Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
L-C-R Circuit - finding current
- ttiger2k7
- · Replies 2 ·
Quick vector question (involving coulomb's law)
- Terp
- · Replies 14 ·
What is the electric field at the center (in N/C)?
- NegaChin
- · Replies 4 ·
What is the Specific Entropy of Ice?
- physics_newbi
- · Replies 7 ·
What is the electric field at point P with given coordinates?
- ~christina~
- · Replies 9 ·
Carnot engine working in reverse poblem-
- LandOfStandar
- · Replies 12 ·
Deriving formulas for radial visualization of 3D and 8D samples
- jst
- · Replies 1 ·
Derive an expression for the tension in the cord
- lightfire
- · Replies 2 ·
Max Power of Resistor in 3-Resistor Circuit
- complexc25
- · Replies 3 ·
Max Initial Separation for Meeting of Two Moving Bodies
- Mr Virtual
- · Replies 1 ·
Websites about velocity of sound for Report Intro.
- TFM
- · Replies 3 ·
Maximum height an insect can crawl up a hemispherical bowl with friction
- Mr Virtual
- · Replies 1 ·
Bulb Energy Transfer: How Does Voltage Affect Filament Breakage?
- Kushal
- · Replies 4 ·
Ball on two strings, rotating around a rod
- chiurox
- · Replies 1 ·
Solve Water Flow in Pipes: Pressure on 2nd Floor
- skier07
- · Replies 5 ·
Calculate the wavelength problem
- NAkid
- · Replies 1 ·
Finding the phase angle in a cosine wave equation
- NAkid
- · Replies 1 ·
Magnetic field and current of solid wire
- gills
- · Replies 15 ·
2 concept questions on magnetism.
- jcpwn2004
- · Replies 2 ·
Banked circular highway curve with radius 200m at 45 km/h
- chiurox
- · Replies 1 ·
Find the Charge Needed for a 1.20V Voltage at 5.0m
- NegaChin
- · Replies 6 ·
Circular Motion - Wall of death Problem
- blackbird2552
- · Replies 4 ·
What Determines When a Metal Ball Leaves an Oscillating Tray?
- iwonde
- · Replies 1 ·
How Does the Angle of an Incline Affect Acceleration?
- aege125
- · Replies 1 ·
What is the Period and Amplitude of a Pendulum on a Rocket?
- iwonde
- · Replies 2 ·
Battery Operation: How Charges Move Inside a Closed Circuit
- lisamay44
- · Replies 3 ·
Calculating Weight of an Astronaut in Orbit
- greyradio
- · Replies 7 ·
Energy Transfer by Work from Steam to Piston - 5kg Steam Expansion
- madahmad1
- · Replies 2 ·
What is the amount of steam needed to heat 0.50kg of diet cola to 90 deg C?
- 03cobra 87gn
- · Replies 10 ·
Can someone explain electric fields and field lines?
- St@rbury
- · Replies 2 ·
What is the potential of the final location of the charge?
- NegaChin
- · Replies 3 ·
Electrostatics: Potential of +28.0 nC Sphere in Vacuum
- NegaChin
- · Replies 1 ·
Mechanical sinusoidal transverse wave
- NAkid
- · Replies 3 ·
Confusing (but surely simple) gravity problem
- vysis
- · Replies 2 ·
Dot product of two vectors with 49° angle between them
- chocolatelover
- · Replies 2 ·
Calculating radial magnetic flux density from axial measurements in a solenoid
- surendhar
- · Replies 1 ·
Calculating Work - With Friction
- vertciel
- · Replies 7 ·
Why Is a Bullet More Damaging Than Falling Out of Bed?
- blue_phoenix
- · Replies 4 ·
Finding the currents of four resistors in a circuit.
- vertabatt
- · Replies 15 ·
Speed measurements from dropping mass through light gate
- Steph191290
- · Replies 3 ·
How Is the Total Angular Momentum of a Rotating Dumbbell Calculated?
- chiurox
- · Replies 2 ·
What Is the Phase Angle of a Wave Traveling on a String?
- physicsgrouch
- · Replies 1 ·
How do I determine T1 and T2 in this concurrent forces diagram?
- Ry122
- · Replies 5 ·
Calculating Zeff in Xenon (Z=54) for M (n=3) Shell
- xinlan
- · Replies 2 ·
Total Possible Quantum States When n = 2
- xinlan
- · Replies 2 ·
Question with gravity, speed, heights
- ital_dj
- · Replies 5 ·
What is the sample's specific heat?
- Arejang
- · Replies 1 ·
Calculating Angle of Saturn from Earth Using a Refracting Telescope
- Fizzicist
- · Replies 4 ·
How Does Immersing a Glass Rod in Water Affect Image Formation?
- Fizzicist
- · Replies 1 ·
How High Does Block m1 Rise After an Elastic Collision with m2?
