Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Cylinder with piston releasing causes gas to expand: final state?
- joemama69
- · Replies 11 ·
Calculate the magnitude of buoyant force
- feelthebeat
- · Replies 1 ·
What are the Rotational Dynamics of a Thin Rod Held by a Pivot Point and String?
- superaznnerd
- · Replies 2 ·
When does car A catch up to car B on a circular track?
- sheepcountme
- · Replies 6 ·
Annoying ellitpical orbit problem
- superaznnerd
- · Replies 2 ·
Diving car down steep, slippery hill (work, gravity, friction)
- Jim01
- · Replies 5 ·
How do I set up the equations for this?
- Ryuk1990
- · Replies 4 ·
Frequence of light of galaxy receding from earth
- matt72lsu
- · Replies 2 ·
Pressure vs Vlume graph questions
- joemama69
- · Replies 1 ·
Resultant of three harmonic motions with different amplitudes and phases
- mmmboh
- · Replies 3 ·
Viscous Drag and Terminal Velocity
- paradiselost
- · Replies 2 ·
Orbits of planets/Angular momentum
- Physics122
- · Replies 10 ·
Rotation and translation of a cylinder
- Hannisch
- · Replies 2 ·
Conversation of mechanical energy
- gujubomber
- · Replies 1 ·
Distance light travels between reflections in a fiber
- sdoyle1
- · Replies 1 ·
How Does a Finite Wire Segment Affect Magnetic Field Calculation?
- Jethom18
- · Replies 1 ·
Theoretical Rope and Pulley Question
- qszwdxefc
- · Replies 4 ·
How Do You Calculate Current in a Complex Resistor Network?
- krtica
- · Replies 15 ·
How to Find Reactions at Point A in a Structural System?
- Ryuk1990
- · Replies 3 ·
Why does coefficient of kinetic friction vary in pulley system lab?
- Exuro89
- · Replies 5 ·
Sliding block Kinetic Energy Problem
- lshine09
- · Replies 7 ·
Finding Equivalent Resistance in a Combination Circuit
- Gemy4
- · Replies 7 ·
Thermal conductivity of airplane
- joemama69
- · Replies 4 ·
Solving for Wave Speed: A Guitar String's Story
- The_Hunter
- · Replies 3 ·
Determining Amplitude of Standing Wave on a Guitar String
- ~angel~
- · Replies 5 ·
Some electromagnetism questions
- nunos
- · Replies 11 ·
Rotational Kinetic Energy of Moving Wheel
- easchwen
- · Replies 4 ·
How Is Net Work and Heat Calculated in a Thermodynamic Cycle?
- joemama69
- · Replies 4 ·
How Do You Analyze a PV Diagram for a Diatomic Ideal Gas Cycle?
- joemama69
- · Replies 5 ·
Block/Spring Problem (Kinetic Energy)
- lshine09
- · Replies 1 ·
Is displacement always equal to distance traveled?
- CaptFormal
- · Replies 1 ·
Negative acceleration and instantaneous velocity on an object.
- CaptFormal
- · Replies 2 ·
What is the Complex Exponential Form of a Trigonometric Function?
- mmmboh
- · Replies 6 ·
What does the slope of an acceleration vs. mass graph reveal?
- 1R1SFL0W3R
- · Replies 4 ·
Calculating the Required Force to Prevent Sliding on an Incline Plane
- stanbals
- · Replies 3 ·
Normal force of a ball at the top and bottom of a circular path
- oadeyemi
- · Replies 4 ·
A very Inquisitive question - Finding Force of Tension
- Weebay
- · Replies 4 ·
Finding potential differences when R1 = 4 × R2
- yamugushi
- · Replies 1 ·
Why Does qEt/m Represent Drift Speed in a Conductor?
- anonymousphys
- · Replies 2 ·
What kind of a vector force field is this?
- Keano16
- · Replies 4 ·
How Does Angular Velocity Change in Different Yo-Yo Maneuvers?
- Physics122
- · Replies 1 ·
What is the Net Force Acting on a Truck and Trailer System?
- VeryJerri
- · Replies 1 ·
Length Contraction spaceship Problem
- hbrinn
- · Replies 5 ·
Newtonian Mechanics (true or false)
- rechitzy
- · Replies 6 ·
Finding initial velocity from launch height, range and angle
- xwater
- · Replies 8 ·
Solve Ramp with Friction: Coefficient of Kinetic Friction
- rechitzy
- · Replies 5 ·
Range of a thermometer - and bulb size
- matthew77ask
- · Replies 7 ·
Logic gate circuits - What does two-level and multi-level mean?
