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 a Motion Problem with Work-Energy Theorem
- Philip551
- · Replies 23 ·
Electric field of a charged cylindrical shell integral
- zenterix
- · Replies 7 ·
How does soap water membrane thickness affect surface tension?
- Chain Shawn
- · Replies 2 ·
Induced polarization for collision between conducting spheres
- member 731016
- · Replies 4 ·
Flux from magnet (Why is the Flux not zero through the loop?)
- member 731016
- · Replies 9 ·
Motion with acceleration forward while velocity increases backward
- paulimerci
- · Replies 19 ·
Acceleration of Uranium 238 ion through a potential difference
- Nway
- · Replies 27 ·
Why does this not work? Projectile Motion problem for Dynamics Class
- DioMiner
- · Replies 19 ·
Why is the Length Element in Ampere's Law Perpendicular to the Current?
- Nway
- · Replies 32 ·
Electrostatic equilibrium problem
- member 731016
- · Replies 6 ·
Derivation for capacitance of cylindrical capacitor
- member 731016
- · Replies 2 ·
Is there an alternate symbol for mu for x 10^-6 ?
- Nway
- · Replies 2 ·
Why are my answers about temperature and gas properties wrong?
- dorothy
- · Replies 12 ·
Why is temperature constant after gas has expanded?
- vcsharp2003
- · Replies 33 ·
Finding ##v## for four particles after being released from square
- member 731016
- · Replies 24 ·
Finding the final speed of a space probe using work and kinetic energy
- aqryus
- · Replies 7 ·
Is the Theory of Conservation of Information Faulty?
- bkelly13
- · Replies 14 ·
Torque calculation for a compound pendulum
- charon_9
- · Replies 15 ·
Net work and kinetic energy (pushing a wagon to accelerate it)
- aqryus
- · Replies 1 ·
Finding an Equation for Measuring Reactive Force at the Gastrocnemius
- Richard90
- · Replies 18 ·
Why use conservation of energy instead of F=ma for a current-carrying rod
- member 731016
- · Replies 15 ·
Calculating Linear Charge Density of a Cylinder
- chichiba
- · Replies 1 ·
Finding a Parametric Solution for Particle Trajectory in Magnetic Field
- kuruman
- · Replies 3 ·
Which statement is true? (Velocity and Acceleration of a Tennis Ball)
- paulimerci
- · Replies 68 ·
Discontinuous voltage graph for bullet going through metal coils
- member 731016
- · Replies 2 ·
Why is the origin at the left of the rod, not the center?
- member 731016
- · Replies 13 ·
B-field for a half-infinitely long wire
- member 731016
- · Replies 9 ·
Fluid Forces in a Manometer: Understanding Pressure and Kinetic Energy
- DumpmeAdrenaline
- · Replies 2 ·
Solving a V-vs-s Problem: John's Quandry
- John Mohr
- · Replies 11 ·
Max speed of proton in cyclotron
- member 731016
- · Replies 7 ·
Finding velocity for projectile given distances and launch angle
- aqryus
- · Replies 3 ·
Graphing electric potential for two positive charges
- member 731016
- · Replies 16 ·
Fictitious forces on a rigid body
- chris25
- · Replies 9 ·
Which system to apply conservation of momentum to?
- chris25
- · Replies 2 ·
How do I find way of comparing the density of the Earth and the Moon?
- DANIELWR1998
- · Replies 9 ·
Solving for Simple Harmonic Motion: A Picture Problem
- zenterix
- · Replies 1 ·
Electrostatics homework problem help
- Robin288
- · Replies 12 ·
Integrating electric field of rod
- member 731016
- · Replies 25 ·
I cannot work out constants a and b --
- Jga3
- · Replies 4 ·
Is the Instantaneous Circle Proven When Centripetal Force is Removed?
- Nway
- · Replies 6 ·
How do I accurately calculate work done against friction?
- Elara04
- · Replies 11 ·
Average force when a bouncy ball collides with surface
- String theory guy
- · Replies 23 ·
How does relativity affect the detection of atmospheric muons?
- L_ucifer
- · Replies 11 ·
How Do You Determine Equivalent Capacitance in Complex Circuits?
- jolly_math
- · Replies 6 ·
Standing wave, phase and antiphase
- maxelcat
- · Replies 7 ·
Difference in Wave Phase Question
- thatguy4000
- · Replies 8 ·
Volume-pressure equation for an expanding ideal gas
- MatinSAR
- · Replies 10 ·
Why does velocity addition differ for train and ground observers?
- rgtr
- · Replies 17 ·
Slingshot projectile experiment gives half expected range
- nomadreid
- · Replies 35 ·
Determining if a pipe is open or closed from given the resonant frequencies
- AAAA
- · Replies 9 ·
When is power constant in this scenario?
