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 double-slit (Young experiment) problem
- physicist10
- · Replies 9 ·
How Many Interference Fringes Are Observed in a Wedge-Shaped Film of Air?
- Malby
- · Replies 3 ·
Calculating Rotational Kinetic Energy: A Merry Go Round Example
- mizzy
- · Replies 5 ·
Effective resistance of secondary circuit in transformers
- sarah68
- · Replies 2 ·
Current Decay in an R-L Circuit
- sdalglish13
- · Replies 1 ·
What Velocity Is Needed to Escape Earth's Gravity?
- zephyrous
- · Replies 3 ·
Fully perfect elastic collision
- madah12
- · Replies 3 ·
How does Kirchhoff's Loop Rule apply to an AC generator with a resistor?
- Pete_01
- · Replies 2 ·
Faraday's law to find direction of current
- Sheve
- · Replies 3 ·
Calculating Kinetic Energy in a Spring Compression Problem
- Nicholson
- · Replies 1 ·
How Does Rotating Frame Affect Friction and Heat Generation?
- PhMichael
- · Replies 9 ·
How can the energy at the beginning be zero
- seto6
- · Replies 1 ·
Distance Travelled by Car from A to D
- thereddevils
- · Replies 7 ·
Torque from a fish on a 2.00m pole at 20 degrees
- mizzy
- · Replies 2 ·
What Causes an Electron to Change Direction in an Electric Field?
- Neesha
- · Replies 10 ·
How Does Kirchhoff's Law Apply to Circuits with Multiple Batteries?
- Thrax
- · Replies 14 ·
Calculating the velocity of a bowling shot
- Tsmit512
- · Replies 5 ·
How high will the piston rise if its temperature is increased?
- kagnaroos
- · Replies 6 ·
How Is the Minimal Distance Between a Proton and a Nucleus Determined?
- Alexstre
- · Replies 2 ·
Calculating Heat Flow Through a Block of Material
- mizzy
- · Replies 1 ·
Thin Film Problem: Find Minimum Thickness for Light Transmission
- physicist10
- · Replies 2 ·
Thermal conductivity and specific heat capacity
- hanson
- · Replies 2 ·
Specific Heat / Thermal Conductivity
- LittleTuc
- · Replies 8 ·
Solving a Problem with Transformer Load Resistance and Source Resistance
- RigelulZ
- · Replies 2 ·
What is the Minimum Electric Potential Needed to Stop an Alpha Particle?
- coreluccio
- · Replies 2 ·
Physics - Calculus question - Convservation of energy
- PhysicsPrac
- · Replies 9 ·
What Is the Net Entropy Change in a Two-Step Gas Process?
- Faux Carnival
- · Replies 3 ·
How can I achieve the desired distortion of an object using light refraction?
- navand
- · Replies 1 ·
Second order nonlinear differential equation problem
- bilgek33
- · Replies 17 ·
Find the voltage across a capacitor in a LRC circuit
- splatcat
- · Replies 7 ·
How Do You Calculate Light Absorption by Water Per Unit Depth?
- dobbinatrix
- · Replies 1 ·
How Does Water Pressure and Flow Rate Affect Rotational Sprinkler Dynamics?
- Windseaker
- · Replies 13 ·
Changing angle to seek a moving target position
- vonWolfehaus
- · Replies 1 ·
Can Interference Patterns be Observed with Sound Waves?
- arkofnoah
- · Replies 13 ·
How do electrons slow down before reaching a resistor?
- Tusike
- · Replies 3 ·
A few simple work/energy questions~
- Follz20
- · Replies 3 ·
How High Does the Ball Rise in a Rotating Bowl?
- Isiudor
- · Replies 3 ·
Speed of a transverse wave along a wire?
- coffeem
- · Replies 6 ·
Finding position, velocity and acceleration in simple harmonic motion at t = 3.5 ms
- coffeem
- · Replies 4 ·
2 Dielectrics in a Parallel Plate Capacitor
- Bobbert
- · Replies 4 ·
Calculating Spring Displacement with Added Mass in Simple Harmonic Motion
- thesandalman
- · Replies 1 ·
Finding Rotational Inertia with Thin Rod: Explanation and Example
- pirates01
- · Replies 1 ·
How Does the Central Maximum Shift When a Laser Beam's Angle Changes?
- physics2011
- · Replies 1 ·
What Can We Learn About Wave Speed from a Vertical Standing Wave?
- arkofnoah
- · Replies 4 ·
An electron traveling at a speed of
- atoreta88
- · Replies 3 ·
Net force on skateboarder at various points on a circular ramp
- Isiudor
- · Replies 3 ·
Why is it Easier to do Sit-Ups with Hands on Stomach?
- 9giddjl
- · Replies 2 ·
Capacitor Physics: Calculating Potential at Point P with Charged Cylinders
- minifhncc
- · Replies 5 ·
Understanding Static Electricity and Charge Interactions
- harimakenji
- · Replies 16 ·
How Do You Calculate Total Acceleration of a Particle on a Circular Path?
