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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Calculating Electric Field and Force in a Coaxial Cable
- dimpledur
- · Replies 1 ·
What Value of q Maximizes the Repulsive Force Between Two Charges?
- aaronmilk3
- · Replies 2 ·
What is the Angle θ for No Net Force on Electron 2?
- aaronmilk3
- · Replies 1 ·
Density of floating wood and a person in water
- jerick232002
- · Replies 7 ·
Does the center conductor count as an equipotential surface?
- dimpledur
- · Replies 2 ·
Finding the Voltage Rating of a Battery in Fig. 3
- letalea
- · Replies 1 ·
Difference between electronics and physics.
- alirizwan
- · Replies 4 ·
Brachistochrone with velocity - still a cycloid
- Grand
- · Replies 3 ·
Finding net electric field from three point charges
- vitaebellaa
- · Replies 1 ·
Gauss' Law Hollow Sphere with Charged Ball
- hy23
- · Replies 1 ·
Expansion of a Compressible Gas
- El Moriana
- · Replies 2 ·
How Wide Is the River Jean Camped Beside?
- Meliora
- · Replies 3 ·
Conservation of Energy with kinematics
- joej24
- · Replies 2 ·
How Far Does the 2 kg Mass Travel Before Reaching Maximum Speed?
- zxfhero
- · Replies 15 ·
Kinetic energy ratio for same speed on Earth and moon
- IntegrateMe
- · Replies 2 ·
Calculating earth gravity by using centripetal acceleration
- ankhmor
- · Replies 1 ·
Is the fundamental frequency of a given swing constant?
- binbagsss
- · Replies 1 ·
Car motion from acceleration-time histogram
- BraindeadX64
- · Replies 11 ·
Which situation will induce the greatest current flow?
- JustinLiang
- · Replies 1 ·
Calorimetry problem involving tea and ice
- mcnivvitz
- · Replies 4 ·
Converting MPH to Light years/century
- rkennedy9064
- · Replies 2 ·
Velocity of charged particle in a uniform electric field
- pcml100
- · Replies 12 ·
The total system momentum vector before the collision is approximately
- Acestein
- · Replies 2 ·
Maximum x component force on a particle given orientation
- jegues
- · Replies 4 ·
Force between point charges and third charge to double force
- aurao2003
- · Replies 2 ·
Air Resistance and Projectile Motion
- AlexChandler
- · Replies 6 ·
Finding Maximum Tension in a String
- Andriko
- · Replies 2 ·
Using voltmeters to measure voltage
- JustinLiang
- · Replies 3 ·
Voltage and energy when closing a switch between two capacitors and a resistor
- Clever-Name
- · Replies 5 ·
How Do You Calculate the Potential Energy in a Stretched Two-Spring System?
- jcfor3ver
- · Replies 1 ·
Elevator Problem: Find Tension in Cable
- eagleeyecherr
- · Replies 1 ·
Velocity Vs Time Conceptual Question
- neon612
- · Replies 4 ·
How do you linearize this equation (terminal velocity in fluid)?
- Ryker
- · Replies 7 ·
Can someone draw this diagram for me because I must be getting the wrong picture
- smashbrohamme
- · Replies 3 ·
Finding the Direction of Resultant Vector: A Vector Addition Problem
- sycho2
- · Replies 2 ·
Crumple zone dimensional analysis and acceleration limit
- jcfor3ver
- · Replies 1 ·
Magnitude and coordinate direction angles of the resultant force.
- bbarke00
- · Replies 1 ·
Power dissipated by form drag on a vehicle
- jcfor3ver
- · Replies 3 ·
Ferris Wheel w/ constant angular velocity, girl throws ball and catches it.
- btbam91
- · Replies 1 ·
Relative Motion: Solving Kinematic Problems with Multiple Moving Objects
- btbam91
- · Replies 4 ·
What Is the Final Angular Velocity of a Rod After Being Struck by a Bullet?
- Abhishekdas
- · Replies 6 ·
Why does using larger particles make average impulses tend to zero?
- binbagsss
- · Replies 1 ·
Electrostatic force between two objects
- chaslltt
- · Replies 2 ·
Not sure if this a math or physics problem.
- flyingpig
- · Replies 9 ·
Finding amplitude and wavelength from a standing wave equation
- cosmogirl90
- · Replies 3 ·
Earthquake distance to seismograph
- Hypnos_16
- · Replies 16 ·
Electric field at a point from three equal positive charges
- flyingpig
- · Replies 46 ·
Instantaneous Velocity graph problem
- iiskenny
- · Replies 3 ·
Rocket Car Acceleration Analysis
- songoku
- · Replies 16 ·
Surface Energy Calculation: 8-24(πr^2S)
- vissh
- · Replies 2 ·
How Fast Must a Spaceship Travel to Cross the Galaxy in 35 Years?
