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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How long would it take for a can of beer to fall over due to quantum tunneling?
- lackrange
- · Replies 1 ·
Gamma radiation decay question.
- rollcast
- · Replies 1 ·
How long is discus in the air and the horizontal distance traveled
- dani123
- · Replies 4 ·
Calculating Speed of a Snowball Thrown Horizontally
- dani123
- · Replies 2 ·
Fluid mechanics,interesting problem
- pcm
- · Replies 3 ·
Calculating Potential Difference for a Bird on a Power Line
- Wnt2bsleepin
- · Replies 2 ·
Induced current due to rotating coil
- caljuice
- · Replies 1 ·
Finding Angular Velocity of Man with Gun in Physics Textbook
- HSSN19
- · Replies 9 ·
Finding Object Distance and Image Distance
- McAfee
- · Replies 1 ·
Time period of oscillation and displacement from O
- magiclink
- · Replies 4 ·
Finding Potential Energy of a Swing When the Ropes Are Horizontal?
- falconpunch
- · Replies 1 ·
Weight/Satellite Above Earth's Surface
- sweetpete28
- · Replies 2 ·
Topic for Introductory physics project/case study
- Headacheguy
- · Replies 1 ·
Deriving frequency equation from centripetal force data
- n3w ton
- · Replies 4 ·
Why do two textbooks give different critical speed formulas?
- jayadds
- · Replies 1 ·
The slope of a kinetic energy vs. potential energy graph
- niteeks
- · Replies 3 ·
Probably a very novice question
- Katchit
- · Replies 7 ·
Calculating Charge Density and Total Charge Using Gauss's Law
- spaghetti3451
- · Replies 1 ·
Eigenvalue Question (p2.14 in Quantum Chemistry and Spectroscopy)
- anduril66
- · Replies 2 ·
Maths - a proof question on the nature of roots of quadratic equations
- Eutrophicati
- · Replies 1 ·
Diffraction Grating and Maximums
- majormaaz
- · Replies 2 ·
What Is the Average Acceleration of a Baseball Hit by a Bat?
- Prototype44
- · Replies 1 ·
Why does a pendulum in a car swing outwards when the car drives in a circle?
- zaddyzad
- · Replies 3 ·
Acceleration in a Weight Machine
- eagles12
- · Replies 6 ·
Are the following equations inversely or directly proportional to frequency?
- n3w ton
- · Replies 2 ·
How to Solve Angular Kinetics Problem with Inclined Plane and Hoop Release
- Mdhiggenz
- · Replies 1 ·
Rms Electric Field of a light bulb
- jmm5872
- · Replies 1 ·
Confused about how inductors work and produce a back EMF?
- lillybeans
- · Replies 4 ·
How to know when to break up equilibrium problems into components, vs torque
- Mdhiggenz
- · Replies 1 ·
Relating charge to potential difference
- Daishain
- · Replies 2 ·
Relating Sink Time to Hole Diametre- Water Bowls
- LemoneyF
- · Replies 2 ·
Air passes over an electrical heater at a steady rate of 2500cm^3 per second.
- Student-
- · Replies 4 ·
Understanding Beats: The Interplay of Air Pressure in Sound Waves
- mrhingle
- · Replies 2 ·
Equation for Final velocity: Projectile Fired from Earth
- sweetpete28
- · Replies 1 ·
What Equation Calculates the Deceleration Time for an F1 Car?
- porsche930
- · Replies 3 ·
Newton's Laws/ Tension Forces Problem
- BEANTOWN
- · Replies 1 ·
Acceleration in an Atwood's Machine
- eagles12
- · Replies 1 ·
Changing Velocities: Acceleration or Deceleration?
- Prototype44
- · Replies 2 ·
Force on an iron ball due to a dipole magnet
- cereal9
- · Replies 1 ·
Force on a charge on magnetic field
- Genericcoder
- · Replies 6 ·
How much thermal energy it takes to raise the temperature
- forumasker
- · Replies 3 ·
Understanding Electron Capture and the Emission of X-rays
- MacLaddy
- · Replies 6 ·
Height of pier above water- projectile motion
- dani123
- · Replies 1 ·
Time to take for water to cool down.
- dzkl
- · Replies 4 ·
What stress needs to be exerted to turn a quart of water into a pint?
- jami8337
- · Replies 2 ·
Proper time for clock with constant acceleration arriving simultaneously
- Point Conception
- · Replies 5 ·
Conservation of Momentum - Elastic Collision
- rocapp
- · Replies 2 ·
Velocity of a ladybug relative to the ground
- TheronSimon
- · Replies 4 ·
Calculating 'g' Variation on Earth's Surface
- Sekonda
- · Replies 17 ·
Inertia of a solid vertical disk about it's diameter
- DaveyThompson
- · Replies 1 ·
Spherical capacitor with epoxy dielectric and battery voltage
- Alouette
- · Replies 5 ·
(Air Resistance) Distance with respect to time
- BitterX
- · Replies 2 ·
How Fast Must Air Be Blown Downward to Lift a 1000kg Flying Car?
