Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Apparent Weight and Newtons Second law Problems
- thisismyacc
- · Replies 4 ·
How Accurate is the 1/2gt² Formula for Calculating Drop Height?
- Greiver
- · Replies 2 ·
Disk with constant angular acceleration
- Bad Vibration
- · Replies 4 ·
Kirchoff's Law Question; I'm very close
- eriadoc
- · Replies 1 ·
Masses and inclined plane with friction
- nynja
- · Replies 2 ·
Tension in a Simple Pendulum: Calculating Tension at Rest and at an Angle
- gmmstr827
- · Replies 1 ·
How Does Capacitance Affect Current Amplitude in a Shunted RLC Circuit?
- zorro
- · Replies 14 ·
Vector sum of two 14.8 m vectors at 32° and 108°
- pizzie
- · Replies 2 ·
Find total current, battery voltage and power loss in parallel circuit
- Phemzy
- · Replies 3 ·
What is the Velocity-Time Graph for a Ball Thrown Straight Up?
- chawki
- · Replies 36 ·
Monkey Climbing Rope: Solving for the Least Time to Reach a Banana at 6.90m
- alfredo24pr
- · Replies 1 ·
Finding the Angle of a Projectile Launched from a Cliff
- alfredo24pr
- · Replies 12 ·
Why is the Sign of Work and Energy Important?
- jegues
- · Replies 1 ·
Finding speed of light through medium, when given critical angle of refraction
- seanmcgowan
- · Replies 3 ·
Car on banked turn, with reversed banking angle
- pech0706
- · Replies 6 ·
Why Does Apparent Weight Change on a Ferris Wheel?
- mvpshaq32
- · Replies 7 ·
Entropy Change in a Two-Step Heating Process for Water in a Heat Bath
- quietrain
- · Replies 6 ·
Calculating Charge in a 9V, 12W Radio
- aaronmilk3
- · Replies 2 ·
EMI Quickies: Get Answers to Your Questions
- cupid.callin
- · Replies 5 ·
Calculating Distance of Earthquake Epicenter Using P and S Waves
- trajan22
- · Replies 4 ·
Water Bottle Experiment (not that of Newton's)
- abejackson
- · Replies 6 ·
What Velocity Does the Boy Gain After Throwing the Jug?
- GodAllen
- · Replies 3 ·
How to calculate average force?
- kings13
- · Replies 1 ·
What is the most likely value of the current, with its uncertainty?
- aurao2003
- · Replies 4 ·
Book inserted between parallel-plate capacitor
- Pictures
- · Replies 1 ·
Finding Total Capacitance with Electrical Breakdown
- catie1981
- · Replies 6 ·
Understanding Time Dilation and Age Differences in Twin Paradox Experiments
- Raziel2701
- · Replies 4 ·
Couple simple electric force questions
- JimiJams
- · Replies 7 ·
What does sin2(θ) mean in the projectile range formula?
- ThomasMagnus
- · Replies 7 ·
Four Charged Particles in a Square
- doogles8654
- · Replies 3 ·
Magnetic Field loops of wire Question
- member 217843
- · Replies 1 ·
Orbital shapes, Newton's gravitation, and Kepler's laws
- LukeyD
- · Replies 1 ·
Creating a simple budget step by step
- gautamgoyal
- · Replies 1 ·
Projectile Motion. Find where it lands.
- TcWhistler
- · Replies 7 ·
Finding Max Compression of Spring with 500g Block
- AnnieF
- · Replies 3 ·
Two questions regarding conductors and their properties.
- flyingpig
- · Replies 5 ·
How Do You Calculate Charge from Electric Potential Energy in a Dipole?
- roman15
- · Replies 14 ·
How Is Force Calculated When Pushing a Block at Constant Velocity?
- macmac410
- · Replies 4 ·
Calculating Minimum Magnetic Field for Sliding Copper Rod on Two Rails
- tomrja
- · Replies 4 ·
Solving Spherical Conductor: Net Charge and Electric Field
- tica86
- · Replies 3 ·
Calculate Speed of a Charged Particle in a Square
- stuti911
- · Replies 6 ·
What Is the Potential Difference Across Three Series Resistors?
- name_ask17
- · Replies 11 ·
Parallel and normal components of electric field near a metal plate
- bon
- · Replies 2 ·
Thermodynamics - Thermal Energy of a gas
- WolfeSieben
- · Replies 4 ·
Net Charge of a Region with Increasing Electric Field?
- affordable
- · Replies 2 ·
Speed of sound at –10 °C given proportionality to temperature
- chawki
- · Replies 2 ·
Does the slope increase if it goes from more to less negative?