- jayjay112
- · Replies 2 ·
Sliding mass on sliding incline
- zheng89120
- · Replies 1 ·
Range an Arrow travels shot upwards towards a projectile falling due to gravity
- fazer
- · Replies 1 ·
How Do Electric Circuits and Their Methods Work?
- jerrybg
- · Replies 3 ·
Child dragging box (friction, net force and work)
- Jim01
- · Replies 3 ·
Woman in Elevator Problem (Free Fall), Forces she experiences?
- Ballin27
- · Replies 1 ·
What Are the Best Resources for Understanding Quantum Physics?
- clm321
- · Replies 3 ·
Question concerning work and horizontal force.
- Jim01
- · Replies 2 ·
Determination of signs in basic capacitance problems
- Mr_J
- · Replies 1 ·
Mutual Inductance in a solenoid
- matt72lsu
- · Replies 1 ·
Determine inductance of a solenoid
- matt72lsu
- · Replies 8 ·
Driving Force of 1500 kg Car: 22600 N
- moshrom
- · Replies 1 ·
A simple example where oscillations with two or more frequencies are combined?
- Atlaπtis
- · Replies 1 ·
Statics - Balancing moment and resultant force
- lax1113
- · Replies 1 ·
Cord vibrating in fundamental mode with hanging mass
- TheNextOne21
- · Replies 1 ·
Reading oscilloscope diagram for voltage and frequency
- Atlaπtis
- · Replies 1 ·
Why is it easier to move a car by pulling on a rope attached to a pole?
- Tearsandrille
- · Replies 3 ·
Finding what a rotation matrix transformation does to a vector
- rrm74001
- · Replies 1 ·
How Do You Calculate Object-Image Separation for a Convex Mirror?
- olyviab
- · Replies 1 ·
What Unique Variables Can Affect the Resonant Frequency in a Physics Experiment?
- asu04
- · Replies 6 ·
What is the frequency of unknown tuning fork
- lauralovesyou
- · Replies 1 ·
Uniform Electric Field in Cavity of Solid Sphere
- mrlebowski
- · Replies 1 ·
Calculating Work and Energy in a Spring Loaded Cannon
- stripes
- · Replies 5 ·
Find the Magnitude of Emf Induced in a Circular Loop After 6.00s
- Charanjit
- · Replies 2 ·
Velocity of a moving conducting bar in a magnetic field
- Linus Pauling
- · Replies 1 ·
Circuits with series and parallel wiring
- r_swayze
- · Replies 1 ·
Why doesn't the E-field double between parallel conducting plates?
- wumple
- · Replies 4 ·
Cylindrical Capacitors Questions
- apphysicsgirl
- · Replies 1 ·
Two-block system with friction giving wrong coefficient
- Bensky
- · Replies 4 ·
Electric field inside a uniformly charged solid sphere .
- hangainlover
- · Replies 1 ·
Orbital period of Earth using Newton's law and gravitation
- Sci21
- · Replies 3 ·
Induced Current - is there one if inside constant B field?
- skibum143
- · Replies 10 ·
What is the tangential acceleration of a flywheel particle during deceleration?
- RaoulDuke
- · Replies 2 ·
What Speed Range Keeps a Car Safe on a 65m Banked Curve?
- demente182
- · Replies 6 ·
Finding the distance for one stone to pass the other
- lauren16
- · Replies 1 ·
Energy Equations: U, K, E for 0-4 cm Compressions
- MrGoodyear812
- · Replies 3 ·
Trying to find volume given Newtons/ archimedes principle
- bc1170
- · Replies 4 ·
Parallel conducting wires and zero magnetic field x value
- skibum143
- · Replies 16 ·
Finding electric field between parallel metal plates with charge Q
- skibum143
- · Replies 4 ·
Projectile Motion Kinematics Problem
- Turquoise
- · Replies 3 ·
Baseball thrown at 45° travels 296 ft - finding initial speed and flight time
- mimsteel
- · Replies 9 ·
Calculating Time for Mass to Reach 70 m/s
- bobey
- · Replies 1 ·
Number of revolutions a disk has made after a given time
- FGCUgrl11
- · Replies 1 ·
How do you find wavelength if your given only the speed?
- Brittykitty
- · Replies 1 ·
Calculating Acceleration Time for an Electron
- slpnsldr
- · Replies 13 ·
Intake Temperature for a 40.2% Efficient Carnot Engine
- shar_p
- · Replies 2 ·
Finding satellite altitude from orbital speed
- mat331760298
- · Replies 1 ·
Bicyclist's displacement, velocity, and acceleration over 30 seconds
- mimsteel
- · Replies 1 ·
Two-block system - what am I doing wrong?
- Bensky
- · Replies 15 ·
Momentum Conservation and Collisions Concept?
- x0ji11y
- · Replies 2 ·