Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Rotary (Gears) question - angular acc/velocity involved
- skae
- · Replies 1 ·
How Is the Angle Determined for the Opposite String in a Suspended Rod Scenario?
- physicshawk
- · Replies 2 ·
Conservation of Energy of an Interrupted Pendulum
- annaphysics
- · Replies 1 ·
Understanding Rydberg's Constant: What Do R(sub)H and R(sub)infinity Represent?
- Astronomer1
- · Replies 1 ·
Average Power Output for 260000 kg Jet at 9200m Altitude
- spockjones20
- · Replies 3 ·
Projectile Motion Diver Jump Question
- lvn
- · Replies 1 ·
Error Propogation: Calculating Average Acceleration w/ Uncertainty
- 012anonymousx
- · Replies 2 ·
General: Calculating the Moment of Inertia
- ckelly94
- · Replies 3 ·
Bike Approaching Stopped Truck at Traffic Lights
- AltruistKnight
- · Replies 5 ·
Rank the material according to their indices of refraction
- MrMoose
- · Replies 3 ·
Probability that the electron will pass through the barrier?
- Gee Wiz
- · Replies 9 ·
Force Applied at an Angle to an Object on Frictionless Surface
- jpsmith394
- · Replies 2 ·
Find frequency given wavelength and distance travelled
- MrMoose
- · Replies 1 ·
How is the angular momentum related to x and y coordinates in SHM?
- thatguy14
- · Replies 3 ·
Work done by air in isothermal expansion and isobaric cooling
- jeff.berhow
- · Replies 6 ·
Find the Angle Between (A+B) and (A-B) is (A+B)=73(A-B)
- AltruistKnight
- · Replies 6 ·
Why does interference text express distances as 1/2λ?
- Hapablap
- · Replies 2 ·
Time above ground question involving ratio
- Bikengine
- · Replies 5 ·
Rock off cliff - calculate height by using speed of sound
- Bikengine
- · Replies 2 ·
Applied force needed for pulley system with 4.5 kg and 3.0 kg masses
- Coco12
- · Replies 10 ·
What Is the Current Flow and Resistance in Series-Connected Bulbs?
- androbada525
- · Replies 18 ·
How Far Does a Car Slide on Wet Concrete Before Stopping?
- astru025
- · Replies 2 ·
What was the time in the air for Alan Shepherd's golf ball on the Moon?
- astru025
- · Replies 3 ·
Cockroach on spinning turntable with drift velocity
- pringle
- · Replies 6 ·
Physics centripetal acceleration/ mass
- astru025
- · Replies 2 ·
How Fast Does a Coin Travel Down a 30-Degree Ramp After 1 Meter?
- eddybob123
- · Replies 6 ·
Electric field a distance z above flat circular disk.
- -Dragoon-
- · Replies 3 ·
Weight at North Pole and on the Equator
- MathewsMD
- · Replies 8 ·
Kirchhoff's loop and junction equations giving all zero currents
- ma18
- · Replies 1 ·
Finding velocity and position from an acceleration vs time graph
- Kot
- · Replies 24 ·
Acceleration of 3 Blocks w/ Pulley
- Coop
- · Replies 1 ·
How to Calculate Forces and Acceleration of Boxes on a Frictionless Shelf?
- makerfeldt
- · Replies 3 ·
Work on charge from outside to inside of sphere
- origamipro
- · Replies 3 ·
Frequency of a simple harmonic oscillator
- AdrianHudson
- · Replies 2 ·
Circular motion: net work after one period
- nx01
- · Replies 2 ·
Forces and vectors direction problem
- nerdalert21
- · Replies 12 ·
Energy and charge on a 3000 μF capacitor at 87 V
- kopinator
- · Replies 1 ·
Car braking problem: why is average velocity not the instantaneous velocity?
- Coop
- · Replies 7 ·
Subway train displacement with constant acceleration
- mithilsheth
- · Replies 5 ·
Why is spring force maximum at amplitude in SHM?
- Buddhapus17
- · Replies 2 ·
What is the tension in rope 2 when a dog pulls two sleds on snow?
- oneamp
- · Replies 1 ·
Friction problem - Relation between coefficient of friction
- Saitama
- · Replies 8 ·
Finding initial vertical speed given maximum height of 7.2 m
- mithilsheth
- · Replies 14 ·
Two blocks on top of each other
- fishiiie
- · Replies 10 ·
Range Equation Limitation question
- astropi
- · Replies 8 ·
Spheres hanging by strings - Finding impulse of tension
- Saitama
- · Replies 50 ·
How Does Gas Expansion Relate to Changes in Molar Internal Energy and Enthalpy?
- CAF123
- · Replies 3 ·
Non-parallel Relativistic Velocity Addition
- stefan10
- · Replies 2 ·
How Do You Write Position Vectors in Unit Vector Notation?
