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 Point Charge Problems: Tips and Help for Electrical Fields
- jn.4846
- · Replies 1 ·
Applying KVL: Understanding the Process and Confusions
- sciman
- · Replies 3 ·
Understanding Phasors: How to Sketch a Voltage Phasor in Polar Form
- sciman
- · Replies 11 ·
Weight of an Object on another Planet
- NkaujHelp
- · Replies 1 ·
DQ/dt=kA(dT/dx) = Heat Transfer. What is Q(t) Solution ?
- Point Conception
- · Replies 15 ·
Induced current from changing magnetic field
- iharuyuki
- · Replies 2 ·
Thevenin technique solving problem -- getting wrong answer
- sciman
- · Replies 2 ·
Ladder on rough ground against rough wall
- Yoonique
- · Replies 6 ·
Case when there is no normal force in spite of contact
- gracy
- · Replies 28 ·
What'a difference between TEM wave and plane wave?
- baby_1
- · Replies 3 ·
(simple?) question on number of molecules in an area
- rwooduk
- · Replies 2 ·
How much does the raft move with change of position?
- ninesixfive
- · Replies 4 ·
Calculate resistance from resitivity
- iharuyuki
- · Replies 2 ·
How to interpret the given informations in physics problems
- gracy
- · Replies 16 ·
Direction of induced EMF in loop
- iharuyuki
- · Replies 2 ·
How many balloons can be filled from the cylinder
- cricket0140
- · Replies 6 ·
How to convert power to energy in a heat pump problem?
- Tangeton
- · Replies 4 ·
Rotating Disk and two students?
- MaximumPhysics
- · Replies 11 ·
Ball roll down from the top of a rough spherical dome
- Yoonique
- · Replies 24 ·
Harry Potter's Physics on a Rotating Turntable
- a.303
- · Replies 3 ·
Definition of gravitational potential
- Rohan1997
- · Replies 10 ·
How Coulomb's Law relates to generators? (voltage)
- Celina
- · Replies 1 ·
How Do You Apply Coulomb's Law to Calculate Forces in a 3D Coordinate System?
- CaptainOfSmug
- · Replies 1 ·
Two masses on two inclined planes -- What is magnitude of velocity
- spacetimedude
- · Replies 4 ·
Magnetic Field Strength in a Solenoid at t = 1 ms
- vysero
- · Replies 2 ·
Two Weighted Pulleys with a Suspended Mass
- steakums
- · Replies 3 ·
Two charges and electric field?
- Ginepri
- · Replies 1 ·
What are the forces acting on a sliding box?
- SelenaT
- · Replies 2 ·
Conceptual Questions Regarding the Dynamics of Heat Transfer
- zak.hja
- · Replies 9 ·
Tangential, Radial and total acceleration
- Robert0606
- · Replies 1 ·
Maximizing range of projectile on a wedge
- AlephNumbers
- · Replies 3 ·
Calculating Torque of Parallel Forces on Rod
- nishanth R
- · Replies 1 ·
Why Is Static Friction Acting on Block B?
- gracy
- · Replies 17 ·
With what acceleration 2m will move?
- kaspis245
- · Replies 3 ·
Lost Kinetic Energy in Inelastic Collision of Putty and Pivoting Rod
- kingsmaug
- · Replies 3 ·
Understanding SHM: Solving Difficult Homework Problems
- PhysicStud01
- · Replies 25 ·
How Does the Velocity of a Falling Disc's Centre Change with Height h?
- mooncrater
- · Replies 13 ·
Find distance fallen given time of fall
- Spenceriscool
- · Replies 3 ·
Two oppositely charged wires and their capacitance
- mooncrater
- · Replies 4 ·
Why Are There Different Formulas for Wave Velocity?
- mooncrater
- · Replies 2 ·
Difference Between Dimensional & Dimensionless Physical Constants
- nishanth R
- · Replies 5 ·
Kinetic energy of Earth and ball system
- lkijmj
- · Replies 3 ·
Find the equilibrium position of the winch
- datanhlg
- · Replies 1 ·
Find the weight of a sphere connected to a pulley and to wall
- MaiteB
- · Replies 18 ·
Electric field of a non-conducting shell
- motyapa
- · Replies 1 ·
Newtons Third Law Involving three objects
- ImranyZ
- · Replies 2 ·
Two Blocks Inelastic Collision with Spring
- radiantvibe
- · Replies 6 ·
Best angle to shoot a projectile
- Calpalned
- · Replies 4 ·
How Do Capacitors Behave in a DC Circuit?
- Jamessamuel
- · Replies 2 ·
What Inductance Value Is Needed for a Light Bulb in a 240V AC Circuit?
