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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Rotational motion and law of gravity
- wowdusk
- · Replies 4 ·
Why Do Longer Wavelengths Diffract More Than Shorter Wavelengths?
- Yuqing
- · Replies 1 ·
Calculating Final Velocities of Elastic Collision in 2D
- Auras
- · Replies 3 ·
How Do You Calculate the Translational Velocity of a Ball on an Incline?
- blink1987
- · Replies 1 ·
Calculating Punch Force to Break Concrete Slab
- cybernerd
- · Replies 1 ·
Projectile Launch - Using Earth's Radius
- bustin
- · Replies 3 ·
Ring rolling 1.0 m at 3.0 m/s - how many revolutions?
- blink1987
- · Replies 1 ·
How Many Oscillators in a Carbon Nanoparticle with 5000 Atoms?
- yoyoz41
- · Replies 8 ·
Calculating Microstates and Oscillators in a Collection of Objects
- fball558
- · Replies 5 ·
Number of oscillators in carbon nanoparticle using Einstein model
- fball558
- · Replies 4 ·
Simple angular acceleration problem
- joseg707
- · Replies 1 ·
Finding the binding energy for lithium
- phys62
- · Replies 3 ·
Physics 40s conservation of momentum question
- Brodo17
- · Replies 1 ·
What Are the Characteristics of Oscillations for a Box on a Spring?
- mattmannmf
- · Replies 2 ·
Calculating Velocity of Meteor Rock Fragment Falling on Neptune
- Avis
- · Replies 4 ·
How Is Voltage Induced in a Rotating Coil Within a Magnetic Field?
- bpaterni
- · Replies 3 ·
Heat transfer through glass window with air layers
- diegzumillo
- · Replies 12 ·
Physics help- unsure where I went wrong
- cpat
- · Replies 3 ·
Find the speed of the block as it passed through O
- emma-sky
- · Replies 3 ·
How to solve for acceleration in a block on incline system with a pulley?
- vs55
- · Replies 21 ·
A Couple Exam Review Questions
- Mzachman
- · Replies 6 ·
Cuttoff frequwncy for an x-ray tube
- ladiebug511
- · Replies 2 ·
Calculating resistance from cross-section
- valarking
- · Replies 13 ·
Optics - Apparent Change in Position due to Media
- king vitamin
- · Replies 1 ·
How Do You Calculate the Orbital Speed and Period of a Satellite?
- wowdusk
- · Replies 3 ·
What is the elastic modulus of the wire?
- joseg707
- · Replies 4 ·
Finding potential at points on wires in a circuit with two emfs
- koab1mjr
- · Replies 3 ·
Photoelectric effect and mercury
- stickplot
- · Replies 5 ·
Total Time Travelled for 400m by Bus
- phynaive
- · Replies 6 ·
Finding which harmonic resonates at 1320 Hz in a violin string
- mathilin
- · Replies 6 ·
How Do You Calculate Net Forces in Coulomb's Law Problems?
- StephenDoty
- · Replies 2 ·
Calculating Impulse and Work on a Bullet
- Spaniard
- · Replies 7 ·
Circuit with an uncharged capacitor - desperate
- erinec
- · Replies 3 ·
Conservation of momentum between a moving ball and a stationary ball?
- chrisf44
- · Replies 1 ·
2 Impulse and Momentum related Questions
- zn23
- · Replies 5 ·
Force of nail after being struck by a hammer
- unteng10
- · Replies 3 ·
Sound Power Intensity: Double Distance Effects
- matt_li
- · Replies 1 ·
Equal Forces of Attraction and Repulsion for Like Charges in Coulomb's Law?
- Procrastinate
- · Replies 2 ·
Find the value of the emf in a battery
- rayhan619
- · Replies 6 ·
How Does the Weight of Stainless Steel Change in Sea Water?
- TorMcOst
- · Replies 8 ·
Projectile Motion on a sloped surface
- Doonami
- · Replies 3 ·
Hole Punched in the Side of Container
- science.girl
- · Replies 20 ·
Ball dropped 1.5 m bounces to what height on carpet
- NineTHOUSAND
- · Replies 2 ·
Angle Calculation for Equilateral Prism
- shimizua
- · Replies 3 ·
What is the Velocity of a 2-Wheeled Vehicle with Weight on Top?
- henry1117
- · Replies 12 ·
Beta Decay not a specific problem, just a question
- erinec
- · Replies 1 ·
Physics Word Problem; Projectile Motion
- georgiaa
- · Replies 3 ·
Greatest acceleration of the mass
- J89
- · Replies 1 ·
Water depth from sonar echo with 870 ms return time
- dlre
- · Replies 10 ·
How Long After a Crash Does Sound Reach Different Observers?
