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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How Do You Calculate the Tension in a Cable Supporting a Boom at an Angle?
- katiegerster
- · Replies 2 ·
Potential of a finite line of charge
- Mathoholic!
- · Replies 11 ·
Tension in cable supporting plank with wall pivot
- katiegerster
- · Replies 4 ·
Electric motor(calc. angular velocity
- antoman
- · Replies 6 ·
How Do You Calculate Motion and Forces in Physics Problems?
- katiegerster
- · Replies 4 ·
Solid sphere rolling without slipping down 1.35 m incline
- katiegerster
- · Replies 7 ·
Star rotation period after shrinkage and pulley system with two masses
- katiegerster
- · Replies 5 ·
Mass of an accelerated electron by 31 kV
- Prometium
- · Replies 1 ·
Star rotation period after contraction and pulley system forces
- katiegerster
- · Replies 1 ·
How Do Voltage Arrows Indicate Polarity?
- cytochrome
- · Replies 2 ·
Explaining friction in a rotational velocity apparatus lab
- DerekWeir29
- · Replies 1 ·
How Does A Ship Float on A Glass Of Water
- rittzlle
- · Replies 7 ·
Calculating tension on 3 wires/strings
- anonymous812
- · Replies 9 ·
Bypass time of satelite arround Mars
- antoman
- · Replies 10 ·
I want to know about electricity.i am facing a huge difficulty in it.
- Shashank tekri
- · Replies 3 ·
Why there are so many positive and negative ions in N and P types?
- anhnha
- · Replies 3 ·
Faraday's Law - very tricky question
- assaftolko
- · Replies 23 ·
Electric field inside PN junction in equilibrium
- anhnha
- · Replies 4 ·
How Do You Calculate the Acceleration of a Pulley System with Air Resistance?
- Evolution17
- · Replies 5 ·
Calculating Electric Potential Difference for Machinery Operation
- andy.tsang
- · Replies 5 ·
Puck sliding accross ice W/ friction and incline
- Evolution17
- · Replies 3 ·
Velocity Vector in Polar Coordinates (Kleppner p.30)
- Von Neumann
- · Replies 8 ·
Solving for n in a Summation Series
- mattyh3
- · Replies 17 ·
Whic topic can I study to solve the following mechanics problem?
- Ein Krieger
- · Replies 4 ·
Relativity along an axis in an inertial frame
- ZanyCat
- · Replies 7 ·
Why is my amplifier not working with my speaker?
- MacDaddio
- · Replies 26 ·
Voltage-current graph gradient with voltmeter across battery
- Steve12345
- · Replies 5 ·
Electric field inside a wire in a closed circuit
- anhnha
- · Replies 11 ·
Finding fmax in Thin Lens Refraction Problem
- icedragon
- · Replies 5 ·
What is the Concept of Drift Velocity in Electrons?
- anhnha
- · Replies 6 ·
Potential at centre of cylinder
- Saitama
- · Replies 40 ·
Prove this result Electrostatics
- utkarshakash
- · Replies 12 ·
Current reference direction confusion
- cytochrome
- · Replies 2 ·
Show how gravitational potential varies between the earth and the moon
- question dude
- · Replies 4 ·
Basic physics confusion in my structure
- x86
- · Replies 7 ·
Maximum force on 2.2 kg block on 3.2 kg block before top block slides
- x86
- · Replies 7 ·
How does earthing affect the distribution of charges on metal plates?
- Tanya Sharma
- · Replies 15 ·
Heat pump equilibrium temperature calculation
- Saitama
- · Replies 32 ·
Finding the force at which a box tips over on a frictional surface
- zeralda21
- · Replies 8 ·
Explosive separation with conservation of momentum and energy
- bkraabel
- · Replies 2 ·
Finding the direction and velocity of wind using vectors question
- shy9488
- · Replies 1 ·
Calculating Work and Potential Energy in a System of Point Charges
- carnot cycle
- · Replies 12 ·
Equations of motion ( vectors )
- sambarbarian
- · Replies 6 ·
Magnetic field strength in two wires
- swim-student
- · Replies 1 ·
3 dimensional cube finding an angle
- Toranc3
- · Replies 2 ·
Tough motion question with acceleration, time and distance
- incogserv
- · Replies 6 ·
Magnetic Force on a Power Line - Calculating Magnitude and Direction
- Annette123
- · Replies 10 ·
Bungy-jumper SHM: finding phase constant φ
- mexqwerty
- · Replies 10 ·
Brakes on a car-Energy related question
- alingy1
- · Replies 3 ·
Calculating Maximum Voltage in a circuit.
