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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How to Prove Vector Identity k = (a+b)(c+d)?
- colerelm1
- · Replies 5 ·
Apollo spacecraft Homework Help
- cverret311
- · Replies 2 ·
Applying an impulse on a dumbbell from one end
- teoferrazzi
- · Replies 30 ·
Powering the Human Brain: How Long Can One Snickers Bar Last?
- tennischick89
- · Replies 2 ·
What Happens When U, Q, and W Are Negative in the First Law of Thermodynamics?
- Sixty3
- · Replies 1 ·
Two boxes; one pushing the other
- Karajovic
- · Replies 14 ·
Tug-of-War Forces: Solving the Rope Problem
- whoopie88
- · Replies 3 ·
How Do You Calculate Reactions at Supports in Equilibrium Problems?
- Cursed
- · Replies 2 ·
Stunt Driver's Car Jump: Minimum Speed Calculation and Angle Adjustment
- Havenater23
- · Replies 2 ·
A ball launched on a imclined plane
- dannyggg2003
- · Replies 2 ·
Spring problem - conservation of energy?
- ksherwood
- · Replies 3 ·
Calculating Speed in Elastic collision
- connie5828
- · Replies 7 ·
Two Boxes on an incline, tied together by a rope, calculuate tension.
- trafficsigns
- · Replies 1 ·
How Does Friction Affect a Car's Maximum Acceleration?
- kneu
- · Replies 3 ·
Velocity vs. Time Graphical Interpretation
- 1337Montage
- · Replies 1 ·
Angular Motion and Young's Modulus
- fajoler
- · Replies 3 ·
Solve 2 Problems: Help with 500 N Force & Elongation of Aluminum Wire
- Brianjw
- · Replies 13 ·
Calculate Kinetic Friction from Time, Displacement, Height & Length
- hfz_105
- · Replies 1 ·
Can a Skydiver Survive a Free Fall Without a Parachute?
- Xman1120
- · Replies 3 ·
How Does Current Direction Affect Force in a Rectangular Loop?
- ahazen
- · Replies 3 ·
How Far Will a Sliding Box Travel After Leaving a Ramp?
- DocDaGeniouss
- · Replies 1 ·
What is her velocity relative to the surface of the ice?
- Waveparticle
- · Replies 3 ·
Effect of Mass and Force on Acceleration and Distance Traveled in Kinematics
- Karajovic
- · Replies 2 ·
Find the acceleration of an object that is attracted to a magnetic field
- moonman239
- · Replies 3 ·
Barge Buoyancy: Calculating Depth Change with Loaded Crate | Homework Help
- mogibb1
- · Replies 8 ·
Conservative Forces Homework Statement
- ajlucia
- · Replies 1 ·
Change in atmopheric pressure with height (Thermodynamics)
- Slepton
- · Replies 6 ·
What is the Work Done by Force F on a Moving Object?
- WahooMan
- · Replies 2 ·
Electric Field Integration Outside a Cylinder
- frostmephit
- · Replies 1 ·
Finding temperature through a manometer
- Twoism
- · Replies 2 ·
Relative Velocity of Two Ships: When Is Their Separation Least?
- Aramatheis
- · Replies 5 ·
Finding Maximum Weight on a Ramp with Coefficients of Friction
- kari82
- · Replies 1 ·
Volume of Air in Cylinder at 20°C - Calculating with Ideal Gas Law
- Daniiel
- · Replies 2 ·
Converting vector in cartesian to cylindrical coordinates
- dingo_d
- · Replies 6 ·
Significant Figures and speed of a runner
- Bohring
- · Replies 5 ·
Finding the Density of a Planet using Time
- lanzjohn
- · Replies 5 ·
Using Derivatives and Integrals to Find Velocity: Am I doing this right?
- jumbogala
- · Replies 2 ·
Pressures at the water levels in the two open tanks?
- MechaMZ
- · Replies 1 ·
Forces, involving tension and a pendulum
- ://Justice
- · Replies 10 ·
What is the Force Exerted on a Bathroom Scale in an Elevator on Earth?
- whoopie88
- · Replies 4 ·
Simple harmonic motion [ I have an exam tomorrow morning]
- Telemachus
- · Replies 14 ·
Solving Friction Problem: Minimum Force Needed
- aquila457
- · Replies 2 ·
Help, static equilibrium solving for maximum angle of incline
- Runaway
- · Replies 5 ·
Optimizing Pulling Force: Solving for Theta and F in Newton's Laws
- Airsteve0
- · Replies 4 ·
Force on an Incline Plane Problem HELP
- whoopie88
- · Replies 4 ·
Forces btwn Boxes: Find Acc & Magnitude of Contact Forces
- pb23me
- · Replies 7 ·
How Do You Calculate the Mass of a Blue Whale Using Momentum?
- danield3
- · Replies 1 ·
Electric field inside a conducting cylinder with wire
- Liquidxlax
- · Replies 4 ·
Can Savannah Catch the Accelerating School Bus?
