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 Does a Hydraulic Lift Maintain Equilibrium?
- jrouse33
- · Replies 1 ·
Can Adding Ice and Steam Change Water Temperature?
- jayphysics
- · Replies 2 ·
What is the current in this circuit?
- SuxAtPhysics
- · Replies 3 ·
Angular Speed and Energy Conservation
- Sheneron
- · Replies 3 ·
How Do You Calculate Frequency, Wavelength, and Speed from a Wave Equation?
- cse63146
- · Replies 6 ·
Astronaut propelling back to ISS by throwing tools
- xwildhtdx
- · Replies 1 ·
Determining the Index of Refraction
- cse63146
- · Replies 5 ·
Calculating amount of compression a bone can withstand
- sruthis
- · Replies 4 ·
Changes of state and latent heat
- checkmarks
- · Replies 1 ·
Predicting path/direction of a charge in a magnetic field (drawings included
- pinkenergy
- · Replies 16 ·
Calculating the Length of a Floating Soda Can
- zzoon
- · Replies 2 ·
Diving Depth for 1/20 Atmospheric Pressure Differential
- bpw91284
- · Replies 6 ·
Charge of q Problem: Find q from Two 3.0g Spheres on 1.0m Threads
- Mindscrape
- · Replies 3 ·
Where should steel reinforcement bars be placed in concrete?
- sanado
- · Replies 9 ·
How Much Energy Was Released in the Fuel Tank Explosion?
- StephenDoty
- · Replies 1 ·
How Does Wind Speed Affect Roof Pressure in a Storm?
- Rikin25
- · Replies 1 ·
Acceleration of gravity , from a pendulum
- th3plan
- · Replies 4 ·
Sound Intensity pig calling contest
- just.karl
- · Replies 12 ·
Magnetic Field Inside Wire Quick Q - (I've asked 3 times and no answers)
- Fusilli_Jerry89
- · Replies 9 ·
Simple Harmonic Motion of a wave
- iwonde
- · Replies 4 ·
L_{min}=56.7mAnswer: 340.7mSolve 2 Momentum Questions: Quick Answers!
- subwaybusker
- · Replies 3 ·
Maximum Force Analysis for FB and FC Limits in a Tension System
- Ry122
- · Replies 8 ·
What is the range of response time when communicating with a friend from Mars?
- louie3006
- · Replies 14 ·
Standing Sound Waves: Wavelengths in 121 cm Tube - SOLVED
- dals2002
- · Replies 2 ·
Gravitational field and spaceship
- VanKwisH
- · Replies 15 ·
How far does a trampoline with k=52000 N/m stretch?
- soccerbabe22
- · Replies 6 ·
Speed and normal force for ball rolling down rough sphere
- lowbattery
- · Replies 2 ·
RC Circuit Potential and Current Calculation at Time=0 and Infinity
- Dahaka14
- · Replies 2 ·
Calculating Tension Force: Cable Cars in San Francisco
- Xaspire88
- · Replies 1 ·
Waves on a String linear density?
- just.karl
- · Replies 8 ·
Understanding Newton's 3rd Law: Reactionary Forces to Friction
- sarm2005
- · Replies 2 ·
How Does a Spring Balance Measure Force in Different Elevator Scenarios?
- lsufan1988
- · Replies 3 ·
Superposition, amplitudes and superposed waves.
- isabelle87
- · Replies 4 ·
Conservation of Energy Challenge Problem
- bcjochim07
- · Replies 1 ·
Power loss in transmission at different voltages
- Jstew
- · Replies 3 ·
Spring-launched plastic cube on friction slope: energy equation check
- bcjochim07
- · Replies 1 ·
Finding the coefficient of friction, ramps and acceleration
- gRACK
- · Replies 1 ·
Get a negative dot product is to have an angle larger than 90 degrees.
- StephenDoty
- · Replies 5 ·
Determine the medicine's flow speed through the needle
- LesVampires
- · Replies 7 ·
Threshold of Hearing for Sound Waves in Outdoor Concerts
- JinM
- · Replies 2 ·
How fast is this jet (UFO?) traveling in this video?
- SystemaNoob1
- · Replies 2 ·
Calculating New Rotation Period of a Star After Shrinking Diameter
- Hollywood
- · Replies 1 ·
Finding mass with given stress, strain, and original area
- Taco John
- · Replies 1 ·
Calculate Rotation Period for Amusement Park Ride
- techtrailer89
- · Replies 2 ·
What Are the Speeds of the Fragments After an Explosion?
- StephenDoty
- · Replies 15 ·
Energy density of electric field
- Cheetox
- · Replies 1 ·
What is the relationship between height and velocity for a falling object?
- maxximo1
- · Replies 3 ·
Find the magnitude of the acceleration of the particle.
