Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Simple problem that webassign keeps saying wrong
- xX1SHOt
- · Replies 2 ·
Magnitude of Angular Acceleration
- tag16
- · Replies 1 ·
Calculating Collision Time: Astronaut's Experiment on Alien Planet
- Malgrif
- · Replies 3 ·
How do light dimmers change current or voltage?
- Jules18
- · Replies 1 ·
What is the relationship between h and R in this circular motion problem?
- Almond
- · Replies 10 ·
Is 2.6x10^9C a Plausible Answer for a Pith Ball Electrostatics Problem?
- Procrastinate
- · Replies 2 ·
Ultrasound transmitter component- longitudinal or transverse waves?
- coffee&tv
- · Replies 10 ·
Finding the Longest Wavelength of Standing Waves on a 254.0 cm String
- kathyt.25
- · Replies 2 ·
How Do You Calculate the Forces Needed to Move and Accelerate a Trunk?
- caesar88
- · Replies 1 ·
What is the Force Exerted by the Sun on Earth?
- tag16
- · Replies 1 ·
Does Body A Exert a Negative Impulse on Body B in a Closed System?
- nokia8650
- · Replies 1 ·
Equipotential Surfaces: Calculating Work Required to Move a Charge
- daimoku
- · Replies 3 ·
Field at a distance 'z' from a solenoid
- Dell
- · Replies 1 ·
Car collision, force exertion and impulse.
- TheAkuma
- · Replies 4 ·
UV vs IR Light Bulb Power Comparison
- georgeh
- · Replies 7 ·
Baseball thrown at 60° strikes building 18m away and 6m high
- txaggiejs18
- · Replies 4 ·
Finding speed of sound in an object
- kathyt.25
- · Replies 2 ·
Microscope Theory - Alternatives to the use of light?
- mohammed_a
- · Replies 5 ·
Calculating Velocity of a Pendulum Using Equations
- Dazz4C
- · Replies 8 ·
Uniform rod can pivot about a horizontal, fr
- synchronous
- · Replies 2 ·
Proving Stacking Dominoes' Maximum Overhang w/ Centre of Gravity
- Chewy0087
- · Replies 13 ·
10 kg block on 40 kg slab pulled with 100 N force
- bodensee9
- · Replies 8 ·
To avoid a collision what is your reaction time?
- KaseyK
- · Replies 3 ·
Maximum photocurrent ejected by electrons in photoelectric effect
- Mola
- · Replies 1 ·
Calculating Tension and Mass in a Hanging Spotlight System
- Lancelot59
- · Replies 9 ·
Finding interference minima and maxima from two in-phase speakers
- brunettegurl
- · Replies 6 ·
Kinetic and Potential Energy rollercoaster
- Gregg
- · Replies 4 ·
Calculating the wavelength of soundwaves
- leena19
- · Replies 10 ·
Pendulum conservation of energy question
- neoaddict
- · Replies 5 ·
What is the equivalent resistance and current in this parallel circuit?
- jackxxny
- · Replies 8 ·
The Fundamental Frequencies of Open Pipes
- leena19
- · Replies 3 ·
Calculate acceleration of object with applied force and friction
- username12345
- · Replies 2 ·
Should It Be In Series or Parallel?
- Procrastinate
- · Replies 6 ·
Tension in a Uniform Cable: Where Does the Force Balance?
- Amar.alchemy
- · Replies 3 ·
Tangential Acceleration of pendulum
- blackboy
- · Replies 16 ·
What is the Average Force on Each Foot During a Jump?
- prophecygirl
- · Replies 2 ·
Water speed in a 2.68 cm diameter pipe filling a bathtub
- Liketothink
- · Replies 16 ·
Steel floating in mercury problem
- Liketothink
- · Replies 11 ·
What is the Time to Drain a Tank with a Small Hole at the Base?
- powerbuddy
- · Replies 2 ·
Volleyball player jump height: why is my air time 0.61s not 0.83s
- KaseyK
- · Replies 8 ·
A Simple Acceleration Problem - two different answers
- PeterPumpkin
- · Replies 4 ·
Radioactive Decay: 56Co to 56Fe - Which Type of Beta Decay?
- Jules18
- · Replies 4 ·
Solving Circular Motion: Train Slows from 90 to 50 km/h
- blackboy
- · Replies 3 ·
Free energy from Thorium to Radon
- Xeno24
- · Replies 1 ·
Average Speed - isn't this average velocity?
- KaseyK
- · Replies 3 ·
Calculate Length of Steel Above Surface in Steel Cylinder Floating in Mercury
- talaroue
- · Replies 16 ·
Coal Car and horizontal impulse
- turandorf
- · Replies 5 ·
Center of Mass: Plate with hole
- turandorf
- · Replies 1 ·
Pile driver - Conservation of enegy
- darkminos
- · Replies 14 ·
What Beat Frequency Results from Unequal Tensions in Piano Strings?