- feuxfollets
- · Replies 1 ·
What is the height of water in an inclined capillary tube?
- vissh
- · Replies 1 ·
Spacecraft path to a pulsar with constant acceleration
- Astro.padma
- · Replies 18 ·
What Is the Speed of a Wave If a Jetskier Moves at 8.30 m/s?
- Hypnos_16
- · Replies 5 ·
C12B 2011 Problem 23Finding Zero Net Magnetic Field Points in Crossed Wires
- HoneyDeeLite
- · Replies 1 ·
Electric field inside a solid charged metal rod
- flyingpig
- · Replies 12 ·
Are these two equations dimensionally correct in the MKS system?
- hthrcru
- · Replies 2 ·
How does the depth of an object in water affect its horizontal force?
- jimmy42
- · Replies 3 ·
Physics problem involving tension and electric fields
- aaronmilk3
- · Replies 2 ·
Finding charge on a sphere from orbiting proton
- aaronmilk3
- · Replies 4 ·
How to calculate the location of drops in a falling water shower?
- way2fasts
- · Replies 1 ·
Using F = v*dm/dt + m*dv/dt with variable mass in barges and coal
- kanjames
- · Replies 8 ·
What Is the Final State of Water and Ice After Mixing?
- psychkub
- · Replies 4 ·
Electric field from three point charges at different distances
- fisixC
- · Replies 1 ·
Magnitude of Electric Field in Insulating Cylinder
- nolachrymose
- · Replies 3 ·
Centripetal Force + Frictional Force + Braking
- Theorγ
- · Replies 5 ·
Calculating Electric Field at a Given Position Due to a π- Particle
- Squall
- · Replies 3 ·
Finding an Unknown Charge using Coulomb's Law
- whatisphysics
- · Replies 1 ·
Weight, net force, and acceleration
- Tastosis
- · Replies 1 ·
Having Trouble With Dipole Torque and Work
- ccelt09
- · Replies 3 ·
How Do You Solve an Oscillation Problem Involving a Vertical Spring and Block?
- kittykatxox
- · Replies 1 ·
Task of building a water barometer.
- killersanta
- · Replies 1 ·
How Is Acceleration Calculated for a Bullet in a Rifle Barrel?
- iiskenny
- · Replies 1 ·
Ceiling Fan Blade Acceleration and Angle Calculation
- eiriyuki
- · Replies 9 ·
Ceiling Fan Angular Acceleration
- mohabitar
- · Replies 2 ·
Light intensity through 2 slits
- Nihalum
- · Replies 1 ·
Entropy change as mass tends to infinity
- blueyellow
- · Replies 1 ·
Yes, that gives the correct answer.
- Crazynutjob
- · Replies 7 ·
Simplifying a complex algebraic expression with multiple variables
- xilc
- · Replies 1 ·
Calculating change in volume (bulk modulus)
- togo
- · Replies 1 ·
Need some hints for a Coulomb's Law question
- whatisphysics
- · Replies 6 ·
Capacitors - energy stored vs work done
- RK1992
- · Replies 4 ·
Application of the Dot Product (Arfken and Weber)
- rwc0613
- · Replies 5 ·
How Does Projectile Motion Work When Launched from a Moving Object?
- idlackage
- · Replies 3 ·
Calculating pressure given dia. and pounds
- togo
- · Replies 2 ·
Bullet penetrating wood block: finding stopping time and retarding force
- Tastosis
- · Replies 10 ·
Why does an infrared photograph of a person look different from visible light?
- tgpnlyt7095
- · Replies 1 ·
Finding string tension with weight 2800N
- Pear_Head
- · Replies 1 ·
Final velocity given acceleration and initial velocity
- Ohoneo
- · Replies 5 ·
Finding moment of force with vectors and angles
- Inertigratus
- · Replies 1 ·
Pressure to Force to Mass with English units
- PassatDream
- · Replies 2 ·
How Do You Calculate Unknown Charges in an Electric Field Problem?
- bobred
- · Replies 3 ·
Drawing a PV diagram with isothermal, isobaric and adiabatic processes
- Abidal
- · Replies 2 ·
Typical when do they collide problem
- Ohoneo
- · Replies 2 ·
Breaking the Law of Conservation of Energy
- Skizor1337
- · Replies 7 ·
Projectile Motion: How to Calculate Initial Velocity for a Golf Shot
- smashbrohamme
- · Replies 1 ·
What are the units for effective mass in the formula m* = (h/2pi)2(d2E/dk2)-1?
- magnifik
- · Replies 1 ·
How exactly do we know the direction of the E-field here?
- flyingpig
- · Replies 7 ·
Is Thermal Energy Equal to Work Done by Battery in Electric Circuits?
- cupid.callin
- · Replies 4 ·
Gaussian surface for a cylindrical shell at different radii
- flyingpig
- · Replies 7 ·