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 Do Two Knights Collide When Accelerating Towards Each Other?
- mslena79
- · Replies 3 ·
Finding velocity and position of helicopter P from two position vectors
- CathyLou
- · Replies 16 ·
Two-stage acceleration problem with equal time intervals
- mslena79
- · Replies 8 ·
Ideal gas and mercury expansion in a glass thermometer
- evgreece
- · Replies 3 ·
Calculating G using Kepler's Third Law: The Relationship Between k, a, and P
- Benzoate
- · Replies 5 ·
How Long Does It Take for a Wall to Pass a Train Window?
- afcwestwarrior
- · Replies 2 ·
A battery-battery-resistor circuit
- zimo
- · Replies 2 ·
Question-Proper form for nuclear addition
- Potaire
- · Replies 10 ·
Kinematics of ball rolling motion
- rela
- · Replies 4 ·
What Potential Difference Is Needed for Series Capacitors to Store Same Energy?
- nate559
- · Replies 1 ·
What Steps Are Needed to Solve This Complex Pulley Problem?
- a_d777
- · Replies 16 ·
What is the Tension in Each Cord of a Suspended Object with Three Variables?
- EvanQ
- · Replies 16 ·
Calculating Average Acceleration of a Golf Ball
- chaotixmonjuish
- · Replies 11 ·
How Accurate Are My Initial Velocity and Maximum Height Calculations?
- bwilhelm
- · Replies 1 ·
How Do You Calculate Resultant Displacement in Vector Problems?
- anglum
- · Replies 35 ·
How does fringe shift relate to velocity in the Michelson-morley experiment?
- Benzoate
- · Replies 6 ·
What is the area of a 7.000 μm thick leaf made of 7.000 oz of gold?
- jjc39
- · Replies 5 ·
Calculating Final Speed of 2.00kg Block of Ice Sliding Down Inclined Plane
- EvanQ
- · Replies 4 ·
Solving Physics Problems with the Box and Banana
- EvanQ
- · Replies 7 ·
Fundamental Interactions Problem
- eraemia
- · Replies 4 ·
Linearizing Data: Velocity vs Time vs Distance-Time Squared
- Younglearner
- · Replies 4 ·
Chosing to stop or accelerate through a traffic light
- sadeysnow
- · Replies 12 ·
How Do You Calculate the Angles of Nodal Lines in a Ripple Tank Experiment?
- GoJays32
- · Replies 3 ·
Solving Oscillating Mass-Spring System w/ Non-Resonant Force
- Yann
- · Replies 5 ·
Average velocity of a horse cantering away then galloping back
- lostfan176
- · Replies 7 ·
Why is electric flux independent of area size?
- Winzer
- · Replies 1 ·
Method of Least Squares Linear Fitting
- Defennder
- · Replies 4 ·
Why can I hear bat cries if they should be ultrasonic?
- knockout_artist
- · Replies 4 ·
How Does the Two-String Box Work with Strings and Corks?
- soccerstarz37
- · Replies 1 ·
Lightyears and the surface area of a planet.
- niyati
- · Replies 2 ·
Projectile motion cannon problem
- EvanQ
- · Replies 21 ·
How to get an egg into a bottle
- Simon Lee
- · Replies 19 ·
Relative Velocity of two swimmers
- JayKo
- · Replies 4 ·
Equilibrium between release and decay Kr-85
- Minkowski
- · Replies 3 ·
Can Work Be Expressed In lb x lbf Units?
- Xkaliber
- · Replies 2 ·
Calculating Antarctica's Ice Volume: Radius 2000km, Thickness 3000m
- BankaiNinja
- · Replies 3 ·
Classical Physics - Pulley Problem
- danny271828
- · Replies 42 ·
Phsyics problem. I must find distance in Kilometers.
- afcwestwarrior
- · Replies 6 ·
Physics Problem. I must find the horizontal distance x between the 2 baloons.
- afcwestwarrior
- · Replies 2 ·
How Do You Calculate Theta for Vector Sum Using Component Method?
- AraProdieur
- · Replies 3 ·
Finding forces in members AB, CD, BE, and BC
- End_John_Ear
- · Replies 3 ·
Finding direction of resultant force from three forces
- pirateyoshi
- · Replies 8 ·
Why Do New Members Surge on This Forum During This Season?
- rootX
- · Replies 6 ·
Electrostatics - two capacitors in parallel
- zimo
- · Replies 5 ·
Can't remember how to differentiate this
- rainbojedi
- · Replies 3 ·
What's the angular velocity of the disk
- cosmic_tears
- · Replies 7 ·
Standing wave phase at points P, Q, R, S, T, U on a string
- Gunman
- · Replies 1 ·
Calculating Tension of Threads for Suspended Spider
- faoltaem
- · Replies 7 ·
Why does my conical pendulum rod equation give tan θ = (ω²x sin θ)/g?
