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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Force constant of a spring launching a satellite
- ph123
- · Replies 4 ·
Not sure where to start what formula to use
- csquared
- · Replies 1 ·
Pendulum period integral without small angle approximation
- Ja4Coltrane
- · Replies 9 ·
Collision with Spring: Solving for Distance and Final Velocities
- kle89
- · Replies 2 ·
Velocity of projectile launcher
- Elliian
- · Replies 5 ·
Proving Charge Distribution Inside a Sphere Cavity
- gandharva_23
- · Replies 7 ·
How Do You Calculate Voltage, Power, and Current in a Combination Circuit?
- jenita
- · Replies 6 ·
Dc Circuits - Voltmeter/ammeter
- abm4life
- · Replies 8 ·
Why does current stay the same through different pipe sections?
- asdf916
- · Replies 1 ·
Calculating Orbital Radius of Ganymede using Orbital Period
- trekkie1701c
- · Replies 3 ·
How Far Should an Air Tanker Release Its Load to Hit a Target?
- kle89
- · Replies 4 ·
Understanding Dark Fringe at Contact Lenses
- shehri
- · Replies 1 ·
Angular momentum when putty blob flies off rotating turntable
- yus310
- · Replies 1 ·
How Is the Number of Particles Calculated in a 1D Diffusion Slab?
- poiuy
- · Replies 3 ·
Finding voltage, current and power in a three-bulb series circuit
- jenita
- · Replies 4 ·
What Does u Represent in Electrical Charge Measurements?
- ND3G
- · Replies 3 ·
Does +4.3 C mean a positive or negative charge?
- ND3G
- · Replies 3 ·
How Does Lens Placement Affect Image Height and Orientation?
- Rawr
- · Replies 1 ·
Understanding of Kinetic theory of matter
- greenfloss
- · Replies 2 ·
How can the acceleration of a body in an ellipse always point towards a focus?
- prabhat rao
- · Replies 2 ·
How Does a Charged Particle Behave in a Non-Uniform Electric Field?
- prabhat rao
- · Replies 2 ·
Solving a Pulley Problem: Finding the Scale Reading
- harmeet_angel
- · Replies 4 ·
Why Are There Two Different Expressions for Uncertainty in Quantum Mechanics?
- Amith2006
- · Replies 2 ·
What Does d Represent in Calculus and Physics Equations?
- AznBoi
- · Replies 3 ·
Specific heat capacity and latent heat of fusion
- mumay
- · Replies 4 ·
Specific Heat Capacity of a brass cylinder
- greenfloss
- · Replies 2 ·
How Do You Calculate Electric Field and Potential at Specific Points?
- Tsar_183
- · Replies 2 ·
What is the orbital velocity of the 2nd satellite?
- sandersky
- · Replies 5 ·
Thermodyamics, two balls with same temperature, different elevation
- epl_manutd
- · Replies 7 ·
Elastic Collision of moving cart
- A_Moose
- · Replies 19 ·
Electric field and potential inside and outside a uniformly charged sphere
- varunsarda88
- · Replies 2 ·
Voltage drop in jump lead cables at 100 A
- CathyLou
- · Replies 3 ·
Calculate RMS Speed of Nitrogen at 227°C
- Kill.Me.No
- · Replies 1 ·
Combinination of two lenses, converging and diverging
- Mana Knight
- · Replies 1 ·
Solving Cyclotron Movement Problem with 500V and 0.790B
- Canadian
- · Replies 1 ·
Frequency of an Accelerating Pendulum
- e(ho0n3
- · Replies 5 ·
Particle sliding off turntable - find friction
- vertex78
- · Replies 6 ·
What is the Relationship Between Uncertainty in Diameter and Radius?
- swain1
- · Replies 4 ·
What is the angular acceleration of the rotating platform?
- Elkay
- · Replies 5 ·
Calculating Tangential Acceleration of a Particle on a Flywheel
- vertex78
- · Replies 3 ·
How much charge is stored in the Earth with a surface electric field of 100N/C?
- physicmania
- · Replies 2 ·
Tension on a Rope with Variable Mass Distribution
- Solidmozza
- · Replies 2 ·
Solve Homework: Find Acceleration & Reaction Force of Wedge
- Bucky
- · Replies 5 ·
Where does the 50% intensity reduction in polarized light come from?
- icebox105
- · Replies 2 ·
Gradient, potential and electric field
- brad sue
- · Replies 1 ·
What is optical coupling?
- Psi-String
- · Replies 7 ·
Energy transferred to eardrum from sound wave
- kingwinner
- · Replies 2 ·
Balance a 12m Board with 500kg and 80kg Man
- linuxux
- · Replies 8 ·
Does a 10 cm glass with friction coefficient 0.30 tip or slip when pushed?
- linuxux
- · Replies 1 ·
Simple Harmonic Motion of an air-track glider
- saralsaigh
- · Replies 3 ·
What type of clock is capable of measuring periods of milliseconds?
