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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Finding the electric field of a electric quadrupole
- n387g
- · Replies 6 ·
Orbital period of asteroid 500 million km from the sun
- Havenater23
- · Replies 11 ·
Entropy of Cube-Water System Problem
- VitaX
- · Replies 5 ·
Relative velocity - plane flying
- jensson
- · Replies 1 ·
Proton kinetic energy and work in electric field
- baller2353
- · Replies 2 ·
2 balls thrown, what is the speed
- jensson
- · Replies 6 ·
How Does Relativistic Kinetic Energy Derive from Force Integration?
- kudoushinichi88
- · Replies 1 ·
What is the Plane's Bearing from Its Original Position After Changing Course?
- nettie2311
- · Replies 3 ·
How Do You Calculate the Magnitude and Direction of Coplanar Forces?
- nettie2311
- · Replies 3 ·
Tranverse velocity of a point on a string
- jegues
- · Replies 7 ·
Solving the Inelastic Collision of 3 Balls
- kk727
- · Replies 2 ·
Coulomb ( Electric force and charge )
- asz304
- · Replies 1 ·
How Does Constant Pressure Affect Heat Transfer in Oxygen?
- VitaX
- · Replies 6 ·
Vectors and Acceleration in a Straight Line
- Peter G.
- · Replies 2 ·
Finding acceleration when max speed is reached in 3s then held
- 7yler
- · Replies 6 ·
Adding power flux densities from multiple sources
- Wotwot
- · Replies 3 ·
How Do You Calculate the Magnitude of a Resultant Vector from Multiple Forces?
- nettie2311
- · Replies 3 ·
Finding the Velocity for Zero Hinge Force in Rigid Body Collision Problem
- zorro
- · Replies 14 ·
Static friction is my answer correct?
- Femme_physics
- · Replies 4 ·
How can I find the force needed for constant velocity with known variables?
- flanders
- · Replies 14 ·
Finding scalar α so that L - αs is perpendicular to L
- ch33zer
- · Replies 3 ·
Is my forces sketch correct for the engine experiment on a plane?
- Femme_physics
- · Replies 6 ·
How Do You Calculate the Resultant Force from Concurrent Coplanar Forces?
- nettie2311
- · Replies 5 ·
'Reversing' a moments calculation
- Beamy
- · Replies 1 ·
Electric Forces between charges
- thst1003
- · Replies 1 ·
Find the Mass of Sun if given are T and d?
- arddi2007
- · Replies 3 ·
Scaling law for static buoyancy
- farahtc
- · Replies 1 ·
What is the drag force on a car traveling at different speeds?
- sona1177
- · Replies 6 ·
Angular momentum theory problem
- charbon
- · Replies 1 ·
Sound diminishes from x to y over what distance?
- gmmstr827
- · Replies 9 ·
A stone is projected vertically upwards
- tehmatriks
- · Replies 7 ·
Projectile, finding landing distance - given landing angle
- Laura1321412
- · Replies 2 ·
How Does Changing Mass Density Affect Harmonics in Standing Waves?
- thst1003
- · Replies 1 ·
What is the magnitude of the resultant of the following vectors?
- nettie2311
- · Replies 2 ·
Ball thrown upward on accelerating railroad car
- Torpedo007
- · Replies 6 ·
Force between two charged bodies
- runningirl
- · Replies 8 ·
How can I effectively solve statics problems in 3-D?
- bengaltiger14
- · Replies 3 ·
Coulombic fundamental force to the Gravitational fundamental force
- runningirl
- · Replies 2 ·
Deceleration and Forces in a Drop-Forge Hammer
- furor celtica
- · Replies 9 ·
Calculating the Force Between Two Electrons at a Distance of 2 Angstroms
- 1101
- · Replies 5 ·
Mag field in a current carrying square
- cupid.callin
- · Replies 2 ·
Why do oppositely charged particles deflect opposite ways in a magnetic field?
- sona1177
- · Replies 2 ·
What is the acceleration of a block being pulled up a slope by a 140 N force?
- joepro
- · Replies 3 ·
Projectile, Finding Initial Velocity
- Laura1321412
- · Replies 3 ·
What is the coefficient of friction between the plane and the block?
- EJ25
- · Replies 3 ·
Wire radius from interference fringes
- SL_1719
- · Replies 7 ·
Solve Refraction Problem: Archimedes' Gold Crown
- thenabforlife
- · Replies 1 ·
How Do You Calculate the Maximum Kinetic Energy of a Dropped Sign?
- joepro
- · Replies 3 ·
Power and kinetic energy for pulling a 32200N wagon at 25 km/hr
- joepro
- · Replies 5 ·
Roller coaster and spiderman swing circular motion problems
- rain_ex
- · Replies 1 ·
Solving Catapult Problem: Launch Speed, Time in Air, and Impact Speed
- Mainian
- · Replies 2 ·
Calculating Pressure from Falling Sand Shower
- JSmith123
- · Replies 4 ·
What Determines the Point of Minimum Loudness in Speaker Interference?
