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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Amplifier (non inverting) question
- peanutbutter
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Classical mechanics, angular momentum and velocity not parallel, why?
- karnten07
- · Replies 4 ·
How Is Tension Calculated in an Acrobat's Wire?
- jfri14
- · Replies 1 ·
Calculating Work and Potential Energy with Gravity at 2.789 m/s^2 Acceleration"
- Aldwyn
- · Replies 5 ·
How Do You Calculate Impulse and Force in a Rear-End Collision?
- DANIELLYMA
- · Replies 1 ·
Momentum problem (should be pretty easy I think)
- KatieLynn
- · Replies 3 ·
Divergence in cylindrical coordinates at radius a
- EricVT
- · Replies 2 ·
Free Fall and max altitude Question
- oconn1
- · Replies 1 ·
Would someone explain this in general terms?
- roguel33ter
- · Replies 1 ·
How Do You Calculate the Time for a Mass to Fall Using Moment of Inertia?
- jago-k1
- · Replies 1 ·
Calculating Space Shuttle Velocity: Astronaut Melroy's Historic Flight
- beachbabe0191
- · Replies 4 ·
How Do You Calculate the Second Mass in a Static Equilibrium Problem?
- jfri14
- · Replies 2 ·
Calculating Initial Velocity of Metal Ball on Ramp
- emma3001
- · Replies 1 ·
Finding wave speed in a string given period and antinodes spacing
- Joza
- · Replies 1 ·
Final Velocity of Second Ball After Collision
- dmitrip
- · Replies 2 ·
How Do You Calculate the Amplitude of a Standing Wave at a Specific Point?
- Joza
- · Replies 1 ·
Calculating Energy Required to Heat and Change State of Ice in an Oven
- srose9625
- · Replies 12 ·
Ice skater coefficient of friction with unknown mass
- tod88
- · Replies 4 ·
Elastic collision: larger mass hits smaller at rest, find speeds and angles
- fliinghier
- · Replies 4 ·
How Many Rocks Must a Child Throw to Maintain Constant Speed in a Wagon?
- bkoz316
- · Replies 1 ·
Velocity of skier slides off a frictionless hill
- Sucks@Physics
- · Replies 10 ·
What is the bird's speed immediately after swallowing?
- cse63146
- · Replies 6 ·
Finding instantaneous speed as string winds around rod in circular motion
- Sucks@Physics
- · Replies 6 ·
Does Water at the Top of a Dam Have Kinetic Energy?
- Ajwrighter
- · Replies 24 ·
How Much Power is Needed to Boil Water in a Coffee Mug?
- LostInScience
- · Replies 1 ·
What is the Correct Approach to Solving a Challenging Pulley Problem?
- jalen
- · Replies 2 ·
Are there any basic formulas for motion in kinematics?
- patrickking
- · Replies 9 ·
Momentum of a 100g ball dropped from 16m
- Sucks@Physics
- · Replies 12 ·
Ladder vs Wall Homework - Force Calculation
- Dante5454
- · Replies 1 ·
What is the Tension in Scaffolding Ropes?
- Dante5454
- · Replies 2 ·
Car accelerating on ramp - power of engine
- physstudent1
- · Replies 4 ·
Converting angular velocity to rpm for circular motion
- Sucks@Physics
- · Replies 8 ·
Centripetal acceleration of a bicycle wheel point at 7.0 m/s
- Sucks@Physics
- · Replies 2 ·
Finding friction force and coefficient when applied force causes acceleration
- pinkyjoshi65
- · Replies 3 ·
How Does the Doppler Effect Alter the Frequency Heard by the Engineer?
- phEight
- · Replies 8 ·
What Is the Amplitude 3cm from an Antinode in SHM?
- Ginerva123
- · Replies 3 ·
What Impulse Does a Handball Deliver to a Wall?
- ~christina~
- · Replies 10 ·
Work and displacement physics problem
- grouchy
- · Replies 3 ·
How to Determine Pressure with Different Density Liquids in a Manometer
- Damatrix02
- · Replies 10 ·
Why does glass look green when viewed at the edge?
- iddheepak
- · Replies 1 ·
Magnetic field at point P from two arcs using Biot-Savart law
- krondragon
- · Replies 3 ·
Ladder network.attenuator chain?
- asiangrrl
- · Replies 1 ·
Statics - sphere with string attached
- tyche
- · Replies 1 ·
Why does a rigid body have uniform angular acceleration?
- Sucks@Physics
- · Replies 2 ·
Simple conceptual question - rolling object question:
- frasifrasi
- · Replies 11 ·
Why does a projectile travel farthest at 45 degrees?
- clipperdude21
- · Replies 2 ·
Finding acceleration from graphs (s vs t^2)
- BayernBlues
- · Replies 4 ·
Charge flowing through a capacitor
- aliaze1
- · Replies 5 ·
Calculating Angular Momentum of a Rotating Disk with a Point Mass on the Rim
- ph123
- · Replies 11 ·
Electrostatic Self-Energy of a Uniform Density Sphere of Charge
- harshey
- · Replies 1 ·
What is the Amplitude of the Magnetic Field for a Point Source?
