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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Solve Frictionless Drift Physics Problem: Angle of Inclination
- KonigGeist
- · Replies 3 ·
Calculating Height and Velocity: Solving the Throw-up Problem
- cidilon
- · Replies 13 ·
Spring collision problem: why is my extension 4.5 cm not 6.1 cm?
- cupid.callin
- · Replies 2 ·
How much water to melt ice at 0 degC with water at 5 degC ?
- www123
- · Replies 9 ·
Shining a laser pointer towards the star vega
- moonkey
- · Replies 2 ·
Tension in two cables with a mass
- d.tran103
- · Replies 11 ·
Mirrors & Lenses: Understanding Virtual and Real Images
- pearlz4eva
- · Replies 1 ·
How Do You Calculate Pressure Drop in a Garden Hose?
- Student3.41
- · Replies 1 ·
Work energy question. Rock down a hill.
- Exuro89
- · Replies 3 ·
Resultant Acceleration of an Object Under Perpendicular Forces
- Jamotron
- · Replies 2 ·
Applying Newton's Third Law of Mortion
- Rosieposy08
- · Replies 3 ·
Why is the tension different in two systems with the same downward force?
- Cursed
- · Replies 9 ·
Calculating Force Needed to Pull Sled with 210kg Load
- chawki
- · Replies 2 ·
Ballistic free-fall - rock slide
- gremmie
- · Replies 1 ·
Finding phase shift for mass oscillating on spring at 3.14 cm
- Brian M
- · Replies 6 ·
Finding F on a box on an inclined plane
- mistabry
- · Replies 2 ·
What is d³r in a triple integral?
- InsertName
- · Replies 5 ·
Why does momentum conservation give v = V for a pulley collision?
- cupid.callin
- · Replies 2 ·
Hohmann Transfer, energy for both boosts
- jcook735
- · Replies 1 ·
Orbit changes, Kepler's Third Law
- jcook735
- · Replies 6 ·
Why Does SQRT(3) Factor into the Coulomb Force in an Equilateral Triangle?
- Chronos000
- · Replies 3 ·
Electromagnets and Conductors: The Effects on a Pendulum
- XigmaTek
- · Replies 3 ·
How does torque relate to DC motor efficiency?
- ccnv
- · Replies 1 ·
Particle Motion in One Dimension
- vsc
- · Replies 2 ·
Finding impulse and velocity from a force-time graph for a tennis ball
- Xtremeownage
- · Replies 2 ·
Baseball Kinematics: Calculating Acceleration from Stopping Distance
- novawinters
- · Replies 2 ·
Tension in rope between two cliffs with 535N weight and unequal angles
- Skuriakose
- · Replies 1 ·
Calculating Distance from Seismograph Arrival Times
- Student3.41
- · Replies 21 ·
3 consecutive loops with one being moved from the other two. Len'z Law
- ohsocheezy
- · Replies 1 ·
How Do Pulley Systems Affect Tension Between Different Masses?
- dorkymichelle
- · Replies 3 ·
What Forces Act on a Motorcyclist Accelerating Up an Incline?
- dorkymichelle
- · Replies 3 ·
Baseball's Initial Velocity Problem
- unholymist
- · Replies 3 ·
Circular Path of a Pendulum Problem
- whoopie88
- · Replies 9 ·
Position and Speed of a Hockey Puck with Applied Force
- neurotikfisch
- · Replies 6 ·
How Do You Calculate Vector Sums and Differences Graphically?
- soul814
- · Replies 68 ·
Why use a cylindrical gaussian surface for an infinite charged plate
- IKonquer
- · Replies 16 ·
What Determines the Flow Speed in Differently Sized Horizontal Tubes?
- Hypnos_16
- · Replies 3 ·
How do you derive Kepler's laws from Newton's laws?
- kingpeje
- · Replies 1 ·
How Much Work Was Done by the Pump to Drain a Flooded Basement?
- jelzap
- · Replies 1 ·
How Do You Calculate the Final Speed of Two Colliding Cars?
- shanshan
- · Replies 3 ·
Potential difference across a capacitor
- issacnewton
- · Replies 2 ·
Finding coefficient of kinetic friction on a 35° playground slide
- The Tutor
- · Replies 1 ·
Find speed and kinetic energy for mass released from compressed spring
- erok81
- · Replies 11 ·
Understanding Electric Fields and Calculating E= dV/dS
- cheater1
- · Replies 11 ·
Vibration related: Rigid body modes
- Doctor_Doom
- · Replies 2 ·
Heat transferred to pressure cooker with water and energy loss
- Shakoa
- · Replies 8 ·
Car collision problem. Conservation of momentum
- physicgeek
- · Replies 3 ·
Solve for Time When Two Boys Meet While Moving - Travel Problem
- chawki
- · Replies 15 ·
Electric Potential and Gauss' Laws Stuff (I think)
- I Am Robot
- · Replies 1 ·
How to Determine Uncertainty for Pi Using Formulas and Calculus?