- NoSniping
- · Replies 11 ·
What is the direction of the red ball's angular momentum
- Westin
- · Replies 27 ·
The applied and friction forces of a particle
- Edd988
- · Replies 10 ·
Speed of Muons, calculate KE and Momentum
- rlc
- · Replies 21 ·
How many bricks can be put without disordering the equilibrium
- MaiteB
- · Replies 32 ·
How High Must a Ball Be Launched to Clear a School Roof?
- DatAshe
- · Replies 8 ·
A ball of mass m is thrown with a velocity v at a disk
- Westin
- · Replies 4 ·
RCL Circuit: 2 Resistors, 1 Capacitor, 2 Inductors
- B. Vane
- · Replies 5 ·
Entropy and thermodynamics question
- Steve1019
- · Replies 1 ·
Calculating Density of a Substance | Homework Help
- PhysicStud01
- · Replies 3 ·
What focal length is needed for a 0.60x magnification with a diverging lens?
- Taylor Marks
- · Replies 2 ·
Ball thrown off the top of a hill, ball hits hill
- Jazzman
- · Replies 2 ·
Finding the expression for momentum.
- aracali
- · Replies 3 ·
Relative Motion Analysis: Acceleration of rotating disk
- _N3WTON_
- · Replies 3 ·
Finding Maximum Power Delivered to Resistor
- jinger
- · Replies 1 ·
Solve Unknown Capacitance from Series Capacitors & Battery Charge
- Angie K.
- · Replies 3 ·
Light and Optics: Shoplifter's Distance and Height
- Taylor Marks
- · Replies 1 ·
Calculating Tension in Friction & Pulley: Solving for a=3 m/s^2
- Calculus Master
- · Replies 93 ·
Doppler Effect and the speed of sound
- Potatochip911
- · Replies 3 ·
Electron's trajectory in positively charged hollow cylinder
- Mary001
- · Replies 3 ·
Electric field due to 2 charged spheres
- Yoni V
- · Replies 7 ·
Capacitor Network: C1,C2 & C3 in Series & Parallel
- GoldWing
- · Replies 3 ·
Find Width of Slit for Diffraction Maxima
- Seigi Yokota
- · Replies 3 ·
Kenetics torque tension acceleration question
- electro82
- · Replies 15 ·
Understanding Gravitational Fields: Patterns, Potentials, and Velocity
- BoanviaFx
- · Replies 2 ·
Calculating RI of Oil w.r.t Air with Apparent Depth of Liquid
- Suraj M
- · Replies 8 ·
Double Slit Interferance Intensity
- JJK1503
- · Replies 3 ·
Half life and percentage remaining
- nmsurobert
- · Replies 4 ·
Block moving towards movable wedge
- Yoonique
- · Replies 18 ·
Slipping block on a slipping ramp: final speed
- DavideGenoa
- · Replies 5 ·
Solving Question 3: Is the Fulcrum Lifting the Load?
- snav96
- · Replies 4 ·
What happens to forces in biomechanics when an object is starting to tip?
- snav96
- · Replies 3 ·
Tension Rope and Blocks Problem
- DaveTan
- · Replies 4 ·
Redistributed Charge (Capacitors)
- Angie K.
- · Replies 7 ·
Why isn't the force in the direction of the velocity in the equation F=P/v?
- Mr Davis 97
- · Replies 9 ·
Why Can External Road Forces Be Neglected in a Collision Analysis?
- Westin
- · Replies 7 ·
Length of Wire Effect on Current and Inner Electric Field.
- alingy1
- · Replies 4 ·
Plank with block of mass on top executing vertical SHM
- andyrk
- · Replies 78 ·
Compressed spring between two particles
- AlephNumbers
- · Replies 2 ·
Static Equilibrium: Finding Coefficient of Friction with Torque Analysis
- SnakeDoc
- · Replies 1 ·
What's Wrong with My Force Analysis in These FBDs?
- minimario
- · Replies 6 ·
What are some sources of error in this physics lab?
- Sheena
- · Replies 1 ·
Normal Force While Sliding Off Ice Dome
- Cube Equation
- · Replies 13 ·
Two MC Special Relativity Questions
- shmijda
- · Replies 7 ·
Thermodynamics equilibrium problem
- integ8me
- · Replies 5 ·
How Do I Calculate Wavelength in an AC Circuit?
- Durley
- · Replies 3 ·
Normal Forces Between Two People on Top of each other
- Soniteflash
- · Replies 8 ·
Do you consider both regular and rotational kinetic energy?
- fangrz
- · Replies 1 ·
Tunneling with an alpha particle
- Differentiate1
- · Replies 6 ·
Magnetic Potential & Magnetic Field
- MMS
- · Replies 2 ·
Removing The Dielectric From A Parallel Plate Capacitor
- BOAS
- · Replies 4 ·