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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Derive Formula for Final Velocity (v2) Without Time
- NeedBetterName
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What is the role of atmospheric refraction in a sunset?
- cris9288
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Finding Forces in a 2D Bridge: Determining Pressure and Tension
- Numeriprimi
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What Is the Net Force and Electric Field on Charge 1?
- waleed.ahmed
- · Replies 3 ·
Motion in fields - Space Shuttle orbiting the Earth
- KrisG
- · Replies 1 ·
Particle in Simple Harmonic Motion
- Willjeezy
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Temperature of filament using its area, power, and emissivity
- Fluxthroughme
- · Replies 8 ·
How Do You Determine the Natural Abundance of 244Hb and 240Hb?
- Eddzzz
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Solving Kinetic Friction: Find Coefficient of Friction from Car Stop
- mels
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Why Does Rotating the Michelson-Morley Apparatus Alter the Time Delay?
- BareFootKing
- · Replies 10 ·
Speed of Jet Plane - Solving the Problem
- Von Neumann
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Frictional force on a block held against a vertical wall
- freddyeddyjor
- · Replies 4 ·
How Is Efficiency Calculated for a Carnot Engine with Given Cycle Parameters?
- Von Neumann
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Suspended charged balls with Coulomb force and small angles
- asdf12312
- · Replies 23 ·
Power Supplied to a vibrating string
- Willjeezy
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Find friction from stopping distance and initial speed.
- Sneakatone
- · Replies 23 ·
Questions about finding position, velocity, acceleration related
- Ryukouki
- · Replies 6 ·
Sound waves travelling different paths
- PhizKid
- · Replies 3 ·
Can Someone Review My Lab's Theory Section?
- Bashyboy
- · Replies 5 ·
Why assume same wavelength when string tension changes after submersion
- ricmacas
- · Replies 1 ·
Proving the Motion of Point P: Vertical or Elliptical?
- nohkie
- · Replies 1 ·
EV vs V, Cutoff Potential Question
- uberclay
- · Replies 4 ·
Help with projectile motion and linear kinematics problems
- coconut62
- · Replies 22 ·
How Long Does It Take for a Father to Catch His Son if He Accelerates from Rest?
- kencamarador
- · Replies 3 ·
Kinetic energy of a block sliding down a ramp
- GoGoGadget
- · Replies 4 ·
Optimizing Physical Pendulum Oscillation: Finding d for Shortest Period
- oreosama
- · Replies 1 ·
Calculating Area Density of Steel Discs
- bpinto
- · Replies 5 ·
Why Does the Textbook Solution Use Average Pressure for Piston Work Calculation?
- theBEAST
- · Replies 9 ·
Force Of Gas In Liquid And Gravity
- hotdogski
- · Replies 1 ·
Electrical charge problem (need assurance on an answer)
- AyooNisto
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Mountain climber 2d forces question.
- boognish
- · Replies 8 ·
Why is a conductor an equipotential if it has charge density?
- anban
- · Replies 1 ·
Basic formula for diffraction grating
- Outrageous
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What is the Acceleration of a Couch Being Pushed at an Angle with Friction?
- gullyb
- · Replies 11 ·
Comparison of direction of forces
- gullyb
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How Much Fluid Was Injected Into the Capillary?
- nayanm
- · Replies 2 ·
Thermal Expansion of a metal ring
- SiriusAboutAstronomy
- · Replies 5 ·
Terminal Velocity: Solving for D
- student34
- · Replies 2 ·
How Do You Solve a Frictionless Pulley System Problem?
- Yosty22
- · Replies 3 ·
Newton's law to find acceleration
- Mangoes
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Where is the particle most likely to be found?
- Levi Tate
- · Replies 25 ·
Rearranging formulas. Accelerations
- kencamarador
- · Replies 1 ·
Optics question - coin at the bottom of a swimming pool
- Genericcoder
- · Replies 1 ·
Static Friction Coefficient Problems
- jklops686
- · Replies 5 ·
Conducting Spheres and Their Charge
- Nathew
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Where in a wineglass does the standing wave forms?
- 06mangro
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How to find Qmax of a capacitor in parallel RC circuit?
- woaname
- · Replies 38 ·
Finding tension forces in a system at equilibrium
- RunningBack
- · Replies 3 ·
Calculating Electric Field and Potential of a Charged Ring Segment
- Octavius1287
- · Replies 9 ·
Work done by gravity and normal force on a block sliding down a frictionless incline
- TheNotoriousWM
- · Replies 3 ·
Young's fringes experiment, interference fringes
- question dude
- · Replies 9 ·
K is the proportionality constant (Hooke's law)
- InvalidID
- · Replies 2 ·
Capacitator Circuit and determining unknown charges voltages
- liliacam
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Velocity and Acceleration together problem?
