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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Non-uniform thermal conductivity
- matt222
- · Replies 6 ·
Is Linearity Always Exact in Differential Equations?
- bon
- · Replies 3 ·
2 parallel rays are travelling in a medium
- zorro
- · Replies 9 ·
What is the friction force required for a wheel to roll without slipping?
- kareem_3d
- · Replies 1 ·
Some simple distance vs time problems?
- -Dragoon-
- · Replies 2 ·
Superluminal motion. How's that possible?
- xander1984
- · Replies 52 ·
Physics homework help projectile motion
- scratch1
- · Replies 13 ·
What Is the Electric Field at the Surface of a Geiger Counter?
- manenbu
- · Replies 5 ·
Some questions about quantum mechanics
- R.P.F.
- · Replies 1 ·
Electric charge and electric feild prblem
- geniusawy
- · Replies 2 ·
Calculate the time of the impact of this force
- UNknown 2010
- · Replies 5 ·
Understanding Galvanic Cells: Salt Bridge, Electrode Potential, and More
- Misr
- · Replies 4 ·
Turning effect of forces - moments
- INeedHelpPls
- · Replies 7 ·
Calculating Photon Momentum & Force
- ride4life
- · Replies 3 ·
Distance, Acceleration, Time, and Power
- Norngpinky
- · Replies 5 ·
Average emf induced in Square Loop
- connie5828
- · Replies 2 ·
Preparing for Modern Physics: Mechanics & EM Review
- diligence
- · Replies 5 ·
Compressing Gas: Why Does It Heat Up?
- Peter G.
- · Replies 7 ·
Does a spring count as a surface?
- flyingpig
- · Replies 1 ·
Work Energy Theorem: Find Speed of Block Descend
- vissh
- · Replies 12 ·
Why a heavier skier/whatever is faster, the answer.
- re1s
- · Replies 3 ·
Net Force of 60 kg Person in Elevator: Up/Down
- barthayn
- · Replies 4 ·
Egg Drop Challenge: Pack it Right or Die Trying
- Ghettobabe
- · Replies 10 ·
Vector Cross and Dot Products: Understanding and Solving Problems
- clementc
- · Replies 8 ·
Solving for acceleration of a piston
- Palladian1881
- · Replies 1 ·
Solving for Velocity: Metal Ball Swinging in a Circle
- Nusc
- · Replies 11 ·
Understanding Acceleration in Curling: An Analysis of Momentum in the Laboratory
- The_big_dill
- · Replies 14 ·
What is the force at the axis of a rotating rod
- Karol
- · Replies 2 ·
How Does Energy Transform into Force During Physical Interactions?
- Peter G.
- · Replies 1 ·
Classical Mechanics (Lagrangian)
- firemarsh
- · Replies 8 ·
How Do You Calculate Optical Properties of an Unknown Thin Film?
- Tzontonel
- · Replies 8 ·
Understanding Charge and Electric Current in a Circuit
- Peter G.
- · Replies 5 ·
Multiple answers to this question? Centripetal acceleration
- MusicTheorist
- · Replies 14 ·
Annihilation of two particles / Rest mass energy
- physics369
- · Replies 2 ·
Finding average resistive force
- jman1209
- · Replies 1 ·
What is the Effect of Reduced Air Resistance on an Object's Acceleration?
- Dberry
- · Replies 4 ·
How do you calculate/find mass, volume?
- brysonlee
- · Replies 4 ·
Finding mass only given electrons
- CathyLynn45
- · Replies 3 ·
Drawing Free Body Diagrams for Acceleration Problems
- MysticDude
- · Replies 10 ·
Newton's Laws, not sure which law this is, also FBD
- flyingpig
- · Replies 33 ·
Solving Force Problems: Divide Weight of Plane by Gravity?
- Dberry
- · Replies 5 ·
Why Does My Mirror Fog Up When I Take a Shower?
- Peter G.
- · Replies 2 ·
Emergency, derive or derivative of moment of intertia
- Clairepie
- · Replies 3 ·
How Fast is the Distance Between Two Ships Changing at 4:00 P.M.?
- madah12
- · Replies 3 ·
Loop the loop problem with centripetal force
- r19ecua
- · Replies 1 ·
Circular ring and potential at its centre.
- lavanyasharma
- · Replies 1 ·
Why Is My Calculated 'g' Value Incorrect When Using the Pendulum Equation?
- Danni11111
- · Replies 9 ·
Right-Hand Rule: Current, Magnetic Field, Force
- homevolend
- · Replies 7 ·
Head On Collision: Cars vs Trucks
- harsh95
- · Replies 7 ·
How Fast Does Howard Fly from the Cannon?
