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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Work to compress helium from 3000 to 1000 cm³ at constant pressure and temperature
- Shayna
- · Replies 2 ·
Bernoulli's fluid flow in a tube [desperate]
- erinec
- · Replies 1 ·
Transverse Waves- Verticle Rope
- bollocks748
- · Replies 1 ·
Ideal gas equation and boyle's law
- moeraeleizhaj
- · Replies 1 ·
3 children and a balancing a seesaw
- Bones
- · Replies 3 ·
Circular motion (planetary orbit) question
- theneedtoknow
- · Replies 1 ·
Arm problem, Static Equilibrium
- Bones
- · Replies 1 ·
Calculating the Net Force Vector for Multiple Force Vectors
- bigzee20
- · Replies 3 ·
Why is heat absorbed nonzero in an adiabatic process?
- jimbo71
- · Replies 1 ·
Work-Kinetic Energy Theorum Problem
- ariana0923
- · Replies 3 ·
Physics Dynamics: Angular and Linear Motion of Machine Components
- tom23
- · Replies 5 ·
Average speed, displacement and average velocity of car.
- ntseg001
- · Replies 1 ·
A dielectric in side a spherical shell
- FourierX
- · Replies 4 ·
High Pass Amplifier: C & R1 in Parallel
- killerinstinct
- · Replies 1 ·
Curious about Linear Density (μ) of a string
- erinec
- · Replies 3 ·
How Is the Force Exerted by the Wedge on the Sphere Calculated?
- Dtails
- · Replies 6 ·
Superposition Gravataional Forces
- koab1mjr
- · Replies 1 ·
Calculating kWh from Amps, Voltage and Time
- chrisdanger
- · Replies 1 ·
Solving Flow Rate Through Pipes with Pressure Difference
- Husker70
- · Replies 2 ·
Package A Races Down the Ramp: How Long Does it Take?
- mags
- · Replies 3 ·
What Torque Causes Earth's Precessional Cycle?
- mdewdude
- · Replies 2 ·
Can a Limo Fit into a Smaller Garage with Special Relativity?
- bcjochim07
- · Replies 1 ·
How many revolutions does the merry go round make as it stops?
- mags
- · Replies 5 ·
Converting Watts to Volts: Maximum Current for a 3.5W Resistor
- haleyscavone
- · Replies 4 ·
Adiabatic Process and Heat Absorption
- jimbo71
- · Replies 1 ·
Isothermal expansion and final pressure
- jimbo71
- · Replies 1 ·
Vertical circle-direction of a force?
- lu6cifer
- · Replies 3 ·
Find speed of billiard ball 2 after collision with ball 1
- eddwinn
- · Replies 1 ·
A frustrating question regarding pressure, fluid and force
- erinec
- · Replies 4 ·
Static Equilibrium of deltoid muscle
- Bones
- · Replies 3 ·
How Does Friction Affect the Movement of a Thrown Turkey?
- austin1250
- · Replies 2 ·
Archimedes' Principle- Popping lid off of a barrel
- mchesypoof
- · Replies 4 ·
What is the orbital distance for a satellite with a 125 min period around Earth?
- choyphin
- · Replies 5 ·
What is the Resultant Polarization Angle for Two Perpendicular Harmonic Waves?
- eprparadox
- · Replies 3 ·
How Does Fluid Density Affect Absolute Pressure in a Siphon System?
- mchesypoof
- · Replies 1 ·
Understanding Inverted Images: Calculating M and f Ratios
- Shackleford
- · Replies 2 ·
Free body diagram, inclined plane, and finding V from x vs t graph
- jcpwn2004
- · Replies 8 ·
Why Does Current Lead Voltage by 110 Degrees in This Circuit?
- Edwardo_Elric
- · Replies 1 ·
Ideal gas heat addition and piston-spring expansion problem
- bubuchnik
- · Replies 9 ·
Buoyant Force with two attached blocks
- mchesypoof
- · Replies 3 ·
Greatest Pressure on Brick: Bottom Side
- jimbo71
- · Replies 1 ·
Projectile Motion from a height
- rachie9
- · Replies 5 ·
Magnetism, Displacement Currents and Parallel Plate Capacitors
- TFM
- · Replies 1 ·
Sound intensity ratio for two car horns 8m and unknown distance away
- jvirus872000
- · Replies 1 ·
Is Energy Density Homogeneous with Stress and Strain Units?
- nItRo_BoY
- · Replies 1 ·
Rolling cylinder on a ramp: finding kinetic energy components
- tonedog12345
- · Replies 3 ·
Calculating Power for an Elevator with Maximum Load and Speed
- nns91
- · Replies 2 ·
What is the speed of a block sliding down an inclined plane with friction?
- sskicker23
- · Replies 4 ·
Time to restore equilibrium on horizontal block spring system
- bocobuff
- · Replies 1 ·
What is the energy lost when a body falls onto a moving cart without friction?