- FBS
- · Replies 1 ·
Parallel Resistors Problem: Total Current and Power Dissipation Calculation
- chawki
- · Replies 1 ·
Velocity of two cars after perfectly inelastic collision
- jtw2e
- · Replies 11 ·
Spring and Incline Plane (Conservation of Energy Problem)
- jzwiep
- · Replies 4 ·
What is the angle between the wire and the vertical?
- Peter G.
- · Replies 7 ·
Find capacitance from time, power, and voltage
- ikjadoon
- · Replies 4 ·
What is the Resistance of a Cylinder Conductor Made of Aluminum?
- JSGandora
- · Replies 5 ·
Vector Addition and Displacement Magnitude in 3D Space
- jared69sib
- · Replies 2 ·
Solving a Momentum Problem: Bullet-Block System with Spring Compression
- mohamud3917
- · Replies 3 ·
Kinematics, Displacement from Velocity-Time
- cidilon
- · Replies 4 ·
How to Find the Resultant Force of Three Forces Acting on a Point?
- Phantom5800
- · Replies 5 ·
Horizontal force on particle moving up rough incline at constant speed
- T.S.M
- · Replies 9 ·
Relationship Between Tension And Resonant Frequency.
- daaaannn.
- · Replies 1 ·
How Does a Charged Ring Affect Electric Field and Oscillation Frequency?
- serrakartal
- · Replies 1 ·
How to determine terminal voltage for a circuit
- Strontium90
- · Replies 8 ·
Low Air in Tires: Impact on Fuel Efficiency
- ashishsinghal
- · Replies 3 ·
What are the force components for each member in the loaded truss?
- SteelDirigibl
- · Replies 2 ·
Electric Field for a line of charge
- VitaX
- · Replies 8 ·
Electric Field over an infinite sheet
- VitaX
- · Replies 1 ·
Do Vessels with the Same Base Area Have Different Weighing Scale Readings?
- Abhishekdas
- · Replies 6 ·
What is the frequency of note y if it is two sext higher than note x?
- songoku
- · Replies 2 ·
What is the repeat length of a wave packet?
- zarrin77
- · Replies 1 ·
Math symbols on GRE POWERPREP software
- Jupiter6
- · Replies 4 ·
Sphere suspended by cord at 32° in horizontal breeze
- dorkymichelle
- · Replies 2 ·
Solving for Damping Coefficient of Pendulum
- dezzz
- · Replies 1 ·
Determine what's in a container
- displayname
- · Replies 5 ·
How Do You Calculate the Velocity of a Ball Thrown from a Moving Train?
- leafsfan2
- · Replies 3 ·
How Do I Plot an Acceleration-Time Graph from a Given Velocity-Time Graph?
- n3w ton
- · Replies 1 ·
Calculating Self-Inductance in Coaxial Cables
- bon
- · Replies 3 ·
Bungee Jumping: Min Spring Constant to Support Jorge (75kg)
- renegade05
- · Replies 2 ·
How Much Force is Needed to Move a Crate with Friction?
- elsternj
- · Replies 6 ·
Dynamics problem - spring on a slope
- HmBe
- · Replies 1 ·
Definition of stationary state (for wave function quantum)
- AStaunton
- · Replies 1 ·
Electric Field, Potential Between 3 Charged Electrodes
- Bogus_Roads
- · Replies 5 ·
How Much Force Is Needed for a 450g Object to Accelerate at 8cm/s²?
- pdot
- · Replies 3 ·
Heating 5.0dl of Coffee Water: How long does it take?
- chawki
- · Replies 4 ·
Incline + Spring = Hours of Fun. Sort of.
- glossolalia
- · Replies 5 ·
Finding energy stored in capacitors without solving for current
- zorro
- · Replies 6 ·
Isothermal Expansion - Rev. or Irre. ?
- zorro
- · Replies 10 ·
Simple Harmonic Motion - Finding period of oscillation of block
- zorro
- · Replies 6 ·
Problem with physics acceleration
- pdot
- · Replies 2 ·
Possible Magnitudes for Resultant Vector
- ThomasMagnus
- · Replies 4 ·
What is the relationship between magnetic fields and wires?
- jmiller5001
- · Replies 3 ·
Identifying a black box circuit with a multimeter: battery/resistor or capacitor?
- rickyman
- · Replies 1 ·
Where to attach the leads for the equivalent resistor?
- dimpledur
- · Replies 6 ·
Two-ball collision problems using conservation of momentum
- Xtremeownage
- · Replies 1 ·
How long to heat 0.76 kg water by 15 C from a 41-Ohm resistance at 230 V
- chawki
- · Replies 5 ·
What is the effect of unequal charges on a parallel plate capacitor?
- bon
- · Replies 9 ·
Angular speed of hoop on rod rotating to inverted position
- bodensee9
- · Replies 6 ·
Force on pulley with particles on inclined plane
- T.S.M
- · Replies 1 ·
How should I use the 20° angle in this force vector problem?
- neurotikfisch
- · Replies 2 ·