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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Two torqued and hanging constrained rods
- pc100
- · Replies 2 ·
Centripetal force of a rotating ride thing
- Magma828
- · Replies 3 ·
Momentum of a 50 kg body after 5 seconds of free fall
- kriegera
- · Replies 6 ·
A boat's acceleration is proportional to its velocity
- Skomatth
- · Replies 3 ·
Finding Displacement: Solve for Particle's Position
- AmandaJoy
- · Replies 1 ·
Alternatives to Batteries for Electromagnets
- Alieneater
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Equipotential surfaces electric field problem
- wildredhead
- · Replies 6 ·
What Force Pulls m1 to the Right in a Rope-Connected System?
- floater
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Why can't two streamlines intersect in fluid flow?
- farleyknight
- · Replies 2 ·
Velocity and space and force over distance
- copitlory8
- · Replies 1 ·
What are the equations for trajectory in an E-field?
- jasper10
- · Replies 4 ·
Calculating water pressure from bernouliis equation
- victoriafello
- · Replies 2 ·
Circular Motion (standing on a carousel)
- dragonladies1
- · Replies 5 ·
How Does String Tension Vary with Torque in a Triangular Rod System?
- pc100
- · Replies 10 ·
How Is the Average Force on Water by a Turbine Blade Calculated?
- copitlory8
- · Replies 1 ·
Magnitude of the force on an electron (Coulomb's Law?)
- Kas0988
- · Replies 1 ·
Finding an unknown charge in a system of discrete point charges.
- Zift
- · Replies 1 ·
What Are the Correct Tension Forces in Cables Lifting a 8Mg Tractor?
- hadroneater
- · Replies 1 ·
Various expressions for the kinetic energy
- hangainlover
- · Replies 3 ·
How long does it take for the pendulum to swing to the opposite side?
- drifter8027
- · Replies 2 ·
Effect of parachute area on drag and why wind makes biking difficult
- ozzfest
- · Replies 4 ·
Calculating Specific Heat of Alcohol Using a Copper Calorimeter
- kriegera
- · Replies 12 ·
Floating in Sea Water vs. Floating in Fresh Water
- kriegera
- · Replies 20 ·
Pressure in u-tube of mercury with added water
- pchalla90
- · Replies 1 ·
Help with Einstein's Theory question
- alminkowski
- · Replies 5 ·
Universal gravitation to find the mass of a star
- BoldKnight399
- · Replies 5 ·
Speed of Electrons: 1.13*10^6 m/s
- huntingrdr
- · Replies 3 ·
Hydraulic Lever: Effect of Force on Pressure
- jarman007
- · Replies 4 ·
Energy, Grabity and Calculating Net Force of a Diver
- copitlory8
- · Replies 1 ·
Adding Vectors in Physics 1 to get the Net Displacement
- Wm_Davies
- · Replies 1 ·
Physics Vector Question - Finding direction
- bluefire90
- · Replies 2 ·
Specific heat of metal in calorimeter with 50g sample at 100°C
- kriegera
- · Replies 3 ·
COnversative Forces and Change in Kinetic Energy
- copitlory8
- · Replies 14 ·
Simple spacetime interval question
- Eric_meyers
- · Replies 4 ·
Piston friction dissipative work and steam turbine enthalpy change
- mmmboh
- · Replies 3 ·
Oscillations and Elastic Potential Energy
- pewpew23
- · Replies 3 ·
Solving for Electric Force: A 15cm Ring, 20uC Charge
- huntingrdr
- · Replies 2 ·
How Do You Calculate Acceleration and Distance in One Dimensional Motion?
- Teenytiny1991
- · Replies 3 ·
Thermodynamics Entropy change of the universe
- krhisjun
- · Replies 6 ·
Calculating Distance and Time given mass,velocity,and Force.
- copitlory8
- · Replies 4 ·
Finding orbital radius of Mars given period and masses
- thussain93
- · Replies 4 ·
How Do You Find Instantaneous Velocity at 1s?
- hackett5
- · Replies 2 ·
What is the magnitude of acceleration for a minute hand in circular motion?
- dragonladies1
- · Replies 10 ·
How Does Friction Affect Motion on an Inclined Plane?
- mmalone11
- · Replies 1 ·
Velocity needed to maintain orbit
- BoldKnight399
- · Replies 2 ·
Work Required to Move 890 N Crate Along Floor Against 180 N Force
- tigerwoods99
- · Replies 10 ·
Initial acceleration of an object dropped above the earth
- BoldKnight399
- · Replies 12 ·
Point charges and magnitude of the electric field at the center of a triangle
- matt72lsu
- · Replies 6 ·
Electric charges/electric fields
- matt72lsu
- · Replies 2 ·
Change in Potential Energy = mgh = (9.0kg)(9.8m/s^2)(1.3m) = 116.4 Joules
- tigerwoods99
- · Replies 5 ·
Finding an electric field magnitude with tension and weight of hanging ball
- skibum143
- · Replies 9 ·
Applied force and the force between boxes?
