Introductory Physics Homework Help Forum

Post thread
Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
PLEASE HELP How long will it take until the car's speed drops to 12.0 m/s?
  • DrSmiles
  • · Replies 1 ·
Replies
1
Views
4K
Why Is My Calculation on Rocket's Projectile Motion Incorrect?
  • biglank3
  • · Replies 1 ·
Replies
1
Views
3K
What Initial Speed Is Required for a Volleyball to Just Clear the Net?
  • trumnation
  • · Replies 5 ·
Replies
5
Views
7K
What Is the Path Length Difference for Light in a Double Slit Experiment?
  • Foxhound101
  • · Replies 1 ·
Replies
1
Views
22K
Spring and falling body problem
  • professor
  • · Replies 1 ·
Replies
1
Views
4K
Obtain y=mx+b equation for Atwood's Pulley lab.
  • Vasili
  • · Replies 5 ·
Replies
5
Views
11K
Help with some problems involving forces.
  • vdfortd
  • · Replies 4 ·
Replies
4
Views
4K
Distance Lifted by Car Suspensions in Earthquake
  • lany
  • · Replies 1 ·
Replies
1
Views
4K
How Does Charge Distribution Affect Electric Field Intensity at the Origin?
  • SilverGirl
  • · Replies 14 ·
Replies
14
Views
6K
Power up and incline with friction
  • Kajayacht
  • · Replies 5 ·
Replies
5
Views
7K
Newton's Laws, blocks of mass and string
  • crhscoog
  • · Replies 3 ·
Replies
3
Views
4K
Calculate Direction to Intercept Object in Vector Mechanics
  • research1
  • · Replies 2 ·
Replies
2
Views
1K
For what finite value of x is the electric field zero?
  • Calcguy
  • · Replies 1 ·
Replies
1
Views
3K
What is the Inclined Spring Problem?
  • fluidistic
  • · Replies 2 ·
Replies
2
Views
2K
What is the minimum velocity needed to maintain circular motion at point A?
  • fluidistic
  • · Replies 2 ·
Replies
2
Views
2K
Find the resultant in unit-vector notation
  • chanv1
  • · Replies 3 ·
Replies
3
Views
28K
How Do You Calculate the Resultant Vector and Its Angle?
  • kaylanp01
  • · Replies 6 ·
Replies
6
Views
2K
Angular Speed of Clock Minute Hand: Rad/s
  • mastiffcacher
  • · Replies 2 ·
Replies
2
Views
2K
Kinematics balloon problem help
  • Mitchtwitchita
  • · Replies 2 ·
Replies
2
Views
7K
Discover the Fascinating Effects of Gravity in Elevators | FAQ Answered
  • aleferesco
  • · Replies 6 ·
Replies
6
Views
3K
How Does the Angle Affect Cable Tension in a Tow Truck Scenario?
  • hofluff87
  • · Replies 2 ·
Replies
2
Views
8K
How Does Tension Vary Along a Rope in Motion?
  • lmlgrey
  • · Replies 6 ·
Replies
6
Views
3K
What Is the Fundamental Frequency of a Wire Under Modified Conditions?
  • hemetite
  • · Replies 3 ·
Replies
3
Views
4K
Tension Force problem involving friction
  • chimbooze
  • · Replies 5 ·
Replies
5
Views
18K
Fluid Dynamics Homework: Solving for Water Speed and Range in a Container
  • azure2s
  • · Replies 3 ·
Replies
3
Views
6K
Calculating Closest Approach Distance for Two Moving Protons
  • kdrobey
  • · Replies 16 ·
Replies
16
Views
16K
Tangential and radial train acceleration
  • -EquinoX-
  • · Replies 12 ·
Replies
12
Views
5K
How Do I Solve These Gravity-Related Physics Problems?
  • jbgibson
  • · Replies 4 ·
Replies
4
Views
3K
Calculating Distance and Size of Image on Blackboard Reading
  • thompson.1674
  • · Replies 2 ·
Replies
2
Views
7K
Solving a Quick Physics Problem: Finding Speed, Deceleration, and Distance
  • Rade1990
  • · Replies 8 ·
Replies
8
Views
3K
Determining Wind Velocity From Light Plane Flight
  • mikenash
  • · Replies 1 ·
Replies
1
Views
2K
Need help with Tangential Acceleration
  • eyvhgi557r
  • · Replies 3 ·
Replies
3
Views
3K
Calculating Original Mass of Ice at 0 Degrees C
  • sanphy
  • · Replies 5 ·
Replies
5
Views
2K
What is the Critical Value of Friction for a System of Blocks to Move Together?