- devanlevin
- · Replies 1 ·
Volume of Submerged Solid: Solve Given Densities
- stratomire
- · Replies 1 ·
Atwood Machine(Conservation of String)
- mikee
- · Replies 1 ·
How Much Does It Cost to Run a Digital Clock for 34 Days?
- haleyscavone
- · Replies 1 ·
Cost of a energy from a battery
- haleyscavone
- · Replies 1 ·
What is the linear speed of the ball when it leaves the incline?
- CoffinSupply
- · Replies 1 ·
Does Angular Momentum Depend on the Choice of Origin?
- sumitmanhas
- · Replies 1 ·
What will be the voltage across the resistor in an AC circuit?
- jaejoon89
- · Replies 2 ·
Solve Pendulum Problem: Tension 150 N, Mass .65 kg, 28m Apart
- Kandycat
- · Replies 3 ·
Moment of Inertia for Infinite Density (mass per area)
- Hells_Kitchen
- · Replies 5 ·
Work done by friction on a block sliding down an inclined ramp
- reaperkid
- · Replies 4 ·
What Calculations Determine Roller Coaster Dynamics on a Vertical Track?
- dr2112
- · Replies 1 ·
Velocity to place a 14.5kg object into orbit at 100km altitude
- Squeek
- · Replies 3 ·
How Is Pressure Distributed on the Upper and Lower Surfaces of an Airplane Wing?
- Husker70
- · Replies 3 ·
Minimum force to hold a rod at a hinged point
- saltine
- · Replies 2 ·
How Do You Calculate the Area of a Rectangular Glass Rod?
- uno
- · Replies 2 ·
How Does a Generator's EMF Change with Magnetic Field Variations?
- jaejoon89
- · Replies 1 ·
Multiple springs in harmonic motion
- hellblazer970
- · Replies 5 ·
Calculating Velocity at a Specific Point on a Curved Slit
- Melawrghk
- · Replies 8 ·
Velocity and Direction of Shrapnel After an Object Explodes at Rest
- synergix
- · Replies 16 ·
Solving for Horizontal Displacement: Ball on a String
- aquapod17
- · Replies 2 ·
Gravitron with greased walls - does the rider stay pinned or slide
- squishypeachy
- · Replies 3 ·
Can Reviewing Old Physics Problems Improve Understanding?
- redhot209
- · Replies 1 ·
Solving the Solar Power Puzzle in the US
- Omanlew
- · Replies 11 ·
Calculating Acceleration of Point P Relative to O
- Melawrghk
- · Replies 2 ·
Burning Calories: Calculating Time to Radiate 285 Calorie Donut
- iseidthat
- · Replies 3 ·
What Is the Orbital Period of an Asteroid with Twice Earth's Mean Radius?
- DRM126
- · Replies 1 ·
Cyclist of 80kg: Descending 3.4 degree Hill at 9.0 or 30 km/hr?
- Omanlew
- · Replies 1 ·
Solving Oscillatory Motion: When Block B Starts to Slip?
- Tzar_MacEng
- · Replies 4 ·
Find the angle to the horizonal using the given information.
- paroxism--now
- · Replies 2 ·
How far did the man walk and what was his average speed?
- Throwback24
- · Replies 4 ·
Find the mass of the skateboard
- Maiia
- · Replies 2 ·
Does a rigid body lose energy when a mass drops from rotating system?
- fluidistic
- · Replies 19 ·
Second moment of inertia of upside down t beam
- gnarkil
- · Replies 3 ·
Understanding Angular Momentum in Particle Motion
- sumitmanhas
- · Replies 3 ·
Angular momentum merry go round
- sumitmanhas
- · Replies 4 ·
Compass in a solenoid, oscillating
- TFM
- · Replies 59 ·
Help with homework problem
- jackiemoon
- · Replies 1 ·
What Are the Final Velocities in a Perfectly Elastic Collision Problem?
- southernbelle
- · Replies 3 ·
Calculating Speed of Mass Oscillating on Spring
- veitch
- · Replies 3 ·
Rotational Motion/Pulley Problem
- mburt3
- · Replies 5 ·
Rearranging g = w/ft to make w the subject
- snakey
- · Replies 4 ·
Rotational Energy Homework - Calculate Moment of Inertia & KE
- bkl4life
- · Replies 1 ·
Bernoulli's equation and a water tank
- notagenius08
- · Replies 7 ·
How does a lettuce spinner remove water from lettuce?
- bkl4life
- · Replies 4 ·
How Can Particle Trajectory and Motion Dynamics Be Analyzed in a Planar System?
- jackiemoon
- · Replies 1 ·
Why do polished glass surfaces stick together briefly?
- AirHendrix
- · Replies 5 ·
Can't all electromagnetic waves travel at light speed?
- Diagon
- · Replies 1 ·
Why Is Cosine Used Instead of Sine in Calculating Tension in Physics?
- -EquinoX-
- · Replies 1 ·
Determine angle for gun to be shot at
- mmn
- · Replies 2 ·
Minimum speed on banking road (circular motion)
- Elbobo
- · Replies 5 ·