- Ryker
- · Replies 2 ·
Find max compression of spring, block on incline
- DrWillVKN
- · Replies 4 ·
Relative separation speed in pepper spray momentum problem
- Stahs
- · Replies 11 ·
Angle of Line x+sqrt(3y)=12 with X-axis
- KrazyFire
- · Replies 13 ·
Impact force of 15 lb object at 67 mph and equivalent drop height
- Moose720
- · Replies 14 ·
Mass Per Unit Length: Easily Calculate
- Mattmiles
- · Replies 1 ·
How Does Gauss' Law Apply to Coaxial Cable Charge Distribution?
- KarlsBarkley
- · Replies 1 ·
Potential Difference of 1200 V Gives Electron 1200 eV Kinetic Energy
- tica86
- · Replies 1 ·
Vertical Motion Problems: Can You Solve These?
- nerdgirl14
- · Replies 2 ·
What is the Explanation for the Zero Value in the Steiner Theorem Demonstration?
- Telemachus
- · Replies 4 ·
Solenoid in open circuit and with glavanometer attached
- tecktonik
- · Replies 1 ·
Piston problem including force and work
- jessiemay1993
- · Replies 8 ·
How Is Average Speed Calculated for a Round Trip with Different Speeds?
- realslow
- · Replies 3 ·
Finding the force applied on a foot
- chris_0101
- · Replies 3 ·
Projectile Motion - Find intial velocity when given an angle?
- white_is
- · Replies 6 ·
How Does Time Dilation Affect Space Travel Between Earth and Vega?
- jewels04
- · Replies 1 ·
What is the Flux through the surface?
- uchicago2012
- · Replies 1 ·
Vector problem with traveling car
- ThomasMagnus
- · Replies 3 ·
Estimating observable universe volume from its age
- brandon26
- · Replies 9 ·
How Does the Doppler Effect Calculate Submarine Depth and Velocity?
- krtica
- · Replies 2 ·
Astronomy, Luminosity of 100 solar mass stars
- jmm5872
- · Replies 3 ·
Tension in a rope due to hanging mass
- jegues
- · Replies 7 ·
What are they doing? Charges and Conductors
- flyingpig
- · Replies 25 ·
Signs and directions of field lines in Gauss's law problem
- MitsuShai
- · Replies 7 ·
Hohmann transfer orbit from Earth to Mars
- olyviab
- · Replies 4 ·
Physics - Thermodynamics - Pressure caused by Nitrogen atoms hitting a surface
- WolfeSieben
- · Replies 10 ·
Electric field and total charge
- uchicago2012
- · Replies 5 ·
How Does Charge Distribution Affect Electric Field and Work Done?
- uchicago2012
- · Replies 3 ·
Charge on the Surface of a Spherical Shell with a point charge inside with
- jaguar7
- · Replies 2 ·
Finding direction of electric field difference from two points around a charge
- awertag
- · Replies 10 ·
Contour integral of cosh z/(z²-z) around three circles
- blueyellow
- · Replies 1 ·
Electric flux through a hemisphere with uniform field
- uchicago2012
- · Replies 1 ·
Calculating Average Power of 130V RMS Generator Circuit
- Xels
- · Replies 2 ·
Heat flow through oven glass door in 1 hour
- hoyy1kolko
- · Replies 3 ·
How Do You Calculate Current Density in a Wire?
- 123yt
- · Replies 3 ·
Electric field question(half worked already)
- vande060
- · Replies 7 ·
Finding units for charge and electric potential expressions
- TypeFun
- · Replies 19 ·
Dynamics HW problem giving me a real headache
- customwelds
- · Replies 2 ·
Problem with angular acceleration and Moment of Inertia
- Aviation
- · Replies 2 ·
Where on the x-axis will a third charge have no net force
- bbraves7
- · Replies 3 ·
Acceleration as a function of position, and time taken to travel a distance
- jmz34
- · Replies 3 ·
Finding current at instant when capacitors have lost 80% of initial energy?
- smashyash
- · Replies 9 ·
Accelerating to pass a truck in 3.0 seconds
- mistabry
- · Replies 3 ·
Two electrons, one moving towards the other.
- pdeco1
- · Replies 1 ·
Chain hanging off table: integration help for variable mass problem
- Liquidxlax
- · Replies 2 ·
Choosing the Right Answers for Falling Wheel, Crate Forces, and Ammeter Readings
- chawki
- · Replies 2 ·
Why am I getting negative work when it should be positive?
- dimpledur
- · Replies 1 ·
Physics-Electric Fields: Can someone please explain this to me?
- MitsuShai
- · Replies 8 ·
Electric Potential: Two Spherical Shells
- Bryon
- · Replies 1 ·
Electric field at the surface of a Geiger counter wire
- Bryon
- · Replies 7 ·
Finding the Spring Constant: A Simple Calculation
- rola99
- · Replies 1 ·
Which Solar System Body is Hardest to Reach and What Does It Take to Get There?
- elorc
- · Replies 6 ·
Calculating Change in Electric Potential Energy with Multiple Charges
- watdawaq
- · Replies 1 ·
Finding the Electric Potential at a Point Due to Multiple Charges
- eestep
- · Replies 1 ·