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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Where Will the Final Image Be Located in a Two-Lens System?
- withthemotive
- · Replies 1 ·
R1 350 Ohms: What Current Flows at 50V?
- x^2
- · Replies 3 ·
Force on 2 Masses Homework: FBD, N3, Acceleration & Force
- loka
- · Replies 1 ·
Roational Inertia of a triangle
- joserse46
- · Replies 4 ·
Solve EMF & Power for Current & Resistor Homework
- swede5670
- · Replies 10 ·
Finding the capcitance of this capacitator
- Dell
- · Replies 13 ·
Finding Period with Double Stars
- rss14
- · Replies 1 ·
Determining Uncertainty in Position using Heinsburg's Uncertainty Principle
- aquella7
- · Replies 1 ·
What Frequencies Form Standing Waves in a Microwave Cavity?
- holaholayo
- · Replies 2 ·
What Is the Acceleration of the Inclined Plane with an Ice Cube Sliding Down?
- tamref
- · Replies 3 ·
How Do Kepler's Laws Explain Satellite Orbits in Simulated Experiments?
- Miriverite
- · Replies 1 ·
R Network- finding total resistance.
- GDGirl
- · Replies 2 ·
Fundamental Frequency of Open and Closed Tube
- veronicak5678
- · Replies 2 ·
Solve Torque Question: Will Free Point B Go Up?
- toqp
- · Replies 1 ·
Is My Method for Calculating Pressure Difference in a Venturi Meter Correct?
- Gorz
- · Replies 1 ·
Calculating Centrifugal Force of a Car on a Curved Road
- Ry122
- · Replies 5 ·
Thin film light interference question
- ia22
- · Replies 1 ·
What is the difference between an induced emf and a back emf?
- jayjay112
- · Replies 2 ·
Elastic Collision: 1kg Object, 0.7kg Object, 0.2s Interval
- ironhawk316
- · Replies 1 ·
How Do You Calculate Thermodynamic Quantities for a Compressed Diatomic Gas?
- ky92
- · Replies 13 ·
Magnetic poles (A simple question but I dont know how to answer it?)
- jayjay112
- · Replies 1 ·
Which Hand Rule Determines Current Direction in Magnetic Fields?
- jayjay112
- · Replies 7 ·
Thevenin's equivalent circuit problem
- backstance
- · Replies 5 ·
Calculating Final Speed & Angle of a Rocket Motion
- tamref
- · Replies 4 ·
What Is the Final Velocity of a Mass Accelerated by a Force?
- lisafeary
- · Replies 2 ·
Galileo's Incline plane Help for SAC.
- paul265
- · Replies 5 ·
Seperation of the induced charge
- 385sk117
- · Replies 2 ·
Reverse Magnetism in Bar Magnet: Physics Theory Explained
- WarFace
- · Replies 1 ·
How to Calculate New Resistance in a Stretched Wire with Uniform Cross Section?
- Steven7
- · Replies 8 ·
Pendulum speed with only height from equilibrium
- Serpentia
- · Replies 4 ·
Phase Behavior of RL Circuits: Explained
- driedupfish
- · Replies 1 ·
How Does Charging by Induction Work with a Positive Object?
- jgens
- · Replies 1 ·
Air Pressure and Net Force on a Door in a Tornado
- NPM
- · Replies 3 ·
Solving Refraction Problem: Aim Flashlight at What Angle?
- roxxyroxx
- · Replies 7 ·
What is the net torque on a wheel with given dimensions and direction?
- aaronb
- · Replies 4 ·
Circular Motion: Calc Centripetal Force on Amoeba
- brentwoodbc
- · Replies 6 ·
Determining Natural Length of a Spring
- TG3
- · Replies 2 ·
Calculating Average Intensity of a laser blackboard pointer
- patelpalak
- · Replies 5 ·
Work to Stretch Spring from 35cm to 40cm
- TG3
- · Replies 2 ·
Solve Circular Motion: Satellite Height, Speed, Location
- T71979
- · Replies 2 ·
Electric Circuit Homework: Parallel & Series Heating Power
- Finland
- · Replies 1 ·
What is a Suitable Projectile for a Small Trebuchet?
- davie08
- · Replies 1 ·
Friction: Body Movement on Slope
- DIrtyPio
- · Replies 12 ·
Solving for Unknown Frequency: Tuning Fork Beats
- veronicak5678
- · Replies 2 ·
Electric Field Equations: What Determines the Use of r vs. r^2?
- Air
- · Replies 13 ·
Where Can I Find Sinusoidal Problems for RC and RL Circuits?
- m.farrukh
- · Replies 2 ·
Special Relativity: Why is Length Contraction Inverse of Time Dilation?
- flooflar
- · Replies 2 ·
What Is the Distance Traveled by a Disc on a Block Before Coming to Rest?
- chingcx
- · Replies 1 ·
How much charge stored in capacitor ?