- swain1
- · Replies 3 ·
Electrostatic potential energy for concentric spheres
- wombat7373
- · Replies 3 ·
Why Is Current the Same in Series Resistors?
- Noesis
- · Replies 18 ·
Does Copper's Lack of Dipole Movement Increase Thermal Radiation in Calorimetry?
- nithin
- · Replies 2 ·
How Do You Calculate the Separation Between Two Converging Lenses?
- Jared944
- · Replies 1 ·
Oil drop charge and how to use plate separation and potential difference
- linuxux
- · Replies 7 ·
Magnetic Force, Resistance, Faraday's Law
- Eris13
- · Replies 1 ·
What is J.J. Thomson's Experiment on Charge to Mass Ratio of an Electron?
- BlueTreesGreenSkies
- · Replies 2 ·
Does the Same Copper Cup Equalize Heat Loss Rates for Different Liquids?
- nithin
- · Replies 1 ·
Magnetic Field of wire on rectangular loop
- BrettB
- · Replies 5 ·
Does Newton's Law of Cooling Apply Equally to Different Liquids?
- nithin
- · Replies 2 ·
Calculating the Width of a Valley Using Echo Time Delay
- tdk
- · Replies 4 ·
Why does energy conservation work for a projectile launched horizontally off a cliff?
- platina
- · Replies 4 ·
Average effective dipole moment?
- brad sue
- · Replies 5 ·
Traditional double Atwood's machine
- rahuldandekar
- · Replies 2 ·
Angular acceleration of a pulsar
- vertex78
- · Replies 1 ·
Refrigerator Light (power and Carnot engines)
- bugonwndshld
- · Replies 9 ·
Why does a sample with non-constant resistance obey Ohm's law?
- blackout85
- · Replies 3 ·
Wave Race 2: Explain the logic behind this formulary?
- pugfug90
- · Replies 3 ·
Hall Effect Measurement Error Analysis
- Mindscrape
- · Replies 2 ·
Solving for Earth's Velocity After Collision with Asteroid
- smh001
- · Replies 5 ·
Finding current through 20 ohm resistor in multi-loop circuit
- jesuslovesu
- · Replies 2 ·
Finding the masses of two blocks in a pulley system using work-energy theorem
- ph123
- · Replies 3 ·
Calculating the Current Through a 10-ohm Resistor
- blackout85
- · Replies 1 ·
Is this the right formula to use?
- linuxux
- · Replies 1 ·
Electric Field and the weight of an electron
- brunie
- · Replies 6 ·
What Factors Affect the Efficiency of a Siphon?
- lapsaJ
- · Replies 4 ·
How Do Forces Interact on an Inclined Plane?
- gasapple
- · Replies 7 ·
Maximum acceleration machine problem
- imy786
- · Replies 4 ·
Force and centripetal acceleration of electron in Bohr hydrogen atom
- khader
- · Replies 1 ·
Motion of a Particle: Find Speed & Acceleration
- khader
- · Replies 1 ·
Projectile motion from 1 meter high, lands 10 meters away, 60 degree angle
- Jennifer K
- · Replies 1 ·
Distance separating current carrying wires.
- linuxux
- · Replies 1 ·
Calculating Frequency Shift for Temperature Change in Musical Instruments
- Gauss177
- · Replies 1 ·
Ladder horizontal force problem
- tahyus
- · Replies 4 ·
How Does Doubling Mass and Reducing Distance Affect Gravitational Force?
- linuxux
- · Replies 1 ·
How Do You Calculate Angular Velocity of a Sphere on an Incline?
- tahyus
- · Replies 3 ·
Finding Change in Vertical Height of a Suspended Block After Bullet Impact
- Shawh
- · Replies 2 ·
Find an expression for the velocity of the electron and calculate it
- ryoung815
- · Replies 6 ·
Magnetic dipole in a loop of wire
- Saketh
- · Replies 3 ·
How Much Energy Does a Lamp Dissipate with a 0.3 A Current and 6 V Power Supply?
- blackout85
- · Replies 1 ·
V to get C. Calculating Max Capacitance of Coaxial Capacitor
- seang
- · Replies 1 ·
Find the magnitude of the initial acceleration of the rod's center of mass
- fruitl00p
- · Replies 6 ·
How Do I Calculate the Value of g for a Pendulum?
- bidhati
- · Replies 1 ·
Thermodynamics Problem and Fourier's Law
- mrbranches
- · Replies 1 ·
Using conservation of energy to find falling object velocity
- onrytxn
- · Replies 2 ·
How Much Work is Required to Move a Charge Between Equipotential Surfaces?
- blackout85
- · Replies 2 ·
How can conservation of momentum explain the behavior of Newton's cradle?
- rebellion
- · Replies 4 ·
Force of the track on a rollercoaster
- Rasine
- · Replies 3 ·
Magnetic forces exerted by current-carrying wires
- SA32
- · Replies 3 ·