Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Glancing Collision and Kinetic Energy
- njuice8
- · Replies 1 ·
Finding the height of a body through conservation of energy
- MichaelDunlevy
- · Replies 6 ·
What Determines Sound Properties in a Water-Filled Bottle Xylophone?
- LP23
- · Replies 1 ·
Why do capacitor equations have q=Q(1-e^-t/RC) and q=Qe^-t/RC?
- arthur01
- · Replies 4 ·
Popeye pulling himself up using a pulley
- totallyclone
- · Replies 14 ·
Angular acceleration of two fastened cylinders with hanging ropes
- lila.haj
- · Replies 8 ·
What are the initial velocities of two vehicles after a glancing collision?
- njuice8
- · Replies 1 ·
Magnetic Field of a bent infinite wire
- evanclear
- · Replies 5 ·
Collision and Kinetic Energy Problem
- njuice8
- · Replies 1 ·
Photon emitted when proton changes state
- wahaj
- · Replies 2 ·
Calculating Torque for Parliament Clock Tower Hands at 3:01
- AeroVector
- · Replies 13 ·
What are the cord tension and force on the hinge for this angled beam?
- hangingwire
- · Replies 4 ·
Energy of relativistic particle in LHC
- Saitama
- · Replies 3 ·
Energy stored by a point charge
- kayethetutor
- · Replies 2 ·
Does a Roller Coaster Conserve Mechanical Energy?
- Jabababa
- · Replies 5 ·
Calculating Electric Charge: Find the Current in a Wire
- Colts
- · Replies 2 ·
Two Infinitely Long Perpendicular Wires
- trevor51590
- · Replies 10 ·
How big is the friction force on the truck?
- chicagobears34
- · Replies 9 ·
Finding the distance of a space shuttle using radio wave transmissions
- OnceKnown
- · Replies 3 ·
Potential Difference ( Battery + Motor )
- Siune
- · Replies 8 ·
Frictionless pully acceleration
- CollegeStudent
- · Replies 5 ·
What is the Tension in Each Cable Supporting the Lamp?
- CollegeStudent
- · Replies 6 ·
Conservation of momentum problem regarding a missing mass of a ship
- MichaelDunlevy
- · Replies 3 ·
Photons fired from the back of a moving spacecraft
- Morgan8i6
- · Replies 2 ·
Gr12 charge attraction repulation question
- oneshot
- · Replies 2 ·
Rotational dynamics - direction of friction
- jaumzaum
- · Replies 3 ·
Heat Transfer Through a Styrofoam Container
- Erubus
- · Replies 1 ·
Finding The Dielectric Constant
- Bashyboy
- · Replies 3 ·
Work done by torque on a wrench with a nut
- Saitama
- · Replies 6 ·
Stone thrown upward from 30 m cliff: time to reach ground
- RuthlessTB
- · Replies 3 ·
Why do two stars in space have decreasing speed and acceleration as they separate?
- idllotsaroms
- · Replies 7 ·
Thermodynamics - Saturated Vapor Quality Question
- MechE2015
- · Replies 3 ·
What circumstances avoid a power factor below 0.8?
- physics97
- · Replies 8 ·
Why substitute ΔQ differently for line charge vs ring charge
- johnnyboy53
- · Replies 4 ·
Circuit with two batteries and three resistors - Find current
- jperentosh
- · Replies 2 ·
What happens to the resonant frequency of a wine glass as you fill it
- 06mangro
- · Replies 1 ·
Understanding Car-Wall Collisions: Net Force and Assumptions
- Jabababa
- · Replies 4 ·
Size of pipe needed to transport helium problem
- AlaskanPow
- · Replies 1 ·
How Do You Calculate the Initial Velocity of Water from a Drinking Fountain?
- hn13
- · Replies 1 ·
Using Advanced Dynamics to find the Force Applied of a Truck
- QuickSkope
- · Replies 17 ·
Why Do Sound Waves Travel Faster in Steel Than in Air?
- CanMousePlate
- · Replies 2 ·
Curling simulation position functions
- Delphi51
- · Replies 2 ·
Pebble stuck in tire: when does static friction fail?
- lila.haj
- · Replies 1 ·
Minimum force to overcome static friction
- idllotsaroms
- · Replies 2 ·
Do we need any assumption when using Newton ring's formula ?
- Outrageous
- · Replies 1 ·
Finding the Distance between fringes given different wavelengths
- rocapp
- · Replies 11 ·
Musical frequencies, harmonic or nonharmonic?
