Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Solving Vector Problems: Step-by-Step Guide
- EmmaB03
- · Replies 3 ·
A man drives 12k west, then 15km north, then 20 km east....
- speedyboy
- · Replies 5 ·
Mechanical Energy of a Homogeneous Circular Wheel Rolling at Different Speeds
- bambi14
- · Replies 1 ·
Special Relativity: Traveling to Regulus
- iknowsigularity
- · Replies 21 ·
Calculate Instantaneous Velocity at t=2s
- Biscuit
- · Replies 2 ·
What influences the binding energy of nucleons in a nucleus?
- Bestfrog
- · Replies 7 ·
Please confirm which solution -- Ball is thrown from a tower....
- Julie
- · Replies 8 ·
Overall displacement vector from a walking trip....
- Cayce
- · Replies 19 ·
Is the Negative Sign Correct in Freezing Lake Fourier's Law Application?
- WWCY
- · Replies 3 ·
How do Eddy Currents Affect a Magnet's Motion in a Copper Tube?
- Student149
- · Replies 4 ·
How capacitance, charge, and energy stored changes on a capacitor?
- eprparadox
- · Replies 10 ·
What is wrong with my linear charge density calculations?
- Eclair_de_XII
- · Replies 17 ·
Angular velocity of a door as a truck accelerates
- Pushoam
- · Replies 18 ·
Quadratic equation for maximum compression of a spring
- TheDurk
- · Replies 3 ·
Homework Help Regarding Newton's Theory
- Masrat_A
- · Replies 3 ·
Calculating Torque for Tipping a Block: How Can I Determine the Required Force?
- jocose
- · Replies 6 ·
What EMF is induced in the loop at t=0?
- says
- · Replies 6 ·
Two masses coalesce into one body during collision
- Yaseen
- · Replies 20 ·
Minimum acceleration of a car at which front wheels leave the ground
- Pushoam
- · Replies 3 ·
Wye-Delta and Series-Parallel Circuit Problem
- terryds
- · Replies 4 ·
Find the resistance to produce a specified potential drop
- Vladi
- · Replies 7 ·
Efficient Pump Usage in Fuel Oil Supply System: Solving for Tank Fill Time
- Girn261
- · Replies 6 ·
Small sphere in a circular surface
- Neolight
- · Replies 7 ·
A train sits on top of a 1% grade incline
- Girn261
- · Replies 6 ·
Why is Sn a better conductor than Pb?
- Sleek_
- · Replies 2 ·
Peak amplitudes of E and H fields (Poynting Vector)
- equation3
- · Replies 3 ·
Please Check Answer -- Arrival times of 2 cars....
- Julie
- · Replies 14 ·
Angular momentum of a rotating skew rod
- Pushoam
- · Replies 6 ·
How to Linearize Data for Solar System Motion Analysis?
- Faye716
- · Replies 3 ·
Conservation of Momentum vs Energy
- Student149
- · Replies 3 ·
How do I calculate voltage drops and currents in a resistor circuit problem?
- subzero0137
- · Replies 4 ·
Calculating revolutions per minute
- Sosa
- · Replies 4 ·
Force on a test charge due to two point charges?
- Eclair_de_XII
- · Replies 13 ·
Need help deriving an expression for dy/dt
- Blake_ap1
- · Replies 4 ·
Proving units for angular acceleration
- Jack999
- · Replies 6 ·
Potential Necessary for Ionization by Collision
- elpoko
- · Replies 11 ·
Solve RC Circuit Problem 1: V=IR, Q=CV
- subzero0137
- · Replies 11 ·
Please check -- Looking at phone while driving....
- Julie
- · Replies 2 ·
RC Circuit: 20V AC Source, 12V Voltage Across R, What about C?
- CosmicC
- · Replies 5 ·
With which forces and why spring acts on two bodies
- harmyder
- · Replies 4 ·
Find friction coefficient given initial and final velocity
- tyger2020
- · Replies 3 ·
Find Velocity: Help Solve Ball Problem
- Prasun-rick
- · Replies 12 ·
Navigate the Res-Monster Maze: Find R's Current
- L_landau
- · Replies 6 ·
I with the formula for this marble falling from a platform
- DThes
- · Replies 8 ·
Will the Tractor and Tesla Avoid a Collision on the Mountain Road?
- ChrisBrandsborg
- · Replies 100 ·
How Do You Calculate Total Resistance in Mixed Resistor Circuits?
- shihab-kol
- · Replies 14 ·
How do I convert meters cubed to cubic centimeters?