  • rwx1606
  • · Replies 4 ·
Replies
4
Views
2K
Magnetic Force on a Moving Charge
  • GodxIsInTheTV
  • · Replies 1 ·
Replies
1
Views
2K
Solving Electric Field & Potential of Infinitely Long Rod
  • germx3
  • · Replies 2 ·
Replies
2
Views
5K
Having a hard time solving last part
  • mikenash
  • · Replies 1 ·
Replies
1
Views
3K
Tension/ Force problem; How should I look at this?
  • kleencut
  • · Replies 4 ·
Replies
4
Views
34K
Solving for Velocity of Spring-Supported Mass
  • CaptainSFS
  • · Replies 4 ·
Replies
4
Views
2K
I have tryed this problem 40 times and cant solve the last 2 parts
  • mikenash
  • · Replies 1 ·
Replies
1
Views
2K
Solving for the Changing Magnetic Field in a Conducting Loop
  • Lance WIlliam
  • · Replies 4 ·
Replies
4
Views
8K
Launching Blocks up Ramps- Velocity and Height
  • Phoenixtears
  • · Replies 2 ·
Replies
2
Views
3K
Calculating conductivity of the cell interior and the blood
  • Kathi201
  • · Replies 1 ·
Replies
1
Views
3K
A particle's position relative to time
  • candycooke
  • · Replies 1 ·
Replies
1
Views
4K
Why Are My Electric Field Components Incorrect?
  • gnarkil
  • · Replies 10 ·
Replies
10
Views
3K
How Does Mass Affect Acceleration on a Frictionless Surface?
  • a18c18
  • · Replies 1 ·
Replies
1
Views
3K
Understanding the Chain Rule in Mechanics: Solving for Acceleration and Force
  • AshesToFeonix
  • · Replies 3 ·
Replies
3
Views
3K
Projectile Motion Calculation Question
  • minifhncc
  • · Replies 2 ·
Replies
2
Views
2K
Solve Physics Homework: Car Stopping Distance
  • rmax58
  • · Replies 5 ·
Replies
5
Views
4K
How Do You Apply Power Series to Evaluate Functions and Estimate Errors?
  • kreil
  • · Replies 5 ·
Replies
5
Views
3K
Unit analysis help (possible significant figure error?)
  • mbisCool
  • · Replies 1 ·
Replies
1
Views
4K
Kinetics Question (Dependant motion, gravity, pulleys)
  • dontdisturbmycircles
  • · Replies 3 ·
Replies
3
Views
4K
Are these even possible? (Friction Related)
  • bassboy
  • · Replies 1 ·
Replies
1
Views
2K
Understanding Force Problems: Comparing Forces on Driver and Passenger
  • jcumby
  • · Replies 1 ·
Replies
1
Views
5K
Carnot engines and refrigerators
  • emperrotta
  • · Replies 4 ·
Replies
4
Views
3K
Is 1.875×10^8 m/s² the Correct Acceleration for the Electron in the TV Tube?
  • kleencut
  • · Replies 2 ·
Replies
2
Views
14K
How can I convert from CFM to air speed for wind generation?
  • RyanVellia
  • · Replies 3 ·
Replies
3
Views
6K
What are the equations and steps to solve these two problems?
  • da5id2
  • · Replies 2 ·
Replies
2
Views
5K
Force in a magnetic field. Need help using the equation
  • crh
  • · Replies 1 ·
Replies
1
Views
3K
Solving a Quick Force Problem: Finding Acceleration in an Elevator
  • joe215
  • · Replies 3 ·
Replies
3
Views
2K
Projectile Motion of a Helicopter: Solving for Speed with a Falling Wheel
  • Mitchtwitchita
  • · Replies 4 ·
Replies
4
Views
17K
2 blocks, frictions, and no numbers
  • musicfairy
  • · Replies 9 ·
Replies
9
Views
5K
How Far Will M1 Travel in 0.809 Seconds in a Pulley System?
  • XxBollWeevilx
  • · Replies 6 ·
Replies
6
Views
6K
Pendulum and Oscillating Motion
  • JJones_86
  • · Replies 7 ·
Replies
7
Views
3K
Ridiculously simple acceleration and velocity vectors, but I can't get them
  • soggybread
  • · Replies 1 ·
Replies
1
Views
15K
What is the Period of the Hubble Space Telescope's Orbit?
  • JJones_86
  • · Replies 16 ·
Replies
16
Views
9K
What are the solutions to these work and energy problems?
