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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Simple Harmonic Motion - Conflicting equations
- jumbogala
- · Replies 1 ·
Conversions of a thrown basebal
- gracemir
- · Replies 1 ·
Work-Kinetic Energy Theorem- Pendulum on a String
- hks118
- · Replies 1 ·
Finding the distance in an acceleration problem?
- SoConfused__
- · Replies 17 ·
Orbit radius of 2 collided satellites
- adiggy93
- · Replies 12 ·
Finding initial and final states after photon absorption in hydrogen atom
- Shackleford
- · Replies 4 ·
Finding distance of resistance in inclined plane IMA
- nicoled
- · Replies 1 ·
Focus on Concepts, Question 10 - Three forces
- Physicsmoron
- · Replies 1 ·
Equilibrium temperature and Dulong-Petit law
- ChrisBaker8
- · Replies 2 ·
What is the force exerted by the locomotive on the first car?
- Ballox
- · Replies 3 ·
Solving Newtons Law Problem for Hot Air Balloon Mass of Ballast
- Ballox
- · Replies 5 ·
Is There an Upward Force Acting on a Rock When It's Dropped from a Cliff?
- cheerspens
- · Replies 1 ·
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 ·