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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Tension in rope when car A tows car B
- harmeet_angel
- · Replies 5 ·
Answer Modulus of Speed: Calculation w/fluid mech.
- dopey9
- · Replies 1 ·
Finding distance to earthquake from seismic wave arrival times
- pugfug90
- · Replies 7 ·
Urinary system, as a thermodynamic system
- student85
- · Replies 2 ·
Projectile motion rock throw speed
- Rasine
- · Replies 2 ·
Calculating the Distance Between Two Stones Dropped Off a Cliff
- Rasine
- · Replies 2 ·
Is It Groundspeed or Airspeed for Moth Flight in a Wind Tunnel?
- goldfinger820
- · Replies 7 ·
Maximum height reached by a ball using work-energy theorem
- ph123
- · Replies 9 ·
Solve Electron Current in 1.00mm Gold Wire: How Long for 1 Mole?
- fsm
- · Replies 4 ·
How Does Impulse Affect Cart and Boy Dynamics?
- youngblood
- · Replies 1 ·
Translate into scientific notation?
- KraYzie
- · Replies 3 ·
Calculating Radius of Circular Area from Laser Power and Energy Density
- Dart82
- · Replies 2 ·
Is Lightning Deflected to the West in the Western US due to Magnetic Fields?
- wakejosh
- · Replies 1 ·
Can a Single Galaxy Estimate Provide an Accurate H0 Value?
- b_o3
- · Replies 1 ·
How far does the block travel after being released?
- Aggie
- · Replies 3 ·
Solution to Peculiar Problem: Can Closed Integral be Evaluated?
- Kolahal Bhattacharya
- · Replies 5 ·
Centripetal Force and Tension in Rotating System
- Kaos_Griever
- · Replies 4 ·
Question: Kepler's third law of planetary motion
- Jess048
- · Replies 1 ·
Critical Density: H0=70km/s.MPC, Fate of Universe
- b_o3
- · Replies 1 ·
Waves: String Physics? Correct my units
- pugfug90
- · Replies 2 ·
How do I identify which resistors are in series vs parallel in this circuit?
- Aikenfan
- · Replies 30 ·
Exam question, rotational motion.
- Kelschul
- · Replies 1 ·
Solve Conical Pendulum: Find Speed, Period, Horiz. Comp., Rad. Accel.
- coolskool
- · Replies 1 ·
Doppler Effect Help: Solving Car Alarm Q with 21.06 m/s Speed
- ku1005
- · Replies 2 ·
Does adding mass to the bag increase centripetal acceleration of the plug?
- lord_blurg
- · Replies 10 ·
What Is the Tension in the Support Cable?
- Kelschul
- · Replies 1 ·
Calculating Velocity of a Block Shot from a Spring Gun
- Aggie
- · Replies 4 ·
Angular Velocity of u Shape - Solving for Angular Velocity
- Kelschul
- · Replies 1 ·
Exclusion Principle - why doesn't degneracy balance weight?
- AlfaFoxtrot
- · Replies 1 ·
Orbital period of satellite above Planet X
- Peach
- · Replies 19 ·
Extracting permeability from B vs. n graph with exponential trendline
- cukitas2001
- · Replies 10 ·
Find the induced emf between the ends of the antenna
- map7s
- · Replies 2 ·
Projectile motion - limited given data
- Crilico
- · Replies 2 ·
Solving Solid State Physics: Max Wavelength of Po Crystal Diffraction
- kel
- · Replies 1 ·
What is the work done on the bucket in a frictionless pulley problem?
- nguyenn2
- · Replies 1 ·
How Is Work Calculated When Pumping Water from a Half-Full Cylindrical Tank?
- shogunultra
- · Replies 3 ·
Electric Field (velocity of a particle)
- suspenc3
- · Replies 13 ·
Electron flow through a wire time
- fsm
- · Replies 10 ·
Finding fulcrum position on a 5m lever with 300kg load and 100kg force
- Alan Butcher
- · Replies 4 ·
How to set up six inertia and rotation problems
- dnt
- · Replies 4 ·
What Are the Dynamics of a Motor Tethered to a Tower?
- ataglance05
- · Replies 1 ·
Electric potential of concentr
- fatfatfat
- · Replies 2 ·
Battery Problem (finding current w/ batteries in parallel)
- aleksxxx
- · Replies 4 ·
Can we apply work-kinetic energy theorem when capacitor plates separate?
- prabhat rao
- · Replies 2 ·
Inertial and Non-Inertial Frames of Reference Question
- Kaos_Griever
- · Replies 6 ·
Predict Whether Collision will be Elastic or Inelastic
- dimensionless
- · Replies 1 ·
Finding member forces in a truss with pin and cable supports
- Bradracer18
- · Replies 7 ·
Force Problems Involving Two or More Objects
- harmeet_angel
- · Replies 5 ·
What is the parallel-component of the weight
- Jess048
- · Replies 2 ·
Equations of motion for uniform acceleration
- geordieonline
- · Replies 6 ·
Ball bearings momentum physics problem
- danago
- · Replies 8 ·
What Causes Oscillation Errors in Air-Track Glider Experiments?
