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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Vector Addition for Displacement: Finding Magnitude and Direction
- alandry06
- · Replies 7 ·
How Do You Calculate the Mass Difference Between Two Planets Based on Gravity?
- kasiu
- · Replies 14 ·
Is this the average velocity of the car?
- Icefire10304
- · Replies 13 ·
How Do You Calculate an Astronaut's Weight Ratio from Moon to Earth?
- BuBbLeS01
- · Replies 7 ·
Tension and compression in rigid bars
- mpassman
- · Replies 3 ·
Circular Plate Tension Question
- jedisoccer
- · Replies 20 ·
Derive Linear Momentum: m2(D-c)/(m1+m2)
- ingrida1
- · Replies 1 ·
Calculating Minimum & Maximum Speed for an Icy Curve
- physicsgirlie26
- · Replies 1 ·
Why Is Coulomb's Law Not Working in My Calculation?
- mujadeo
- · Replies 1 ·
Velocity with air resistance help
- PHK
- · Replies 9 ·
Potential Energy Function problem ()
- ccsmarty
- · Replies 3 ·
Position Barlow Lens for 3x Image w/ Focal Length -0.05m
- recon9
- · Replies 1 ·
Calculating Tension Forces in a Frictionless Pulley System
- Destrio
- · Replies 12 ·
How Do You Calculate Tension in a String Connecting Two Blocks on a Ramp?
- shell4987
- · Replies 1 ·
Calculating Centripetal Acceleration & Time in Supersonic Airplane Turn
- BuBbLeS01
- · Replies 7 ·
What is the Velocity When a Ball Hits the Ground?
- thedram
- · Replies 1 ·
How to Solve a Coupled Motion Pulley Problem with Two Masses of Equal Weight?
- johnsonandrew
- · Replies 4 ·
Horizontal projectile problem(revised)
- mastershake15
- · Replies 15 ·
Test on monday (banked road problem)
- jrmed13
- · Replies 1 ·
Spring Potential Energy involving two springs
- kdm06
- · Replies 2 ·
How Do You Calculate the Components of Vector C?
- princessfrost
- · Replies 1 ·
Velocity and acceleration of a runner
- MeganH
- · Replies 3 ·
Solving a 135 N Vertical Force Problem
- lilbilly
- · Replies 5 ·
Kinetic Energy and friction problem
- Zerobu
- · Replies 1 ·
Finding Distance of Two Runners with Velocity and Acceleration | Help Needed
- MeganH
- · Replies 1 ·
When calculating escape speed why is v_f =0
- Saladsamurai
- · Replies 4 ·
How much time does the blood take to reach its final velocity?
- veena
- · Replies 2 ·
Calculating the Net Force Acting on a 2.75 kg Object
- tarzanna
- · Replies 3 ·
What was his velocity when he began accelerating ?
- veena
- · Replies 3 ·
Force on an object in circular motion
- BuBbLeS01
- · Replies 13 ·
How to Solve Horizontal Projectile Questions?
- mastershake15
- · Replies 1 ·
Calculating Energy and Friction in a Child's Descent on a 6m Slide
- ZAMM
- · Replies 12 ·
Calculating Work and Force: A Factory Worker's Challenge Solved!
- physicsgirlie26
- · Replies 18 ·
How Do You Solve the Projectile Motion Equations for Two Objects?
- graten2go
- · Replies 2 ·
Electric Field due to a Charged Cylinder
- PFStudent
- · Replies 9 ·
A baseball is thrown straight up with initial speed
- bugbug
- · Replies 1 ·
Understanding Goodness of Fit for Best-Fit Lines on Graphs
- MIA6
- · Replies 3 ·
What Is the Cruising Speed of the Car and the Orbital Speed of the Satellite?
- rgitelman
- · Replies 1 ·
How Do You Calculate the Net Force on a Ball in Flight?
- Panzer22
- · Replies 3 ·
Maximum Speed for Successful Roller Coaster Hill Climb
- shell4987
- · Replies 6 ·
Calculating Horizontal Distance Traveled by a Thrown Ball
- wiskeywiz
- · Replies 3 ·
Free Body Diagrams & Newton's Law Pairs For a 4-Link Chain
- aligass2004
- · Replies 1 ·
Calculating Acceleration of Blocks on a Ramp
- shell4987
- · Replies 3 ·
Calculating Net External Force for a Cheetah's Acceleration
- bigtymer8700
- · Replies 4 ·
How Is the X-Component of a Vector Determined Using Sine?
- stunning
- · Replies 8 ·
Is Normal Force Always Equal to Weight? | Simple Physics Problem
- Noor123
- · Replies 1 ·
Tension and Angles of Frame on Wall
- Heat
- · Replies 8 ·
How Much Force Compresses a Spring Between Two Crates on a Frictionless Surface?
- saman_b21
- · Replies 3 ·
Drawing Free-Body Diagrams: Rock Suspended by Two Strings
- fiziksfun
- · Replies 2 ·
Help with statics question please.