- rakesh
- · Replies 25 ·
Question's Diagram: Am I Right?
- MatinSAR
- · Replies 3 ·
What is the electric field strength inside the capacitor?
- YamiBustamante
- · Replies 6 ·
What exactly is wrong here? (F=ma when Force and acceleration are zero)
- NTesla
- · Replies 17 ·
Why Is 686 m/s Incorrect in Physics Calculations?
- Bruh23
- · Replies 8 ·
Heating up of tyres on the road
- vcsharp2003
- · Replies 30 ·
Proving SHM for charged spring mass system in electric field
- Nway
- · Replies 2 ·
Electric field at surface of lead-208 nucleus
- member 731016
- · Replies 2 ·
How Do You Convert Seconds to Nanoseconds in Scientific Notation?
- member 731016
- · Replies 11 ·
When is Torricelli’s Law an Approximation?
- member 731016
- · Replies 6 ·
Why Does Hooke's Law Seem Contradictory in Calculating Spring Energy?
- tallwallyb
- · Replies 2 ·
Finding value of unknown charge
- member 731016
- · Replies 2 ·
The Mass of a Black Hole versus its volume
- oldspice1212
- · Replies 6 ·
Given a Constant Acceleration magnitude of g/4, Find the value of t
- baumbad
- · Replies 6 ·
Using Kirchhoff's law, deduce the value and direction of the current
- haha0p1
- · Replies 6 ·
Circular Motion with Decreasing Radius
- uSee2
- · Replies 8 ·
Rotation and torque about an accelerating point
- chris25
- · Replies 6 ·
Conductor rolling down an inclined plane in a vertical B-field
- member 731016
- · Replies 32 ·
Why optical pyrometer gives a low reading?
- vcsharp2003
- · Replies 19 ·
Force between 2 point charges in VECTOR format (x i + y j + z k)
- nataelp
- · Replies 17 ·
Coordinates of a point on a rotating wheel
- realanswers
- · Replies 3 ·
Perfectly elastic collision between two electrons in ⊥ B-field
- member 731016
- · Replies 6 ·
Calculating Shannon Entropy of DNA Sequences
- GravityX
- · Replies 5 ·
Magnetic Field Due to a Curved Wire Segment
- member 731016
- · Replies 4 ·
Pulley with friction, how to get the friction in the pulley?
- YehiaMedhat
- · Replies 23 ·
Finding the weight of an object submerged in water
- haha0p1
- · Replies 17 ·
Electric field due to n charges
- member 731016
- · Replies 6 ·
Magnetic Field Surrounding a Straight Conductor
- member 731016
- · Replies 2 ·
Solving for the Unknown in a Math Equation
- Panda1175
- · Replies 10 ·
Finding Value of ##N_A## and P in a Frame
- YehiaMedhat
- · Replies 8 ·
How Do Contact Lenses Correct Myopia and Alter Near Point Vision?
- Dzano
- · Replies 1 ·
Finding percentage and absolute uncertainties
- haha0p1
- · Replies 2 ·
Electric field due to two charges
- member 731016
- · Replies 16 ·
Pan suspended by a spring (Energy + SHM)
- uSee2
- · Replies 20 ·
Doubling the Thermal Energy of a Frozen Chocolate Bar
- lxhull
- · Replies 5 ·
Interpolate between 2 impact points only given the throw angles
- Werther
- · Replies 6 ·
Why do we need to take the absolute value of charge in an electron gun?
- member 731016
- · Replies 6 ·
Determine expressions for the following in terms of M, X, D, h and g
- paulimerci
- · Replies 30 ·
Struggling to rearrange a formula to find c
- leejohnson222
- · Replies 22 ·
Specific Heat Capacity of a metal bar placed into water
- lxhull
- · Replies 4 ·
Work calculation for lifting a Tetrahedron-shaped object from the water
- NODARman
- · Replies 37 ·
Doing experiment to find the authenticity of Archimedes' law
- haha0p1
- · Replies 13 ·
Relative velocity of kids on a merry-go-round
- Shreya
- · Replies 25 ·
Using unequal masses on a pulley to measure gravity
- uSee2
- · Replies 30 ·
Find elastic energy in the compressed spring.
- paulimerci
- · Replies 12 ·
A cart collides with a bumper -- Find the final displacements, etc.
- paulimerci
- · Replies 15 ·
Magnetic and Electric Fields problem
- davidj
- · Replies 4 ·
Why does heat transfer away if the final temperature is above room temperature?
- DarkEnergy890
- · Replies 11 ·
Find the electric field of a long line charge at a radial distance
- noowutah
- · Replies 1 ·
Is Moment of Inertia Dependent on Surface Movement Away from Axis?
- Guillem_dlc
- · Replies 9 ·