- pardesi
- · Replies 4 ·
Finding the Force Exerted on a Log Using Virtual Work Calculations
- balogun
- · Replies 4 ·
How Do You Calculate the Time and Speed of a Falling Object?
- aussierad
- · Replies 1 ·
Tuning Fork Physics: Impact of Wax on Vibration Frequency
- Plutonium-94
- · Replies 1 ·
What is the magnitude of the vector sum of the four vectors
- AraProdieur
- · Replies 2 ·
Weight of the Earth on the moon?
- cosmic_tears
- · Replies 4 ·
Finding magnitudes of forces QR and PR in a statics problem
- CoasterGT
- · Replies 7 ·
Transformation between electric and magnetic fields
- loom91
- · Replies 4 ·
Finding the magnitude of vector A minus vector B
- AraProdieur
- · Replies 24 ·
Calculating Average Velocity in Time Intervals from a Position vs Time Graph
- jcsp101
- · Replies 15 ·
Two charged aluminum spheres: finding electrons removed for 1 ton force
- Gaupp
- · Replies 10 ·
How Does a Golf Ball Accelerate Upon Impact with Concrete?
- chaotixmonjuish
- · Replies 3 ·
Projectile motion and horizontal gun muzzle velocity
- myelevatorbeat
- · Replies 1 ·
Work done on thermal systems confusion
- Ichiru
- · Replies 2 ·
What Are the Units and Exponents in Basic Physics Equations?
- Catalyst333
- · Replies 3 ·
An elevator moving up and a bolt falling down
- chaotixmonjuish
- · Replies 2 ·
Minimum escape velocity of a projectile required to rise a certain height
- JFonseka
- · Replies 5 ·
Calculate Tension in Cables to Support Cantilever Beam
- sawaf
- · Replies 1 ·
Room temperature with fan heat at steady state
- a13x
- · Replies 6 ·
Difficult Problem I Tried My Best
- azila
- · Replies 16 ·
Gravitational Potential Energy of a bag
- Edwardo_Elric
- · Replies 13 ·
How to calculate fusion and fission yields in MeV for different elements
- Potaire
- · Replies 9 ·
Elevator Torque and Angular Momentum
- usnberry
- · Replies 1 ·
Electricity and Magnetism- Energy sources and power stations
- ThembaC
- · Replies 3 ·
Is mgh Always Applicable for Calculating Gravitational Potential Energy?
- BlackWyvern
- · Replies 2 ·
Finding position of third particle to double gravitational force
- sstudent1
- · Replies 9 ·
Can a particle accelerate without changing speed?
- sun.shine_willy
- · Replies 10 ·
What is the maximum speed achieved by a spaceship traveling to Moon Base I?
- azila
- · Replies 3 ·
Calculating Avg Speed of Round Trip: What's Wrong?
- camboguy
- · Replies 3 ·
What Is the Force Exerted by the Elbow on the Forearm?
- azila
- · Replies 3 ·
How Do You Calculate the Internal Resistance of a Thevenin Voltage Source?
- bengaltiger14
- · Replies 3 ·
Where should Q3 be placed so the net force on it is zero
- Winzer
- · Replies 37 ·
Calculating Maximum Height of Object Thrown Upward
- Yann
- · Replies 2 ·
Calculating Spiciness for 400 People: Jalapeno vs. Habanero
- josh84
- · Replies 3 ·
Finding the angle between two vectors from their cross product
- azila
- · Replies 4 ·
Hg in U-shape tube, water is added. final h Hg?
- locster314
- · Replies 1 ·
How Many Photons Do a Light Bulb and Microwave Emit Per Second?
- DieCommie
- · Replies 2 ·
Parallel plate capacitor and magnetic field
- phys01
- · Replies 4 ·
Determine the magnitude of the electric field
- William Bush
- · Replies 13 ·
Find the vector of the net Force
- xXmarkXx
- · Replies 8 ·
How Do You Calculate Projectile Trajectory in Physics Simulations?
- Blommestein
- · Replies 14 ·
Solving Car Overtaking Truck Problem
- azila
- · Replies 4 ·
How Do You Calculate the Phase of a Spherical Wave at Different Distances?
- aliaze1
- · Replies 1 ·
Force, mass, acceleration (three problems)
- niyati
- · Replies 1 ·
Minimum u to keep ladder from slipping
- Nikita23
- · Replies 3 ·
What is the average velocity of an object moving with a constant acceleration?
- josh84
- · Replies 3 ·
How far does a falling object travel in the second second of free fall?
- josh84
- · Replies 1 ·
Spring Constant Due to 2 Charges
- mrlucky0
- · Replies 6 ·
How to find the height where two same marbles have the same velocity?
- mwahx3
- · Replies 15 ·
Does height affect the constant of proportionality?
- mwahx3
- · Replies 11 ·
Net Force on Center Charge in Y-Direction in Square of Charges
- Winzer
- · Replies 43 ·
Block of ice sliding down inclined plane - final speed
- Edwardo_Elric
- · Replies 3 ·