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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Air-Track Cart Oscillating on a Spring, solve for time
- Becca93
- · Replies 2 ·
Finding bullet speed from block's motion across table and landing distance
- yttuncel
- · Replies 7 ·
Frequency of Pendulum: Calculate from 41.35s in 20 Cycles
- physicnoob101
- · Replies 1 ·
Gravitational potential energy?
- Plasm47
- · Replies 3 ·
Law of conservation, and efficiency problem?
- raininggently
- · Replies 1 ·
Determine the moment of inertia of the wheel
- skysunsand
- · Replies 2 ·
How to determine if angular momentum is conserved?
- shawli
- · Replies 21 ·
James Bond Mission: Find Height of Cannon from Sea
- maxtheminawes
- · Replies 4 ·
Temperature required for new rms speed
- rubenhero
- · Replies 5 ·
Total Mech Energy and Conservative forces
- sspitz
- · Replies 3 ·
Finding modulus of rigidity G from torsion pendulum experiment
- queenstudy
- · Replies 2 ·
Light beam displacement through silvered glass at 26° incidence
- MarieWynn
- · Replies 1 ·
Will the top or bottom cord snap when pulling a bird feeder's dangling cord?
- azure kitsune
- · Replies 6 ·
Find the difference in atomic mass between the two isotopes
- Ailiniel
- · Replies 3 ·
Thermal equilibrium, find final temp. or system?
- gibson101
- · Replies 2 ·
Rotational Kinetic Energy Question
- McAfee
- · Replies 2 ·
Angular Momentum of a beam problem
- vicTURBO
- · Replies 1 ·
Work-energy theorem with negative force on force-displacement graph
- Plasm47
- · Replies 8 ·
Momentum and Heat Homework: Mechanical to Thermal Energy
- tamir102
- · Replies 3 ·
Hanging Mass on a Spring- Fg = 1/2 Fx
- Maytox
- · Replies 1 ·
How Thick Is the Paint on the Room's Walls?
- tensirk
- · Replies 2 ·
Determining Ground State Configuration in 2D Square Well with Aufbau Process
- zsefvbjil1
- · Replies 1 ·
Golf ball dropped in sand: crater depth and meteorite impact
- HelpPlease92
- · Replies 8 ·
Apparent magnitude of a binary star system
- ~ZeroPoint~
- · Replies 1 ·
Temperature change in Celsius from Fahrenheit value
- rubenhero
- · Replies 5 ·
Two Electric Charges- Electric Force-Ranking
- jeandempsey
- · Replies 5 ·
2 dimension forces - problem solving for parked car
- maryemilyw
- · Replies 1 ·
Op-Amp basic problem with a LED diode
- Femme_physics
- · Replies 89 ·
Force vector on falling object to determine terminal velocity and to graph it
- Noise Tank
- · Replies 1 ·
Finding Ashley's mass from conservation of momentum on ice
- HighDef
- · Replies 1 ·
How do brakes bring a car to rest?
- sparkle123
- · Replies 10 ·
How Do You Calculate the Energy Required to Heat Water in Different Scenarios?
- nvidia17
- · Replies 4 ·
Finding uniformly increasing acceleration.
- AcousticBruce
- · Replies 1 ·
Airy disc rings from Lick Observatory telescope aperture
- Xyius
- · Replies 3 ·
Uniform Solid Sphere Moment of Inertia Calculation
- Mirumbe
- · Replies 7 ·
Power output of oscillator on steel wire at 63 Hz
- tavo0116
- · Replies 1 ·
Mass of a black hole - given only the diameter
- PirateFan308
- · Replies 4 ·
Finding the mass of silver in a Kennedy half-dollar using Archimedes principle
- VincentweZu
- · Replies 6 ·
How Does Mercury Completely Fill an Aluminum Container When Heated?
- apaxapax
- · Replies 1 ·
Sphere 1: +100 C Sphere 2: +1 C
- Jimmy84
- · Replies 6 ·
How Does Friction Impact the Energy Calculations in a Rolling Ball Experiment?
- greep
- · Replies 3 ·
Finding Velocity When Only Given Height
- akb16
- · Replies 9 ·
Car moving in a circular motion
- dttah
- · Replies 19 ·
How Do You Calculate Tension in a String With Masses and Friction?
- l607309608126
- · Replies 6 ·
Work done by an external force to move a charged particle
- maCrobo
- · Replies 5 ·
Pressure inside a helium balloon
- rubenhero
- · Replies 5 ·
How is the Equation for Steady Acceleration Derived?
- AcousticBruce
- · Replies 6 ·
Time for particle to fall from distance D to Earth's surface
- Trying
- · Replies 11 ·
Velocity of golf ball 2 seconds after launch at 96 m/s and 60°
- ja!mee
- · Replies 9 ·
Calculating Uncertainty With A Sine Function
- sunjay03
- · Replies 9 ·
Can You Design a Diode Circuit to Turn On at 5V and Off at 15V?
