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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Solving Forces and Acceleration for a System of Masses
- Faiza
- · Replies 9 ·
Diffraction grating to spread first-order spectrum by 20 degrees
- paul11273
- · Replies 4 ·
Evaluate L'(9) Given L(x)=sqrt(x)*f(x), f(9)=3, F'(9)=(-4)
- UrbanXrisis
- · Replies 2 ·
How to Calculate Velocity After a Spring Releases?
- songokou77
- · Replies 2 ·
What Determines the Velocity of a Mass Released from a Compressed Spring?
- songokou77
- · Replies 2 ·
Solving an Integral Involving $\Theta$ and $u$ - Seeking Assistance
- Odyssey
- · Replies 2 ·
What is the force on the handle in a statics problem using Excel?
- Double A
- · Replies 2 ·
How Can Conservation of Energy Determine Projectile Height and Bead Speed?
- Spitting_Camel
- · Replies 2 ·
Solving Velocity Problem: Need Help with Unknowns
- Afro_Akuma
- · Replies 19 ·
Understanding AVG Speed and AVG Velocity: Solving Skateboarder Problem
- Kadaj
- · Replies 2 ·
QM Compton scattering energy loss; check of derivation
- Ingwe
- · Replies 2 ·
Calculating Hill Height from Angle of Elevation: Trig Problem Solution
- courtrigrad
- · Replies 2 ·
What are some basic formulas and examples for friction and forces?
- nycon
- · Replies 2 ·
Demonstration and Newton's Laws
- Soaring Crane
- · Replies 5 ·
Position of Block When Spring Stops Pulling
- mochabcha
- · Replies 3 ·
Easy Pre-Calc Question - Natural Logs
- sjaguar13
- · Replies 2 ·
Chemical reaction of 2 H atoms.
- mfianist
- · Replies 3 ·
Calculating Current in a Circuit with Capacitors and Resistors
- vsage
- · Replies 2 ·
Special Relativity: Simultineity question
- vsage
- · Replies 2 ·
How Common Are Millionaires Among Ford Employees?
- Changoo
- · Replies 2 ·
Determine the magnitude of the normal force exerted by the table.
- Lilly
- · Replies 2 ·
Work to stretch a spring from 0.24 m to 0.312 m
- Electro
- · Replies 9 ·
How to get better at writing proofs
- matrix_204
- · Replies 7 ·
How Far Does the Fragment Land After a Mid-Air Explosion?
- cb
- · Replies 3 ·
Block down ramp colliding with spring
- TraceBusta
- · Replies 5 ·
What is the Component of the Plane's Velocity Perpendicular to the Ground?
- viendong
- · Replies 4 ·
Refractive Index and Angle of Refraction in Perspex Container Filled with Water
- benhorris
- · Replies 3 ·
What are the three tests for continuity?
- UrbanXrisis
- · Replies 8 ·
Find Value of K for Continuity of f(x) at x=1
- UrbanXrisis
- · Replies 2 ·
Conservation of Momentum.Boat Question
- mfianist
- · Replies 5 ·
Finding the Exact Values of tan 165 and tan 285 using sin and cos
- Maria
- · Replies 8 ·
Can velocity follow a sine curve if force does?
- UrbanXrisis
- · Replies 11 ·
Particle Motion: Units of Constants, Maximum Position and Speed
- strugglin-physics
- · Replies 2 ·
Solve cos²x = 2cosxsinx for x in 0 to 360 degrees
- Maria
- · Replies 5 ·
Normal and friction forces for 1350kg car with cable tension on inclined surface
- fibersnet
- · Replies 3 ·
How does the squeeze theorem prove that a limit exists?
- thennigar
- · Replies 4 ·
What are the forces and tension acting on the top of a connected block system?
- Alem2000
- · Replies 6 ·
Doing a Lorentz Transformation in the X-Direction
- fresh
- · Replies 3 ·
How can the wave speed of a rope with negligible stiffness be determined?
- Corneo
- · Replies 5 ·
Examples in which force is exerted on an object without doing work
- Faiza
- · Replies 10 ·
Projectile motion problem (on the moon)
- highwind7777
- · Replies 3 ·
Is f(x,t)=Acos(K(x-vt)+phi) a wave equation solution?
- leoflc
- · Replies 5 ·
Velocity at the bottom of an incline
- Tycho
- · Replies 8 ·
Verifying statements about wire resistance in simple circuits
- vsage
- · Replies 2 ·
Finding the weight of air above your head using atmospheric pressure
- Deeviant
- · Replies 4 ·
Calculating Maximum Height of a Rock Thrown Vertically Upward
- Hughey85
- · Replies 4 ·
How Do You Calculate the Speed of a Particle After a Collision?
- Enoch
- · Replies 5 ·
Electron-positron collision producing photons at 0.60c
- Phymath
- · Replies 6 ·
Solving a Spring-Ladle Problem: Work Rate at Equilibrium and Beyond
- HobieDude16
- · Replies 4 ·
Quick physics presentation with 10-minute demo for honors class
- Zack2005
- · Replies 2 ·
What are the equations of motion and how can calculus help understand them?
