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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In order for two objects to have the same temperature
- tanzerino
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Resistance of a composite conducting wire
- Linus Pauling
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Diameter of wire from voltage, length, resistivity
- Linus Pauling
- · Replies 1 ·
Calculating Critical Angles for Sliding Blocks on Ramps
- cellfoneguy
- · Replies 8 ·
How Is Energy Loss Calculated in Connected Capacitors?
- thereddevils
- · Replies 5 ·
Effect of Dielectric on Charge and Potential in a Parallel Plate Capacitor
- thereddevils
- · Replies 6 ·
Charging and discharging of capacitors
- thereddevils
- · Replies 7 ·
What Does the Area Under an Acceleration-Time Graph Indicate?
- roam
- · Replies 3 ·
Speed problem including the speed of sound
- steve snash
- · Replies 2 ·
Find the acceleration of the object
- TyErd
- · Replies 13 ·
Motion at constant acceleration
- steve snash
- · Replies 2 ·
What is the Formula for Gravitational Force?
- Sirsh
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Would the charges in each capacitors be the same ?
- thereddevils
- · Replies 5 ·
How to find electric potential at a point?
- pdrjuarez
- · Replies 1 ·
Understanding the Internal Resistance of Ammeters and Voltmeters
- lha08
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What is the Net Traction Force on a Pulley in a Traction System?
- tiffany09
- · Replies 5 ·
How Is the Magnitude of an Electric Field Calculated?
- Linus Pauling
- · Replies 1 ·
Calculating Magnetic Dipole Moment & Torque of Coil in Magnetic Field
- lindsebn
- · Replies 1 ·
How to find value of inductance in LR series circuit?
- mathman44
- · Replies 5 ·
Solving the Mystery of 7 Three-Way Switches & 7 Lights
- jdogohoover
- · Replies 1 ·
Solve Kinematics Problem: Horizontal Displacement
- GreenPrint
- · Replies 1 ·
Circuits: phase angles and its effects on maxium current
- padf
- · Replies 1 ·
Comparing Momentum and Velocity
- Minho
- · Replies 4 ·
How many 420nm photons are emitted per second by an LED with a power of 10 mW?
- XTEND
- · Replies 5 ·
Charging two capacitors then putting them in parallel
- Linus Pauling
- · Replies 1 ·
Supernova energy reached by detector disk 1560 light years away
- skibum143
- · Replies 2 ·
Calculating Electric Field for an FM Antenna in an EM Wave
- skibum143
- · Replies 2 ·
Time required for falling objects speed to double
- bigbobby
- · Replies 3 ·
Magnetic field at center of current loop using Ampere's law
- Linus Pauling
- · Replies 9 ·
Laser Beam and index of refraction
- skibum143
- · Replies 2 ·
What is the maximum tension in the rope?
- cyspope
- · Replies 1 ·
Solving a Resistance-Inductance Circuit Problem
- c-murda
- · Replies 1 ·
How does the movement of A affect the movement of B?
- tuloon
- · Replies 2 ·
Calculating Resistance and Input Voltage in an RL Circuit with AC Generator
- nns91
- · Replies 1 ·
Dip Needle Compass vs. Normal Compass
- qomoco
- · Replies 3 ·
Assessing Dam Strength with a Simple Model
- Physics122
- · Replies 18 ·
Gravity Question: Calculating Orbit Time Around Spherical Rock
- Poisonous
- · Replies 22 ·
Solving Paratrooper's Fall: Estimating W, F, & Air Resistance
- cyspope
- · Replies 5 ·
Solving Physics Problem: Calculate Frictional Force of 24 N
- Misr
- · Replies 5 ·
Calculating Gravitational Force between Neptune and the Sun
- Axson
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Experiment: Ruler Bending at Different Points
- inutard
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How Does Bending Distance Affect the Force Exerted by a Ruler?
- serco
- · Replies 9 ·
What is the Method for Measuring Moment of Inertia in a Yo-Yo Prototype?
- F.Workman
- · Replies 3 ·
Kinetic Energy and Electric Potential
- ihearyourecho
- · Replies 5 ·
Equipotential Surfaces and Electric Field
- ihearyourecho
- · Replies 2 ·
Question About AP Physics B Scoring
- GreenPrint
- · Replies 3 ·
I'm over-complicating thermal equilibrium HELP PLEASE.
- Ant64
- · Replies 3 ·
How Much Energy is Carried by One Trillion Photons of 20 cm Microwaves?
- 05holtel
- · Replies 3 ·
Potential difference required to stop a particle
- Revvi
- · Replies 1 ·
Solve Kepler's 3rd Law for Satellite Weight
- ny_aish
- · Replies 5 ·
Calculating Terminal Voltage: Battery with 3.0V EMF and 0.70 Ohm Resistance
- sp1974
- · Replies 8 ·
How Much Voltage Does a Bird Feel on a Power Line?