- diffrentiable
- · Replies 13 ·
Calculating Coefficient of Friction for a Truck on an Incline
- menco
- · Replies 4 ·
Charge and mass of a singly ionized benzene molecule
- Alouette
- · Replies 6 ·
Calculating Projectile Motion from a Cliff: Using Coordinates and Equations
- mahrouqi
- · Replies 2 ·
Kicking a ball ( optimal angle)
- mahrouqi
- · Replies 1 ·
Finding total angular momentum qnumber for 3d4d
- linda300
- · Replies 2 ·
What is the electric field at the point x = 3.5 m, y = 2.0 m?
- Bri15
- · Replies 1 ·
Parametric equations motion problem
- cjh12398
- · Replies 8 ·
Solving a problem using energy and conservative forces concepts
- Hernaner28
- · Replies 9 ·
Calculating Forces and Acceleration in a Two-Block System
- Questions999
- · Replies 5 ·
Conservation of Energy of a rolling sphere
- mathmannn
- · Replies 2 ·
Line integral to calculate work
- Hernaner28
- · Replies 6 ·
Curve Fitting Data: Motion Analysis, Bouncing Ball, Excel Graph
- jey1234
- · Replies 1 ·
Induced Voltage created on a loop entering a magnetic field
- allison20
- · Replies 2 ·
Statics: a hinge held up by a string with a mass
- bfusco
- · Replies 4 ·
Solving a Problem Using Conservation of Energy
- Nivoh
- · Replies 4 ·
What is the Angular Momentum of Jogger 1?
- eagles12
- · Replies 5 ·
Acceleration Due to Gravity on earth
- eagles12
- · Replies 4 ·
Electric Field Strength and Potential
- elemis
- · Replies 1 ·
Pulleys: Why would my calculated work output be higher than my work input?
- veganazi
- · Replies 1 ·
Battery with internal resistance: terminal voltage and current vs load
- jannos
- · Replies 11 ·
Resistance of CuSO4 solution with electrode distance and depth
- shinichii
- · Replies 6 ·
Find a waves length given the electric field?
- Eats Dirt
- · Replies 1 ·
Conservation of Angular Momentum - Two ants on a massless rod
- HSSN19
- · Replies 4 ·
How do I find intial acceleration?
- vpa021
- · Replies 12 ·
Calculating the Minimum Ramp Length for a Fairground Ride
- aguycalledwil
- · Replies 2 ·
How to Insert Wavenumber Symbol and Draw Triple Bonds in Word?
- Moogie
- · Replies 3 ·
Intensity of Light With a Given Power of Through a Polarizer
- cvangheem
- · Replies 1 ·
Finding unknown mass in 2D inelastic collision using momentum conservation
- Ranjan1995
- · Replies 4 ·
How Is the Total Energy Inside a Cylindrical Wire Calculated?
- Jesssa
- · Replies 2 ·
Why Does a Pendulum's Period Change with Angle?
- starfish9000
- · Replies 1 ·
Electromagnetism - Cross Product of length and Magnetic Field
- mvanella
- · Replies 5 ·
Why can't a satellite in a non-equatorial orbit be geostationary?
- ketz
- · Replies 7 ·
Transport theorem, final integral
- Leb
- · Replies 2 ·
Monochromatic Light and a 30-60-90 Prism Problem
- hawaldko
- · Replies 3 ·
Relativistic momentum and gamma factor - differential equation
- kapitan90
- · Replies 2 ·
Couloumb's Law 3 charges on a line
- PatrickGeddes
- · Replies 1 ·
The Kepler Orbits (algebra manipulation)
- aaj92
- · Replies 1 ·
Suspended Charged Object in Uniform Electric Field
- PatrickGeddes
- · Replies 2 ·
Continous charge or mass distributions
- aaaa202
- · Replies 2 ·
Current and Voltage in a transformer
- btpolk
- · Replies 9 ·
Solving Manometer Height: Oil & Water
- samantha.
- · Replies 4 ·
Charged particle within an electric field
- howsockgothap
- · Replies 1 ·
Ampere's Law for current carrying wire
- btpolk
- · Replies 2 ·
Physics behind a fan based flying car concept
- PMsacr0sanct
- · Replies 1 ·
Simple Pendulum: Amplitude, velocity, and angular position.
- howsockgothap
- · Replies 4 ·
Net force on three collinear charges using Coulomb's law
- PatrickGeddes
- · Replies 3 ·