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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Mechanics Question -- Ball bearing on top of an accelerating car
- JM samuel Liu
- · Replies 3 ·
Calculating Distance Traveled by a Honking Car and Echo
- B3NR4Y
- · Replies 18 ·
What's the energy of a rotating bearing?
- Karol
- · Replies 17 ·
Finding the Point of Zero Electric Field in an Equilateral Triangle of Charges
- SquidgyGuff
- · Replies 12 ·
Multiple thermodynamics problems
- JasonHathaway
- · Replies 3 ·
Solving a Relativistic Rocket Collision
- sour_kremlin
- · Replies 2 ·
Projectile Motion -- mountain jumper
- Scorry
- · Replies 2 ·
How Does Halving the Magnetic Field Affect Particle Displacement?
- kaspis245
- · Replies 7 ·
How to solve Rashba and Dresselhaus SOC Hamiltonian
- drFredkin
- · Replies 1 ·
Finding Angular Velocity & Max Force on Vertical Track
- JOhnosn
- · Replies 9 ·
Calculating Vector Quantity with Given Magnitude and Direction
- Physicsnoob90
- · Replies 9 ·
Dating a meteorite from potassium-40 decay ratio
- Rectifier
- · Replies 10 ·
Kinematics car acceleration question
- Janiceleong26
- · Replies 6 ·
Power Calc: Net vs Driving Force
- Janiceleong26
- · Replies 2 ·
Problem related to Coloumb's force
- gracy
- · Replies 57 ·
Determine the displacement of the object
- Manh
- · Replies 7 ·
How Does Projectile Motion Affect Speed and Angle on Impact?
- Beanie
- · Replies 2 ·
Optics Problem -- possible values for the object distance?
- TomInPhysics
- · Replies 1 ·
Calculating Time for Ball to Reach Fence Plane
- Beanie
- · Replies 1 ·
Artillery shell time of flight at 23.9° and 1530 m/s
- Beanie
- · Replies 10 ·
Cathode Ray Tube with magnetic field
- bob dobilina
- · Replies 13 ·
Can Foam Impact Damage the Space Shuttle?
- HCD
- · Replies 11 ·
Is my solution for a gravitational problem correct?
- WeiLoong
- · Replies 5 ·
Power required to rotate a disc in a fluid
- Achievementhunt
- · Replies 2 ·
Min force to lever to lift weight
- toforfiltum
- · Replies 16 ·
Archived Should Labs Be Written in Pen?
- ezfzx
- · Replies 2 ·
Does the plane strike the ground?
- Drub
- · Replies 5 ·
Water wheel model to describe current flow in a circuit
- Barclay
- · Replies 3 ·
Finding the image position using sighting pins in a plane mirror
- Barclay
- · Replies 19 ·
Brightness of bulbs in series and parallel
- Barclay
- · Replies 14 ·
Finding x component when vector points north of west
- Mr Davis 97
- · Replies 4 ·
How to find forces in wires at equilibrium
- harmyder
- · Replies 4 ·
Angular velocity after collision?
- naianator
- · Replies 25 ·
Projectile Motion: Calculating Speed of Ball Thrown from Third Floor Window
- Brainiac11
- · Replies 5 ·
Determine type of particle emitted from decay?
- bob dobilina
- · Replies 6 ·
Calculating Resultant Force of F3 in 3D Space
- Bluestribute
- · Replies 4 ·
What Is the Minimum Speed Required to Catch a Car Thief?
- astrololo
- · Replies 1 ·
How Many Light Years Must a Neutrino Travel for Observable Interactions?
- andydan1056
- · Replies 5 ·
Road trip average speed with two different segments
- Lana Elcic
- · Replies 40 ·
How Far Does a Ball Travel After Rolling Off an Incline?
- Scholar1
- · Replies 12 ·
Voltage Measurement in a Capacitor Circuit with AC Charging
- John4
- · Replies 6 ·
Why isn't R = B - D or R = A + C correct for this vector diagram?
- Beanie
- · Replies 3 ·
Solving an Optics Exam Problem: Interference Fringes
- Cynosura
- · Replies 9 ·
Alternating current peak value
- erisedk
- · Replies 2 ·
Ball swinging into a block: why is the block's velocity wrong?
- Drizzy
- · Replies 7 ·
What is the Work Done by a Heated Metal Rod?
- gracy
- · Replies 2 ·
Solving a DC Current Magnetic Flux Problem
- Ellispson
- · Replies 7 ·
Derive an equation for electric potential V(z) on z axis
- jackMybrain@ru
- · Replies 2 ·
Moments of a Ladder Propped Up Against A Wall
- Priyadarshini
- · Replies 23 ·
What Does W/(g2 cm3) Represent in Power Density Units?
