Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Heat absorption, reflection, and radiation
- anna sung
- · Replies 2 ·
How do i Rearranging Equations/formula?
- aquann
- · Replies 1 ·
Amplitude and period harmonic motion
- pb23me
- · Replies 5 ·
Calculating Work Done: 25lb Force at 60 Degrees on Object - Find Distance Moved
- jcamaross
- · Replies 3 ·
What is the Work Required to Raise a Chain to a Given Height?
- Sidthewall
- · Replies 1 ·
What is the Polarization of These Waves?
- fluidistic
- · Replies 8 ·
Change of gravitational potential energy
- jcamaross
- · Replies 3 ·
Circus attraction - How far does this sled move up an incline
- lewie
- · Replies 2 ·
Circular accelaration with increasing velocity?
- Denken
- · Replies 3 ·
Calculating amount of revolutions
- smpolisetti
- · Replies 9 ·
How Does a Spring Constant Affect Circular Motion on a Frictionless Table?
- acg7160
- · Replies 4 ·
Simple Harmonic Motion Acceleration Calculation and Equations
- Winegar12
- · Replies 3 ·
Total energy oscillation problem
- vande060
- · Replies 1 ·
Gravitational Field: Proton & Electron Mass Ratio
- Willian93
- · Replies 1 ·
Is There a Conservation Equation for Spring Forces and Potential Energy?
- pb23me
- · Replies 6 ·
How to find mu without the force of friction
- Chrismacs
- · Replies 1 ·
How to Calculate Maximum Angle for Ramps in Supermarkets | Basic Physics Help
- AfroQueen
- · Replies 7 ·
Solve Final Speed of Ice Sliding Down Slope
- hyemal.zephyr
- · Replies 4 ·
Moment of Inertia,not hw problems, but trying to understand the concept better.
- sowmit
- · Replies 1 ·
How Do You Calculate the Rotational Inertia of a Wheel?
- nicolec08
- · Replies 3 ·
Question on Law conservation of Mechanical Energy
- LiveEz
- · Replies 3 ·
Help with Forces in 2 Dimensions
- MatthewBann
- · Replies 1 ·
Solve Magnetic Field Force & Velocity Problems: WebAssign Homework
- sachemeast
- · Replies 5 ·
Effect of magnetic field on pair production
- aurao2003
- · Replies 9 ·
Are my calculations right? Also, not sure about a formula?
- kLPantera
- · Replies 17 ·
Impulse delivered to a sphere: Rotation motion (momentum) question
- boaty
- · Replies 1 ·
The gravitational force between and around 2 objects
- robert80
- · Replies 2 ·
It is asking for the magnitude and direction of the electric field strength
- happyknife
- · Replies 5 ·
Calculating the current supplied by a battery
- Bugsy23
- · Replies 1 ·
Entropy change of a bullet hitting water
- KaiserBrandon
- · Replies 2 ·
Confusion with Resistance and Current
- AsksQuestions
- · Replies 2 ·
Solve Number 2 in Free Space: a=(Vrk/(1-kt))
- mopar969
- · Replies 6 ·
Graph Of An Inelastic Collision[ Distance vs. Time]
- asz304
- · Replies 2 ·
How would daily life change if the speed of light was lowered to 20m/s?
- Jlinc
- · Replies 2 ·
What is the Range of a Soccer Player's Kick at 20m/s and 15° Angle?
- yellow_angel
- · Replies 8 ·
Rocket on a Spring: Solving for Speed and Compression
- wulfsdad
- · Replies 8 ·
What is the purpose of connecting a resistor in the circuit?
- thereddevils
- · Replies 2 ·
Solve Heat Problem: Estimate Altitude, Rate of Heat Transfer
- tweety1234
- · Replies 1 ·
Solving Bernoulli's Equation Homework w/ Tank of Water
- noagname
- · Replies 4 ·
How Does Adding Mass Affect Normal Force?
- mystmyst
- · Replies 2 ·
Locate the Centriod of a Line Problem
- smashbrohamme
- · Replies 5 ·
Finding the potential energy function( I don't know how the answer came to be)
- Raziel2701
- · Replies 1 ·
Moment of Inertia - equilateral triangle
- zwingtip
- · Replies 8 ·
Solving for F_T, F_N, and alpha
- Haru Yo Koi
- · Replies 1 ·
What Is the Correct Calculation for the Width of the Central Blue Light Fringe?
- aurao2003
- · Replies 1 ·
ODE for Water traveling up a paper towel
- RagincajunLA
- · Replies 12 ·
Calculating Angular Acceleration and Velocity for a Rotating Disk
- DrummingAtom
- · Replies 4 ·
What is the Torque Problem in Muscle Mechanics?
- Noctix
- · Replies 4 ·
Dropping the Ammunition Box: Physics Problem Explained
- homevolend
- · Replies 2 ·
How Can You Calculate the Magnitude of Vector A Using Dot Product Rules?