  • losthelp
  • · Replies 1 ·
Replies
1
Views
2K
Now it is a simple matter to find the current in each of the resistors.
  • hobo skinoski
  • · Replies 3 ·
Replies
3
Views
17K
What is the maximum speed an object can have without breaking a hanging string?
  • Husker70
  • · Replies 6 ·
Replies
6
Views
3K
Banked Curves angle theta on highway
  • pstfleur
  • · Replies 8 ·
Replies
8
Views
8K
Find the tension in the hitch when a car is towing a trailer
  • lalalah
  • · Replies 3 ·
Replies
3
Views
8K
Rate of magnetic field change of a selnoid
  • Lance WIlliam
  • · Replies 3 ·
Replies
3
Views
8K
Conservation of Mechanical Energy and Centripetal Acceleration Problem
  • ctpengage
  • · Replies 4 ·
Replies
4
Views
8K
Solving a Physics Problem: Transverse Wave Travel Time
  • lmar769
  • · Replies 1 ·
Replies
1
Views
2K
Understanding Forces and Velocity for an Object in a Curved Path
  • toughguy738
  • · Replies 3 ·
Replies
3
Views
3K
Coulomb's Law Problem- Why is this incorrect?
  • bcjochim07
  • · Replies 7 ·
Replies
7
Views
40K
Question about Kinetic Friction
  • Physics197
  • · Replies 5 ·
Replies
5
Views
1K
Find Time in Physics: Ramp, Piano & Moving Van
  • karasis
  • · Replies 1 ·
Replies
1
Views
4K
Safe Speed for Icy Curve: 130m Radius, 2.7 Banking
  • JJones_86
  • · Replies 1 ·
Replies
1
Views
2K
Using a pulley to raise yourself?
  • abcdefj
  • · Replies 4 ·
Replies
4
Views
9K
Parallel plate capacitor problem
  • strawberrysk8
  • · Replies 3 ·
Replies
3
Views
2K
Solving Circular Motion Help Homework: Find Speeds & Apparent Weight
  • Santorican
  • · Replies 3 ·
Replies
3
Views
6K
What Do y vs. t and v vs. t Graphs Show for an Object Thrown Upward?
  • Mitchtwitchita
  • · Replies 3 ·
Replies
3
Views
2K
Physics word problem- velocity, acceleration, time
  • meredith
  • · Replies 9 ·
Replies
9
Views
29K
Throwing a Ball: Find Max Vertical Distance
  • chanv1
  • · Replies 8 ·
Replies
8
Views
7K
Entropy of an adiabatic process
  • luna02525
  • · Replies 1 ·
Replies
1
Views
23K
Confused - How do I find the static and kinetic friction coefficient?
  • Lida
  • · Replies 2 ·
Replies
2
Views
10K
Normal Force Ramps: Solving m's Motion Problem
  • nothilaryy
  • · Replies 2 ·
Replies
2
Views
3K
Magnitude of en electric field and electrostatic field
  • katrascythe
  • · Replies 9 ·
Replies
9
Views
5K
Will someone check my application of kepler's laws?
  • imsoconfused
  • · Replies 1 ·
Replies
1
Views
5K
Scientific Notation I feel dumb for even asking
  • mcknia07
  • · Replies 3 ·
Replies
3
Views
6K
What Is the Person's Resultant Displacement After the Walk?
  • chanv1
  • · Replies 3 ·
Replies
3
Views
8K
Object Thrown Upward: Max Momentum & Equilibrium
  • garva1
  • · Replies 25 ·
Replies
25
Views
4K
Unwinding Cylinder-Dynamics problem
  • wuuzupfoo
  • · Replies 5 ·
Replies
5
Views
58K
Would the y vs. t plot look like a parabola?
  • Mitchtwitchita
  • · Replies 2 ·
Replies
2
Views
2K
How Is Tension Calculated in an Atwood Machine with Equal Masses?
  • darealprince
  • · Replies 3 ·
Replies
3
Views
4K
A 2.5 kg block and a 3.1 kg block slide down a 30 degree incline.
  • goaliejoe35
  • · Replies 10 ·
Replies
10
Views
6K
Finding Center of Mass for Composite Shapes
  • Darkalyan
  • · Replies 3 ·
Replies
3
Views
5K
Calculate Moment About Point A - 3 Methods to Solve
  • asa.hoshi
  • · Replies 1 ·
Replies
1
Views
2K
Parallel Plate Capacitor (work and potential difference)
  • jrzygrl
  • · Replies 6 ·
Replies
6
Views
11K