- Briann
- · Replies 2 ·
What is Pluto's speed at the most distant point in its orbit?
- JJBladester
- · Replies 5 ·
Particle Traveling in a Uniform Magnetic Field (SR?)
- RoyalCat
- · Replies 1 ·
Determining Parallax Accuracy for Stellar Distances
- ~Sam~
- · Replies 9 ·
Calculate the acceleration and the tension in the rope
- Leo194
- · Replies 5 ·
Proton in a plate capacitor: how far does it go?
- pickleparty
- · Replies 4 ·
The potential difference in a capacitor with dielectric
- Ripperbat
- · Replies 2 ·
Circular Motion: Max Revolutions per Second w/ 9g Accel.
- ben2010
- · Replies 1 ·
Finding potential of two points in a constant electric field
- skibum143
- · Replies 6 ·
How Does a Charge Affect a Uniform Electric Field?
- r_swayze
- · Replies 1 ·
Can Boyle's Law Determine How Far a Submerged Bottle Must Be Sunk?
- kriegera
- · Replies 5 ·
Calculate the Depth of a Well by Solving Free Fall Problems in 4 seconds
- tintin
- · Replies 2 ·
Charge to mass ratio of a pion particle compared to electron
- quickslant
- · Replies 2 ·
Circular Motion and Universal Gravitation
- wvlaxxer81
- · Replies 1 ·
Forces question, a pedagogical machine
- holezch
- · Replies 24 ·
What Are Some Challenging Physics Mechanics Questions?
- key
- · Replies 3 ·
Kinematics Problem involving variable acceleration
- zewei1988
- · Replies 3 ·
Isobaric Expansion for Ideal Gas
- Windseaker
- · Replies 5 ·
Potential Energy of Electric Charges
- adaschau2
- · Replies 2 ·
What is the Electric Field Due to Charge q3 Between q1 and q2?
- DeltaIceman
- · Replies 4 ·
How to approach conceptual physics problems
- eqreal
- · Replies 1 ·
Two blocks on frictionless table, friction between blocks (Blocks side by side)
- mcleanrs
- · Replies 2 ·
Block moving up 25° incline with horizontal force and friction
- mcleanrs
- · Replies 10 ·
What are the new speed and direction of the plane relative to the grou
- philok
- · Replies 3 ·
Projectile Motion airplane final speed
- black_hole
- · Replies 1 ·
Atwood machine problem - symbolically solving for mass?
- therest
- · Replies 7 ·
The electric force and the gravitational force.
- TKstreaker13
- · Replies 3 ·
Change in momentum and change in Kinetic energy
- eureka_beyond
- · Replies 5 ·
Relative motion (2 arrow shot up find meeting distance)
- GregR
- · Replies 6 ·
Calculating Momentum Change for Rocket Course Alteration
- daxter17
- · Replies 3 ·
Coin-vertical displacement question and other
- Elo21
- · Replies 5 ·
Lamppost vibration damped oscillation time constant
- LBRRIT2390
- · Replies 3 ·
What is the Net Charge on a Suspended Plastic Ball in an Electric Field?
- cy19861126
- · Replies 11 ·
How many electrons would it take for a balloon to stick to the ceiling?
- youngkor
- · Replies 5 ·
Deriving t = Δx / (vi × cos θ) for projectile motion
- d3111
- · Replies 1 ·
How Do You Calculate Average Velocity for an Insect Crawling Across a Pool?
- mistalopez
- · Replies 7 ·
Electric field near metal plate
- Keano16
- · Replies 1 ·
How Does Radial Temperature Vary in a Thermally Conductive Hollow Cylinder?
- Domisterwoozy
- · Replies 1 ·
The electric potential of 2 hollow concentric spherical shells
- Figigaly
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Electric field strength of a wire comparison
- pickleparty
- · Replies 2 ·
Why does an object have constant speed with Centripetal Force
- Masafi
- · Replies 5 ·
Electric Motor Power Output and Efficiency
- Revan718
- · Replies 2 ·
Finding the spring constant of a accident safety system
- Revan718
- · Replies 3 ·
Oscillation, Frequency, Amplitude etc Hmwk Problem
- LBRRIT2390
- · Replies 4 ·
How Do You Isolate v in the Equation 1005 = 1000 (1500-5/1500-v)?
- uazaga
- · Replies 1 ·
Finding a vector perpendicular to C and D without component form
- xcgirl
- · Replies 4 ·
Wedge interference - solving for 'separation of fringes' without lambda
- iffybom
- · Replies 1 ·
Efficient and Accurate Power Sources for Electromagnets: What Are My Options?
- Alieneater
- · Replies 2 ·
Finding the Angle of Tipping for a Semi-Cylinder on a Ramp
- PennyGirl
- · Replies 6 ·