- joshmorris
- · Replies 10 ·
Solve Dropped Samovar Problem w/ Physics HW
- icurryx3
- · Replies 21 ·
Coalesce of mercury dropssix at different potential
- AMRIT GAUTAM
- · Replies 7 ·
Minimum initial velocity for throwing a ball off a hemispherical rock
- diredragon
- · Replies 15 ·
What is the Time Interval Between Arrival of Wave Fronts at C' in S?
- BigFlorida
- · Replies 2 ·
How Is Impulse Calculated for a Rocket with Changing Mass?
- Alameen Damer
- · Replies 5 ·
Finding magnitude and distance of a particles acceleration
- Drub
- · Replies 7 ·
How do I find final velocity using conservation of energy
- Alameen Damer
- · Replies 4 ·
Did Galileo's Experiments Prove Aristotle Wrong?
- Viraam
- · Replies 22 ·
Putting an equation into y = mx+b form
- amanda.ka
- · Replies 16 ·
Problem of a tank with a trapezoidal section
- Queren Suriano
- · Replies 1 ·
Finding the direction of an electric field
- Raybulous
- · Replies 5 ·
Gold leaf electroscope problem
- gracy
- · Replies 37 ·
Conservation of energy word problem
- Alameen Damer
- · Replies 19 ·
How Big is the Oil Slick Created by Spilled Oil on a Lake?
- zelly15
- · Replies 1 ·
Is a 2D Badminton Projectile Model Sufficient for an IB Physics Extended Essay?
- Sewager
- · Replies 12 ·
Solid conductor sphere with cavity inside
- Rene Manzano
- · Replies 2 ·
Fundamental Frequency of 6m String Vibrating at 16.5Hz
- ElegantSir
- · Replies 5 ·
Specific heat capacity of calorimeter
- Pouyan
- · Replies 6 ·
Maximum deflection angle of 2kg particle in elastic collision
- lawrence1234
- · Replies 8 ·
Electric potential in a spherical cavity inside a charged conductor
- Rene Manzano
- · Replies 2 ·
Non-centered Rotating Arm with Hinged Weight
- DrTuring
- · Replies 5 ·
How do I calculate vector magnitude with given coordinates?
- andydan1056
- · Replies 1 ·
You have to recognize the formula for an LC circuit and its resonance frequency.
- Jimbob999
- · Replies 5 ·
Relativity of simultaneity and clock rates between observers
- Phynos
- · Replies 5 ·
Why do car and truck take equal time to stop after collision?
- faiziqb12
- · Replies 3 ·
Thermodynamics of mercury thermometers
- carlzz7
- · Replies 2 ·
Morin classical mechanics page 326 example
- almarpa
- · Replies 2 ·
Converting Units: Solving a Simple Density Problem
- Psip
- · Replies 4 ·
Projectile with Air resistance problem
- ZenchiT
- · Replies 37 ·
Calculating the Effective Spring Constant of a Charged DNA Molecule
- Kdapik
- · Replies 3 ·
Finding the fastest route to a forest cabin
- PAstudent
- · Replies 13 ·
Finding the magnitude of 2 vectors given the resultant
- Mallorie
- · Replies 1 ·
Acceleration of ball due to gravity
- DeathEater
- · Replies 7 ·
Determining the height of an angled projectile after 10m
- clairakitty
- · Replies 1 ·
Determine acceleration from velocity-position plot
- bkw2694
- · Replies 6 ·
Vectors given the resultant and angle
- Mallorie
- · Replies 1 ·
Finding Speed of Neutron after Decay
- bob dobilina
- · Replies 33 ·
Calculating Current and Voltage in a Circuit with Multiple Resistors
- nothing909
- · Replies 55 ·
Where Did F = dp/dt Originate?
- NooDota
- · Replies 1 ·
How Does Air Pressure Affect Curveball Distance in Different Ballparks?
- Alex Noel Cueto
- · Replies 2 ·
Angular Momentum in a pulley-block system
- Zynoakib
- · Replies 1 ·
Just trying not to look like an idiot to my wife
- JeremyCB
- · Replies 10 ·
Finding 2 of 3 Forces Given 1 and a Resultant
- cadcdac
- · Replies 9 ·
How to Solve an Ideal Gas Equation Problem with Changing Tire Pressures?
- Luchekv
- · Replies 7 ·
Tension in cable for descending elevator with downward acceleration
- Viraam
- · Replies 36 ·
Torque calculation for a classroom door handle
- Viraam
- · Replies 41 ·
Curl of the vector potential produced by a solenoid
- phy124
- · Replies 9 ·
Finding refractive index and interference order from microwave reflection
- SataSata
- · Replies 5 ·
Cylinder with point mass angular momentum
- D412
- · Replies 5 ·
Conducting sphere within a conducting shell
- Beatrix
- · Replies 3 ·