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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What does q(0−) = 0 mean in charge calculations?
- s3a
- · Replies 8 ·
Relative Motion Problem been trying to figure out for hours
- berkdude022
- · Replies 13 ·
Two rods are connected one silver and the other gold.
- smashman101
- · Replies 3 ·
How Is Terminal Velocity Calculated in a Submerged Block System?
- trevo100
- · Replies 2 ·
How Does Density Affect the Lifting Power of Helium Balloons?
- Drizzy
- · Replies 4 ·
Why are the normal forces for the legs pointing downwards?
- Kenshinz
- · Replies 7 ·
How Is the Force on a Helium Ion Calculated in a Magnetic Field?
- Mnemonic
- · Replies 3 ·
Quantum Theory of Earth Satellite Analogy to Bohr Model
- Rapier
- · Replies 5 ·
Electron-positron creation from colliding photons
- chem_heather
- · Replies 4 ·
What is the Relationship Between Force Magnitude and Length in a Scale?
- goldfish9776
- · Replies 3 ·
Linear velocity equation for a object trown vertically up
- bjornove
- · Replies 1 ·
Why does pushing a desk from a rolling chair move the chair instead of the desk?
- Entr0py
- · Replies 20 ·
Calculating velocity and position from time variating force
- jeremyskate
- · Replies 4 ·
How Does a Michelson Interferometer Measure Distances?
- rtsswmdktbmhw
- · Replies 6 ·
Average Acceleration and Speed
- OverlordXero
- · Replies 1 ·
Electric Field due to Charged Washer
- yango_17
- · Replies 7 ·
Calculating magnitude of electric field at center of square
- Physics2341313
- · Replies 4 ·
Speed of bowling ball involving speed of sound
- Entr0py
- · Replies 7 ·
What equation do i use to find the acceleration?
- rgold
- · Replies 3 ·
Thermodynamics relating to temperature and phase changes V.2
- Mnemonic
- · Replies 1 ·
Potential of a spherical shell (non-uniform charge density)
- SquidgyGuff
- · Replies 3 ·
Using couette flow/viscosity to find force
- reed2100
- · Replies 1 ·
Why is the nominal capacity of power plants given in terms of power, not energy?
- jamesfirst
- · Replies 2 ·
Finding the distance between two charges
- watabi
- · Replies 6 ·
How many electrons does the atom have?
- pandamonium786
- · Replies 13 ·
What would the final charge on the rod be?
- pandamonium786
- · Replies 5 ·
Choosing Integrating constants for Electric Field
- Jen2114
- · Replies 9 ·
Calculate speed and acceleration
- lamefeed
- · Replies 3 ·
What happens when we connect 2 batteries + with +, - with -?
- CasterlyRock
- · Replies 10 ·
What Is the Electric Dipole Moment of the Given System?
- gracy
- · Replies 6 ·
Velocity vs acceleration direction for a thrown bowling pin
- Anama Skout
- · Replies 4 ·
How Does a Cricket Bat Affect the Force on a Ball?
- Littlej4me
- · Replies 6 ·
Finding the neutral point of two charges
- kspabo
- · Replies 4 ·
How high is a spaceship after accelerating to 340 km/h in 1.1 minutes?
- Manh
- · Replies 12 ·
Finding the magnitude of a vector B given vector C
- Cadawallader
- · Replies 5 ·
Thermodynamics relating to temperature and phase changes
- Mnemonic
- · Replies 1 ·
How Can I Find the Initial Velocity of a Ball Based on Angle and Window Height?
- Kernul
- · Replies 3 ·
Change in pressure of a gas inside a tube
- lorele
- · Replies 6 ·
Permutations of the word dinner with repeated letters
- #neutrino
- · Replies 1 ·
Determine the output voltage ripple
- ToonBlue
- · Replies 2 ·
Finding specific heat of metal from calorimetry data
- appdulrahman
- · Replies 1 ·
Currents through a circuit (junctions/series/parallel)
- RelativeJosef
- · Replies 3 ·
How Does Electric Flux Calculation Apply to Complex Fields and Geometries?
- psysicsfeet
- · Replies 5 ·
What Is the Skater's Acceleration on the Rough Ice?
- Ashkon
- · Replies 6 ·
Magnitude of the Initial Velocity
- Rose1996
- · Replies 2 ·
Engineering Dynamics: Solving Train Decel on Slope
- JaredPM
- · Replies 5 ·
What Defines a Closed System Free from External Forces?
- Drizzy
- · Replies 5 ·
Finding a vector perpendicular to a plane defined by two vectors
- Blockade
- · Replies 18 ·
Three vectors lie in an xy plane
- 0btuse
- · Replies 5 ·
Diffusion vs Osmosis: What’s the Difference?
- Drizzy
- · Replies 1 ·
How Do You Solve a Kinematics Tennis Ball Problem Using d-v-a-t Formulas?
