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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Momentum problem due this Tuesday
- FizzixIzFun
- · Replies 10 ·
Moment of inertia for a rhombus
- teleport
- · Replies 31 ·
Yo-yo on a frictionless table: does pulling the string cause rotation?
- igor123d
- · Replies 12 ·
How Do You Solve This Momentum and Projectile Motion Problem?
- pinkpolkadots
- · Replies 23 ·
Velocity of center of mass in an elastic collision
- integra2k20
- · Replies 9 ·
Drawing electric field and equipotential lines for dipole and transmission line
- yazEE
- · Replies 2 ·
How many years would it take before the ice melted?
- physics1007
- · Replies 1 ·
Find the magnitude of the difference between the weights (temperature question)
- physics1007
- · Replies 1 ·
Sound Intensity and sound proofing
- shaka23h
- · Replies 2 ·
Number Density in the Atmosphere
- amcca064
- · Replies 9 ·
Derivative of projectile path magnitude with respect to time
- PMP
- · Replies 20 ·
Thin Lens Equation - How to Solve for the Position of a Converging Lens
- bananan
- · Replies 9 ·
How much KE does the system start with?
- Jared944
- · Replies 9 ·
Work is done by the force of gravity on the bike?
- geroallynne
- · Replies 3 ·
Does Pouring Water From a Height Change Its Temperature?
- ThunderDigger
- · Replies 1 ·
How Does Tension Affect the Speed and Wavelength of Waves in a Guitar String?
- bearhug
- · Replies 1 ·
Sinusoidal Wave Frequency 500 Hz: Pi/3 Rad Apart
- bearhug
- · Replies 1 ·
How Strong is the Moon's Gravitational Pull on a 1-kg Mass on Earth?
- needhelp83
- · Replies 1 ·
Harmonics Problem: Frequency Matching of Strings A and B
- bearhug
- · Replies 5 ·
Torque crank and bucket question
- dnt
- · Replies 1 ·
Finding volume of 0.582 kg O2 using ideal gas law
- mikefitz
- · Replies 3 ·
Ball collides with an inclined plane
- hannibalisfun
- · Replies 2 ·
Moment of inertia and torque for a 4.0 kg rotating plate
- ubiquinone
- · Replies 2 ·
Yo-yo with nested cylinders rolling without slipping
- ubiquinone
- · Replies 11 ·
Volume vs temp vs pressure question
- Rusho
- · Replies 10 ·
Temp equilibrium / latent heat
- fishingaddictr
- · Replies 1 ·
Differential Equation for Electronic Circuit
- Agnostic
- · Replies 6 ·
Does this differential equation setup look correct?
- Agnostic
- · Replies 1 ·
Calculating Force Required to Pull 17N Spool Over 11cm Edge
- Fusilli_Jerry89
- · Replies 12 ·
Finding braking force on a car slowing from 16 m/s to 9.5 m/s
- XPX1
- · Replies 13 ·
Moment of inertia of rod with point mass and sphere using parallel axis theorem
- *best&sweetest*
- · Replies 1 ·
What is the height of the spans when they buckle due to a temperature increase?
- parwana
- · Replies 9 ·
Calculating Energy Needed to Melt an Ice Cube
- fishingaddictr
- · Replies 3 ·
How do you solve the expandable gas cylinder problem with a spring?
- Touchme
- · Replies 1 ·
Normal forces on front and rear wheels of car on 20° incline
- inner08
- · Replies 1 ·
What is the axis for #21 on Moment of Inertia?
- muna580
- · Replies 3 ·
Five work and energy problems with calculator answers
- bssmagik
- · Replies 7 ·
The Ideal Gas Law and Calculating Volume at Different Temperatures
- Forceflow
- · Replies 3 ·
Solving Car Problem: Acceleration, Coasting and Deceleration
- ataglance05
- · Replies 2 ·
Density of Log: Find Area Exposed & Calculate kg/m3
- dstarnes
- · Replies 3 ·
Using Newton's 3rd Law in Tennis to Win
- Navarone666
- · Replies 5 ·
Sailboat Force Problem: Finding Net Force Magnitude and Direction
- neonerd
- · Replies 2 ·
What is the maximum force to push a 50 kg wagon with a 15 kg box on an incline?
- Fusilli_Jerry89
- · Replies 14 ·
Why do high-voltage power lines buzz using the motor principle?
- physicsgal
- · Replies 10 ·
Max Height Attained by Water Stream in P9.81 Tank
- parwana
- · Replies 5 ·
Calculating Temperature Change of a Lead Ball Dropped from 106.0 m
- hatingphysics
- · Replies 1 ·
Cascading RC circuit w/ DC voltage. How will capacitors charging time vary?
- Agnostic
- · Replies 5 ·
Optics question using ray matrices
- nateastle
- · Replies 7 ·
What are the supporting forces for a car parked on a bridge?
