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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Rotating Frames of Reference question.
- John H
- · Replies 3 ·
Maximizing Rocket Thrust: Doubling Velocity and Tripling Fuel Burn Rate
- XwakeriderX
- · Replies 1 ·
Thermodynamic differental relations problem
- knowlewj01
- · Replies 4 ·
An Impossible momentum problem?
- pokeefer
- · Replies 1 ·
Calculate Acceleration of Crate w/ Friction - 1930N, 408kg, 0.26u
- lolkbye
- · Replies 4 ·
Motor Raising Mass: Solve Acceleration Homework Problem
- lempkema
- · Replies 7 ·
Vectors. Calculating Weight (N) of Plane with force and angle of take off
- kitenyos
- · Replies 1 ·
Calculating Momentum in Multi-Object Systems
- pokeefer
- · Replies 2 ·
How Do You Calculate the Acceleration of a Toboggan with Given Forces?
- anna sung
- · Replies 4 ·
How Do You Calculate a Car Wheel's Angular Acceleration and Total Acceleration?
- 122760
- · Replies 3 ·
Direction of resultant displacement?
- gredrick0896
- · Replies 1 ·
Car's Kinetic Energy After Doubling Linear Momentum
- XwakeriderX
- · Replies 1 ·
How to find Velocity Inital with just angle and time?
- ktmjake1107
- · Replies 1 ·
Fusion reaction (don't know what I'm doing wrong)
- tkoi
- · Replies 2 ·
Is This the Correct Method to Calculate the Equivalent Resistance?
- RedDead
- · Replies 2 ·
Line Current in Three Dimensions
- musiliu
- · Replies 2 ·
Magnification (major confusion with the signs)
- s3a
- · Replies 1 ·
Juggler Problem: Solving Kinematics for Ceiling Height
- student1ds
- · Replies 5 ·
Finding Acceleration of a cart. NEW
- rum2563
- · Replies 4 ·
Friction, a sled, snow covered hill, sliding box
- Blangett
- · Replies 2 ·
Projectile motion conceptual question
- madah12
- · Replies 4 ·
Find the coefficent of kinetic friction
- NeedsHelp1212
- · Replies 2 ·
Circular Motion Concepts: Understanding the Stability of Rotating Objects
- madah12
- · Replies 2 ·
Calculating Rope Tension & Foot Force for Mountain Climber
- dvolpe
- · Replies 5 ·
Calculating Induced Current in a Coil of Wire
- roam
- · Replies 7 ·
Mass on a ramp with friction discrepancy
- Questlove
- · Replies 1 ·
How to Find Charge Stored on Capacitors in Series?
- mli273
- · Replies 1 ·
Mass vs. Weight in space questions
- Lides2011
- · Replies 2 ·
What is the impact speed of the lunar module?
- MozAngeles
- · Replies 8 ·
How can the density, area, and velocity be related in a cyclic fluid flow?
- doctordoom
- · Replies 4 ·
Calculating Acceleration of Block on Inclined Plane with Applied Force
- siderealtime
- · Replies 5 ·
Relative motion on a conveyor belt
- JJBladester
- · Replies 1 ·
Finding the relaxed length of a sping
- sheiky989
- · Replies 1 ·
Two Spheres Attracted by Gravitational Force
- maximoanimo
- · Replies 2 ·
How Do You Draw a Physics Displacement-Time Graph?
- Physics Time
- · Replies 1 ·
Physics Kinematics of a swimmer
- Hafsaaa
- · Replies 3 ·
Solve Inclined Plane System with Spring & Mass
- Pyae
- · Replies 1 ·
Kinetic Energy and Colliding Blocks
- mohabitar
- · Replies 2 ·
Acceloration and tension of a pendulum
- BoldKnight399
- · Replies 1 ·
Calculating Kinetic Energy for a Satellite Launch
- alicia.kostka
- · Replies 3 ·
Solving Homework Equations: Your Step-by-Step Guide
- rado5
- · Replies 7 ·
Work done on block by spring and friction
- JennV
- · Replies 1 ·
Calculate Work Done by Forces on 330kg Piano Sliding Down 28º Incline
- tica86
- · Replies 2 ·
Side-by-Side Blocks with Force pushing it
- ifeelretarded
- · Replies 4 ·
Projectile Motion of a Skier Problem
- Eliza10
- · Replies 4 ·
What is the Magnitude of Vector B in the Vector Addition Problem?
- fiziks09
- · Replies 3 ·
Calculating Acceleration Due to Earth's Gravity at Moon's Orbital Radius
- MozAngeles
- · Replies 6 ·
Solving Rotations Homework: Double Speed vs Halving Radius
- baobao11
- · Replies 2 ·
Another Special Relativity Question
- Chip90
- · Replies 7 ·
Solving for F to Hold a Box Still on a Ramp w/ Friction
- k-rod AP 2010
- · Replies 2 ·
How to Solve an Object's Velocity and Acceleration Using Vectors?
