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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How Is the Average Velocity of 22 m/s Calculated in a Golf Ball Strike?
- mushhhy
- · Replies 2 ·
Where does Earth get energy to move backward in relative motion?
- peacebird
- · Replies 12 ·
Finding Angular Acceleration for a Rotating Wheel with a Hanging Mass
- flower76
- · Replies 3 ·
Gain/Loss of Kinetic/Potential Energy of Pulley System
- reggie
- · Replies 2 ·
Can voltage be zero if a charge counteracts the electric field?
- david90
- · Replies 2 ·
What Speed Will the Spacecraft Hit the Moon's Surface?
- Azytzeen
- · Replies 2 ·
Where Will the Trolley Have the Greatest Kinetic Energy?
- reggie
- · Replies 2 ·
Is frequency directly proportional to wavelength in sound velocity experiments?
- joyful_heart
- · Replies 2 ·
What Happens to Magnetic Fields in Coils with Reversed Currents?
- charikaar
- · Replies 2 ·
Chemistry: pH after adding water
- theCandyman
- · Replies 2 ·
Angle of a force when towing a suitcase
- barney007
- · Replies 3 ·
Angular momentum of clock hands with given masses and lengths
- UrbanXrisis
- · Replies 2 ·
Calculate Physics of 0.2kg Ball Thrown Vertically
- reggie
- · Replies 2 ·
Calculating C in Terms of A, B, and Theta
- jungleismassiv
- · Replies 2 ·
GPS Satellite Orbital Speed: 5.50km/s
- dalitwil
- · Replies 4 ·
Mechanics Assignment Help: Find Tension & Friction Coefficients
- jdstokes
- · Replies 6 ·
When does current cancel in Ampere's law?
- Lomion
- · Replies 3 ·
The Seven Bridges Of Konigsberg
- sunilkamadolli
- · Replies 2 ·
Electric fields, Pulses, Electromagnetic energy
- KU_Mustang
- · Replies 2 ·
Solving a Physics Question: Alice, Bob, Charlie & Daniel
- sherbet_pop1
- · Replies 8 ·
How Can You Calculate the Water Current in the Elora Gorge Problem?
- Charlie Brown
- · Replies 7 ·
Shortcut to proving inequality with sum of cubes
- Benny
- · Replies 2 ·
Jump Before Impact: Can Injury Be Avoided?
- Benny
- · Replies 2 ·
Hooke's Law: Calculate Spring Constant k in Newtons or kg?
- misskitty
- · Replies 2 ·
Relative Motion problem... help! (now with scans of what I have done so far!)
- Byrne
- · Replies 4 ·
How to differentiate the expression 4xy = y^2 + 2ln(x)
- footprints
- · Replies 7 ·
Calculating Speed of Human Eye Lens: f-stop = 4
- airkapp
- · Replies 2 ·
Spring collision: 4kg mass at rest, 6kg moving at 10m/s with K=100N/m
- Anzas
- · Replies 2 ·
Double integral of da/|c - r| over a sphere surface
- Murr14
- · Replies 1 ·
Help Solving Failed Physics Test Questions
- whozum
- · Replies 4 ·
Is the Magnetic Force an Exception to the Rule of Work?
- leolaw
- · Replies 8 ·
Rate of Change of x in a Right Triangle
- UrbanXrisis
- · Replies 12 ·
Will the Cyclist Skid Around the Turn?
- Woody11
- · Replies 3 ·
Finding Equilibrium Force: Is it Correct?
- UrbanXrisis
- · Replies 4 ·
What is the tension as a function of theta
- amackeytexas
- · Replies 7 ·
Ball bounce height, falling from bridge, whale swimming speed
- Lalasushi
- · Replies 3 ·
Calculating values for a full wave bridge rectifier with zener regulator
- Shahil
- · Replies 2 ·
"Solving for Temperature - 23°C to -11°C
- ProBasket
- · Replies 9 ·
How Do You Solve These Basic Illumination Problems?
- drunkenfool
- · Replies 2 ·
Calculating Anne's Final Mark with Matrix Equations
- carltonblues
- · Replies 2 ·
Proving the Number of Nodes in a Full Binary Tree
- NuPowerbook
- · Replies 2 ·
Contact force, weight and friction on accelerating platform
- PhysicsIdiot
- · Replies 12 ·
Electrons in a beam of televison tube
- Gonger
- · Replies 2 ·
[Quantum Mechanics]Uncertainty principle
- pezzang
- · Replies 1 ·
Will a precipitate form wiht this CaCl2 and NaOH mixture
- ChemRookie
- · Replies 2 ·
Finding the red planet's period using Kepler's third law
- dalitwil
- · Replies 6 ·
Current Through an Oscillating LC Circuit
- evilempire
- · Replies 2 ·
Average velocity= displacement/time
- jen333
- · Replies 3 ·
Trouble understanding *Electric Potential*
- Eternal
- · Replies 2 ·
How to Solve a Conical Tank Calculus Problem
- punjabi_monster
- · Replies 4 ·
What is the equation of the tangent plane to a surface at a specific point?