- leggomymeggo
- · Replies 3 ·
Troubled by Integrating Dose Rate
- matt222
- · Replies 1 ·
Theoritical doubt in aeronautical engg
- apst
- · Replies 3 ·
What Will Be the Radiation Level at 6m from a Point Source?
- nonphysical
- · Replies 12 ·
How about a QUESTION OF THE DAY?
- dharavsolanki
- · Replies 4 ·
Solving Inclined Plane Motion: Find Force for Acceleration
- Ockonal
- · Replies 1 ·
What is the solution to the Hanging Chain Problem?
- xeonese
- · Replies 1 ·
Analyzing Forces on a Rolling Sphere in a Loop: A Homework Question
- sicrayan
- · Replies 1 ·
How can I find a unit vector that bisects the angle between two other vectors?
- Cloud 9
- · Replies 2 ·
What is the rockets momentum after the course change?
- sidge2222
- · Replies 3 ·
How Does Doubling Speed Affect Energy Use Against Drag in Cycling?
- justunme
- · Replies 1 ·
Area moment of inertia of a triangle
- andmcg
- · Replies 5 ·
Comparison of Electric and Magnetic Forces
- godiva
- · Replies 1 ·
Induced Current and Magnetic Fields
- d4v3
- · Replies 4 ·
I don't get why this is the same?
- flyingpig
- · Replies 5 ·
Pounds of force upon impact question
- magicalheat
- · Replies 4 ·
De Broglie postulate and electron acceleration
- sushiking
- · Replies 1 ·
How Do You Calculate Angular and Linear Velocities of a Rotating Rod?
- wooram83
- · Replies 4 ·
Thermodynamics: Turbojet nozzles
- mullzer
- · Replies 1 ·
Calculating the Time and Angle of a Falling Stick on a Table
- onlygirl
- · Replies 2 ·
Static fluids; Density; Buoyancy
- awertag
- · Replies 1 ·
Snowboarder velocity physics problem
- vanessajune77
- · Replies 6 ·
Light after a Polarizer Question
- iurod
- · Replies 1 ·
Electric Field and Electric Potential Question
- iurod
- · Replies 3 ·
My professor gave us no solutions and my final is in two days PLEASE HELP
- ghettobacon
- · Replies 3 ·
Solve Relativity Questions: KE, Time, and Distance
- iurod
- · Replies 8 ·
What is the Formula for Thin Film Interference?
- Precursor
- · Replies 2 ·
Determine the length the pendulum has travelled
- Nusc
- · Replies 2 ·
What is the entropy change of gas during an internal combustion engine test?
- sparkle123
- · Replies 8 ·
Circular Motion: Homework on Force, Acceleration, Velocity
- runningirl
- · Replies 4 ·
How Do You Calculate the Initial Height of a Block on a Frictionless Ramp?
- Swimkid711
- · Replies 3 ·
A block on incline and forces acting upon it
- darklordavion
- · Replies 7 ·
Magnitude of the acceleration of the ball
- darklordavion
- · Replies 1 ·
Is there someone help me about thermodynamics
- opeth_35
- · Replies 2 ·
Dynamics (Kinematics) relative motion, HELP
- badaboom
- · Replies 1 ·
Heat Eq 2D stationary, cond+conv
- phiz
- · Replies 1 ·
How Can We Investigate the Physics of an Ethnographic Object?
- don1231915
- · Replies 2 ·
Angular velocity of an airplane propeller
- moondawg
- · Replies 1 ·
Trajectory of Mud Glob Thrown From Wheel: Solving the Mystery
- physicsnoob1
- · Replies 3 ·
Conservation of Momentum: Relativity
- Buri
- · Replies 12 ·
Potential Energy / linear and angular velocity
- wooram83
- · Replies 1 ·
Discover the Acceleration and Angle of Circular Motion | Car Physics Explained
- googooloo
- · Replies 7 ·
Thermodynamics - Finding volume and clearance
- jacko113
- · Replies 1 ·
Calculating Speed of Kite String Release for 120ft Kite Flight
- killykilly
- · Replies 2 ·
What is the tension in the rope holding a helium-filled balloon at a party?
- awertag
- · Replies 7 ·
Ellastic collision between a frame and projectile
- Rosengrip
- · Replies 7 ·
Help with Rigid Body Exercise: Determine Speed of B
- Telemachus
- · Replies 2 ·
Circular Motion Regarding Car Sliding on a Curve
- Neek 007
- · Replies 3 ·
How to Derive the Oscillation Period of Water in a U-Tube?
- newtn46
- · Replies 7 ·
Calculating Maximum Deceleration of Re-entry Capsule
- spacemike1
- · Replies 4 ·