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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A couple basic physics questions(vector sum and kinematics)
- Crusaderking1
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Dimensionless physical quantities
- J-Girl
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Finding average acceleration by combining constant velocity vectors
- kmb11132
- · Replies 6 ·
Spring-block harmonic motion: velocity and acceleration at 8 cm
- KrhUhart
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Voltage drop over dependent current source?
- Inertigratus
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Binding energy of a single C-C covalent bond
- exzacklyright
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Vector Components In Box Problem
- Nanotech19
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How Does Altitude Affect the Weight of Water?
- yenting
- · Replies 3 ·
Is there really any such thing as an incompressible liquid?
- Abu Rehan
- · Replies 1 ·
How to Find Vector Angles and Differences?
- realism877
- · Replies 11 ·
Simple Vector Component Projection
- oddjobmj
- · Replies 2 ·
Photoelectric effect and blue light
- leslielau
- · Replies 12 ·
Simple Circuit diagram Question
- skykiller95
- · Replies 11 ·
Projectile Motion Archery Problem
- Intex
- · Replies 1 ·
Flux out of a Cylindrical Cable
- jegues
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How Long Does It Take for Velocity to Change Under Constant Acceleration?
- Tipolymer44
- · Replies 3 ·
What is the Moment of Inertia of a Book Pivoting at One Corner?
- armolinasf
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Kinetic Energy relative to total energy in SHM
- armolinasf
- · Replies 1 ·
Finding the force needed for equilibrium.
- Crusaderking1
- · Replies 10 ·
Find the position of the center of mass of the binary star system
- csharsha
- · Replies 1 ·
How Can I Calculate the Maximum Kinetic Energy of an Oscillating Object in SHM?
- armolinasf
- · Replies 2 ·
Calculating Final and Change in Velocity for a Rolling Ball Experiment
- BuhRock
- · Replies 24 ·
Difference between average velocity and change in velocity
- BuhRock
- · Replies 3 ·
Finding Frequencies for Wave Sum Vanishing at x=0,L
- JuanYsimura
- · Replies 1 ·
Cutting Wires in a Circuit of Light Bulbs
- alfredo24pr
- · Replies 3 ·
Electric potential from two parallel charged sheets with +ω density
- charlies1902
- · Replies 1 ·
Bullet fired horizontally from building: finding launch height and distance
- MakeItThrough
- · Replies 3 ·
Why Does Coulomb's Law Give Different Results for the Same Charges?
- anna sung
- · Replies 1 ·
Maximum angular velocity for block on rotating turntable
- Xamien
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Is e field equal to the negative derivative of electric potential?
- pyroknife
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Tension, Angles, Forces Problem
- whoopie88
- · Replies 1 ·
Force, Find the Angle Given 2 Forces of Equal Magnitude, but Different Direction
- Simon777
- · Replies 6 ·
Finding collector, emitter and base currents in a transistor circuit
- Femme_physics
- · Replies 31 ·
Kinematics / Forces Friction Problem?
- whoopie88
- · Replies 2 ·
Calculating Charge on Capacitor 4
- wolfgangjt
- · Replies 10 ·
What is the Required Horizontal Force for a Shopping Cart on an Inclined Plane?
- whoopie88
- · Replies 2 ·
Constant Acceleration - Sandbag Dropped From a Rising Balloon
- Nickg140143
- · Replies 11 ·
Find Complex Outputs of Series RC Circuit
- kikko
- · Replies 1 ·
Finding voltage drops across resistors in a series circuit
- MegaDeth
- · Replies 31 ·
Constant acceleration ball throw problem
- Crusaderking1
- · Replies 9 ·
What is the Height of a Window Above the Ground?
- Brock Skywalk
- · Replies 16 ·
Solving a Frictionless Incline Problem: Calculating Normal Force
- ur5pointos2sl
- · Replies 4 ·
Kleppner and Kolenkow - Pulleys
- jgens
- · Replies 2 ·
Astronomy - Correct solution? Part 1
- tosv
- · Replies 2 ·
Basic quantum physics, Balmer series
- Quaint
- · Replies 1 ·
Drawing a motion diagram for a ball thrown upward
- nukeman
- · Replies 6 ·
Finding true air speed from indicated air speed at 25000 feet
- lomao
- · Replies 1 ·
Railway wagon rolling down incline and colliding inelastically
- exaty
- · Replies 2 ·
Confirm/Refute: Block A Will Drag Block B to the Left
- DJ-Smiles
- · Replies 2 ·
What Minimum Height Fish Must Spot Pelican to Escape?