- Ryo124
- · Replies 3 ·
Velocity of sports car in truck collision using momentum conservation
- gfrant7070
- · Replies 3 ·
Required frictional force for a car to keep it from sliding off a curve.
- galuda
- · Replies 4 ·
Thermo -> Heat Pump, confirmation.
- Pythagorean
- · Replies 2 ·
Circular Motion and artificial gravity
- mkwok
- · Replies 1 ·
Terminal Velocity of a sky diver
- mkwok
- · Replies 3 ·
Angular Acceleration of a rubber wheel
- jmcmillian
- · Replies 2 ·
Solving a Long Jump Problem: Find Takeoff Speed & Increase Jump Distance
- jonnyboy261
- · Replies 5 ·
Effects of Air Resistance on Simple Harmonic Motion Graphs
- Momentum09
- · Replies 2 ·
Neutron star density and mass calculation
- drewsteriam
- · Replies 2 ·
How Does the Work-Energy Principle Determine the Motion of a Thrown Rock?
- shakejuhn
- · Replies 1 ·
Finding final temperature when ice melts in warm water
- jaded18
- · Replies 27 ·
Can a Stunt Biker Clear a 45m Gap at 20m/s and 30 Degrees?
- bibbs
- · Replies 1 ·
How Does Spring Constant Affect Work Done on a Stretched Spring?
- grouchy
- · Replies 1 ·
Physics question - object released at equillibrium position of spring
- shadowysun
- · Replies 3 ·
What is the electric potential energy of two electrons separated by 2.68 nm?
- breedb
- · Replies 1 ·
I dont understand why this is wrong. can someone me?
- princessfrost
- · Replies 2 ·
Calculating the Angle of Force for 0.140 kg Ball Attached to a 0.600 m String
- Paulbird20
- · Replies 12 ·
Physics Problem: Can a Biker Make a 45m Gap Jump at 20m/s and 30 Degrees?
- bibbs
- · Replies 2 ·
How Long Does It Take for a Block to Slow Down on an Inclined Plane?
- suspenc3
- · Replies 2 ·
How to determine if an equation represents a linear function
- ineedhelp23
- · Replies 4 ·
Fundamental frequency and tension of a guitar string
- BlueSkyy
- · Replies 12 ·
What is the impact time and average force in a bullet-wooden block collision?
- clipperdude21
- · Replies 6 ·
Calculating Velocity & Kinetic Energy of Bicycle Racer Rolling Downhill
- bigtymer8700
- · Replies 3 ·
Gravitational force inside a uniform sphere and shell theorem
- physicsanyone
- · Replies 3 ·
Average power to climb stairs and power dissipated by braking car
- ihopeican
- · Replies 4 ·
Projectile motion, tightrope tension, and door torque problems
- gamerzgamerz
- · Replies 11 ·
What is the Force Constant and Minimum Height for Simple Harmonic Motion?
- Jalhalla
- · Replies 8 ·
Is Acceleration Zero at the Maximum Position of a Spring-Mass System?
- Jalhalla
- · Replies 1 ·
Acceleration of an electron through a uniform electric field
- XJellieBX
- · Replies 2 ·
What is the Minimum Height for Simple Harmonic Motion on a Trampoline?
- Jalhalla
- · Replies 5 ·
Solve Amplitude for Guitar String Vibrating in Fundamental Mode
- weathercheck
- · Replies 7 ·
Calculating Vertical Deflection of Electron in Parallel Plate Setup
- XJellieBX
- · Replies 1 ·
Finding ball radius when cylinder floats with submerged ball suspended by thread
- Roger Wilco
- · Replies 3 ·
Solving a System of Equations for Internal Forces at E
- Vidatu
- · Replies 11 ·
Variable force and kinetic energy from a graph
- mbrmbrg
- · Replies 4 ·
Terminal Velocity Steel Ball Bearing in Oil
- jldavid
- · Replies 2 ·
Stone kicked from 52 m cliff with initial horizontal velocity
- janhen200
- · Replies 1 ·
Calculate the smallest possible distance between the two electrons
- XJellieBX
- · Replies 7 ·
Solving a Physics Problem: Cannon Shell Split and Momentum Calculation
- zinedine_88
- · Replies 4 ·
Calculating Photon Emission and Threshold Wavelengths
- Antnorwe
- · Replies 3 ·
How Do You Calculate Average Force from Power and Velocity?
- Rav
- · Replies 1 ·
Calculating Tension in a Cord Attached to an Inclined Crate
- chaotixmonjuish
- · Replies 5 ·
Charging capacitor in parallel with resistor circuit
- joker_900
- · Replies 1 ·
Why Is Initial Velocity Equal to Final Velocity in Parabolic Motion?
- lilstar
- · Replies 1 ·
Vertical Component of a Velocity Vector
- _mae
- · Replies 12 ·
Mass of cylinder using ang.velocity
- bigtymer8700
- · Replies 3 ·
Kinetic Theory Of Gases - radiometer
- InnealtóirLeTeacht
- · Replies 1 ·
Block dropped onto spring: finding oscillation frequency
- Grapz
- · Replies 6 ·
Solving Bernoulli Problem: Find Water Tank Height
- Redstar2
- · Replies 4 ·