- dragonx47
- · Replies 1 ·
How Long Does It Take for a Cop to Catch a Speeder?
- Rectifier
- · Replies 3 ·
Seesaw balance problem with different mass units
- Robm50
- · Replies 10 ·
Direction and Average Acceleration
- Manh
- · Replies 9 ·
Electron accelerated from 100 V to 200 V potential
- teetar
- · Replies 3 ·
Electric field at center of semicircular charge loop
- robren
- · Replies 4 ·
What Does the Variable T Represent in Cable Tension Problems?
- whitejac
- · Replies 13 ·
Weight of object in outer space away from galaxies
- Entr0py
- · Replies 25 ·
Calculating Time and Acceleration in Constantly Accelerating Cars
- Manh
- · Replies 30 ·
Electric field strength from x=-a to x = a
- physiccool78
- · Replies 3 ·
What Are the Tensions in Each Cable of a Suspension Bridge?
- hendrix7
- · Replies 31 ·
A boat travels down stream, then travels up stream
- Kingyou123
- · Replies 4 ·
'Monk and the Monastery' problem
- Kingyou123
- · Replies 18 ·
Coulombs's law problem, asked to find an unknown charge.
- J-dizzal
- · Replies 8 ·
Two fixed charges, find (x,y) coords of third particle.
- kspabo
- · Replies 5 ·
Find the final velocity of the block
- MARK STRETERS
- · Replies 5 ·
How Do You Calculate Angular Velocity at Half the Radius?
- pawlist
- · Replies 19 ·
Charles' Law Math Problem: Volume Change at Constant Pressure
- SnakeDoc
- · Replies 1 ·
Calc Speed of Parabolic Arc for Zero-Gravity: NASA's Vomit Comet
- Jimmy87
- · Replies 1 ·
Finding the electric field at point P between two charges
- LuckyShamrock
- · Replies 3 ·
Finding mass and final velocity in elastic collision between two balls
- erikewell
- · Replies 2 ·
Frictional force acting between 2 stacked blocks
- Rococo
- · Replies 2 ·
Electric Field Inside a Charged Insulating Sphere
- yango_17
- · Replies 3 ·
Hydrostatic pressure - barrel vs. small cylinder of water
- Rectifier
- · Replies 19 ·
Derivative of L-sqrt(L^2-x^2)How do I take the derivative of L-sqrt(L^2-x^2)?
- amanda.ka
- · Replies 13 ·
Entropy change for reversible and cyclic process
- spaghetti3451
- · Replies 3 ·
How to solve for distance give average velocity of magnitude
- bthebiologist
- · Replies 11 ·
What Does Find the Charge on the Outer Surface of Sphere 2 Mean?
- Antonius
- · Replies 1 ·
Electric field at a point from an insulating shell
- rezal
- · Replies 2 ·
Calculating Net Charge Inside a Cube in an Electric Field
- Antonius
- · Replies 21 ·
Finding the smallest resistance on a I-V graph
- Janiceleong26
- · Replies 8 ·
How to Calculate Acceleration for a Car Speeding from 10m/s to 15m/s in 80m"
- Oceanspire
- · Replies 4 ·
What Is the Velocity After Two Cars Collide?
- Entr0py
- · Replies 31 ·
What is the Gauge Pressure Inside a Hot Gas-Filled Incandescent Light Bulb?
- MidgetDwarf
- · Replies 1 ·
Finding velocity from a momentum-time graph at a point between plotted points
- Lana Elcic
- · Replies 2 ·
Finding angle Φ that maximizes range on an incline
- prelon
- · Replies 20 ·
How Long Does a Pitch Take to Reach Home Plate?
- evelinm
- · Replies 2 ·
Why Is the Angle 5.6° in Young's Double Slit Experiment?
- libbytam
- · Replies 1 ·
How Long Until the Arrow Hits the Rock in Helm's Deep?
- LeHotDoge
- · Replies 4 ·
Dimensional Analysis: Solving E = (1/2) mv Equation
- Michele Nunes
- · Replies 5 ·
What is the displacement and velocity of a falling object after 1.0 s?
- Lana Elcic
- · Replies 6 ·
Finding the Equilibrium Position for Three Charges
- Fireupchip
- · Replies 4 ·
Net force on rectangular circuit
- Alameen Damer
- · Replies 7 ·
Y component of electric field due to line of charge
- Mddrill
- · Replies 3 ·
Force exerted on Earth by accelerating ball
- Entr0py
- · Replies 4 ·
Finding net electric field from three point charges
- idkwhatimdoing
- · Replies 2 ·
Work done by gas when pressure rises with square root of volume
- JJ363636
- · Replies 14 ·
Finding charge magnitude for two hanging balls at 37 degrees
- pawlist
- · Replies 5 ·
When is the force of gravity 0?
- Alameen Damer
- · Replies 7 ·
Which way does a candle flame point on a rotating plate?
- korec123
- · Replies 6 ·