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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Potential difference in circuit with battery, resistors, switch, capacitor
- awertag
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What is the Max Speed for a Car on a Level Circular Curve?
- d.tran103
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What Is the Pulse Delay Time for a 20-Foot Coax Cable?
- maherelharake
- · Replies 4 ·
Pendulum wrapping around a peg and swinging completely around it
- emmy
- · Replies 7 ·
A 10 lb block is attached to unstretched spring
- Ryan1059
- · Replies 3 ·
Pulse Height Of Pulse Amplifier
- baltimorebest
- · Replies 6 ·
Solving the Pool Depth with Refraction in Water
- jegues
- · Replies 10 ·
Coulomb Force Point Charges on Cube
- wonderswan
- · Replies 12 ·
Friction and Acceleration in Automobiles
- Marioqwe
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Instantaneous center of rotation in piston-crank mechanism
- smashbrohamme
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Speed of a ball rolling down an incline
- captainjack
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Oscillation amplitude of block
- Badmouton
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Proving: All Points on Ax + By + Cz = 0 Lie in Plane Perpend. to Ai + Bj + Ck
- MozAngeles
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Solving equations simultaneously circuits
- spottedcow913
- · Replies 2 ·
Solving for a Train Without Knowing Mass
- kmm0830
- · Replies 1 ·
Total Force on Wire: Solving a Physics Problem
- Fisicks
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Cart pulled by cord over pulley: finding change in kinetic energy
- math_head7
- · Replies 2 ·
How do you solve integrals with e to a power?
- opeth_35
- · Replies 37 ·
Angular acceleration of dipole in uniform electric field
- cupid.callin
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Speed at which to hurl a projectile?
- vabtzeexo
- · Replies 3 ·
Discharging of a capacitor through a light bulb.
- smahapatra3
- · Replies 2 ·
What is the specific heat of seawater?
- lucy12h
- · Replies 1 ·
A challenging friction and forces question
- hibachii
- · Replies 5 ·
What is the angle between vectors A and B?
- MozAngeles
- · Replies 10 ·
Mechanics (general motion of a rigid body)
- Incontro
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Finding angle in ring support wires and tension in angled rope
- Peter G.
- · Replies 8 ·
Moment of inertia of a disc with a hole
- iva
- · Replies 2 ·
Hydrostatic Pressure: Submarine Crew Escape Force Needed
- Bassalisk
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Distance between Binary Star Systems
- G01
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Electric Field of an Infinitely Long Insulating Cylinder
- sicrayan
- · Replies 3 ·
Angle of incidence for light from flashlight at feet to reach eyes in mirror
- TheHamburgler1
- · Replies 3 ·
Calculating Work and Speed on a Ramp
- Zunden
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Integral of e^(i x v) /(x^2 + a ^2) from -Infty to Infty
- kurushishraqi
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Calculating Time Dilation on an Airplane in Special Relativity
- awygle
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Finding energy released when water freezes on ice
- chawki
- · Replies 18 ·
How Does Force Affect the Time in a Domino Effect Experiment?
- whatwasthat
- · Replies 2 ·
Which suspect's rifle matches the bullet's kinematics?
- mclj
- · Replies 1 ·
Why electric field and drift velocity vary in series resistors
- zorro
- · Replies 4 ·
How Far Should the Runner Sprint to Finish a 10km Race in Under 40 Minutes?
- frog210293
- · Replies 11 ·
Relativity - Lorentz Transformation
- missmaths.
- · Replies 1 ·
Calculate Acceleration, Velocity and Force of a Piston
- Pseudopro
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Calculating Work Done by Force of Gravity on a 0.245 kg Ball
- alfredo24pr
- · Replies 11 ·
Find the current and potential difference
- spice1510
- · Replies 3 ·
What is the maximum power and corresponding current for a car battery?
- chawki
- · Replies 1 ·
Maximum Charge on Parallel-Plate Capacitor with Mica Dielectric
- JennV
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Is the Force Conservative in a One-Dimensional System?
- atlantic
- · Replies 12 ·
What are the different methods to find the volume of copper wire?
- Heich Aue
- · Replies 2 ·
Does Current Depend on Wire Diameter?
- Bogus_Roads
- · Replies 2 ·
Magnetic field produced by coil and solenoid
- mikelepore
- · Replies 2 ·
Double slit interference with small angle approximation
- jegues
- · Replies 8 ·
Dielectric Breakdown-max potential difference
- PennStateFan1
- · Replies 3 ·
Minimum film thickness for destructive interference with no reflection
- akmphy
- · Replies 6 ·
Special Relativity and muon decay
- astr0
- · Replies 5 ·
Which Charge is Negative in an Electric Field Diagram?