- sailsinthesun
- · Replies 2 ·
Force needed to keep 12.5 kg mass at rest on pulleys
- checkmarks
- · Replies 1 ·
How much work? Given speeds and mass
- ital_dj
- · Replies 4 ·
Solve Difficult Problem: Average Density of Rectangular Parallelopiped
- jrzygrl
- · Replies 2 ·
Why Is My Coefficient of Friction Negative?
- Below
- · Replies 4 ·
How Much Additional Mass Can a Suspended Walkway Carry?
- jrzygrl
- · Replies 2 ·
How Does Conservation of Momentum Apply in a Frictionless Sled Problem?
- PatsObi
- · Replies 1 ·
Basic force question(should be too easy)
- aaquib
- · Replies 5 ·
What Physics Principles Govern Bullet Impact on a Pivoting Target?
- bjonesp
- · Replies 1 ·
Don't have point B (cycle process)
- ~christina~
- · Replies 36 ·
How do you find torque for a particle at a specific point using vector products?
- Sheneron
- · Replies 2 ·
How High Could a Person Jump on Pluto Compared to Earth?
- lawfulgm
- · Replies 3 ·
What is the work done on the jet by the catapult?
- cocotown22
- · Replies 3 ·
What Angle Should a Curve Be Banked for Frictionless Cornering?
- paolo_c10
- · Replies 10 ·
Calculate the speed of a satellite
- Eros
- · Replies 2 ·
What forces act on an elevator accelerating upward?
- dranseth
- · Replies 3 ·
Coursework - Gravitational Field Strength
- XiaoII
- · Replies 2 ·
How do I calculate the total torque exerted on a rotating disk?
- Sheneron
- · Replies 4 ·
Time for Cylinder to Travel Roll Down Incline
- seichan
- · Replies 4 ·
What voltage appears across the primary coil of this transormer
- carrieunder
- · Replies 3 ·
Why doesn't the solenoid flux density formula account for distance from center?
- rock.freak667
- · Replies 2 ·
What Is the Concept of a Battery and How Does It Work?
- asura
- · Replies 3 ·
Projectile Motion Problem with thrown ball
- KMjuniormint5
- · Replies 13 ·
Newton Mechanics vs Special Relativity Problem
- Kaleb
- · Replies 1 ·
SLI webinar: Solving the Adiabatic Balloon Problem
- lesodk
- · Replies 2 ·
Force applied: calculating increase in temperature (work mostly done, )
- spidey64
- · Replies 1 ·
Angular Momentum of Particle in Hollow Half-Ball: Calculation
- radagast_
- · Replies 2 ·
Solve Gas Laws Questions: Density, Mass, Volume, Pressure
- tommy1
- · Replies 3 ·
What Direction Must the Magnetic Field Point?
- n77ler
- · Replies 2 ·
Magnetic Field of wire carrying current
- Gear300
- · Replies 6 ·
Finding the Distance Between Electrons in Equilibrium: What is the Solution?
- johnnico6426
- · Replies 2 ·
Topic about masses (modern physics)
- tarekkkkk
- · Replies 4 ·
Coefficient of Friction involving weights
- Erickimiscool
- · Replies 14 ·
How Deep Can a Diver Go with a Snorkel Based on Lung Pressure Differential?
- Moe*
- · Replies 1 ·
Ball cut from vertical circle: finding horizontal displacement
- phillip98
- · Replies 6 ·
Centripetal Force Airplace Problem
- Shackleford
- · Replies 10 ·
Angular speed of wrapper string
- seroth
- · Replies 1 ·
Proof of Relationship in Parallel Circuit Using Kirchoff's Law
- soul5
- · Replies 1 ·
Calculating Pressure Difference in a Vertical Water Pipe
- jrzygrl
- · Replies 2 ·
Why is the magnetic field uniform inside a hole in a current-carrying wire?
- Fusilli_Jerry89
- · Replies 1 ·
Magnetic Field inside and external to a wire
- Gear300
- · Replies 1 ·
Is Time Dilation Symmetrical in Relativity?
- calculus_jy
- · Replies 20 ·
Deriving Power Expression for Transverse Traveling Wave
- Master J
- · Replies 2 ·
Translational kinetic energy of hydrogen gas and temperature of moving container
- lesodk
- · Replies 4 ·
Force Problem with coefficient of static friction
- Nanuven
- · Replies 10 ·
Ship navigation problem with bearing and displacement
- TheKovac
- · Replies 5 ·
Finding angular frequency in electric circuit
- sodper
- · Replies 1 ·
Finding potential at certain points in circuit
- sodper
- · Replies 5 ·
Non-constant Acceleration has me stumped.
- philll
- · Replies 1 ·
Problem-Solving: Determining Force of a Submerged Block with Density and Volume
- jrzygrl
- · Replies 2 ·