- Kieran Hughes
- · Replies 1 ·
Work done by a force slowing an object
- Mikry
- · Replies 5 ·
Physics Lab: Calculating Tension with T=m(g-a)
- hailbo
- · Replies 1 ·
Calculating Electric Field and Voltage Between Parallel Conducting Plates
- tuggler
- · Replies 4 ·
What Quantum Conditions Govern a Particle in a Step Potential?
- derravaragh
- · Replies 1 ·
Pulley system on an inclined plane with friction.
- cmcraes
- · Replies 1 ·
Understanding Beam Support Reactions: Questioning the Sign Convention
- 1question
- · Replies 2 ·
How to find load at a given point on a triangular distributed load diagram
- 1question
- · Replies 4 ·
Solving Static Equilibrium: Ʃτ = 0, ƩF = 0
- capn awesome
- · Replies 1 ·
What is the maximum speed you could have and still avoid hitting the deer?
- xfaceless
- · Replies 5 ·
Sprinter resultant force question
- Molly1235
- · Replies 23 ·
Finding Acceleration from a v^2 vs. t Graph
- ethinh
- · Replies 3 ·
Projectile Angle Calculation: Finding Optimal Launch Angles for Accurate Hits
- ericka141
- · Replies 3 ·
Calculating Acceleration with Known Velocity and Distance - Homework Problem
- Speedking96
- · Replies 7 ·
Torque: Yoyo with Two Strings - Direction and Maximum Tension
- capn awesome
- · Replies 1 ·
How Is the Smallest Force to Move a Box Up a Ramp Calculated?
- makerfeldt
- · Replies 2 ·
Why does a moment have more than one part?
- 1question
- · Replies 4 ·
Centripetal or centrifugal? The Physics of Water Escape in a Washing Machine
- laurenbaboran
- · Replies 4 ·
Y-delta/delta-Y transformation problem
- yugeci
- · Replies 3 ·
Can a circular orbit become eccentric in 55 minutes?
- ExoP
- · Replies 3 ·
Simple Harmonic Oscillator Equation Solutions
- logan3
- · Replies 3 ·
Magnitude and direction of an electric field outside of a plate?
- Violagirl
- · Replies 14 ·
Calculating Electric Fields on the Surface of a Charged Cube
- Violagirl
- · Replies 4 ·
Wave Pulse - Finding Average Transverse Acceleration of Segment
- ArtVandelay
- · Replies 3 ·
Work, Force, and Brakes: Solving the Physics Problem
- laurenbaboran
- · Replies 4 ·
Snell's law and optical filters.
- Greger
- · Replies 3 ·
Direction of Acceleration Vector
- laurenbaboran
- · Replies 3 ·
What is the acceleration of the object?
- laurenbaboran
- · Replies 3 ·
Rolling a ball down an inclined slope. Something's wrong.
- Enlightnd
- · Replies 18 ·
Period of an Oscillating Particle
- Sacrilicious
- · Replies 3 ·
Proving Parity in Normalized Solutions of the Schrodinger Equation
- ProfessorChaos
- · Replies 1 ·
What is the period of a pendulum bouncing off an inclined wall?
- Demakras
- · Replies 2 ·
Frequencies of Small Oscillations for a Hoop Rolling in a Pipe
- CAF123
- · Replies 7 ·
Finding currents and voltages in a ladder network with Kirchhoff's laws
- vaio911
- · Replies 3 ·
If problem states acceleration is constant what is the acceleration?
- survivorboiii
- · Replies 5 ·
Pretty easy, just want someone to verify I have the right answer
- laurenbaboran
- · Replies 7 ·
How Does a Block of Ice Move When Sliding Off a Sloped Roof?
- brundlfly
- · Replies 5 ·
Ratio of velocities between proton and electron?
- Violagirl
- · Replies 1 ·
Mass slides on loop-the-loop track, find original height.
- oddjobmj
- · Replies 2 ·
Can Secret Agent Jane Pond Retrieve the Plans at the Bottom of the Well?
- Sastronaut
- · Replies 4 ·
Find the velocity of the shadow variation
- adriaat
- · Replies 5 ·
How Do You Calculate the Effective Speed of a Tailwind for a Westward Cyclist?
- Coco12
- · Replies 3 ·
Can Zero Potential be Defined at Any Point in Electric Potential?
- fredrogers3
- · Replies 1 ·
Finding coefficient of kinetic friction on 30° incline with applied force
- Coco12
- · Replies 5 ·
Circuit with 2 components. Series or Parallel?
- Dalkiel
- · Replies 2 ·
Electric charge, simple problem for most of you.
- Fishingaxe
- · Replies 4 ·
Different Forms of Newton's 2nd Law
- A. Aspart
- · Replies 2 ·
Light travelling through several polarizers
- Jufro
- · Replies 4 ·
Physics linear momentum/ average force
- astru025
- · Replies 2 ·
One-dimensional energy (potential/kinetic) problem
- Ascendant78
- · Replies 4 ·
Seawater power plant efficiency
- raymanmusic
- · Replies 3 ·
Calculating Momentum and Speed in a Father-Son Push Scenario
- astru025
- · Replies 2 ·