- tarletontexan
- · Replies 8 ·
Physics Questions: Changes in Gravitational Force and Orbital Speed
- roymartin777
- · Replies 1 ·
How Does Bullet Speed Affect Pendulum Motion?
- mathematical
- · Replies 2 ·
How Do You Calculate Power Output in Physics Problems?
- zjhcool
- · Replies 1 ·
Graphing & Scales Help: Applying 1:300 & 1:20 Scales
- twenty5
- · Replies 2 ·
What is the speed of the block after the collision?
- huynhtn2
- · Replies 1 ·
Car Tire Skidding: Deceleration with uk = 0.8
- physics_10
- · Replies 1 ·
Which object has a higher drag coefficient at 10 m/s: golf ball or basketball?
- XwakeriderX
- · Replies 1 ·
With what magnitude must the man pull on the rope
- passphysicsC
- · Replies 17 ·
How many coulombs of positive charge are in 1.91 mol of O2 gas?
- Tina20
- · Replies 1 ·
How Far Do the Blocks Slide After Spring Release?
- vande060
- · Replies 4 ·
Find Magnetic Field of Infinitely Long Line Current
- musiliu
- · Replies 5 ·
Pressure in an inverted cylinder partially filled with water
- zerogoal
- · Replies 2 ·
How Do You Calculate Roller Coaster Speeds in Physics Problems?
- mickeymouseho
- · Replies 4 ·
Catapult final (impact) velocity
- Havenater23
- · Replies 1 ·
Applied Force/Force of friction
- physics_10
- · Replies 1 ·
How to Find the Current in a 6 Ohm Resistor?
- RedDead
- · Replies 5 ·
Newton's Laws and finding acceleration
- physics_10
- · Replies 1 ·
Eliminating forces by taking a moment
- yoleven
- · Replies 4 ·
Magnitude of centripetal force acting on a roller coaster at the top of a loop
- XwakeriderX
- · Replies 2 ·
Collision of Two Protons: Separation at Momentary Stop
- ohheytai
- · Replies 5 ·
Gauss' Law - Electric Flux and Electric Field
- Yuxtapuesto
- · Replies 5 ·
What is the angle of a suspended rod supported by two springs?
- cegraves
- · Replies 2 ·
How much work does the earth do? help
- ohheytai
- · Replies 2 ·
Calculate Satellite Velocity at 3600 km Above Earth
- pb23me
- · Replies 4 ·
Blackbody radiation calculation problem
- LordCalculus
- · Replies 2 ·
How Can a Box Accelerate If It Pushes Back with Equal Force?
- gotwind
- · Replies 3 ·
How long does it take to reach the bottom of the ramp
- daisyrae
- · Replies 2 ·
Stockroom worker pushes a box homework problem
- moondawg
- · Replies 2 ·
Nonuniform Circular Motion: The Top of the Loop
- L'Arrogant
- · Replies 1 ·
Solving the Haaland Equation for Re
- dearmrfantasy
- · Replies 4 ·
Calculating Electric Field Amplitude of Transmitted Light
- sheepcountme
- · Replies 2 ·
Atwood's machine on an inclined plane
- I Like Pi
- · Replies 1 ·
How Do You Evaluate the Extension Value Under a 6N Load Using F = kx?
- r-soy
- · Replies 20 ·
Tension in a string last problem.
- pokeefer
- · Replies 1 ·
What Are the Maximum and Minimum Voltages Generated by a Generator?
- zebra1707
- · Replies 3 ·
Problem of conservative and non-conservative forces
- dmatador
- · Replies 3 ·
How Does Earth's Magnetic Field Influence AC and DC Currents?
- mikee
- · Replies 4 ·
Conceptual question concerning forces and scales and elevators
- picklepie159
- · Replies 1 ·
Reducing Equivalent Resistors and Capacitors
- fatcat39
- · Replies 5 ·
Calculating Earth's Radius from a Beach Sunset
- The legend
- · Replies 8 ·
Finding speed, acceleration and distance
- applepie89
- · Replies 4 ·
If I spin in circles, am I accelerating?
- harp AP 2010
- · Replies 2 ·
Understanding the 3rd Law of Motion: Solving a Common Homework Problem
- harp AP 2010
- · Replies 2 ·
What Does \mu Represent in Free Body Diagrams?
- moondawg
- · Replies 1 ·
Two Dimensional Kinematics Projectile Motion
- Jetsgirl
- · Replies 1 ·
Find the force constant fron the graph
- r-soy
- · Replies 2 ·
Rotation of the Earth and Apparent Weight?
- wmrunner24
- · Replies 1 ·
How to Calculate Sound Pressure from Displacement Wave?
- Booney
- · Replies 1 ·