- physics10189
- · Replies 6 ·
Hole in a container and its distance from the bottom
- brunettegurl
- · Replies 6 ·
What is the velocity of gasoline in a siphon tube after opening?
- smillphysics
- · Replies 5 ·
Young's modulus of copper by projecting a laser
- negat1ve
- · Replies 2 ·
How can trigonometry be used to calculate distance in physics problems?
- fireykitty
- · Replies 4 ·
Measuring gravitational acceleration in a vacuum
- Skorbee
- · Replies 3 ·
Minimum force needed to inject medicine through a syringe
- mercury126
- · Replies 2 ·
Force and flow speed of a syringe
- aligass2004
- · Replies 6 ·
Cart, Incline, Pulley, and a messed up Acceleration.
- Some_Thing
- · Replies 5 ·
Potentiometer vs rheostat for measuring resistance by V-I graphs
- elvinc
- · Replies 1 ·
Grade 11 physics project on how cameras work
- danielprive6
- · Replies 1 ·
Solve Friction on an Angle with 7.0kg Mass: u=0.2
- thelastdeath
- · Replies 1 ·
How Much Work Does a Plane's Engine Perform to Reach 3200m at 65m/s?
- Some_Thing
- · Replies 3 ·
Rotational kinetic energy of a spinning solid cylinder
- grandprix
- · Replies 2 ·
What is the mass density of a submerged cylinder?
- cyclemun
- · Replies 7 ·
How Long Does It Take for a Car to Catch Up to a Truck?
- muktl
- · Replies 1 ·
Derive a general formula for finding range with a spring launcher
- Bobbert
- · Replies 13 ·
Ranking thermal radiation rates for cube, sphere, and hemisphere
- tjr39
- · Replies 1 ·
Inclined plane and inclined force-acceleration
- dejna007
- · Replies 3 ·
Finding cable cross-sectional area for stress-strain calculation
- grandprix
- · Replies 3 ·
How Do You Calculate the Tension in a String Lifting an Accelerating Mass?
- iamtrojan3
- · Replies 2 ·
What is the submarine’s maximum safe depth?
- GreyGus
- · Replies 3 ·
Why Does an Athlete Seem to Hang in the Air During a Vertical Jump?
- Amar.alchemy
- · Replies 4 ·
Inelastic collision of snadwiches
- weskerq8
- · Replies 5 ·
One-dimensional motion with w/ aceleration dependant on speed.
- Brasi333
- · Replies 3 ·
Tank and a hole in it whats the speed?
- brunettegurl
- · Replies 7 ·
Electron and proton revolutions per second in magnetic field
- FelixISF
- · Replies 5 ·
What is the induced current in a moving frame near a changing current wire?
- Dell
- · Replies 14 ·
Block and bullet collision problem
- reb659
- · Replies 7 ·
Speed of car down hill with same power as up.
- alexander_i
- · Replies 6 ·
Positively charged side with induced emf
- VenaCava
- · Replies 4 ·
Why is tangential acceleration g·sin(20°) for a ball swinging in a vertical circle?
- blackboy
- · Replies 8 ·
Find Acceleration with only Initial Velocity and Final position?
- fireykitty
- · Replies 6 ·
What is the Minimum Force Required to Inject into a Vein Using a Syringe?
- smillphysics
- · Replies 2 ·
Aim of Refraction Practical Using Snell's Law
- Awsom Guy
- · Replies 7 ·
How to Determine the Upward Acceleration of a Mass in a Pulley System?
- delecticious
- · Replies 3 ·
Calculating the speed of sound in air
- leena19
- · Replies 2 ·
find the magnitude and direction of the final velocity
- bigboss
- · Replies 3 ·
A complex question which has mass, time and acceleration involved
- TheAkuma
- · Replies 4 ·
What is the Average Velocity Vector of a Clock's Minute Hand?
- arperidot
- · Replies 2 ·
Two basic physics 11 wave questions
- Kingsley
- · Replies 2 ·
Determine the dielectric constant
- jamba88
- · Replies 1 ·
Horizontal force pushing 96 kg crate at constant speed up 27° ramp
- coco87
- · Replies 6 ·
Range of mass so the body won't move
- Mad_Eye
- · Replies 1 ·
Determining Acceleration of Pulley System w/ Friction
- lexi011
- · Replies 1 ·
Calculate angles from axis with a 3d vector
- xX1SHOt
- · Replies 5 ·
Finding when human population exceeds Earth's water and space capacity
- Radja24
- · Replies 4 ·
What rate does water flow through the pipes?
- brunettegurl
- · Replies 5 ·
Calculating Pressure at the Bottom of a Tank Using Density and Volume
- talaroue
- · Replies 36 ·
Which Jet Ski Crosses the River Faster?
- wadini
- · Replies 16 ·
Finding liquid density from neutral buoyancy of a sphere
- talaroue
- · Replies 3 ·