- stacker
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How Does the Equation i=nFj Relate Current Density to Charge?
- Oscar6330
- · Replies 23 ·
Angular Velocity of Rotating Mass
- 20930997
- · Replies 12 ·
Solving Vector Problems: A+B+unkC = (15,0)
- Miike012
- · Replies 3 ·
How Do You Apply Lorentz Transformation to High-Speed Situations?
- athrun200
- · Replies 3 ·
Calculating moments of forces/fulcrum PDF file attached
- mt05
- · Replies 1 ·
Calibrating an axis with hyperbolas and slope 5/3
- TrimHopp
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Instantaneous Velocity with Position v. Time graph
- achibaby1974
- · Replies 1 ·
Gravitational Force on three spheres
- TmrK
- · Replies 17 ·
Energy-height graph of a ball falling through a viscous fluid
- tatata
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What is the cyclist's end position? I know his displacement.
- AVReidy
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Thermal - derive a work equation
- accountkiller
- · Replies 6 ·
Bungee Jumping-Tension+Air resistance with regards to max extension
- Thiras
- · Replies 6 ·
Finding tension in pulley system with friction
- dlilpyro
- · Replies 1 ·
Inelastic collision. Two angle variables.
- ttttrigg3r
- · Replies 5 ·
How High Does a Coin Tossed Straight Up Reach?
- student54321
- · Replies 3 ·
Finding net gravitational force magnitude on moon
- TmrK
- · Replies 2 ·
Using kinematics to find motions with constant acceleration
- Crusaderking1
- · Replies 22 ·
What is the pattern of circular wavefronts produced by a moving source?
- Peter G.
- · Replies 1 ·
Bragg Angles + Thermal Expansion
- exzacklyright
- · Replies 2 ·
Solving Fx for 50kg Skier Down Hill
- 1MileCrash
- · Replies 2 ·
Baseball home run projectile motion at 30 degrees
- DJ-Smiles
- · Replies 1 ·
What is the acceleration of a spacecraft during liftoff?
- elleleeanne
- · Replies 2 ·
Gravitational/electrostatic Equilibrium on a ramp
- goteamusa
- · Replies 10 ·
How long does a kangaroo stay in air jumping 3.0 m high?
- student54321
- · Replies 1 ·
Calculating height in free falling problems
- akalei
- · Replies 3 ·
Initial Velocity from Highest point and angle?
- litzkrieg
- · Replies 1 ·
Constant acceleration and maximum deceleration
- andyman21
- · Replies 4 ·
Am struggling with these couple of questions
- Brock Skywalk
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Will the Bullet Hit the Falling Monkey?
- salhayek
- · Replies 4 ·
Spacetime homework problem
- athrun200
- · Replies 3 ·
Maximum force on 25kg block before 15kg block slides
- stonecoldgen
- · Replies 1 ·
Help checking momenergy problem solution
- athrun200
- · Replies 1 ·
Calculating Electric Field for a Point Charge Inside a Hollow Sphere
- isabellef
- · Replies 1 ·
Charge on and the potential difference across capacitors
- wolfgangjt
- · Replies 3 ·
Deriving a formula that an old physicist showed me.
- amidda1217
- · Replies 4 ·
What Angles Allow a Football to Clear the Goalpost?
- Loppyfoot
- · Replies 28 ·
Catapult vertical displacement problem
- ama
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(Mechanics) Getting a distance in a Ball Drop question
- kid0
- · Replies 4 ·
Moon's gravitational pull on Earth's oceans compared to Earth's
- schroedinger4
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Derive the displacements movable pulleys.
- Legendon
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Is There a Potential Difference Across the Inner and Outer Walls of a Conductor?
- Juggernaut
- · Replies 5 ·
Projectile on incline: why is θ = π/4 + ϕ/2?
- leitz
- · Replies 1 ·
2D Kinematics; Flying Saucer observed with two velocities
- oddjobmj
- · Replies 3 ·
How to Calculate Masses and Acceleration in an Atwood Machine Problem
- Ash182
- · Replies 1 ·
Three blocks connected by two strings: tensions?
- ddtozone
- · Replies 3 ·
Formula for free-falling object?
- J-Girl
- · Replies 5 ·
What is the acceleration of the car
- colin_delecia
- · Replies 1 ·
Free Falling Spiderman. I need to find height
- airgunde
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What Height Was the Ball Thrown From in This Projectile Motion Problem?
- Star Forger
- · Replies 7 ·
Force inverse to distance squared: can I solve this like SHM?
- athrun200
- · Replies 1 ·