Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
What is the significance of the 2 - 3 sigma limit in statistical measurements?
- S.P.P
- · Replies 3 ·
Density of the sun as a white dwarf.
- Bottomsouth
- · Replies 6 ·
A problem on rotational mechanics
- harini_5
- · Replies 3 ·
Freq. of small oscillations in two pendulums
- ejs12006
- · Replies 3 ·
Calculating Average Power for a 51 kg Woman Running Upstairs
- Cheddar
- · Replies 2 ·
Electric potential at the origin
- physics10189
- · Replies 12 ·
Question on Ship Motion: Calculating Mass, Force, and Submersion
- leena19
- · Replies 10 ·
How Do You Calculate the Equivalent Capacitance of a Complex Circuit?
- kyrax
- · Replies 1 ·
Solve Kinematics Problem: Dropped Object from Tower Height
- Smile101
- · Replies 15 ·
Gauss's Law: Solve Cylindrical Shell Problem
- jghlee
- · Replies 5 ·
Find the Time and write it as a power
- waxer1987
- · Replies 2 ·
Calculating the Depth of a Well: Stone Drop and Sound Splash Time
- green11
- · Replies 11 ·
Gravitational field intensity (help)
- waxer1987
- · Replies 1 ·
What is the reading shown by the ammeter?
- leena19
- · Replies 5 ·
Why Does Cherenkov Radiation Form a Ring in a Concave Mirror Setup?
- ideasrule
- · Replies 5 ·
Dynamics - forces in two objects, Newton's third law
- shaools
- · Replies 21 ·
How Does Vector Addition Apply in Calculating River Crossing Distances?
- dance_sg
- · Replies 4 ·
Distance and displacement, relative motion
- dance_sg
- · Replies 3 ·
Adding Sinusoids of differing Magnitute & Phases
- jeff1evesque
- · Replies 3 ·
How Far Does the Student Swim Across the River?
- dance_sg
- · Replies 2 ·
How Do You Calculate the Net Force and Angle in Vector Addition?
- dance_sg
- · Replies 2 ·
How Does River Flow Affect a Swimmer's Resultant Velocity?
- dance_sg
- · Replies 4 ·
Rotational Dynamics - Algebra Based
- physicistj
- · Replies 1 ·
Cannon Question: Loose Cannon Velocity
- JessGold
- · Replies 1 ·
Calculating pipe size for closed loop watering system
- Ice_ca
- · Replies 2 ·
Direction of current for Kirchhoff's Current Law
- filerosfer
- · Replies 8 ·
How Do You Calculate the Tension Tx in a Multi-Mass System?
- iamtrojan3
- · Replies 2 ·
How does the formula sheet help solve the problem?
- Matt1234
- · Replies 2 ·
Using area of pv graph to find work
- Iwanttolearn7
- · Replies 5 ·
Solve Network of Resistors: R1, R2, R3, R4, V=6V
- sarah895
- · Replies 3 ·
Unit Vector Parallel to Plane Formed by x+y+z & 3x-2y-2z Perp. to 2x+2y-z
- jeff1evesque
- · Replies 9 ·
AP Physics Help for Daughter: Solving a Kinetic Energy Problem
- Cluelessone
- · Replies 2 ·
Adiabatic Process in a heat engine
- talaroue
- · Replies 5 ·
Coulombs Law Problem - Find the Force
- KatieD
- · Replies 8 ·
Solving Velocity Vectors Problems: Tips & Tricks
- nevik
- · Replies 10 ·
Solving cubic roots (with imaginary number)
- jeff1evesque
- · Replies 7 ·
What is the initial speed of a bullet fired into a ballistic pendulum?
- balling12
- · Replies 6 ·
Calculating Tire Revolutions and Angular Speed in a Braking Car
- balling12
- · Replies 3 ·
Why Is the Acceleration Not Zero at the Highest Point of a Thrown Baseball?
- demonelite123
- · Replies 1 ·
What Is the Loss of Mechanical Energy in a Car Collision?
- Iwanttolearn7
- · Replies 7 ·
Driven Oscillation- Motion of a particle, with given equation.
- Self-Help
- · Replies 2 ·
Question on simple acceleration concept
- test2morrow
- · Replies 11 ·
Why voltage in a circuit is in a sinusoid form?
- jeff1evesque
- · Replies 4 ·
Rectilinear Motion of Particle
- adashiu
- · Replies 6 ·
Range of values of force for string to remain in tension
- Ljungberg92
- · Replies 11 ·
Distance traveled = Average velocity x time
- Voltman
- · Replies 2 ·
Calculating the Angular Size of an Image with a Magnifying Glass
- kbray278
- · Replies 3 ·
Newtown 2nd law of rotation problem
- Puchinita5
- · Replies 12 ·
Height and Range of a projectile
- clarineterr
- · Replies 5 ·
Maxwell equation, magnnetic induction field question?