- animanga008
- · Replies 1 ·
Which Cable Has Greater Tension in a Spinning Chair Problem?
- harmeet_angel
- · Replies 1 ·
Transfer Function of LRC Filter
- mrjeffy321
- · Replies 5 ·
What Is the Difference Between These Electrical Power Equations?
- AznBoi
- · Replies 1 ·
How Does Ceres' Gravity Affect Copper Wire Elongation?
- unique_pavadrin
- · Replies 2 ·
Equilibrium and Torque of quadricep muscles
- bortron
- · Replies 4 ·
Finding acceleration of a 40 kg crate pushed with 280 N across a floor with friction
- bship810
- · Replies 2 ·
Rotational Kinetic Energy of ride
- mathmuncher
- · Replies 3 ·
How Long Does Light Take to Travel from the Sun to Earth?
- bmack
- · Replies 9 ·
Minimum horizontal force to lift a bicycle wheel over a curb
- Peach
- · Replies 10 ·
Net force from two forces on a book stack
- torrobinson
- · Replies 6 ·
Kepler's Third Law and Newton's Law of Universal Gravitation for Planet P
- 3dsmax
- · Replies 6 ·
Measuring Frequency of stroboscope/strobe light
- crazycaddy
- · Replies 2 ·
Magnetic field strength against current
- australianschoolkid
- · Replies 3 ·
How Do You Determine the Distance a Proton Must Be from a Current-Carrying Wire?
- feelau
- · Replies 4 ·
What is the effect of an inductor on current in an AC circuit?
- dobry_den
- · Replies 1 ·
Battery Problem - With Loop Rule (pic attached)
- aleksxxx
- · Replies 5 ·
How Do You Calculate the Percent Change in Momentum for a Lorry?
- spritchs
- · Replies 5 ·
Magnetic Force and Two Moving Charges
- Soaring Crane
- · Replies 1 ·
Force on an oxygen ion in Earth's electric field
- Simon316
- · Replies 2 ·
Circular Motion/Gravity Problems
- unique_pavadrin
- · Replies 11 ·
How many electrons in a 25 Ah battery and through an 8 kW shower heater?
- CathyLou
- · Replies 4 ·
Simple Momentum Question: Calculating Y-Direction After Given Angles
- oridniv
- · Replies 4 ·
Angular Momentum Problem of rod
- nateshoe
- · Replies 1 ·
Magnet through Loop (Faraday's Law?)
- Crimsonangel
- · Replies 2 ·
Calculating the Power Needed to Light NYC in the War of Currents
- skippycat
- · Replies 5 ·
How Do You Convert Angular Velocity to RPM?
- blackice552
- · Replies 10 ·
Coefficient of kinetic and static friction
- matt000
- · Replies 6 ·
Why Does a Rolling Ball Stop Moving but Not Roll?
- Gyroscope
- · Replies 5 ·
Questions about dead light bulbs
- pugfug90
- · Replies 11 ·
Coursework Ideas: Physics Ball Bouncing Experiment
- Michaelcarson11
- · Replies 4 ·
How Do You Calculate Particle Motion in the x-y Plane?
- fruitl00p
- · Replies 21 ·
What are the Steps to Solve a Skew-Symmetric Matrix Problem?
- Kolahal Bhattacharya
- · Replies 3 ·
Fourier transform of exp(-ax²)
- Kolahal Bhattacharya
- · Replies 3 ·
Proving the Complex Conjugate of a Matrix Determinant
- Kolahal Bhattacharya
- · Replies 2 ·
Find the direction and magnitude of the net magnetic field
- cy19861126
- · Replies 2 ·
Is the Adjoint of a Unitary Matrix Still Unitary?
- Kolahal Bhattacharya
- · Replies 3 ·
Prove AB and BA have the same eigenvalues
- Kolahal Bhattacharya
- · Replies 2 ·
Finding final velocity and acceleration from distance and time
- strawberry7
- · Replies 24 ·
Calculating Magnetic Field from Generator Graph
- candyq27
- · Replies 2 ·
How Is Average Velocity Calculated in a Car Race with TV Interruptions?
- strawberry7
- · Replies 10 ·
Is the Motion of a Mass Attached to Two Springs Simple Harmonic?
- e(ho0n3
- · Replies 25 ·
How Far Can We Measure Star Distances Using Parallax with a 0.5 Arcsecond FWHM?
- kingwinner
- · Replies 13 ·
Mechanical Energy: Solve Snowball Problem
- norcal
- · Replies 4 ·
Rotational Kinetic Energy Problems
- yus310
- · Replies 18 ·
What provides centripetal force in a vertical circular loop?
- danago
- · Replies 8 ·
Determining the force for culculating a ski tow's perf. on a slope
- Helicobacter
- · Replies 2 ·
Electromagnetism: Turning effect of coil
- lingling
- · Replies 1 ·
Mechanical Energy Homework: Zero Planet w/ 10kg Probe Launch
- norcal
- · Replies 3 ·