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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The Units of a Position Vector in a Hilly Landscape
- amcqueen
- · Replies 5 ·
Conservation of Linear Momentum (man on a moving railcar)
- Vertiviper
- · Replies 5 ·
Why does F_3a = F_2(a+b) for forces on a stick?
- Grand
- · Replies 1 ·
How Is the Centre of Mass Calculated in a Lab Experiment?
- Sinister
- · Replies 4 ·
Conceptual SR question (2 cyclists)
- RoyalCat
- · Replies 1 ·
Two Questions about Potential Energy
- Thefox14
- · Replies 4 ·
How was this ODE solution found? Doesn't seem to be the normal solution.
- InvisibleMan1
- · Replies 6 ·
Are the velocities of two cars equal if they travel at 25 m/s on different routes?
- roza-chan
- · Replies 10 ·
Uniform solid sphere rolling on inclined plane
- antiparticle
- · Replies 1 ·
Finding reflection angle for electrons diffracted by crystal
- roam
- · Replies 1 ·
Newton's Second Law vs. Energy Equations
- JJBladester
- · Replies 3 ·
Solving for Constant acceleration
- Lic2kill
- · Replies 5 ·
Calculating power output of a car
- cherrydeee
- · Replies 1 ·
Distance Covered by Particle from A to +1 on Curve y=ax2
- The legend
- · Replies 4 ·
Advice on my Tennis Ball Launcher
- MMAiNNovaToR
- · Replies 1 ·
Projectile Motion airplane engine question
- LoveKnowledge
- · Replies 5 ·
Passengers apparent weight on elevator when it's acceleration is negative
- korinnewade
- · Replies 2 ·
How Do You Calculate the Average Acceleration of a Sailboat Changing Direction?
- chroncile
- · Replies 3 ·
Understanding S36°E: A Quick Explanation
- magic88
- · Replies 2 ·
Error propagation for Wheatstone bridge resistance measurement
- Yatty33
- · Replies 1 ·
Gravitational force between a baby and Mars
- LoveKnowledge
- · Replies 1 ·
Finding ramp angle and final speed with friction for sliding ice block
- DrManhattanVB
- · Replies 4 ·
Calculating Gravitational Force: Baby vs Mars
- LoveKnowledge
- · Replies 2 ·
Find drag given reference area and speed
- korinnewade
- · Replies 1 ·
Optics finding index of refraction
- Liquidxlax
- · Replies 1 ·
Calculate the average force F acting on car
- cp-svalbard
- · Replies 1 ·
How Do You Calculate the Effective Stiffness of an Iron Bar?
- ohheytai
- · Replies 1 ·
Does a string have tension if the ship is slowing down?
- woodrufs
- · Replies 3 ·
Projectile motion locust jump question
- The_big_dill
- · Replies 1 ·
Calculating the electric field due to a wire of finite length
- aftershock
- · Replies 1 ·
What is the electric field at the end of a thin rod with a distributed charge?
- thetest
- · Replies 5 ·
Uncertainty in area of a circle
- zero13428
- · Replies 7 ·
A series of long problems involving Acceleration, Gravity, Speed, Distance
- asz304
- · Replies 1 ·
Solve AC Voltage Form: RLC Series Circuit Power
- Acuben
- · Replies 3 ·
Overcoming Friction Sliding Box.
- PEZenfuego
- · Replies 4 ·
Solving Deceleration on an Inclined Road
- iRaid
- · Replies 1 ·
Force and Motionfinding tension?
- MetalAttack
- · Replies 3 ·
Do uranium isotopes have the same interatomic distance and bond stiffness?
- ohheytai
- · Replies 1 ·
Finding the Distance Between Moving Animals with Constant Acceleration
- derRoboter
- · Replies 1 ·
Novice Problem for Final Velocity
- PhysicsAdvice
- · Replies 2 ·
Determine Kinetic Energy of Satellite
- JJBladester
- · Replies 4 ·
Kinematics of rectilinear motion - multiple displacements
- derRoboter
- · Replies 1 ·
Pulley system with spring and car EOM
- tisquared
- · Replies 4 ·
Water stream narrowing below tank hole using Bernoulli's theorem
- zorro
- · Replies 7 ·
How Long Does It Take a Dropped Book to Hit the Floor in a Descending Elevator?
- caksez.14
- · Replies 10 ·
Using ODE45 to Solve Matrix Differential Equations in MATLAB
- madjid222
- · Replies 1 ·
Complete Radioactive Decay Equations and Identify Types
- pat666
- · Replies 2 ·
Physics symbols and notation in English
- shobat
- · Replies 13 ·
Solving the drag force differential equation and terminal velocity
- sponsoredwalk
- · Replies 7 ·
How do I calculate the force of gravity on a 1-kg mass at Earth's surface?
