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 Do You Calculate the Angle for Skiing Down an Incline?
- elizabethR
- · Replies 5 ·
Do Sinusoidal Equations Represent Different Wave Types?
- Amith2006
- · Replies 1 ·
Power radiated by a speaker with 20 cm circular opening
- Amith2006
- · Replies 1 ·
Isentropic steam expansion to 550 kPa from 2000 kPa and 250°C
- rmenon
- · Replies 4 ·
Calculating Planck Constant and Work Function in Photoelectric Experiment
- georgeh
- · Replies 2 ·
Calculate the heat during the canon ball rise
- epsbanga12
- · Replies 6 ·
How do you calculate electrical energy?
- ohlhauc1
- · Replies 3 ·
Rod moving through non-uniform magnetic field from current-carrying wire
- nahya
- · Replies 6 ·
Do linear and angular momentums overlap?
- boris16
- · Replies 2 ·
Calculate Current in B-Field Loop @t=8s
- choey
- · Replies 2 ·
Equipotential surface
- endeavor
- · Replies 2 ·
Increase in frequency of tuning forks
- Amith2006
- · Replies 2 ·
How far does a charged particle travel before stopping near a fixed charge?
- flower76
- · Replies 23 ·
How Do You Calculate the Point-Force Location for Unevenly Distributed Loads?
- TSN79
- · Replies 3 ·
What Defines Coherent Sources?
- Amith2006
- · Replies 2 ·
Understanding Standing Waves: Clarity on Conditions
- Amith2006
- · Replies 4 ·
Calculate the Change in Velocity of a Van
- michael_google
- · Replies 3 ·
Eccentricity of elliptical path of earth
- Amith2006
- · Replies 4 ·
Calculate Speed of Recoiling Hydrogen Atom After Transition to Ground State
- the armed pacifist
- · Replies 3 ·
Resistance in a series-parallel combination
- Icheb
- · Replies 3 ·
Find the horizontal distance a ball will travel
- puddinandpie
- · Replies 3 ·
Field resulting from line charge
- DFWDraco76
- · Replies 1 ·
Equation of a wave reflected from a rigid boundary
- Amith2006
- · Replies 1 ·
Calculating the Radius of a Charged Ion's Path in a Magnetic Field
- Trista
- · Replies 6 ·
How Much Energy to Position Four Charges at Square Corners?
- flower76
- · Replies 3 ·
How Does Ion Momentum Relate to Magnetic Fields and Circular Motion?
- Drevin
- · Replies 9 ·
Thermal Energy and Heat Transfer
- richievuong
- · Replies 2 ·
Finding member forces when a reaction equals a member force in a truss
- TSN79
- · Replies 2 ·
Mechanics/Kinetics of Particles
- scluggy
- · Replies 2 ·
Car braking distance and stopping time at traffic light
- elizabethR
- · Replies 1 ·
Uniform cicrcular motion problem
- mikejones2000
- · Replies 3 ·
Suspended bag, spring compression, and rotating rod with animals
- cukitas2001
- · Replies 16 ·
Particle motion described by a time dependent function x(t)
- elizabethR
- · Replies 1 ·
Kinetic explanation of evaporation of boiling/Melting.
- al_201314
- · Replies 2 ·
Constant acceleration and brakes
- elizabethR
- · Replies 1 ·
Solving Probematic Statics: Determining Force in CD
- TSN79
- · Replies 4 ·
Motion in one - dimension question
- rcwha
- · Replies 1 ·
Frequency of sound wave in air
- Amith2006
- · Replies 1 ·
Why does water stay in a cup during an inverted airplane roll?
- Ukitake Jyuushirou
- · Replies 4 ·
Heat loss per unit area per hour
- Amith2006
- · Replies 1 ·
How High Does a Balloon Rise With 97000 J Work Against Gravity and Wind?
- Atomos
- · Replies 4 ·
Help with 8 work, energy, and pressure problems
- lil_agelu4life
- · Replies 2 ·
Solving Part b) of an Amperian Loop Problem
- jmcgraw
- · Replies 8 ·
Optical field question (very easy)
- Hypnotoad
- · Replies 1 ·
Ferry velocity from passenger motion and vector addition
- coolkid
- · Replies 1 ·
Sliding Block Problem: Finding Distance Traveled
- ksle82
- · Replies 5 ·
What Causes the String to Break in Different Physics Demonstrations?
- danielI
- · Replies 5 ·
Why Does a Hollow Sphere Cool Faster Than a Solid Sphere?
- Amith2006
- · Replies 1 ·
Finding angular velocity from rolling marble between photogates
- In_Development
- · Replies 7 ·
Finding contact forces between two pipes and a roller
- TSN79
- · Replies 10 ·
(Mechanics) A Plank in a Circular Trough
- Saketh
- · Replies 8 ·
Question: Solving for the Coefficient of Friction on an Inclined Plane
- Semaphia
- · Replies 2 ·
How do I calculate the mass and orbital distance of a planetary body?
