Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Rocket fired upward with engine thrust then free fall
- elizabethg
- · Replies 11 ·
How long for a cop to catch a crook driving at 85 mph?
- epeake
- · Replies 7 ·
What is the correct direction for the explorer's displacement to return home?
- Whatupdoc
- · Replies 15 ·
Point charges on square - find magnitude of force
- pringless
- · Replies 20 ·
How do I calculate the average velocity of a Honda Civic traveling along a road?
- COCoNuT
- · Replies 14 ·
Complex Number-how to show it ?
- scoutfai
- · Replies 4 ·
What are the dimensionally consistent powers in the expression v = a^p * t^q?
- tony873004
- · Replies 10 ·
Solving cos^-1 (3/7): Exact Trigonometric Values and Techniques
- courtrigrad
- · Replies 4 ·
Help with textbook exercises for next week test
- kelvintc
- · Replies 54 ·
Thrown ball velocity and acceleration
- spdrxc
- · Replies 3 ·
What is the electric flux through the rectangle
- spatel600
- · Replies 2 ·
How Do You Calculate Moles and RMS Speed in Ideal Gas Problems?
- Auron87
- · Replies 2 ·
Calculating Induced e.m.f and Power in a Perpendicular Coil
- islandguy
- · Replies 4 ·
What single chip can be used to replace an AND gate in a circuit?
- paul11273
- · Replies 8 ·
Instantaneous velocity animation
- Whatupdoc
- · Replies 6 ·
Test rocket acceleration physics problem
- elizabethg
- · Replies 3 ·
Kinematics bowling ball problem
- physicsss
- · Replies 4 ·
What is the force at 18 degrees in a charged ball suspension problem?
- physicsuser
- · Replies 2 ·
How Do You Calculate the Uncertainty in Physical Measurements?
- physicsss
- · Replies 11 ·
Solving the Salmon Jump Problem: How High Can it Go?
- Hollyleelee
- · Replies 2 ·
Point charge in an electric field
- jimithing
- · Replies 11 ·
Solve Simple Velocity Problem: Understanding Integration and Momentum
- teclo
- · Replies 4 ·
Building a safe Tesla coil for a school science fair
- Shay10825
- · Replies 6 ·
Simplifying Combinatorics: Proving nC(k-1) + nCk = (n+1)Ck for k>0
- courtrigrad
- · Replies 2 ·
What does this experiment show?
- Topher
- · Replies 2 ·
What is the concept of Gauss' physical law?
- galipop
- · Replies 2 ·
How to Integrate \frac{\sqrt{x+1}}{x+3} dx with a Suitable Substitution?
- Ethereal
- · Replies 3 ·
Finding the Direction of a Plane's Emergency Landing Using Trigonometry
- COCoNuT
- · Replies 24 ·
Find Resoance Frequency for Electric Motor Mass of 100 kg
- bullet_ballet
- · Replies 4 ·
Solving Hexane Condensation Problem: Flow Rate & Recovery
- jimithing
- · Replies 2 ·
What is the magnitude of the velocity vector at time t = 8.3 s?
- SMS
- · Replies 3 ·
Oil slick diameter and bowling ball speed
- lmf22
- · Replies 3 ·
Bullet penetration, ball thrown upward, and gravity on strange planet
- SJC25
- · Replies 2 ·
Electric Potential in a Region: Is it Zero or Nonzero?
- GreenDinos
- · Replies 2 ·
An electron moving across capacitor
- spatel600
- · Replies 8 ·
Tackling a Tough Physics Problem: Proton's Turning Point
- spatel600
- · Replies 5 ·
Max Angle for Increasing Distance Projectile
- ExtravagantDreams
- · Replies 13 ·
How did Newton derive the inverse square law of gravitation?
- scoutfai
- · Replies 15 ·
Solving the differential equation f'(x) + ((1-2x)/x²)y = 1
- Cyannaca
- · Replies 5 ·
Is Courant's Differential and Integral Calculus suitable for AP Calculus AB and BC?
- courtrigrad
- · Replies 2 ·
Finding Distance Moved by Swapping Positions of Two Masses on Boat
- dibilo
- · Replies 2 ·
Derivative with respect to time ?
- ddoerr
- · Replies 3 ·
Calculating Basketball Player's Hang Time
- Webb
- · Replies 5 ·
Ball hit at angle on inclined hill, maximize horizontal distance
- asourpatchkid
- · Replies 5 ·
Physics I should be able to do
- JonF
- · Replies 12 ·
What are the confusing questions about structural I beams and cones?
- rumaithya
- · Replies 3 ·
Calculating Edith's Average Velocity in a Relay Race
- Whatupdoc
- · Replies 3 ·
Linear Speed of Object on Earth Surface at 62.0 Degrees Angle
- Eleet
- · Replies 4 ·
How can you determine the net force of a bottle
- Gmaximus
- · Replies 3 ·
Conducting sphere in a conducting spherical shell
- GreenDinos
- · Replies 2 ·
Initial Speed of Ball Thrown Horizontally from 15.75m Height
- Eleet
- · Replies 8 ·
Calculating Force in Parallel Conductors
- voormann
- · Replies 4 ·
Maths or physics Interception question
- High_flier
- · Replies 2 ·
How Do You Calculate Electrostatic and Gravitational Forces in a Helium Ion?