- LoveKnowledge
- · Replies 5 ·
Total energy of satellite in orbit
- cyt91
- · Replies 2 ·
Where is the Maximum Intensity of Radio Signal from Two Towers?
- stphillips
- · Replies 1 ·
Why do law of cosines and component method give different resultant forces?
- vipertongn
- · Replies 1 ·
How Many Revolutions Does a Turbine Make When Coasting to a Stop?
- Tina20
- · Replies 1 ·
Finding launch speed from 876 J of work on a 0.398 kg projectile
- Chica1975
- · Replies 3 ·
Calculate Tension of Wire with 6kg Mass on 3.5m Rod
- Chica1975
- · Replies 3 ·
Check for me this solution in General Physic
- vuvan
- · Replies 2 ·
Solve Energy Dissipation in Resistor: I = 0.09 A, R = 80.0 Ω
- roam
- · Replies 1 ·
NRamp Force Problem: Find F and Normal Force on 87kg Crate
- Amberosia
- · Replies 1 ·
Average speed of caiman swimming in two segments
- deaninator
- · Replies 4 ·
Graph descriptions of velocity, acceleration, speed and time
- asz304
- · Replies 1 ·
Finding displacement from velocity and acceleration graphs
- asz304
- · Replies 2 ·
Work done by friction on a 7.76m laundry basket
- Chica1975
- · Replies 6 ·
Program calculating bounces of a particle off circles.
- firegoalie33
- · Replies 2 ·
How Is Voltage Across a Resistor Equivalent to That Across a Capacitor?
- mcpoopants
- · Replies 1 ·
Solving Object's Velocity at Bottom of Frictionless Incline
- GinnyG
- · Replies 1 ·
Two current carrying wires perpendicular to each other
- iacyclones25
- · Replies 1 ·
Finding the angle and distance to treasure with vectors
- MHerbert11
- · Replies 1 ·
Power required for helicopter to hover.
- Fruh2theline
- · Replies 2 ·
Min. downward force to keep object from slipping
- kevnm67
- · Replies 8 ·
Natural frequency of two masses connected by a spring
- NeedPhysHelp8
- · Replies 12 ·
Physics illiterate Finding Magnitude and Direction given displacement vectors
- jdp123
- · Replies 2 ·
Angles Transversed with Centripetal Acceleration
- Durin
- · Replies 2 ·
Non-Uniform Circular Motion - Finding total acceleration
- Defagment
- · Replies 2 ·
How Long Does It Take a Block to Move 30cm with a Frictionless Pulley System?
- onaboat
- · Replies 3 ·
Bar magnet and coil: finding number of turns to balance magnetic field
- tjvogel
- · Replies 2 ·
Centripetal force on a curved bridge
- aurao2003
- · Replies 1 ·
Checking algebra in electric field and inertia derivations
- Green Destiny
- · Replies 18 ·
Finding Earth's orbital radius given centripetal force from the moon
- kapitanma
- · Replies 1 ·
Vector Addition: Calculate Magnitude of Sum
- joej24
- · Replies 3 ·
Finding coefficient of friction from velocity alone
- xSnoopy
- · Replies 11 ·
Finding cable forces from resultant force on mast top using unit vectors
- imapeiceofwod
- · Replies 6 ·
Why does reflection in a prism give twice the prism angle?
- shyta
- · Replies 1 ·
How can I determine the current in all resistors in a circuit with given values?
- e334G
- · Replies 4 ·
Density of a Bar of Soap/ buoyancy
- raisatantuico
- · Replies 3 ·
How to Convert CGSEm to SI Units?
- Uku
- · Replies 1 ·
Prove 2 cars moving on same road will not have Collision
- ag35cosy
- · Replies 4 ·
What Is the Tangent of the Angle Between Vector A and the X-Axis?
- joej24
- · Replies 2 ·
Speed needed to reach Alpha Centauri in 100 years
- lifeunderwate
- · Replies 2 ·
Forces and Laws of Motion Problem
- ._|evo|_.
- · Replies 3 ·
Find Magnitude of Force F3 for Min Resultant FR
- quantum_enhan
- · Replies 1 ·
What is the minimum radius of curvature of the curve?
- gap0063
- · Replies 1 ·
Uniform electric field moving a proton and electron
- gsquare567
- · Replies 5 ·
Magnitude of Acceleration without time?
- drifterxs12
- · Replies 5 ·
Momentum and Pressure and Forces
- Pawnag3
- · Replies 3 ·
What is the Final Velocity After Deceleration?
- ScienceGirl90
- · Replies 3 ·
Relative motion and displacement
- Scarlet_pat
- · Replies 2 ·
Finding the Launch Angle of an Artillery Gun
- kvan
- · Replies 5 ·
Object moving in equilateral triangle - magnitude of acceleration
- physos
- · Replies 2 ·
How Do You Calculate Instantaneous Acceleration in Physics Problems?
- Leeee
- · Replies 2 ·