- roger
- · Replies 8 ·
What are the Permutations of the word 'Saskatchewan'?
- Dooga Blackrazor
- · Replies 4 ·
How do I calculate the normal and frictional forces on a box on an inclined plane?
- buffgilville
- · Replies 4 ·
Finding residues for multiple singularities and Cauchy principal value
- Hypnotoad
- · Replies 2 ·
How Does Speaker Placement Affect Sound Wave Interference?
- andrew410
- · Replies 5 ·
What is the tension in the lower cord?
- quick02si
- · Replies 16 ·
Understanding Index Notation in Engineering and Physics
- chusifer
- · Replies 5 ·
How Do You Calculate the X-Component Probability Distribution in Momentum Space?
- BLaH!
- · Replies 3 ·
Solving Spring Work Question: Part d
- HobieDude16
- · Replies 3 ·
Still more problems with Gauss Law
- stunner5000pt
- · Replies 4 ·
Tower Trig Problem: Find Height of Chimney
- Rocko
- · Replies 17 ·
Dielectric/Conductor Interface
- megan
- · Replies 4 ·
Integrating $\int\arctan 4t \,dt$ - Integration by Parts
- tandoorichicken
- · Replies 3 ·
How does chaos theory explain heart attacks?
- Kateena
- · Replies 2 ·
Simple Free Body Diagram question
- psycovic23
- · Replies 2 ·
Stopping Distance on dry pavement
- quick02si
- · Replies 11 ·
Calculating Average Power for a Ski Lift
- GingerBread27
- · Replies 5 ·
Finding a Tangent Plane on a 3D Surface
- Spectre32
- · Replies 3 ·
Tension on the table top pulley
- ptrainerjoe
- · Replies 2 ·
Equation of Tangent Line to y=cosx at a=pi/4
- UrbanXrisis
- · Replies 3 ·
Find Perpendicular Vector w/ Dot Product
- Spectre32
- · Replies 5 ·
Finding tension at the top of a vertical circle
- RumDragon
- · Replies 7 ·
Finding group velocity from phase velocity of surface ripples
- CollectiveRocker
- · Replies 13 ·
Does Bouncing a Baseball Help It Travel Faster?
- quality101
- · Replies 2 ·
A little bit beyond projectile motion.
- faust9
- · Replies 5 ·
Proving 1-1 Correspondence of I and J Sets
- Zurtex
- · Replies 2 ·
Integrating x³cos³(x) using integration by parts
- FancyNut
- · Replies 6 ·
Deciphering the Complexity of Group 1B Elements in the Periodic Table
- Math Is Hard
- · Replies 3 ·
Position of Block when Spring Stops
- mochabcha
- · Replies 2 ·
With what initial speed does he throw his first ball?
- mfk_1868
- · Replies 10 ·
Solving a Mechanics Problem: Equilibrium and Tension in a 160kg Box
- stephen
- · Replies 2 ·
What are the advantages of using an immersion heater at the top of a water tank?
- Janessa
- · Replies 2 ·
Calculating Fourier Coefficients and Series for f(x)
- broegger
- · Replies 5 ·
Managing stress during the COVID-19 pandemic
- Itachi
- · Replies 2 ·
Resolving forces along an inclined pipe held by two supports
- horseman
- · Replies 2 ·
Solving a Water Pump Problem: How Far Can 6.6 HP Pump Water at 220 gal/min?
- sjsustudent2004
- · Replies 2 ·
Physics HWK. Problem-Vertical Circular Motion
- shawonna23
- · Replies 2 ·
Banked Race Track Physics Problem: Max and Min Speeds without Friction
- shawonna23
- · Replies 2 ·
Position of Block After Applied Force of 2.8N
- mochabcha
- · Replies 4 ·
Finding uncertainties in parts A and B of lab analysis
- MoonsideMaster
- · Replies 2 ·
How Do I Solve a Natural Log for x?
- OpticDean
- · Replies 9 ·
Work and power needed to pull a 70 kg skier up a frictionless 30° slope
- doxigywlz
- · Replies 13 ·
Series (finding the interval of convergence)
- DivGradCurl
- · Replies 2 ·
Potential energy given to each coulomb of charge
- benhorris
- · Replies 2 ·
What force must provide the centripetal acceleration of the block?
- Winner
- · Replies 31 ·
Centripetal force and friction problem
- Necrosis
- · Replies 10 ·
Circular Motion, weights and gravitation
- dsandhu
- · Replies 5 ·
Orbits in inverse cubic force field with zero and nonzero energy
- Odyssey
- · Replies 2 ·
Problems with Work and Kinetic Energy
- chippercheeta
- · Replies 3 ·
Calculate Damping Coefficient of 50.0g Egg
- mlee
- · Replies 25 ·