- QuickSkope
- · Replies 17 ·
Doppler shift for police radar reflecting off moving ambulance
- Roaku
- · Replies 5 ·
Magnetic field problem with two wires -
- Annette123
- · Replies 8 ·
Baseball projectile motion with fence height
- Animalgirl27
- · Replies 5 ·
Torque on a gymnast rotating around a high bar
- linds43
- · Replies 12 ·
Transforming momentum between inertial reference frames
- bkraabel
- · Replies 3 ·
Damped Electromagnetic Oscillations
- anthonych414
- · Replies 5 ·
I really deriving the equation for this?
- fitnessdaisy
- · Replies 1 ·
Bernoulli's equation and water pipe
- squires80
- · Replies 6 ·
Can Conservative Forces Be Neglected During Collision Analysis?
- Tanya Sharma
- · Replies 38 ·
Friction question, maximum incline
- Kinhew93
- · Replies 2 ·
Floating Iceberg Displacing 723m³ of Water
- Felafel
- · Replies 7 ·
Induced EMF in Rotating Magnetic Field with B=0.5B0z^
- assaftolko
- · Replies 5 ·
Heat gained and lost by aluminium and water in thermal equilibrium
- hkor
- · Replies 1 ·
What is the Velocity at the Bottom of a Roller Coaster with Given Parameters?
- nohkie
- · Replies 1 ·
Why Does the Mass Take 3.54s to Reach the Floor in This Torque Problem?
- AMacias2008
- · Replies 1 ·
Physical interpretations of Schrodingers equation
- Quantum_man
- · Replies 5 ·
Calculating the height of the water column
- taeyeong14
- · Replies 4 ·
How to Calculate the Volume of a Cylinder Using Ideal Gas Equation?
- marcio
- · Replies 2 ·
Conservation of Momentum and Kinetic Energy in Inelastic Collisions
- x86
- · Replies 4 ·
Force on foot when kicking a 0.5kg ball with 50N
- Superteemo
- · Replies 1 ·
Friction and Kinematics: Solving for Minimum Time on a Bridge
- RandomGuy1
- · Replies 4 ·
Projectile motion equations with initial speed and angle
- rakeru
- · Replies 3 ·
Why does the dot product formula give a scalar if we sum vectors?
- Von Neumann
- · Replies 4 ·
Change in u and h is for a piston cylinder device.
- nothingkwt
- · Replies 12 ·
How Do You Calculate the Final Speeds of Pool Balls After Collision?
- Kennedy111
- · Replies 5 ·
Which Ramp is Easier to Raise a 2kg Object? Find Out!
- adjacent
- · Replies 20 ·
Bucket being lowered vertically by a rope
- e-zero
- · Replies 9 ·
What Does a Magnet Period of 10cm Mean?
- clarinethero
- · Replies 3 ·
Required force to stop a moving object.
- aziiri
- · Replies 2 ·
Energy stored in capacitor when connected or disconnected from battery
- FollowTheFez
- · Replies 2 ·
Length of time to burn fuel in a fusion reactor
- clarinethero
- · Replies 4 ·
How do I calculate g-forces on a roller coaster?
- blackojacko
- · Replies 3 ·
Electromagnetism, finding magnetic field strength
- physics604
- · Replies 3 ·
Magnetic Fields from Two Infinite Sheets of Current
- pbstriker38
- · Replies 5 ·
Electromagnetism, current in coil
- physics604
- · Replies 4 ·
Solving for Mirror Displacement in a Michelson Interferometer
- Ryoblck
- · Replies 1 ·
Electromagnetism, finding velocity and acceleration
- physics604
- · Replies 2 ·
Intensity after different polarizers
- 567179551
- · Replies 7 ·
Finding acceleration in a kinematics problem
- shin777
- · Replies 10 ·
Very Vague Graphing Motion Problem
- rakeru
- · Replies 3 ·
How Are Eigenstates Determined for a Given Hamiltonian Matrix?
- Denver Dang
- · Replies 2 ·
2 Questions - Heating room air, and fuel combustion efficiency
- skrelt
- · Replies 3 ·
What is the weight and scale reading during elevator acceleration?
- e-zero
- · Replies 10 ·
How do you calculate the energy delivered by a capacitor
- sefsybabe
- · Replies 7 ·
Final velocity with air resistance
- enanthate
- · Replies 5 ·
Beam splitter with single photons
- physmatics
- · Replies 1 ·
Why is 1124.999... wrong if it equals 1125?
- Dante69x
- · Replies 1 ·
Can Energy Truly Displace Bodies in Motion?
- susskind99
- · Replies 20 ·
Kinetic Energy and Moment of Inertia
- RuthlessTB
- · Replies 1 ·
Single photons traversing a beam splitter
- physmatics
- · Replies 1 ·