- coffeem
- · Replies 6 ·
Projectile motion given theta and x
- tkahn6
- · Replies 3 ·
How Do You Calculate the Focal Length of a Microscope's Eyepiece?
- kbray278
- · Replies 1 ·
Blocks are connected by thin strings with tensions
- NikkiNik
- · Replies 2 ·
A ball is thrown in the air @ 30m/s
- rdmfresno
- · Replies 2 ·
Calculating Pressure and Velocity in a Cylinder of Argon: Tips and Tricks
- dalson
- · Replies 2 ·
Solving the Pulley Problem: Calculating Ceiling Force
- negatifzeo
- · Replies 4 ·
What Is the Total Displacement and Angle South of West for the Motorist's Trip?
- nevik
- · Replies 1 ·
Solve Mass Suspended from Uniform Boom
- NikkiNik
- · Replies 3 ·
Average Speed = distance/time question.
- rdmfresno
- · Replies 4 ·
Simple harmonic motion Need help Im studying
- NikkiNik
- · Replies 1 ·
Calculating Volume Using Buoyant Forces
- F2m185
- · Replies 2 ·
Calculate the change in entropy of the universe
- Harmony
- · Replies 2 ·
Velocity over time / 2 questions
- rdmfresno
- · Replies 7 ·
Weighing yourself in the elevator
- test2morrow
- · Replies 1 ·
Potential difference and electric fields
- peaceandlove
- · Replies 7 ·
Explaining the Relationship Between Force and Acceleration: Newton's Second Law
- flyingpig
- · Replies 4 ·
How can the boatman cross the river in the shortest time?
- harini_5
- · Replies 3 ·
Rotating Cylinder Homework: 2kg Mass, 2.5N Force, 1.2m Horizontal Distance
- courteous
- · Replies 3 ·
Find the net gravitational force?
- wasi90lk
- · Replies 3 ·
Vector Coordinate Conversion & Phasors
- jeff1evesque
- · Replies 13 ·
Wave optics YOUNG'S DOUBLE SLIT EXPERIMENT
- harini_5
- · Replies 4 ·
What is the length of the inductor?
- mba444
- · Replies 1 ·
Reflection of spherical wave from plane
- ThetaPi
- · Replies 2 ·
Current electricity and finding resistances
- leena19
- · Replies 9 ·
Input and output of an operational amplifier
- ananthu
- · Replies 7 ·
Calculating Point Charge from Kinetic Energy and Electric Potential
- peaceandlove
- · Replies 2 ·
What is the magnitude of the force the first exerts on the second?
- mba444
- · Replies 1 ·
Explain the concept of significant figures?
- I'm
- · Replies 6 ·
Relative velocity & Quantum mechanics (I think?)
- Subrosian
- · Replies 2 ·
Electric Field 2: Calculate Electric Flux Through Cube Corner
- leena19
- · Replies 5 ·
SHM(mass suspended vertically on spring)
- nrweis
- · Replies 6 ·
How Do You Calculate Time When Velocity Equals Zero in a Complex Equation?
- math4life
- · Replies 1 ·
Derivations of dimensions problem
- I'm
- · Replies 3 ·
Vertical Circle Rod: Work and Energy Calculations | Simple Homework Question
- Puchinita5
- · Replies 1 ·
Shooting a cannonball over a cliff
- clarineterr
- · Replies 5 ·
How Can Vector Addition Determine the Single Putt Needed in Golf?
- featherguy
- · Replies 1 ·
Solving Gauss's Law Problems: Infinite Sheet & Slab of Charge
- typeinnocent
- · Replies 1 ·
Understanding the Force of Gravity, Step-by-Step
- test2morrow
- · Replies 2 ·
Calculating Boat Ground Speed: E-S Direction
- Smile101
- · Replies 16 ·
Introductory kinematics word problem
- shaools
- · Replies 6 ·
Graphing sound waves at the bottom of the ocean
- MyNewPony
- · Replies 1 ·
I can not calculate these Newton equations
- Apprentice123
- · Replies 10 ·
What is the Approximate Index of Refraction of a Transparent Liquid?
- Perrin
- · Replies 2 ·
Balancing Forces: Calculating Center of Mass and Support Distance
- Miri
- · Replies 6 ·
Calculating Helium Needed for a Balloon to Float
- Miri
- · Replies 8 ·
Find the magnitude of force per unit length exerted by one wire on the other
- mba444
- · Replies 4 ·
Finding Tension in Cable Supporting a Horizontal Beam
- Miri
- · Replies 11 ·
Finding Magnetic Field from a Current Bearing Conductor
- mba444
- · Replies 12 ·
Final velocity of the mass on an incline?
- titolydia
- · Replies 1 ·
What is the Mass of the Ruler on a Sharp Edge?
- Miri
- · Replies 1 ·