- Wanting to Learn
- · Replies 4 ·
Thermodynamic Cycle 2: Understanding PV^y, Cp/Cv and PV=nRT
- subzero0137
- · Replies 9 ·
Angle between 2 charged spheres hanging from string
- zachem62
- · Replies 19 ·
Maximizing and Minimizing Wavelength Contributions in Radiowave Reflection
- Const@ntine
- · Replies 11 ·
Weird question in "Vectors" chapter
- Rijad Hadzic
- · Replies 6 ·
Capacitors charged in parallel
- L_landau
- · Replies 3 ·
Thin-Film Interference (2 Wavelengths)
- Const@ntine
- · Replies 14 ·
Moment of Inertia of a Rotating Disk
- Student149
- · Replies 1 ·
Rank the cases from greatest to smallest in order of magnitude
- Rijad Hadzic
- · Replies 2 ·
Potential Difference between two positive point charges
- flannabhra
- · Replies 14 ·
Maximum distance ahead of trooper reached by red car
- Rijad Hadzic
- · Replies 7 ·
Resistance of 2 materials, different resistivity, combined
- zachem62
- · Replies 7 ·
Internal energy of an ideal gas as a function of temperature
- eprparadox
- · Replies 2 ·
A box slides down a plank, Find its velocity
- Girn261
- · Replies 12 ·
Change in a vector upon rotation of the coordinate frame
- Jigyasa
- · Replies 4 ·
Solving the Capacitor Network Problem - Find Ceq = 2C
- Gabriel Maia
- · Replies 7 ·
Finding Parameters for Simple Harmonic Motion at t=1
- Jaimee
- · Replies 1 ·
Angle between electric and magnetic field
- Jigyasa
- · Replies 3 ·
How to Calculate when A Roll Back Would Occur on a Ski Lift
- Chairliftop
- · Replies 1 ·
Water Mass in Leaking Container
- IsoGD
- · Replies 13 ·
Lens & Reflector: Final Idol (Optics)
- Const@ntine
- · Replies 9 ·
Is Substituting q(t) the Correct Method to Verify a Differential Equation?
- WWCY
- · Replies 4 ·
Dynamics of a point mass in circular motion
- Krzysiek Sam
- · Replies 4 ·
Electrical Potential Energy and Potential
- and
- · Replies 2 ·
What Is the Incorrect Statement About the Dynamics of a Falling Chain?
- Saitama
- · Replies 28 ·
Solve F2 Components & Find Magnitudes U & V Axes
- Kaura
- · Replies 31 ·
Classical model of diagamanetism
- Pushoam
- · Replies 2 ·
Moment of inertia changes during rotation—Calculate work?
- Gian_ni
- · Replies 22 ·
A hot air balloon rises at a constant acceleration
- Girn261
- · Replies 7 ·
Water level rise in a tank, continuous flow in, high exit
- Diokhan
- · Replies 11 ·
Find magnitude of car's acceleration
- Rijad Hadzic
- · Replies 5 ·
How do I solve where the absolute potential should be zero?
- Vladi
- · Replies 8 ·
Direction of magnetic field due to a toroid
- Pushoam
- · Replies 4 ·
Find initial velocity and acceleration of a bike
- Girn261
- · Replies 4 ·
Thin film interference—find the height of a wedge
- madfelice
- · Replies 3 ·
At what height does this plank leave the wall
- Pushoam
- · Replies 44 ·
When Do I Use Reading Error in Measurement Uncertainty?
- Darren Byrne
- · Replies 8 ·
What forces contribute to a runner's forward propulsion?
- DeNovo
- · Replies 19 ·
What Physics Topics Relate to Ski Lifts?
- Chairliftop
- · Replies 3 ·
Finding magnitude and angle of Fnet (Concept question)
- A-linav
- · Replies 1 ·
Deciding the direction of magnetic field of a solenoid
- Pushoam
- · Replies 1 ·
If a steel ball were to fall, how far away would it land
- Thara
- · Replies 12 ·
How can I represent these resistances on a diagram?
- GaussianSurface
- · Replies 21 ·
How Do You Solve These Basic A/L Physics Problems?
- Nufi
- · Replies 4 ·
A cube of side L=2 m is made of a cooper cable with 2mm^2
- GaussianSurface
- · Replies 2 ·
Rolling Cylinders across a grid of bars
- Carbon123
- · Replies 26 ·
Final speed of ball : collision with vertical plank at top
- Pushoam
- · Replies 4 ·
Motion of Charged Particles in Electric Fields
- CARL0001
- · Replies 3 ·
Rotation w/constant angular acceleration
- Ignitia
- · Replies 2 ·
Upward Projectile Motion (Which equation do I use?)
- A-linav
- · Replies 2 ·
Magnetic Flux through conductor coil
- Luk
- · Replies 21 ·
Probability of the polymer chain
- Kelly Lin
- · Replies 25 ·
Electrostatics problem involving a Cone
- Tanya Sharma
- · Replies 10 ·
Darryl drives his load of tomatoes.... (Velocity vectors pic)
- A-linav
- · Replies 3 ·