- Sheen91
- · Replies 5 ·
Finding Vf when you dont have distance and only height without numerical value
- joseernesto
- · Replies 11 ·
Can Complex Equations Be Solved Using Software?
- lorik
- · Replies 2 ·
What Velocity Must the Bullet Have to Swing a Block to 40 Degrees?
- Ry122
- · Replies 4 ·
Fluid Dynamics - Multiple Pipe System Need
- drd3kf
- · Replies 1 ·
Final temperature when 75 g ice melts in 330 g water at 22°C
- jinx007
- · Replies 7 ·
Masses hanging from ceilings by strings
- gedanken6
- · Replies 2 ·
Determine the tension in the pendulum string
- Ry122
- · Replies 3 ·
Can a 60W 120V Appliance Surpass the Max Household Current and Blow a Fuse?
- labview1958
- · Replies 11 ·
How does a scale measure normal force in accelerating elevators?
- OneWD
- · Replies 10 ·
Are astronauts weightless in orbit?
- mizzy
- · Replies 6 ·
Multiple loop circuit with grounded point
- j-so16
- · Replies 1 ·
Need to find the EPE, electric field and the work of the charges
- joseernesto
- · Replies 1 ·
Non linear motion ( Physics olympiads question )
- leucocyte
- · Replies 20 ·
What is the voltage of the car in Ohm's Law Application Problem 1?
- iwan2learn
- · Replies 2 ·
What Are the Correct Launch Parameters for a Hollywood Daredevil's Canyon Jump?
- lizbette
- · Replies 6 ·
How to Calculate a Skier's Speed at the Bottom of a Slope?
- joseernesto
- · Replies 2 ·
Why does reducing air resistance by a factor of 4 give acceleration of 3F/4m?
- jerryez
- · Replies 2 ·
Finding Friction Force in a Flexible Hinge with Mass
- mechaniXx
- · Replies 1 ·
Buckingham PI Theorem proof - Dimensional Analysis
- Grand
- · Replies 1 ·
3 unknown forces acting on a beam
- a_hargy
- · Replies 16 ·
Binding energy vs Kinetic energy
- hasan_researc
- · Replies 4 ·
Calculating Changing Velocity of a Rocket on Excel
- Procrastinate
- · Replies 1 ·
Calculate Pressure of Interstellar Hydrogen Gas at 3K
- hasan_researc
- · Replies 3 ·
The effect of mass on roller coaster cars
- agbuyer
- · Replies 6 ·
How Does a Tin Can Phone Transmit Sound?
- fattydq
- · Replies 4 ·
What is thermal motion?
- hasan_researc
- · Replies 2 ·
Displacement of airplanes in opposite directions.
- 321drought
- · Replies 6 ·
Solving an Integration Error with Acceleration Data
- mark2468
- · Replies 7 ·
Swimming across a river question
- ninetyfour
- · Replies 1 ·
Total heat capacity of an monatomic gas?
- coffeem
- · Replies 8 ·
Entropy chance with a carnot cycle?
- coffeem
- · Replies 3 ·
Ball with spin colliding with wall: angular momentum conservation
- PhMichael
- · Replies 9 ·
Electric dipole in an electric field
- vladimir69
- · Replies 4 ·
Will the book and the note separate? Why or why not?
- Red_CCF
- · Replies 17 ·
What Is the Formula That Links Sound Wave Power and Frequency?
- Werg22
- · Replies 3 ·
Calculating Energy Release from Nuclear Fission
- jinx007
- · Replies 1 ·
A small postage stamp is placed in front of a concave mirror
- atoreta88
- · Replies 4 ·
When to set c=1 vs c=3×10⁸ m/s in spacetime interval problems?
- seto6
- · Replies 2 ·
Time it takes for the wheel to stop?
- sona1177
- · Replies 8 ·
How does relativity affect simultaneity in a frame of reference?
- seto6
- · Replies 1 ·
Calculating a Square Root Without Calculator
- bjnartowt
- · Replies 3 ·
Calculating time period in vertical circular motion
- taninamdar
- · Replies 2 ·
Angular velcoity of point masses
- mizzy
- · Replies 12 ·
Component vectors positive or negative and angles positive or negative
- Who,me?
- · Replies 5 ·
Work to rotate a dipole in an electric field
- lachy89
- · Replies 2 ·
Intensity of Light- What factors contribute?
- AznBoi
- · Replies 4 ·
Mag force between two wires with opposite charges
- fm621
- · Replies 7 ·
How to calculate fuel to accelerate a vehicle
- IMK
- · Replies 13 ·
What is the wave speed and string velocity for y(x,t) = 3e^-(2x-4t)^2?
- Faux Carnival
- · Replies 3 ·
How Do You Calculate EMF in a Circuit with a Resistor?
- pat666
- · Replies 3 ·