- sp1974
- · Replies 12 ·
Net gravitational force of zero?
- tquiva
- · Replies 4 ·
Estimating electric field strength
- Linus Pauling
- · Replies 1 ·
Cyclist's Speed for 0.25 hp Output on 6° Hill
- cyspope
- · Replies 3 ·
Quantum and solid state physics
- zacl79
- · Replies 6 ·
Max 'd' for Blocks A & B: 0.5 Friction Coefficient
- antiparticle
- · Replies 5 ·
Air pressure needed for ballast
- doodles
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Force of Pulled/Pushed Rod: What's the Difference?
- FelixISF
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Dot product and cross product of vectors
- warfreak131
- · Replies 5 ·
What Determines the Frequency of Circular Motion in a Magnetic Field?
- 05holtel
- · Replies 6 ·
What Happens When a Monkey Pulls on a Rope with a Weight on the Other Side?
- borku1
- · Replies 4 ·
Quick Couple Concept Questions on Guass's Law
- godtripp
- · Replies 2 ·
Spring pushing block down and up hill problem
- bc2man
- · Replies 9 ·
My weight increases, but does the scale say zero?
- javas1
- · Replies 5 ·
What is the velocity needed for a trampoline jump?
- haengbon
- · Replies 1 ·
HELP Collision question with two unknowns
- JazzleFazz
- · Replies 1 ·
The creation of the moon (a kind of conceptual problem
- Physics122
- · Replies 6 ·
What is the distance of the third charge?
- haengbon
- · Replies 5 ·
Moment of inertia of rug beater
- man_in_motion
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Acceleration in an elevator and Physical Laws
- Tomdoml
- · Replies 5 ·
Solving Rolling & Slipping Homework Problem
- 1st2fall
- · Replies 2 ·
Acceleration on an Inclined Plane?
- haengbon
- · Replies 2 ·
Electric Potential: Voltage at Points a,b,c,d?
- spherific
- · Replies 4 ·
Transformer questions - primary, secondary, gaaaah
- sutekilady
- · Replies 2 ·
1-D Perfectly Elastic Collison PLEASE CHECK THANKS
- proxy98
- · Replies 3 ·
Finding tension in rope sagging under tightrope walker's weight
- matthayzon89
- · Replies 1 ·
Finding reactions at points on truss
- Ryuk1990
- · Replies 17 ·
Identifying Independent and Dependent Variables in Circular Motion Experiment
- Stroodle
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Mass spec voltage and magnetic field
- sweetdion
- · Replies 9 ·
Determining Forces on a Current Loop in a Magnetic Field
- sweetdion
- · Replies 9 ·
What Is the Potential Value at Points a to d?
- REDSOX
- · Replies 3 ·
Finding Angular Velocity of a Yo-Yo with a Pulled String
- Physics122
- · Replies 1 ·
Quantum Phenomena question: Estimating Lifetime of Unstable Particle
- superkam
- · Replies 7 ·
Question concerning Kirchoff's Laws
- Linus Pauling
- · Replies 5 ·
Triboelectric Series: List & Materials Ranked by Affinity
- HKUST
- · Replies 1 ·
How Do You Calculate the Velocity and Distance of a Ball Thrown Vertically?
- slpnsldr
- · Replies 25 ·
Wind Turbine: 8MWatts Increase at 650ft?
- Windseaker
- · Replies 4 ·
Does Magnetic Force on a Wire Loop Affect Flux Change in a Solenoid?
- EV33
- · Replies 1 ·
Does Heating a Gas Under Constant Pressure or Volume Affect Its Internal Energy?
- Alvine
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Help! I'm Behind on a Physics Homework Assignment!
- whizbang21
- · Replies 6 ·
Max Compression Distance x: Solving the Compression Distance Problem
- asimon2008
- · Replies 2 ·
Calculating Phase Angle in an AC Circuit: Practical vs. Theoretical Approaches
- mmmboh
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Is a light wave composed of waves, photons or both?
- jasper10
- · Replies 3 ·
Power & Stair Climbing: Reviewing Old Homework
- Rentheil
- · Replies 2 ·
Not really HW Just want to fully understand induced emf
- sarahjt1
- · Replies 2 ·
A mass of 1x10^-16 kg is traveling, what is its kinetic energy ?
- xterminal01
- · Replies 5 ·
Charging a capacitor, time constant stuff
- Linus Pauling
- · Replies 13 ·
Doppler shift with microwaves i think
- Dorbo
- · Replies 5 ·