- scotthands
- · Replies 16 ·
How Fast Must a Basketball Player Jump to Reach 85.8 cm?
- adad22
- · Replies 1 ·
Deceleration of a vehicle problem
- Probie
- · Replies 5 ·
Calculate the tension in the string
- ssj
- · Replies 67 ·
Dealing with mass, acceleration and velocity
- bree
- · Replies 2 ·
What is the Frequency of an Alternating Current with a Sin Curve?
- JBemp
- · Replies 3 ·
What was the plane's speed when the bottle was released?
- onigiri
- · Replies 5 ·
Solving Irreversible Processes: Q-W=U2-U1
- Dili
- · Replies 5 ·
How Do You Calculate Tension and Acceleration in a Two-Crate System?
- ~christina~
- · Replies 6 ·
What Forces Act on a Roller-Coaster Car in Nonuniform Circular Motion?
- afterjames
- · Replies 1 ·
Projectile motion tennis ball problem
- mxer101
- · Replies 2 ·
AC Source/ Variable Resistance
- americanforest
- · Replies 8 ·
Solve Machine Problems: Find Acceleration for Each Machine
- Leo194
- · Replies 1 ·
Finding the distance modulus and the absolute magnitude
- Benzoate
- · Replies 2 ·
What Physics Principles Determine When a Box Slips on a Ramp?
- physicsgirlie26
- · Replies 1 ·
What is the mass of block on the left?
- aligass2004
- · Replies 6 ·
Solving Banked Road Problem with Car Speeds of 48 km/h
- Bernie Hunt
- · Replies 4 ·
Resolving Forces: Find Magnitude & Angle w/ Ox
- CathyLou
- · Replies 3 ·
How Do I Express the Spring Constant with Significant Figures?
- mircobot
- · Replies 2 ·
Help Calculate Net Electric Force on Particle 3
- UNG
- · Replies 2 ·
Differentiation woes with temperature/entropy relations.
- EricVT
- · Replies 3 ·
Force and Tension Homework: F, Rope 1 & 2 Tension
- aligass2004
- · Replies 21 ·
Can someone Equilibrium/friction
- mslena79
- · Replies 5 ·
Stretch of Vertical Spring: Oscillating at 5.87 Hz
- yuvlevental
- · Replies 1 ·
How much force does the 4kg block exert on the 6kg block?
- aligass2004
- · Replies 4 ·
What is the acceleration of a moving crate with two forces acting on it?
- flash21
- · Replies 1 ·
With what minimum speed does the ball need to be hit with to go over the net
- ~christina~
- · Replies 7 ·
How Do You Calculate Image Distance with Magnification in a Converging Lens?
- ben488
- · Replies 4 ·
How High Must a Rocket Travel for Its Weight to Be 0.4 Times Its Surface Weight?
- ahsanmhamid
- · Replies 2 ·
Calculate combined apparent magnitude of two stars
- Benzoate
- · Replies 4 ·
The brightness of a variable star
- Benzoate
- · Replies 4 ·
Understanding Vector Addition Using Unit Vectors and Magnitude and Direction
- ~christina~
- · Replies 19 ·
Finding acceleration and displacement on a velocity vs time graph
- xCanx
- · Replies 3 ·
Really Simple Magnitude Question
- Heat
- · Replies 3 ·
Have part 1 of problem stuck on part 2. help
- BlinkBunnie069
- · Replies 2 ·
What Is the Correct Coefficient of Friction Calculation?
- anglum
- · Replies 4 ·
Comparing Currents: Two Wire Comparison Homework
- Winzer
- · Replies 2 ·
Simple Tension Question 1: Finding Forces and Direction with Two Rigid Rods
- mpassman
- · Replies 8 ·
Mechanics/Projectiles/Angles/Trig. Identities?
- JamieB2
- · Replies 1 ·
How Does Friction Impact Crate Movement on a Rough Surface?
- fubag
- · Replies 6 ·
What is the position-vs-time graph for a falling object?
- HeLLz aNgeL
- · Replies 13 ·
Effective Ways to Study Mechanical Physics: Your Feedback Needed!
- Asker
- · Replies 1 ·
What Equations Calculate Thermal Radiation and Wavelength Peak Intensity?
- Gh0stman
- · Replies 1 ·
Understanding the Simple Pendulum: Confusion in Lab and How to Solve It"
- MissMoon
- · Replies 4 ·
A climber throws 2 stones 1.00s apart and they hit at the same time
- ~christina~
- · Replies 11 ·
How Do Static and Kinetic Friction Compare in Physics Experiments?
- jellybeansies
- · Replies 1 ·
Pulley Problem / Coupled Motion Question
- johnsonandrew
- · Replies 3 ·
Tension Problem x and y components?
- Span
- · Replies 3 ·
2 particles moving along x axis.
- ~christina~
- · Replies 5 ·
Solving Kinetic Friction: Baseball Player Sliding Into Third Base
- Cassie
- · Replies 26 ·
Acceleration of free falling object on another planet
- ~christina~
- · Replies 9 ·