- n_ds
- · Replies 1 ·
Centripetal Acceleration and induction roller coaster
- Ronnin
- · Replies 13 ·
How Does Speaker Diffraction Affect Sound Clarity in a Theater?
- sailordragonball
- · Replies 14 ·
Extreme Period for a Physical Pendulum
- whitetiger
- · Replies 7 ·
How to Calculate Weight 'a' on T-Shaped Tower - Simple Explanation
- mrmagoo
- · Replies 1 ·
Can You Calculate Horsepower Based on Acceleration Data and RPM?
- gt5816v
- · Replies 4 ·
Will a Ping-Pong Ball Hit a Doll?
- courtney1121
- · Replies 8 ·
Two different thermal conductivity constants
- a_lawson_2k
- · Replies 2 ·
Solving an Athlete's Shot Range Problem
- ChargedTaco
- · Replies 2 ·
How Do You Calculate the Total Entropy of a Helium Balloon?
- Gemstone
- · Replies 3 ·
How Do Parachute Equations Model Motion and Air Density Changes?
- saud alzaabi
- · Replies 2 ·
What Speed is the Racecar Moving?
- dmolson
- · Replies 2 ·
Velocity of the rocket with changing mass
- annie.hung
- · Replies 2 ·
How Does Angular Velocity Affect Connected Gears?
- the_d
- · Replies 1 ·
Finding acceleration of a rock on an alien planet
- XPX1
- · Replies 7 ·
Finding Possible Values for K in Vector Algebra
- Accurim
- · Replies 9 ·
Solving the Equation: Finding h in a He-filled Balloon
- Touchme
- · Replies 4 ·
What causes a horizontal force in a door supported by two hinges?
- oduracer
- · Replies 4 ·
Calculating Vertical Jump Heights
- needhelp83
- · Replies 1 ·
At which times will the ball be at a height of 15 meters?
- Gdsykes
- · Replies 2 ·
How do you find the mass of a vibrating metal wire on a piano?
- bobby3280
- · Replies 2 ·
Latent Heat and final temperature
- Meowzers
- · Replies 3 ·
Steam warming water and glass from 20°C to 45°C
- labrador_94
- · Replies 1 ·
Magnetic Fields and total force
- Baracabacca
- · Replies 6 ·
Water level and scale readings with floating and sinking objects
- ductape
- · Replies 7 ·
John sliding down stairs with friction: find acceleration, time and final velocity
- struby3
- · Replies 7 ·
What Angle Makes a Projectile Travel Equally in X and Y Directions?
- Xiju
- · Replies 1 ·
Projectile Problem - Time of Peak
- courtney1121
- · Replies 5 ·
Constant Projections: Parabolic Trajectory - Accel.
- courtney1121
- · Replies 3 ·
Dynamic Rotation Total Torque Calculation
- inner08
- · Replies 1 ·
Conservation of energy of a block problem
- aeroengphys
- · Replies 4 ·
Forced Mass on Spring: Amplitude of Vibration Calculation
- hattonphilip
- · Replies 3 ·
What Is the Sound Intensity Outside a Soundproofed Room?
- sailordragonball
- · Replies 5 ·
Torque and rotational dynamics
- inner08
- · Replies 4 ·
What Is the Minimum Speed for Tether Ball Stability?
- fsm
- · Replies 8 ·
Finding Velocity of Falling Mass in Rotating Rod Problem
- curt2121
- · Replies 21 ·
What is the Period of Oscillation Based on Given Coordinates?
- whitetiger
- · Replies 3 ·
What volume must a fish's swim bladder have to stay neutral in seawater?
- kbyws37
- · Replies 2 ·
What is the force needed to make the wedge move?
- stinlin
- · Replies 2 ·
Are you in tune with this beat?
- sailordragonball
- · Replies 19 ·
Waves and sounds - freshwater and air.
- sailordragonball
- · Replies 18 ·
Electrostatics and aluminium foil problem
- yipkawa
- · Replies 3 ·
Estimate Air Speed Above Plane Wings: Bernouli Eqn
- kbyws37
- · Replies 1 ·
Frequency of reflected sonar wave detected by submarine A
- sailordragonball
- · Replies 1 ·
Carnot Refrigerator coefficient of performance
- Kalie
- · Replies 1 ·
Why Does Charles' Law Give a Different Answer Without Converting to Kelvin?
- MRCHEM
- · Replies 2 ·
Rotational Dynamics and tangential velocity
- flash
- · Replies 2 ·
Find the satellite's altitude above the earth's surface
- whitetiger
- · Replies 4 ·
What Constant Results from Manipulating Gravitational Force Calculations?
- almost__overnow
- · Replies 5 ·
Solving Physics Problems: Finding Speed and Displacement
- dronegun
- · Replies 1 ·