- sbayla31
- · Replies 3 ·
Table cloth pulled from underneath a block?
- draymire
- · Replies 2 ·
Accleration problem - car strikes a tree
- Frosty8
- · Replies 2 ·
Calculating Friction Force of a 4000 kg Truck on a 15° Slope
- kdb004
- · Replies 3 ·
How Do You Correctly Add and Subtract Multiple Vectors?
- k-rod AP 2010
- · Replies 3 ·
How to calculate torque with cross product?
- mohemoto
- · Replies 3 ·
Spring Potential energy, should be easy?
- Patdon10
- · Replies 4 ·
Conservation of Momentum with Friction
- derf709
- · Replies 1 ·
Passive forces and Newton's laws
- tica86
- · Replies 1 ·
Determining the speed of a rocket car
- Solidearth
- · Replies 1 ·
Catching the Speeder: Police Car Velocity & Distance Traveled
- moondawg
- · Replies 2 ·
How Is Work and Heat Transfer Calculated in a Polytropic Process for Helium Gas?
- dillonmhudson
- · Replies 3 ·
Physics- center of mass problem ?
- J.live
- · Replies 4 ·
Kinetic Fricion Acceleration Problem
- laxxie
- · Replies 3 ·
Calculating x and y Components of Equilibrium Forces
- kari82
- · Replies 2 ·
How do I find the eigenvalues and eigenvectors of a given matrix?
- LoopQG
- · Replies 7 ·
Trivial question about friction
- Telemachus
- · Replies 2 ·
How Far Down the Slope Does the Arrow Land?
- Umphreak89
- · Replies 11 ·
Finding Initial velocity given certain variables
- Ryang
- · Replies 6 ·
Final velocity of spring down incline with fricition
- gap0063
- · Replies 1 ·
Calculating Energy for Orbital Deployment
- ashvuck101
- · Replies 1 ·
Calculating momentum when you know mass and KE
- connie5828
- · Replies 5 ·
Acceleration is (-2.0i + 4.0j), velocity is 12 m/s
- new^2^physics
- · Replies 4 ·
Frictional force acting on mass
- demonslayer42
- · Replies 5 ·
Finding the Magnitude and Direction of Force one with the Resultant Given
- Nacha
- · Replies 15 ·
Simple recoil velocity question
- LIZard137
- · Replies 1 ·
Bernoulli's Equation and a water pipe
- Zaros
- · Replies 5 ·
Calculating Work with Kinetic Energy in Orbit
- The_Journey
- · Replies 2 ·
Solving a Physics Problem: Calculating Distance with Kinetic Friction and Work
- rghost90
- · Replies 14 ·
Distance of particle travels from origin, and maximum speed, picture included
- gap0063
- · Replies 5 ·
Cost of setting up a sattelite?
- Zaros
- · Replies 7 ·
Finding the Optimal Initial Speed for Circular Motion - What's the Solution?
- roman15
- · Replies 7 ·
Schrodinger ground state wave function
- wrongusername
- · Replies 3 ·
2 boxes stacked, force applied to bottom box
- johnsonc007
- · Replies 1 ·
Current density, resistance and resistivity problem
- ctpengage
- · Replies 4 ·
Centripetal Force Loop-the-loop
- JoshBuntu
- · Replies 3 ·
Length along ramp from end of spring, picture included
- gap0063
- · Replies 6 ·
Theoretical Acceleration of an Atwood machine
- andrewdavis23
- · Replies 6 ·
How Many Turns of Wire Are Needed for a Solenoid with These Specifications?
- ahazen
- · Replies 3 ·
Applying a force perpendicular to an object moving in the x direction.
- pb23me
- · Replies 3 ·
Calculating Tension in a Falling 5kg Brick on a Rope | Homework Problem
- demonslayer42
- · Replies 3 ·
Find Angle Between Vectors C & D Using Alpha, Beta & Theta
- meanyack
- · Replies 2 ·
Getting an average figure with ±
- Monocerotis
- · Replies 3 ·
Projectile Motion football pass
- DJey
- · Replies 3 ·
Sketching An Acceleration-Time Graph From A Velocity-Time Graph
- 1337Montage
- · Replies 4 ·
ThermodynamicsL Heat, Energy and Work Problem
- Tethys
- · Replies 6 ·
Turning effect of force (Moments)
- xiaomeizi
- · Replies 4 ·
Hang-glider and water balloon problem
- Karajovic
- · Replies 6 ·
Finding angle of change in momentum vector
- Patdon10
- · Replies 1 ·
How Do You Calculate Torque When Force is Applied at an Angle?
- Kamikaze
- · Replies 1 ·
A 2D Kinematics Question and Relative Velocity Question
- baillik
- · Replies 3 ·
Electric Current Power Plant problem
- xaer04
- · Replies 3 ·