- revolv
- · Replies 4 ·
How to Calculate Velocity and Time of a Rock Tossed Into a Hole?
- punkytrixter
- · Replies 3 ·
How Far Will Dave Fall Before the Bungee Cord Stops Him?
- Delzac
- · Replies 4 ·
Work done by the gas during the -
- satishinamdar
- · Replies 7 ·
Why Does Length Contraction Affect Only Dimensions Parallel to Motion?
- georgeh
- · Replies 3 ·
Radioactive isotope spilled in lab, how long to wait before entering?
- petuniac
- · Replies 6 ·
Construct a Device to Transport a Ping Pong Ball to a Bucket
- badgerfan21
- · Replies 3 ·
Determining frequency of sound using a calibrated cathode ray oscilloscope
- RigidBody
- · Replies 3 ·
Potential energy of a helium atom
- Taryn
- · Replies 8 ·
Calculating lens power and accommodation of the eye in diopters
- nophun6
- · Replies 1 ·
BIENT TEMPERATURE AND RADIATION EQUILIBRIUM BETWEEN TWO BODIES IN A VACUUM
- Amith2006
- · Replies 2 ·
Calculating Energy Release from Fission of 0.001kg Uranium 235
- dirac1
- · Replies 3 ·
Deriving the hydrostatic equilibrium equation.
- Brewer
- · Replies 5 ·
Refractive index to measure temperature
- pavadrin
- · Replies 2 ·
Is Newton's Law of Cooling Applicable to Forced Convection Losses?
- Amith2006
- · Replies 1 ·
Finding rotation period from weight differences at equator and pole
- Mirielle
- · Replies 2 ·
Find Mass and Velocity of Proton with 500V Acceleration
- jesuslovesu
- · Replies 1 ·
Black Body Radiation: Why Does the Black Spot Appear Brighter?
- Amith2006
- · Replies 1 ·
Photoelectric Effect - Intensity in Phototube
- BobbyBobbyBob
- · Replies 5 ·
Mayers Relation of specific heat
- Amith2006
- · Replies 1 ·
Understanding AC Outlets: How Safe are They to Touch?
- amcavoy
- · Replies 3 ·
P-V Diagram Question - Can Q1<Q2<Q3?
- Amith2006
- · Replies 2 ·
How Far Apart Are Two 1kg Masses That Attract with a Force of 1kg.wt?
- Amith2006
- · Replies 2 ·
Proving Momentum Conservation: A Physics Homework Problem
- parallax1234
- · Replies 4 ·
Which statement about laser light is incorrect
- Delzac
- · Replies 2 ·
Concave/Convex-lens and mirrors
- physics_06er
- · Replies 2 ·
Solving Double Slit Question with 16.81x10^-19J Energy
- physics_06er
- · Replies 9 ·
Work done by gravity to fill truncated cone.
- Dr.Brain
- · Replies 9 ·
How Is PT Related to PA, PB, and PC in a Rigid Gas Mixture?
- ksle82
- · Replies 5 ·
Electric field of sphere with spherical cavity cut out
- Swagger
- · Replies 5 ·
Prove Uniform Spherical Shell Mass Gravitational Field Intensity
- vaishakh
- · Replies 3 ·
Conceptual vector question from Halliday and Resnick
- loom91
- · Replies 30 ·
Solving Kirchhoff's Rules: Electric Circuits and Algebra Practice
- teken894
- · Replies 1 ·
Calculating Current and Charge in a Capacitor Circuit
- willydavidjr
- · Replies 9 ·
Ideal gas behaviour at high pressures
- Amith2006
- · Replies 3 ·
Moment of inertia of solid sphere
- arunbg
- · Replies 10 ·
Adiabatic Processes and Ideal Gases
- bartieshaw
- · Replies 19 ·
Radius of Curvature of a 10cm Concave Mirror
- tennis freak
- · Replies 2 ·
Moment of intertia for rod with weight on one end
- smegmaster
- · Replies 5 ·
Velocity at Time t: My vs Book Answer
- Amith2006
- · Replies 3 ·
Famous family with four or five physicists
- geosmith
- · Replies 1 ·
Can a proton contain 3 up quarks and 1 down quark?
- Delzac
- · Replies 8 ·
Deriving Optics: 22/46 Halo, Sundogs, Coronas, etc.
- xreas0nsx
- · Replies 1 ·
Resistance of a fructum-shaped bar
- Icheb
- · Replies 2 ·
Is this angular or linear momentum?
- allok
- · Replies 1 ·
What Is Impact Velocity?
- ohlhauc1
- · Replies 1 ·
What Force Keeps a Body Moving at Constant Velocity on a Horizontal Surface?
- Amith2006
- · Replies 1 ·
Why is Refracted Angle > Incident Angle?
- Dunkaroos
- · Replies 4 ·