- saturn67
- · Replies 4 ·
Eardrums "Pop" Outward on a Train - Bernoulli's Equation
- skier07
- · Replies 4 ·
Spring collision between two carts on frictionless surface
- bcjochim07
- · Replies 4 ·
Solving a Model Trebuchet Problem - Physics Coursework
- splooj
- · Replies 8 ·
Current needed for suspended 1.1 mm copper wire between two current-carrying wires
- qazxcdew11
- · Replies 1 ·
Calculating Angular Momentum: Particle+Meter Stick
- jmwachtel
- · Replies 5 ·
Center of Gravity for nonuniform plank
- bullsangelsra
- · Replies 3 ·
Electromagnetism, force between dipole and grounded plane
- Antti
- · Replies 1 ·
Apollo 1 command Module Pressure/Force
- mr.toronto
- · Replies 3 ·
How to Calculate Maximum Induced EMF in a Rotating Coil Gaussmeter
- tim_3491
- · Replies 2 ·
How to solve for the work done by a force on an object in the x direction?
- chocolatelover
- · Replies 4 ·
Can You Tune an Organ Pipe Without Altering Its Physical Construction?
- celinemariah
- · Replies 2 ·
Can Gas Become Solid at Absolute Zero in a Bottle?
- gateman234
- · Replies 2 ·
Finding Electric Forces Between Identical Spheres
- batman1169200
- · Replies 1 ·
Help with Gauss's law and RC circuits
- skyliner34
- · Replies 4 ·
What Is the Minimum Spring Constant Needed for George's Safe Bungee Jump?
- killa0587
- · Replies 1 ·
What is the energy requirement for traveling from Earth to the Moon?
- msattar07
- · Replies 3 ·
How Do Temperature Changes Affect Ultrasonic Distance Measurements?
- JSapit
- · Replies 8 ·
What was the speed of the projectile when it left the cannon?
- msattar07
- · Replies 5 ·
Calculate the change in potential energy
- killa0587
- · Replies 16 ·
Universal Gravitation and spheres
- klopez
- · Replies 1 ·
Rotational/Tangential Motion Problem
- richylai
- · Replies 1 ·
Motorist's 7 min trip: displacement, average speed and velocity
- chocolatelover
- · Replies 2 ·
Sphere projected up incline with friction: total motion time
- atavistic
- · Replies 1 ·
Car Crash Collision - Calculating Velocity
- StephenDoty
- · Replies 1 ·
Force between two electrons separated by one meter
- Aprilshowers
- · Replies 2 ·
Changes in Resistance due to Temperature
- dari09
- · Replies 1 ·
Friction, object at rest then accelerates.
- EvilBunny
- · Replies 3 ·
Calculating the Net Force of Bruce Nuclear Development
- mr.toronto
- · Replies 1 ·
How Do You Calculate Accelerations and Distance in Gyroscope Dynamics?
- rytagi17
- · Replies 1 ·
Solving a 2.1x10^3 kg Car Motion Problem
- princesspriya
- · Replies 4 ·
Find Force Exerted on Blocks Sliding Down a Rough Incline
- koolbaseman
- · Replies 2 ·
How to Derive the Differential Equation for Forced, Damped Oscillations
- qspeechc
- · Replies 3 ·
Finding acceleration from two forces on a 3 kg object
- Cursed
- · Replies 7 ·
Mistake in solving for work in physics?
- princesspriya
- · Replies 4 ·
Finding the slop of a string (Waves)
- cse63146
- · Replies 3 ·
Finding kinetic friction coefficient from angle, distance and time
- Will M
- · Replies 12 ·
Understanding Momentum in Collisions: Truck vs. Car Velocity Change
- StephenDoty
- · Replies 1 ·
Energy from 110m Dam: Cv=4.2kJ/kg/°C
- herbert2
- · Replies 2 ·
Estimate the velocity of each stone have just after the collision
- Newton86
- · Replies 9 ·
Force on vertical walls of L-shaped water tank with d = 4.0 m
- brett812718
- · Replies 1 ·
L-C-R Circuit - finding current
- ttiger2k7
- · Replies 2 ·
Quick vector question (involving coulomb's law)
- Terp
- · Replies 14 ·
What is the electric field at the center (in N/C)?
- NegaChin
- · Replies 4 ·
What is the Specific Entropy of Ice?
- physics_newbi
- · Replies 7 ·
What is the electric field at point P with given coordinates?
- ~christina~
- · Replies 9 ·
Carnot engine working in reverse poblem-
- LandOfStandar
- · Replies 12 ·
Deriving formulas for radial visualization of 3D and 8D samples
- jst
- · Replies 1 ·
Derive an expression for the tension in the cord
- lightfire
- · Replies 2 ·
Max Power of Resistor in 3-Resistor Circuit
- complexc25
- · Replies 3 ·
Max Initial Separation for Meeting of Two Moving Bodies
- Mr Virtual
- · Replies 1 ·
Websites about velocity of sound for Report Intro.
- TFM
- · Replies 3 ·
Maximum height an insect can crawl up a hemispherical bowl with friction
- Mr Virtual
- · Replies 1 ·