Capacitor Potential Difference and Resistance for 12V Battery
- ShadowFX
- · Replies 8 ·
How Does a Circular Hole Affect the Center of Mass of a Rectangular Plate?
- whereisccguys
- · Replies 2 ·
Aluminum wire, current, voltage, density, find mass
- vaxopy
- · Replies 5 ·
Calculating Tb/Ta Ratio for Planets A & B
- the_d
- · Replies 2 ·
Solving Physics Gravity Problem: 80kg Object Falling
- SwAnK
- · Replies 4 ·
Electric fields + magnets = ouchies
- Poop-Loops
- · Replies 9 ·
Angular acceleration and tension
- Satoy
- · Replies 2 ·
How Do I Solve Normal Distribution Problems Beyond the Standard Z-Table Range?
- semidevil
- · Replies 3 ·
Solve Calculus Problem | Astroid Equation & Derivatives - Step by Step
- erik05
- · Replies 6 ·
Simple thinking problem - mirror refraction
- airkapp
- · Replies 6 ·
What is the angle between two vectors?
- UrbanXrisis
- · Replies 4 ·
Which Lens Material Requires the Most Effort to Craft?
- stunner5000pt
- · Replies 2 ·
What Is the Momentum of a Particle at the Highest Point of Its Trajectory?
- UrbanXrisis
- · Replies 12 ·
Help with Optics: Calculate Maximum Angle of Incidence
- stunner5000pt
- · Replies 1 ·
How Far and How Long Until the Sports Car Catches Up with the Truck?
- Dough
- · Replies 7 ·
Electricity and magnetism question
- benji
- · Replies 2 ·
Completing the Square Practice Questions
- valentines
- · Replies 4 ·
Calculating Torque and Rotational Kinetic Energy: Homework Help
- vitaly
- · Replies 4 ·
Magnetisim Problem Just need an Equation.
- Fused
- · Replies 2 ·
Solving the Stopping Force of an Arrow Shot into Hay
- askthefool
- · Replies 2 ·
Capacator with moving dielectric
- davidY
- · Replies 3 ·
Lens power/focal length question
- StonieJ
- · Replies 4 ·
Some help on Michelson-Morley experiment
- mathlete
- · Replies 3 ·
Solving a system of linear equations
- Mathman23
- · Replies 8 ·
Kinetic Energy on Incline Objects: Cylinder, Sphere, Hoop, All Same?
- UrbanXrisis
- · Replies 3 ·
What is the time when the ball is 15 m above the ground?
- carltonblues
- · Replies 3 ·
How Fast and How Long Does a Pebble Travel in a Projectile Experiment?
- carltonblues
- · Replies 4 ·
How do I calculate the net resistance in a complex resistor circuit?
- Spyder22
- · Replies 2 ·
Is a Potato Gun Project Safe for Physics Experiments?
- SelmerSaxMan
- · Replies 5 ·
Calculating Work Done Dragging a 20.0kg Suitcase
- askthefool
- · Replies 2 ·
How Does a Corner Reflector Work to Reflect Light Back Along Its Incident Path?
- shaiqbashir
- · Replies 2 ·
What Forces Determine a Submarine's Diving Trajectory?
- yoyo
- · Replies 2 ·
What is the Electric Field of a Cylindrical Capacitor?
- AKG
- · Replies 2 ·
Lots of electricity confusion
- preet
- · Replies 8 ·
Proving Limit of Sequence: a1, b1, a2, b2,... Converges to L
- matrix_204
- · Replies 3 ·
Find the equation of the hyperbola with centre at the origin
- blue_soda025
- · Replies 5 ·
What is the minimum radius for a safe and effective space station?
- LHS Students
- · Replies 8 ·
Help Prove: \int_{a}^{b}f > 0 for Continuous, Non-Negative f on [a,b]
- stunner5000pt
- · Replies 8 ·
Claculate the final speed of a skier who skis down a hill
- lochs
- · Replies 7 ·
Can u simplify this further? (25-x) / (-25-x)
- punjabi_monster
- · Replies 3 ·
How Does Height Affect Blood Splatter Area in Experiments?
- Garret
- · Replies 2 ·
Calculating Plane Mirror Height for Full Reflection | Physics Help
- Novus Dakota
- · Replies 2 ·
Calculate Resistance Needed to Reduce Current to 0.198 Amps in Series Circuit
- mgiddy911
- · Replies 2 ·
Power Consumption: Calculating Total Wattage for Connected Heaters
- Winner
- · Replies 16 ·
Mass of Planet Given Period, Radius & G Constant
- the_d
- · Replies 2 ·
Vout Impact of Taking Current from Potential Divider
- Mo
- · Replies 13 ·
Definite Integral of ln*algebraic function
- maverick280857
- · Replies 21 ·
How Is Average Force Calculated When Catching a Baseball?
- lochs
- · Replies 2 ·
Vector Projection Proof: Does aproj.(b+c) = aproj.b + aproj.c?
- Poobel
- · Replies 6 ·
How Does a Spring's Compression Relate to Block Height and Work Done?
- InFiNiTeX
- · Replies 2 ·