- Pengwuino
- · Replies 2 ·
Calculating Translational Speed of a Bowling Ball with a Vertical Rise
- elemnt55
- · Replies 2 ·
Solving Mystery of String Force: Find the Answer
- stunner5000pt
- · Replies 2 ·
Shortening the radius and its effect on speed
- jaymode
- · Replies 5 ·
Race car acceleration at angle to radius in circular turn
- kpangrace
- · Replies 2 ·
Convert 10.464 Rad/s^2 to m/s^2
- kpangrace
- · Replies 2 ·
RRSP What amount does each have today?
- aisha
- · Replies 2 ·
How to Solve for Unknown Forces in Equilibrium Truss Problems?
- mistophiles
- · Replies 2 ·
What are the tensions connected to a spinning mass in circular motion?
- xangel31x
- · Replies 12 ·
Center of mass and acceleration in spring-mass system after string cuts
- stunner5000pt
- · Replies 12 ·
Figuring Out the Refraction Angle of Light Through a Glasprisma
- Kahsi
- · Replies 16 ·
Green light reflected from film with n=1.38 on glass with n=1.50
- cdhotfire
- · Replies 2 ·
Non-Linear Golf Club Angles: Regression Analysis and Estimations
- alyssa
- · Replies 4 ·
Derivative Check: Xe^{lnX^2}' = X^2e^{lnX^2}+2Xe^{lnX^2}
- UrbanXrisis
- · Replies 3 ·
Determining Angular Speed of High-Speed Sander
- elemnt55
- · Replies 2 ·
Finding net torque on a CD given angular acceleration
- elemnt55
- · Replies 2 ·
Collision and momentum problems with clay balls
- oldunion
- · Replies 9 ·
How Much Heat is Needed to Raise the Temperature of a House?
- Gonger
- · Replies 3 ·
Newton's Law of Cooling on cup of coffee
- ProBasket
- · Replies 2 ·
What is the force exerted by the axle on the cylinder?
- jaymode
- · Replies 5 ·
Taylor Polynomial of 6th Degree for ln(1-x^2) with c=0
- shan
- · Replies 4 ·
Three identical resistors: parallel to mixed parallel-series
- vaxopy
- · Replies 2 ·
Primitive roots, specifically of 18
- abertram28
- · Replies 2 ·
What is the Volume of a Solid with a Triangular Base and Square Cross-Sections?
- ProBasket
- · Replies 3 ·
Effective Potential Method for Solar System Orbits
- orange
- · Replies 2 ·
How far do Fred and Brutus slide on astroturf after collision?
- oldunion
- · Replies 12 ·
Proving infinately many primes 12k-1
- abertram28
- · Replies 2 ·
Population Growth - Bacteria Culture at 300 to 30000 in 4.32 Hrs
- ProBasket
- · Replies 3 ·
What Are the Energy Changes in Mobile Phones and Televisions?
- expscv
- · Replies 2 ·
Collisions between the alpha particles and air molecules
- Faizi
- · Replies 2 ·
How to Design an Egg Drop Project with Limited Materials by Tomorrow?
- Ghettobabe
- · Replies 2 ·
Is angular momentum conserved when net torque is not zero?
- UrbanXrisis
- · Replies 6 ·
Remote control tipping point with force on overhanging end
- dalitwil
- · Replies 6 ·
What is the angular velocity of the disk
- vworange
- · Replies 6 ·
Calculating Plane Energy for a Safe Takeoff
- sbpleecniadl
- · Replies 2 ·
What is the Magnitude of Attractive Force Between a Satellite and Earth?
- IamatWork
- · Replies 2 ·
Magnetics and magnetic waves
- physreject
- · Replies 2 ·
How Do You Calculate the Angular Velocity of a Disk?
- dalitwil
- · Replies 2 ·
Hanging Sign Problem and Pulley Problem
- Glenn K
- · Replies 2 ·
How to find currents and voltages in circuits
- chase222
- · Replies 4 ·
Design Experiment: Investigate Alpha Particle Range in Air
- Faizi
- · Replies 2 ·
Converting potential difference in volts to electron volts
- Lannie
- · Replies 2 ·
Circular acceleration and Integration
- jungleismassiv
- · Replies 11 ·
Line integral on rectangle boundary depends only on area
- Sneaksuit
- · Replies 6 ·
Fv=10 000 What do I do to find weekly payment general annuity
- aisha
- · Replies 6 ·
How Much Mass Does an Electron Gain at 500 MeV Energy?
- irony of truth
- · Replies 2 ·
Understanding Transitivity in Relations: Why R on A={0,1,2,3} is Not Transitive
- physicsuser
- · Replies 2 ·
Stopping a rotating disk with an axe
- jaymode
- · Replies 2 ·
Finding Sin r from 1.52 and 20 Degrees
- Novus Dakota
- · Replies 10 ·