- kencamarador
- · Replies 5 ·
How Do You Calculate the Moment of Inertia?
- abcde149149
- · Replies 1 ·
Train Question? Uniform acceleration
- kencamarador
- · Replies 10 ·
Distance travelled during braking from 96 km/h in 3.0 seconds
- kencamarador
- · Replies 7 ·
Supernova apparent magnitude when galaxy brightness increases from 18.0 to 17.6
- Froddo
- · Replies 7 ·
A strange electrical circuit - resistance calculation
- KayEl9
- · Replies 16 ·
Physics question involving vectors and force (from Calc II)
- Sooneroo
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Max velocity in force F=4/x²−1 and oscillation period in harmonic approximation
- CAF123
- · Replies 34 ·
Time between sound wave displacements
- PhizKid
- · Replies 10 ·
Statics, beam attached to a wall, reaction forces
- jonjacson
- · Replies 10 ·
Electric Dipole as x l, how do I simplify this correctly?
- Yapper
- · Replies 1 ·
Boat heading angle to reach upstream destination in river
- Dalkiel
- · Replies 18 ·
Finding ball rebound speed given contact time with surface
- KayEl9
- · Replies 7 ·
Bernoulli's equation does not always work?
- theBEAST
- · Replies 3 ·
Find Distance from Screen to Slits in Double Slit Experiment
- rocapp
- · Replies 1 ·
How Does Adiabatic Compression Affect Steam and Water Mixtures?
- zircons
- · Replies 7 ·
Bug crawling outward on spinning CD before slipping
- Voltrical
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How Do You Calculate Force from Acceleration and Change in Direction?
- RobinsoKo
- · Replies 11 ·
Find Moment About Point A Due to Distributed Load
- United
- · Replies 7 ·
Two blocks touching on a table, one with friction and the other w/out
- codytanner16
- · Replies 8 ·
Question regarding Rutherford's atomic model
- daselocution
- · Replies 2 ·
What is the value of the dampening constant?
- HiggsBrozon
- · Replies 5 ·
What Is the Correct Banking Angle for a Road Curve with No Friction?
- x86
- · Replies 1 ·
When input voltage is high, capacitor is charging
- lavindev
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Applying KVL to loop A in a multi-loop circuit
- charlies1902
- · Replies 14 ·
Kinetic energy of ball sliding down slope with electric field?
- asdf12312
- · Replies 13 ·
Alternative methods to solve a circuit using mesh analysis
- nchin
- · Replies 1 ·
Why Does Gravity Affect Work Done in a Simple Pulley System?
- leehufford
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Average and instantaneous velocity
- physicsernaw
- · Replies 4 ·
How to find force of a spring given force constant and length
- Sneakatone
- · Replies 14 ·
Why Does My Circuit Calculation Not Match the Given Solution?
- pyroknife
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How Does a Ball's Velocity and Acceleration Change on a Circular Path?
- x86
- · Replies 5 ·
Calculating the magnetic field inside a field coil
- newageanubis
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Woman standing on a rope problem.
- itchy
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How to find distance using sound waves
- PhizKid
- · Replies 1 ·
Mechanical Energy of a system: Conceptual Problem
- Yosty22
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Isolating time from the displacement equation
- kencamarador
- · Replies 2 ·
Acceleration, a kid, a sled and frictionless surface
- Trigulus
- · Replies 5 ·
Finding max force at bottom of a 2.8m decline swinging on a vine?
- rockchalk1312
- · Replies 2 ·
Plummer Sphere, Density from Potential
- SHISHKABOB
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Voltage on a point charge from a stick of charge
- Colts
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How Is Work Calculated When Moving a Charge in an Electric Field?
- smartdesk
- · Replies 5 ·
How to derive pv^gamma=constant
- milan talaviya
- · Replies 4 ·
Solving for the Height of a Toy Car on an Inclined Loop-the-Loop
- Joshb60796
- · Replies 18 ·
Projectile Motion 2.0- Drag in RL
- ultrapowerpie
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Force to break one, two and three white pine boards
- Howlin
- · Replies 3 ·
How Do Ultrasonic Transducers Calculate Maximum Amplitude and Speed in SHM?
- wayveon
- · Replies 1 ·