- sadf
- · Replies 1 ·
Acceleration due to gravity lab
- hotshot1kille
- · Replies 6 ·
How does induced charge separation work and why can it be confusing?
- whoareyou
- · Replies 1 ·
Determining the amplitude of an electric field from a broadcast satellite
- kmendonc
- · Replies 1 ·
Modified Newtons cradle and the Conservation of Momentum
- shyguy79
- · Replies 2 ·
Newton's 3rd Law Consideration in Circular Motion
- Seydlitz
- · Replies 12 ·
Absolute potential from sphere.
- dada130500015
- · Replies 1 ·
Finding number density and average distance between molecules
- lalahelp
- · Replies 7 ·
Heat to vaporize water in piston-cylinder at 100 kPa
- M Wierckx
- · Replies 3 ·
Simple harmonic motion finding velocity trouble
- Eats Dirt
- · Replies 9 ·
What is the Speed of a Train Using Doppler Effect Frequencies?
- Tensionfreek
- · Replies 1 ·
What fraction of the air molecules
- lalahelp
- · Replies 12 ·
Two points are on a disk that rotates about an axis perpendicular to the plane
- kirby27
- · Replies 1 ·
Does Distance Affect the Outcome in the Monkey and Zookeeper Problem?
- kghosh
- · Replies 10 ·
Simple rotational motion point problem
- kirby27
- · Replies 2 ·
Electric Field in a wire - creation
- dobry_den
- · Replies 12 ·
Do merry-go-rounds with more mass take longer to stop?
- kirby27
- · Replies 1 ·
Angular motion of a weather vane. How fast is it spinning after impact (rpm)?
- Jet red
- · Replies 1 ·
Finding Components of Vectors in a Crystal Lattice
- Eduard1
- · Replies 1 ·
Alternating Current (multiple CHoice)
- BSElectrician
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The law of conservation of energy
- cpaquette
- · Replies 3 ·
Citing a source for a value in a lab report
- Liquidxlax
- · Replies 4 ·
Oscillations of fluid in a U tube
- VortexLattice
- · Replies 7 ·
Does length contraction occur in gravitational fields
- manvirsingh
- · Replies 1 ·
Viscosity,Fluid flow and terimal velocity
- ChunkymonkeyI
- · Replies 2 ·
Heisenberg indeterminacy principle
- penmanta0711
- · Replies 1 ·
How Do You Calculate Efficiency in a Carnot Cycle Involving Argon?
- stonecoldgen
- · Replies 3 ·
Calculating the Total Work Done by Gravity
- Simon777
- · Replies 4 ·
Px = P cos θx equation question.
- AcousticBruce
- · Replies 8 ·
Determine the height to which the center of the baton travels
- sweetwilliam
- · Replies 2 ·
How to calulate the height on this manometer
- zainulariffin
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How far along circular arch is an astronaut
- sweetwilliam
- · Replies 2 ·
Magnitude of angular acceleration- my first post ever in physics forum
- sweetwilliam
- · Replies 8 ·
Calculating Velocity in Simple Harmonic Motion
- TerikE
- · Replies 1 ·
Where does the factor of 1/2 come from in rotational kinematics
- Miike012
- · Replies 1 ·
How Much Force is Required to Launch a Ship on an Inclined Plane?
- Coca Cola
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What Are the Velocities of Two Carts After an Elastic Collision?
- Millacol88
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Finding net force and acceleration in a three-person tug of war
- maxtheminawes
- · Replies 11 ·
Conservation of energy in a system
- sspitz
- · Replies 3 ·
Why is torque zero when a person walks to the center of a rotating platform?
- Miike012
- · Replies 3 ·
Bernoulli equation in terms of energy per unit volume
- zainulariffin
- · Replies 2 ·
How Do You Calculate Normal Force for a Cup and Saucer on a Table?
- Snape1830
- · Replies 3 ·
What Is the Direction of Precession for a Rotating Bicycle Wheel?
- Terrell8763
- · Replies 1 ·
2D Kinematics Problem w/ Coefficient of Friction?
- charliexx09
- · Replies 5 ·
Advancing Your Physics Knowledge: Recommended Books
- Miike012
- · Replies 1 ·
Amplitude of sum of waves with different frequencies
- imago
- · Replies 2 ·
Standard Harmonic Motion of a Plate
- vdipaola
- · Replies 3 ·
Figureing fps of a projectile with points of impact at 50yards and 25 yards
- cramerklontz
- · Replies 4 ·
Thermal expansion of an aluminum bar
- austindubose
- · Replies 1 ·