- rambo5330
- · Replies 3 ·
Calculating Uncertainties with linear combinations
- Mike_1
- · Replies 8 ·
How Do Rotating Reference Frames Affect Forces on a Merry-Go-Round?
- jimmy.dude
- · Replies 3 ·
Questions Regarding Circuits and Electricity
- AnomalyCoder
- · Replies 1 ·
Finding time of a collision using impulse and conservation of momentum
- Kaon
- · Replies 2 ·
Solve Flow Rate Problem: 9 kW Shower
- tweety1234
- · Replies 5 ·
What is the acceleration of the box?
- nesan
- · Replies 23 ·
Solving Energy Questions: Force, Gravity, Kinetic Energy
- kfink85
- · Replies 3 ·
How Do You Calculate the Speed of a Satellite in Orbit?
- Neek 007
- · Replies 1 ·
Find the energy given from a lightbulb
- AnomalyCoder
- · Replies 2 ·
Calculating Impulse: Tennis Ball Rebound at 45 Degrees | Homework Help
- runningirl
- · Replies 3 ·
How Does an Asteroid Impact Affect Earth's Angular Speed?
- FahimP
- · Replies 3 ·
Equation of Motion: Calculating Braking Distance on a Straight Road
- nasadall
- · Replies 1 ·
Angular momentum of particle in xy plane
- barz1
- · Replies 2 ·
Common derived units of the physical quantities
- nasadall
- · Replies 18 ·
Explain the term permittivity and how this affects force
- skanecfc
- · Replies 2 ·
Calculating Maximum Torque on Rotating Square
- physics_10
- · Replies 1 ·
How Do You Determine the Direction of Torque?
- tatiana
- · Replies 3 ·
Why Are Parts B-D of My Torque Calculations Incorrect?
- VitaX
- · Replies 1 ·
Is the Uncertainty Principle the Key to Solving Homework Problems?
- bon
- · Replies 2 ·
Calculating X-Radiation Equivalent to 20mR/h
- nonphysical
- · Replies 6 ·
How is kinetic energy and momentum conserved in an internal explosion?
- pb23me
- · Replies 14 ·
The distance from the top of a block floating in the water to water
- PoPrOcKsRoCk
- · Replies 5 ·
What happens with the resistance of a wire with twice the diameter
- koat
- · Replies 11 ·
Free body diagram for mass on oscillating spring
- physics20
- · Replies 5 ·
Work-Energy: Find the angle of the inclined plane
- epr2008
- · Replies 1 ·
What is the magnitude of the force in this vector and forces problem?
- jsmith613
- · Replies 6 ·
Surface Area of Satellite Signal transmission on Earth
- ron_jay
- · Replies 13 ·
How Does Doubling Earth's Orbital Radius Affect Its Surface Temperature?
- chris_0101
- · Replies 5 ·
How Do I Calculate Kinetic Friction and Acceleration in These Physics Problems?
- xxxixpats
- · Replies 2 ·
How far above the earth's surface is the satellite orbit?
- Julie323
- · Replies 3 ·
Cyclotron with 1500 V between the two dees
- gsquare567
- · Replies 3 ·
Reversible adiabatic expansion of ideal gas, entropy change?
- krhisjun
- · Replies 4 ·
Melting ice block on an inclined plane?
- NotANumber
- · Replies 1 ·
Finding Mistake: Calculate Coefficient of Kinetic Friction for Sliding Mass
- bentael
- · Replies 2 ·
Help with magnetic forces problem Is my solution correct?
- astronut555
- · Replies 1 ·
Total Resistance: Solving for 3ohm | Homework Help
- foode
- · Replies 1 ·
Calculate Total Capacitance: Step-by-Step Guide
- foode
- · Replies 2 ·
Reverse Carnot Engine (Heat Pump)
- mrmonkah
- · Replies 1 ·
Oscillation of a spring and mass on an asteroid
- bobred
- · Replies 2 ·
The magnitude of terminal potential difference?
- physics369
- · Replies 1 ·
Variable conditions of double slit interference
- aurao2003
- · Replies 1 ·
Friction problem involving spool
- issacnewton
- · Replies 12 ·
Need help with Physics? Check out these common questions!
- bl4cksta
- · Replies 1 ·
Solving for velocity from relativistic momentum
- chris_0101
- · Replies 1 ·
I can solve that the problem about motion in one dimention
- bl4cksta
- · Replies 5 ·
Can't the trick (finding final temperature)
- nabilsaleh
- · Replies 1 ·
Solving for Velocity: Kinetic Energy and Rest Energy Relationship Explained
- chris_0101
- · Replies 2 ·
Specific Heat Capacity of solids liquid or Gas, which is largest?
- matthew77ask
- · Replies 7 ·
Solving Force of 17g Bullet Accelerated in Rifle Barrel
- xlogit3k
- · Replies 5 ·
How to Find the Final Speed of an Experimental Train?
- xlogit3k
- · Replies 3 ·