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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Is My Spaghetti Bridge Design Ideal for Maximum Weight Support?
- Marghk
- · Replies 3 ·
How Can Two Different Resistances Dissipate the Same Power?
- eniluap
- · Replies 6 ·
What is the speed of the sports car at the second marker?
- miamiheat5
- · Replies 1 ·
Calculating Work Done by Variable Force on a Frictionless Semicircular Surface
- Peach
- · Replies 17 ·
Rocket with Variable Mass and Air Resistance.
- holdenthefuries
- · Replies 2 ·
How Deep Is the Lake After Dropping a Ball from 30 Meters?
- miamiheat5
- · Replies 1 ·
What is the Time and Final Velocity of a Stone Thrown from a Cliff?
- miamiheat5
- · Replies 2 ·
Car traveling north then east: displacement, speed, velocity
- miamiheat5
- · Replies 1 ·
How Do You Calculate Displacement and Acceleration in a Kinematics Car Problem?
- miamiheat5
- · Replies 2 ·
What is the stopping distance of the car?
- miamiheat5
- · Replies 2 ·
Tangential Acceleration of park ride
- Peach
- · Replies 10 ·
Sound intensity at 25 m is 25 dB; how close for 80 dB?
- MrButtPutts
- · Replies 2 ·
Circular motion with a string with weight
- giggidygigg
- · Replies 2 ·
Climber hanging from a cliff and acceleration
- cardhouse42
- · Replies 3 ·
What Is the Probability of Two Random Walkers Meeting Again After N Steps?
- bigplanet401
- · Replies 1 ·
Solve for Smallest Theta for Slider to Reach A
- stinlin
- · Replies 2 ·
Force on a current-carrying rod
- Dart82
- · Replies 9 ·
Finding angle of net electric force using arctan(Fy/Fx)
- BunDa4Th
- · Replies 4 ·
How Is Momentum Conserved in an Inelastic Collision When Both Vehicles Stop?
- pivoxa15
- · Replies 8 ·
Coefficient of Kinetic Friction on an Incline
- graywolf27
- · Replies 5 ·
Unit for Gravitational Attraction Between Objects?
- Thrawn
- · Replies 4 ·
Coulomb force magnitude calculations with three charges
- BunDa4Th
- · Replies 5 ·
Kirchhoff's rules with three batteries in series
- rgo
- · Replies 3 ·
Distance between two electrons where electric force balances gravity
- BunDa4Th
- · Replies 6 ·
Frictional force on a 15-N cart in a jet cruising at constant velocity
- Peterson
- · Replies 25 ·
Calculating Energy Needed to Fill a 100ft Round Tank with Gasoline
- mellbee
- · Replies 5 ·
Solving Vector Measurement Concerns in Lab
- Agent
- · Replies 1 ·
Solve for θ to get the angle of the hill.
- ludakrishna
- · Replies 6 ·
Calculating Impulse and Momentum for a Dump Truck
- ludakrishna
- · Replies 4 ·
Calculating Detection Distance of Superconducting Gravity Meter
- Gammage
- · Replies 5 ·
Compute the tangential acceleration
- cycam
- · Replies 2 ·
Tension in a chin strap producing 5 N upward force
- Elkay
- · Replies 5 ·
Question regarding average velocity
- missequivocal
- · Replies 1 ·
Why do space shuttles need escape velocity for short trips to Mars or the moon?
- blackcat
- · Replies 5 ·
What am I doing wrong in calculating the capacitance of an air-filled capacitor?
- AdKo
- · Replies 10 ·
Potential Difference of Capacitors
- AdKo
- · Replies 2 ·
Projectile Motion of a Jet Fighter: Calculating Velocity, Energy, and Power
- JamalJenkins
- · Replies 2 ·
Spring constant and maximum acceleration
- cgward
- · Replies 3 ·
Net electrostatic forces on three collinear charged balls
- pugfug90
- · Replies 5 ·
Frictional Force 2: Find Coefficient of Kinetic Friction on Ice
- Peterson
- · Replies 31 ·
Block going up frictionless incline
- cycam
- · Replies 19 ·
Weightlessness while in the air
- Annubes
- · Replies 1 ·
Grav. Force - Mass of an object
- ecthelion4
- · Replies 5 ·
Calculating Frictional Work for Slowing Down a Car
- ecthelion4
- · Replies 2 ·
How Fast and at What Angle Must a Daredevil Jump to Cross a Canyon?
- Dan66Stang
- · Replies 3 ·
Work done by force F = bx³ from x = 0 to x = 2.2 m
- ecthelion4
- · Replies 4 ·
Find Height at 0.5v Velocity for Projectile
- Peach
- · Replies 2 ·
Newton's Second Law and car acceleration
- Annubes
- · Replies 3 ·
What is the speed of the ball 10.0 sec later?