- ixtra
- · Replies 2 ·
Angular acceleration and angular velocity
- heyrefusuck
- · Replies 3 ·
Pulley and block system tension & acceleration
- heyrefusuck
- · Replies 1 ·
The Dot Product and Cross Product: Finding the Angle Between Two Vectors
- raptik
- · Replies 3 ·
Parachutist problemNeed help where to begin
- platonas1
- · Replies 3 ·
What Is the Coefficient of Static Friction for a Ladder Leaning Against a Wall?
- kritzy
- · Replies 7 ·
Electromagnetism calculation help
- cleggy
- · Replies 1 ·
Finding the coefficient of kinetic friction using impulse/momentum
- cjdavis7
- · Replies 8 ·
What Is the Speed of the Second Puck After a Head-On Collision?
- lilmissbossy
- · Replies 5 ·
Thermal Expansion Ethanol Problem
- Fizzicist
- · Replies 5 ·
Rotational Mechanics(The concept of spinning)
- FedEx
- · Replies 6 ·
Potential difference in parallel - capacitors
- StuckInPhysic
- · Replies 6 ·
Impossible heisburg uncertainty question that makes no sense
- footballfreak
- · Replies 4 ·
Force exerted on inside of a box by a gas
- aolson
- · Replies 4 ·
Calculate Tension in String: m1=4.50 kg, m2=7.50 kg, a=1.4 m/s^2
- itsmyflow
- · Replies 2 ·
What is the Minimum Uncertainty in Block's Speed on a Frictionless Surface?
- footballfreak
- · Replies 4 ·
Estimate the density of the water
- kritzy
- · Replies 4 ·
Object Lifted By Cord (Stress/Tension Problem)
- kritzy
- · Replies 3 ·
Help with Spring Problem - Find a Function & Position at t=pi/12
- infinityhaiti
- · Replies 9 ·
Thermodynamic Work: Find w P, V, T Not Constants
- thejinx0r
- · Replies 1 ·
Angular position, speed, and acceleration
- aaronb
- · Replies 2 ·
Calculating Width of Single Slit Diffraction Pattern
- phy112
- · Replies 5 ·
What Angles Do Colliding Pendulums Reach Post-Elastic and Inelastic Collisions?
- jg597
- · Replies 29 ·
I used to be good at phyics, but
- aviodont
- · Replies 31 ·
B-field Component of Electromagnetic Wave After Change in Time
- x^2
- · Replies 2 ·
What Is the Efficiency of a Monoatomic Ideal Gas Cycle?
- diegzumillo
- · Replies 10 ·
Resonance & Tubes: Frequency of Tuning Fork
- m.l.
- · Replies 1 ·
Energy Conservation: Determining Forces on Particles
- cleggy
- · Replies 8 ·
Understanding the Zero Magnetic Field at the Center of a Square - Explained
- Nimmy
- · Replies 5 ·
How Do You Calculate the Radius of a Copper Cable Using Ohm's Law?
- Malaya
- · Replies 1 ·
Focal length of her contact lenses
- phy112
- · Replies 2 ·
Mercedes-Benz on a hill (friction, normal force) Please help
- BATBLady
- · Replies 3 ·
Calculating Probability of Particle in a Box
- Kruum
- · Replies 4 ·
Voltage/current in circuit with two temperature sensors
- Mårten
- · Replies 15 ·
Calculating earth's speed using radius and speed of light, etc.
- DDRchick
- · Replies 8 ·
Point charges arranged as a trianngle
- jenzao
- · Replies 1 ·
Temperature and Kinetic Energy question
- 9giddjl
- · Replies 2 ·
Distance between lense and film to get a focused picture
- phy112
- · Replies 1 ·
Comparing power output of Solar Panels/cells
- jonnyrocks
- · Replies 3 ·
Question on heat transfer of a plane wall
- sero2000
- · Replies 1 ·
What Is the Pressure on an Object 10m Below Sea Level?
- laura297
- · Replies 2 ·
Easy Acceleration / Friction question
- dglenn9000
- · Replies 6 ·
How Do You Calculate Rotational Inertia for a Solid Block?
- seraphimhouse
- · Replies 1 ·
How to Calculate Initial Radioactive Activity for Patient Treatment?
- soul5
- · Replies 1 ·
Why Does the Tension in the Lower Rope Not Depend on Mass M1?
- tizzful
- · Replies 5 ·
Maximum Height Reached by Block on Spring
- Ry122
- · Replies 4 ·
Heat Pump Q: Cost of Winter Heat w/ 75% CoP
- ewnair
- · Replies 4 ·
Evaporation from a swimming pool
- jabbie3
- · Replies 1 ·
How far has the spring been compressed?
- Ry122
- · Replies 1 ·
Depth of lake (Pressure/fluids)
- Elbobo
- · Replies 2 ·