- Inquiring_Mind
- · Replies 1 ·
Static Equillibrium. [T=0, [F=0? Problem finding force using component
- hangingwire
- · Replies 4 ·
Moment and tension problem maybe
- suchal
- · Replies 6 ·
Simple displacement and acceleration question
- jaydnul
- · Replies 3 ·
How does the earth exert gravitational pull on the sun
- ASidd
- · Replies 6 ·
Tension in string - hanging block
- tony873004
- · Replies 3 ·
Question related to heat and thermal energy
- oldezwe
- · Replies 1 ·
Force exerted by a current carrying wire
- Roodles01
- · Replies 4 ·
Calculating Building Height: Quick Kinematics Question
- Cookies?
- · Replies 3 ·
Finding the Angle Between Two Forces
- Astrum
- · Replies 6 ·
If the mass of the moon were tripled and it was moved to half as far f
- oneshot
- · Replies 3 ·
Work/Kinetic energy, running a race with mass and speed
- Willy_Kingston
- · Replies 2 ·
Momentum Planetary Motion Problem
- Plutonium88
- · Replies 4 ·
Power dissipation in a circuit (Kirchoff's Laws)
- Renaldo
- · Replies 13 ·
Linear Motion: 0.525kg Ball Travels 200m in 10s
- revults
- · Replies 4 ·
Current direction when wire moves left in magnetic field
- orangefruit
- · Replies 3 ·
A uniform spring whose unstretched length .
- Estrex
- · Replies 4 ·
Potential difference in a uniform electric field
- member 392791
- · Replies 1 ·
2 dimensional projectile motion with rifle and bullet
- Painguy
- · Replies 1 ·
Fluid mechanics - Water flowing through a pipe
- theBEAST
- · Replies 3 ·
Do noise-cancelling headphones use spatial or temporal interference?
- InvalidID
- · Replies 1 ·
Finding terminal voltage given two batteries
- taylorivy
- · Replies 2 ·
Final image distance using lenses
- kiwi101
- · Replies 1 ·
Simple gravitational force problem (Gregory Classical Mechanics)
- mathmonkey
- · Replies 5 ·
Parallel boat to dock jump. Sense of Humor required
- burton95
- · Replies 4 ·
Maximum angular velocity and free body diagram
- fredrogers3
- · Replies 7 ·
Force and potential energy function
- bdh2991
- · Replies 2 ·
What is the tension in a system of 2 pulleys when acceleration is 0?
- Member69383
- · Replies 2 ·
Vectors in Volleyball (finding distance ball will go)
- cd79443
- · Replies 2 ·
Moving a point charge out of a cavity in a conductor
- Momentous
- · Replies 2 ·
What is the Length of an Aluminum Rod Creating a Standing Wave at 6180 Hz?
- SpringWater
- · Replies 6 ·
Relative Velocity of Bolt in Elevator
- Toranc3
- · Replies 5 ·
How Far Does Superwoman Travel in the First 8 Seconds?
- kencamarador
- · Replies 1 ·
Tension of the rope with 2 objects
- cmkc109
- · Replies 8 ·
Static equilibrium against a wall
- robertmatthew
- · Replies 20 ·
Electric Field Direction at 14.1 cm from a Charged Cylinder and Conducting Shell
- SpringWater
- · Replies 4 ·
Acceleration and velocity problem.
- kencamarador
- · Replies 1 ·
Question on the nature of induction
- hamhamt
- · Replies 3 ·
Finding the Center of Percussion
- bd2015
- · Replies 3 ·
What is the instantaneous speed at t=30 minutes on the given graph?
- Zashmar
- · Replies 9 ·
Heat engine: moles/temp unknown
- joe_cool2
- · Replies 2 ·
How to find wavelength with only distance
- PhizKid
- · Replies 4 ·
Two balls are thrown vertically upward, one with an initial speed twic
- cmkc109
- · Replies 12 ·
Center of Mass and Linear Momentum
- iAmKhanz
- · Replies 4 ·
Determine current using Kirchoff's Junction/Loop Rule
- Renaldo
- · Replies 2 ·
Solving for T in an acceleration equation
- kencamarador
- · Replies 5 ·
Speed of Block after Newton's Second Law
- idllotsaroms
- · Replies 1 ·
A lot of considerations about the Bohr's Hydrogen Atom
- jaumzaum
- · Replies 3 ·
What Causes Energy Loss in Cables?
- salihdemir
- · Replies 3 ·
Earth orbiting around sun - finding speed with known mass and radius
- EvaSindelarova
- · Replies 4 ·
Circular Motion and Static Friction Problem The Wall of Death ride
- jklops686
- · Replies 4 ·
Banking curve problem (find maximum speed)
- 5ymmetrica1
- · Replies 4 ·
A mass of 30kg on a smooth horizontal table is tied to a cord running
- cmkc109
- · Replies 8 ·