- dlre
- · Replies 3 ·
Power Developed for Conveyor Belt Transporting Newspapers
- Lothar
- · Replies 1 ·
Sound wave speed, frequency and period from echo and wavelength
- bnwchbammer
- · Replies 2 ·
Physics Lab - Measurement of Absolute Zero?
- minidee
- · Replies 4 ·
Physics Lab - Mechanical equivalent of heat
- minidee
- · Replies 1 ·
Can the Defendant Throw the Money Bag Under 5 m/s?
- georgiaa
- · Replies 1 ·
Calculating Forces and Friction in Motion: A Cake on a Bus
- ILC grade 11
- · Replies 5 ·
Find the current through and the potential difference of resistor
- rayhan619
- · Replies 8 ·
Calculating volume from adiabatic operation
- mister_tom
- · Replies 5 ·
What Is the Angle of Incline for a Sphere Rolling Without Slipping?
- hejo
- · Replies 3 ·
Creating a Shock-Absorbing Design for an Egg Drop
- Crazyhooligin
- · Replies 5 ·
Index of refraction for violet light
- itryphysics
- · Replies 2 ·
A fixed cannon is to fire a projectile at a tank
- esmmajor
- · Replies 1 ·
Linear momentum and its Conservation
- aaronb
- · Replies 1 ·
Energy stored in capacitance of a squid
- rayhan619
- · Replies 6 ·
How Fast Does the Collar Travel Before Hitting Stop B?
- joemama69
- · Replies 19 ·
Determine how long puck takes to cross ice
- j1249
- · Replies 12 ·
Slowing RC charging and discharge while maintaining visible current
- Ikaa
- · Replies 2 ·
How Much Gas Must a Space Probe Expel to Alter Its Course by 30 Degrees?
- HGM2112
- · Replies 20 ·
Period of identical springs with different amplitudes in simple harmonic motion
- madah12
- · Replies 7 ·
How is density linked to mass and mols?
- JosephF
- · Replies 6 ·
Simple harmonic motion velocity and acceleration
- alexandertg6
- · Replies 3 ·
Fixing Light Issues in CD Readers
- nokia8650
- · Replies 2 ·
Electromagnetic Induction (Flux linkage)
- JosephF
- · Replies 4 ·
Finding satellite orbital period at 161000 m altitude
- Oijl
- · Replies 5 ·
How Do You Calculate Power Loss in High-Voltage Transmission Lines?
- mlsohani
- · Replies 3 ·
Gravitation (Potential Energy)
- Oijl
- · Replies 4 ·
Capacitor Connections and Charge Conservation
- ursulan
- · Replies 2 ·
How Do I Build a Logic Gate for a Voting System?
- JosephF
- · Replies 3 ·
Solve Friction Work Problem: Boy Pulls Wagon 25.0kg 20.0m 60.0N 0.214
- Avis
- · Replies 2 ·
Is current measured in Watts or kW?
- JosephF
- · Replies 6 ·
Finding upper and lower bound superposition frequencies of ultrasound pulses
- Mugen112
- · Replies 1 ·
Lab report questions, gas thermometer
- fluidistic
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Doppler Shift for Traffic Light Colors
- Cheezay
- · Replies 5 ·
Neutron, minimum potential energy, heisenberg uncertainty
- Yroyathon
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Lorentz force on current-carrying wire
- quasarpulse
- · Replies 1 ·
Diffraction gratings and intensity
- Deneb Cyg
- · Replies 2 ·
Calculating Tensions in a Suspended Box with Two Ropes
- riot13
- · Replies 5 ·
Finding n in the polytropic equation PV^n=C
- Gorz
- · Replies 10 ·
Calculating the Distance Traveled by an Object Up an Incline
- tigerengineer
- · Replies 4 ·
Finding velocity as a function of time when acceleration depends on velocity
- vs55
- · Replies 6 ·
Finding angular velocity of pulley with time-varying torque
- rmunoz
- · Replies 2 ·
Displacement vs distance traveled in simple harmonic motion over three periods
- blazeuofa
- · Replies 2 ·
Generalized coordinates of a couple harmonic oscillator
- phagist_
- · Replies 5 ·
Calculating Energy Dissipation in an RC Circuit
- ursulan
- · Replies 2 ·
Magnetic Dipole Moment of a Coil
- jumbogala
- · Replies 8 ·
Charge and potential difference across three capacitors after switch flips
- rayhan619
- · Replies 7 ·
Solving Projectile Motion Equation for Distance
- roldy
- · Replies 3 ·
Calculating Object Distance from Lens with Magnification and Focal Length
- hardwork
- · Replies 2 ·
How can you use an ammeter to measure a voltage of 5.0 V?
- rayhan619
- · Replies 4 ·
Weight on a Hypothetical Planet
- raptik
- · Replies 5 ·