- psruler
- · Replies 10 ·
Will expansion increases potential energy?
- no idea
- · Replies 2 ·
How Does Liquid Volume Affect Pressure and Flow Rate?
- ConceptuallyInept
- · Replies 2 ·
One dimensional motion magnitude
- SMS
- · Replies 6 ·
How do you add velocity vectors together?
- Eleet
- · Replies 9 ·
How Do You Convert Air Weight from Newtons to Pounds?
- kdk41085
- · Replies 10 ·
How Do You Calculate Acceleration from Velocity?
- Shay10825
- · Replies 16 ·
Equal Pressure in Efflux: Understanding Fluid Dynamics in a Tank
- suffian
- · Replies 2 ·
Solving Box & Ramp Problem at 50° Angle
- mrjeffy321
- · Replies 10 ·
How to Calculate Moment of Inertia for Composite Objects?
- Gmaximus
- · Replies 10 ·
Calculating Horizontal Distance of Ball Bearing with Mass 11.0 g
- SMS
- · Replies 4 ·
How do you design a bridge with these materials?
- davedj23
- · Replies 3 ·
Steps to solve Projectile problem
- GWelch
- · Replies 8 ·
How Far Should the Rescue Crew Fly to Reach the Plane?
- COCoNuT
- · Replies 4 ·
Trouble with Notation in Vector Analysis
- ExtravagantDreams
- · Replies 4 ·
How Much Rubber Enters the Atmosphere from Tire Wear in the U.S. Annually?
- Anamoly
- · Replies 2 ·
Find the direction of vector A+B with given components
- Whatupdoc
- · Replies 8 ·
Relativistic Lagrangian -> Hamiltonian
- Igor_S
- · Replies 2 ·
Flowerpot height from time visible in window
- teknodude
- · Replies 2 ·
Dimensional analysis and frequency
- jewilki1
- · Replies 2 ·
Center of Gravity, Non-Uniform Bar
- JasonRox
- · Replies 2 ·
What is the difference between empirical and fundamental laws in physics?
- arwen^undomiel
- · Replies 6 ·
How can I solve this free fall problem with missing variables?
- pinky2468
- · Replies 8 ·
Mars Climate Orbiter probe crashed into the surface of Mars
- Whatupdoc
- · Replies 2 ·
Investigatory project in physics
- nyita
- · Replies 27 ·
Baseball Projectile Motion Problem
- NoPhysicsGenius
- · Replies 5 ·
Trouble Solving Relative Velocity in 2-D?
- NoPhysicsGenius
- · Replies 5 ·
How Is Mass Calculated from Specific Heat?
- Zorodius
- · Replies 3 ·
Electric Potential, acceleration and velocity
- Brianjw
- · Replies 8 ·
Why Doesn't f(x + Δx) Approach f(x) as Δx Approaches 0 in Limits?
- haribol
- · Replies 4 ·
Projectile in Motion: horizontal
- khai06
- · Replies 3 ·
Electric Problem: Charges Drawn to Uncharged Metal Rod
- Physicsisfun2005
- · Replies 3 ·
Find the quadrant where sin Ø > 0 and cos Ø < 0
- Poweranimals
- · Replies 6 ·
What is the speed of the new steamship?
- NickyuTse
- · Replies 5 ·
Solving Acceleration Problems in a Sports Car Rally
- Manbe
- · Replies 3 ·
Calculating the Density of Wood with Archimedes' Question
- jimithing
- · Replies 5 ·
How much force did the rock exert on my head?
- pneumoped
- · Replies 3 ·
Convert octal to hex, w/out converting to Binary
- dk702
- · Replies 2 ·
Maximum force and height for bone fracture using Young's modulus
- alonzo
- · Replies 2 ·
Help with an electricity physics problem
- Zurtex
- · Replies 4 ·
How Do You Calculate Atomic Plane Spacing in a Cleaved Crystal?
- bang911
- · Replies 5 ·
Three quizzes from our exam(junior middle school grade 3)
- NickyuTse
- · Replies 20 ·
Solving Drive Train Problem with Friction Coefficient of 0.3
- ee7klt
- · Replies 2 ·
What Factors Affect the Period of a Simple Pendulum?
- chapz
- · Replies 11 ·
Is it possible to 'disappear into thin air'?
- Shyla
- · Replies 6 ·
How Do Nitrogen Molecules Separate When Changing From Liquid to Gas?
- JasonRox
- · Replies 7 ·
How Can I Finish Integrating a Natural Log Using Integration by Parts?
- krusty the clown
- · Replies 6 ·