- Student3.41
- · Replies 2 ·
How to Calculate Magnetic Field for Uniform Surface Current on XOY Plane?
- mmainak
- · Replies 1 ·
Point charge and electric flux
- channel1
- · Replies 2 ·
What are the correct conclusions for the change in entropy in this reaction?
- tensirk
- · Replies 1 ·
Observational error, identical measurement results
- player1_1_1
- · Replies 2 ·
Uncertainty in photon frequency from atomic lifetime
- xregina12
- · Replies 1 ·
Work of expansion with a piston pushed 10 cm against constant pressure
- tweety1234
- · Replies 2 ·
Find Acceleration of Objects with Kinetic Friction
- anonymity
- · Replies 8 ·
Will Tara collide with Sean's van in a tunnel?
- stephi
- · Replies 2 ·
Calculating the Hang Time of a Kicked Football
- stephi
- · Replies 2 ·
Phase difference between reflections from top and bottom of a water film
- SL_1719
- · Replies 2 ·
Vector and scalar magnitude problem
- lsu777
- · Replies 4 ·
Calculating Electric Flux through a Cube with a Moving Charge
- 123yt
- · Replies 6 ·
MCAT Work and Friction Problem
- Taminem
- · Replies 2 ·
What is the change in energy required for the Earth to escape the Sun's orbit?
- OshKosh
- · Replies 13 ·
Force of an elevator on person riding it
- captainjack
- · Replies 2 ·
Solving the Violin String Problem: Frequency, Wave, and Tension
- NvZnPhysics
- · Replies 1 ·
Finding speed of a string given length, mass, and velocity of wave
- mandy9008
- · Replies 1 ·
Finding the Coefficient of Friction(due tommorow, )
- DarkOtaku
- · Replies 2 ·
Simple Ray Optics Problem-Check my answer?
- bcjochim07
- · Replies 5 ·
Calculating Resonance Frequency and Amplitude in RLC Circuits
- theuniverse
- · Replies 33 ·
Find the mean time between collisions in a wire
- smashyash
- · Replies 1 ·
Why are electric field lines also referred to as "lines of force"?
- TypeFun
- · Replies 4 ·
Trig Substitution for ∫ x/(x^2 + x+ 1)dx: Simplifying Complex Integrals
- vande060
- · Replies 4 ·
Gauss's Law - A hollow sphere with inner and outer radius
- roman15
- · Replies 1 ·
On Planet X, a 70 kg object can be lifted by a force of 400 N
- EJ25
- · Replies 2 ·
Half-wave rectifier output voltage and current analysis
- maherelharake
- · Replies 3 ·
Maximum speed of point on a string (Waves)
- jegues
- · Replies 3 ·
His Kinetic Energy to Kinetic energy of the snow?
- ProPM
- · Replies 3 ·
Clarifying Sound Intensity and Frequency
- Matt1234
- · Replies 6 ·
Electric Fields Lines of a pair of Finite Parallel Plates
- TypeFun
- · Replies 4 ·
Calculate Horsepower for Pumping Water from 50m Depth at 10m/s Flow Rate
- jamesjd
- · Replies 11 ·
Period of oscillations for a floating oak block in water
- Spiewgels
- · Replies 13 ·
Induced voltage in expanding circular loop with Faraday's law
- kontejnjer
- · Replies 1 ·
Relativistic energy/momentum, massless particles
- zippideedoda
- · Replies 3 ·
Airplane Traveling East against Wind
- zjamal2
- · Replies 3 ·
How does current split between parallel branches with different resistances?
- jimmy42
- · Replies 11 ·
How do photon energy and mechanical wave energy depend on amplitude and frequency?
- yvonnars
- · Replies 1 ·
Understanding Maxium Displacement Problem in Serway 8th Edition Chapter 3
- 1joey1
- · Replies 2 ·
Angle of Projection from Height and Range
- atmega-ist
- · Replies 1 ·
Thermal Conductivity Ice Question
- VitaX
- · Replies 24 ·
Block sliding down incline shaped as circle
- qtbuy07
- · Replies 1 ·
How much energy is transferred to the water as heat?
- VitaX
- · Replies 8 ·
Current in Induction: Calculating Mutual Induction
- seanhbailey
- · Replies 4 ·
Finding tensions in two strings supporting a 20 kg mass
- Mathguy197
- · Replies 5 ·
How to Calculate Coupling Coefficient Without Mutual Inductance?
- seanhbailey
- · Replies 1 ·
What is the speed of the rock right before it hits the ground?
- turtledove
- · Replies 8 ·