- Peterson
- · Replies 15 ·
Questions about the ideal gas law - thermodynamics
- dealz
- · Replies 1 ·
Keys dropped from a Ferris wheel at 45° and three-quarters height
- Coastal
- · Replies 9 ·
Eclipsing binary system with 1 year period: magnitude and separation
- Soylentgreen
- · Replies 1 ·
Collision in 2 dimensions (Momentum)
- MattsVai
- · Replies 4 ·
How Far Will a Car Travel Up a Hill After Running Out of Gas?
- geejodi
- · Replies 16 ·
Apparently simple canoe problem - or not?
- pivoxa15
- · Replies 10 ·
Constructive/Destructive Interference Problem.
- asd1249jf
- · Replies 10 ·
Coulomb potential barrier calculation and fm units
- chemart
- · Replies 1 ·
Two charged spheres suspended from a point repel 24cm apart
- pugfug90
- · Replies 5 ·
Is the E Field Direction Downward for a Ring with Continuous Polarization?
- O.J.
- · Replies 1 ·
Calculating Internal Energy Loss from Friction in Satellite Fall
- brunie
- · Replies 4 ·
Pulley Question - Are the axes wrong?
- cipotilla
- · Replies 6 ·
What is the speed of sound at this temperature?
- rachelle
- · Replies 1 ·
Solving Final Image Formed from Convex and Concave Lens
- Brewer
- · Replies 9 ·
How Do You Calculate Distance Traveled Using a Speed/Time Graph?
- Trail_Builder
- · Replies 5 ·
Calculate Perigee Apogee Ratio for Satellite in Earth's Orbit
- brunie
- · Replies 12 ·
Finding Minimum Separation of Object and Image in a Converging Lens
- Brewer
- · Replies 10 ·
What Is the Plane's Acceleration Based on Pendulum Shift?
- skiracer88_00
- · Replies 1 ·
Potential difference between points in a parallel plate capacitor
- Kaoi
- · Replies 1 ·
Average velocity vector question. Try again
- Saladsamurai
- · Replies 8 ·
Why are all equipotential line voltages positive in dipole lab?
- cy19861126
- · Replies 1 ·
Ferry crossing a river at angle to current
- pivoxa15
- · Replies 5 ·
Change in Pendulum's Period with temperature.
- rmorelan
- · Replies 2 ·
Temperature Dependence on Pressure Change in Gases
- MMD
- · Replies 10 ·
How Do You Calculate Particle Kinetics and Potential Energy Changes?
- brunie
- · Replies 27 ·
Two masses connected via pulley: find acceleration
- pivoxa15
- · Replies 2 ·
What is the electric field strength at the center of the triangle?
- Mozart
- · Replies 3 ·
Force between two blocks pushed by 12N
- Weave
- · Replies 13 ·
Projectile on a 15° slope with 60° launch angle
- martine80
- · Replies 9 ·
The net force on a moving positive charge
- Dart82
- · Replies 7 ·
Magnetic Field with Time Dependence
- deenuh20
- · Replies 8 ·
Wheel Rotation: Vertical or Horizontal?
- majstro
- · Replies 6 ·
Identifying Stress in Three Rods: A Practical Approach
- stinlin
- · Replies 3 ·
How to Make a Capacitator Using Aluminum Foil and Wax Paper?
- aquabum619
- · Replies 9 ·
How Fast Should a Rock Be Thrown to Hit a Runner at 93 Yards?
- Aggie
- · Replies 9 ·
How can we effectively solve problems involving concave parabolic mirrors?
- SkyFlyer
- · Replies 3 ·
How High to Aim Above a Target to Correct for Gravity?
- Aggie
- · Replies 6 ·
What type of spectrum does a heated rock emit?
- aerogurl2
- · Replies 3 ·
How I can get the Velocity from knowing the distance
- enigmaticprefac
- · Replies 9 ·
How Many Trips Does a Bird Make Between Two Trains Before Getting Sandwiched?
- Rainbow
- · Replies 3 ·
Heat removed from a gas in a cylinder
- Jared944
- · Replies 1 ·
What Initial Velocity Ensures a Glass Slides Off a Table with Coulomb Friction?
- kristiakemi
- · Replies 6 ·
Circular Motion Problem: Downy Ball in Rotating Washing Machine
- irvine752
- · Replies 1 ·
Ship displacement with lighthouse bearing N27E
- pivoxa15
- · Replies 5 ·
Does Redshift Indicate Mutual Movement Between Distant Galaxies?
- aerogurl2
- · Replies 1 ·
What are the tensions in the strings for a rotating object?
- tnhoots
- · Replies 8 ·
Infinite resistance of a Voltmeter
- shehri
- · Replies 5 ·
Need Answer Check - Potential Energy
- ch3570r
- · Replies 11 ·
Adiabatic vs. Isothermal Expansion: How to Calculate Work and Temperature?
- bio87
- · Replies 2 ·
What Angle Does the Electron's Velocity Make with the Magnetic Field?
- Dart82
- · Replies 5 ·
Who first measured sound waves and how do tuning forks measure them?
- elitespart
- · Replies 1 ·