- damu123
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What is the Kinematics of a Particle Leaving a Ledge?
- jjones1573
- · Replies 10 ·
How do I solve this Thick Film, Double Slit problem?
- jegues
- · Replies 4 ·
AC emf applied to capacitor and lamp in series
- mja78
- · Replies 2 ·
Calculating Heat and Work in Thermodynamics of Gas at 100°C and 1.01 x 10^5 pa
- hoyy1kolko
- · Replies 1 ·
What Went Wrong in Calculating the Velocity of Carts C and B After Collision?
- jacegalvin
- · Replies 2 ·
Problem solving for time when average power and total energy is given
- Zunden
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Acceleration and velocity (conceptual) question
- mateomy
- · Replies 4 ·
Can Displacement Be Calculated Without Drawing a Scale Diagram?
- Eqlius
- · Replies 3 ·
Deriving Formulas for Work/Energy Problems
- CL1349
- · Replies 2 ·
Tension in a vibrating string at a given frequency
- sfdrew
- · Replies 2 ·
Finding n₁ when light undergoes total internal reflection
- jegues
- · Replies 3 ·
How Does the Smaller Block's Slide Affect the Larger Block's Acceleration?
- cupid.callin
- · Replies 10 ·
Calculating Net Work, Heat Transfers in a Thermodynamic Cycle
- scavok
- · Replies 3 ·
Lorentz Transformation - Proof that t'2 - t'1 >0
- zacl79
- · Replies 6 ·
At what tension does a 10kg box slip on a 20kg sled on a 20° slope?
- mourat
- · Replies 1 ·
A car placed on incline and a mass placed on the car
- eren.kizildag
- · Replies 3 ·
How to solve rotational work and energy problem?
- Ailiniel
- · Replies 4 ·
Calculating Work Done by a Batter on a Baseball
- darkley
- · Replies 4 ·
Calculating SAR from multiple sources
- Wotwot
- · Replies 1 ·
How Do You Calculate Tension and Angular Acceleration in a Pulley System?
- Drewbie
- · Replies 1 ·
When does a wire loop in a magnetic field have maximum and minimum current?
- Clairepie
- · Replies 1 ·
Understanding about differentials?
- DannyPhysika
- · Replies 1 ·
What Is the Radius of Curvature for a Horizontally Thrown Stone After 3 Seconds?
- lydiazmi
- · Replies 3 ·
Does a 90-degree contact angle change bubble volume when touching a container wall?
- Otaku123445
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Volume of object that weighs 200N more in air than in water
- racassidy
- · Replies 2 ·
How to Determine Relative Velocity Using Vector Subtraction
- Peter G.
- · Replies 5 ·
How Does Water Angle in a Rotating Carousel Microwave?
- metallica007
- · Replies 3 ·
Elastic collision between neutron and carbon-12 nucleus
- lydiazmi
- · Replies 6 ·
Rotational Motion of a slender rod
- zorro
- · Replies 5 ·
Calculating Collision: How Long Until Two Continents Collide?
- CrossFit415
- · Replies 4 ·
Does This Engine Violate the First or Second Law of Thermodynamics?
- Aztral-
- · Replies 5 ·
What is the linear velocity of a point on a swinging rod before it hits a wall?
- T-Rent
- · Replies 5 ·
Prove 4f is the Min. Distance Between Conjugate Points for Thin Lens
- fluidistic
- · Replies 9 ·
Simple beginning physics, mindfart
- Jake4
- · Replies 2 ·
Uniform Circular Motion and Water Falling From A Bucket
- yrsnkd
- · Replies 2 ·
Seafloor spreading over 100 million years with 2000 km length
- CrossFit415
- · Replies 1 ·
Determining the mass of the black hole at the centre of the Milky Way
- moonkey
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Time dependent Resistance in an RC-circuit
- gonzalesdp
- · Replies 5 ·
Finding penguin mass m2 from tensions in a four-penguin chain on ice
- dorkymichelle
- · Replies 8 ·
Rotational Inertia of compass needle
- olyviab
- · Replies 1 ·
Why can this formula be applied for diffraction gratings?
- Dragynfyre
- · Replies 1 ·
Finding tension in T3 and T4 in an equilibrium problem
- physicspat
- · Replies 4 ·
Calculate Speed of Water Ejected from Hose
- dvyu
- · Replies 9 ·
Ball on String Elastic Collision
- jzwiep
- · Replies 7 ·
Tangential and Radial Acceleration of car around a curve
- 123scope
- · Replies 7 ·