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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Diagram confirmation - force of magnetism
- Meeeessttteeehh
- · Replies 2 ·
Net gravitational force on rocket between Earth and moon
- Specter
- · Replies 5 ·
Electric Field of a solid sphere of non-uniform surface density
- vtv
- · Replies 2 ·
Conservation of energy question -
- KieronB
- · Replies 3 ·
Calculate Average Temperature of Planet in 0.4 AU Orbit: Albedo 30%
- quasarLie
- · Replies 5 ·
A sailboat sets out from the U.S. side of Lake Erie
- HappyFlower
- · Replies 5 ·
Factor of safety for 25mm bolt in single shear with 60kN tension and 40kN loading
- Jonathan Green
- · Replies 29 ·
Angular Momentum of a conical pendulum.
- Satvik Pandey
- · Replies 7 ·
How do I solve for the angle, as a function?
- Phantoful
- · Replies 8 ·
Abstract Special Relativity, particle at rest and one moving
- Floris Meersschaert
- · Replies 16 ·
Operating cost for lights and coffee machines
- Meeeessttteeehh
- · Replies 6 ·
Calculate the minimum uncertainty
- Kaspar
- · Replies 5 ·
How does the slope of a V vs I graph relate to Ohm's law?
- LonelyElectron
- · Replies 7 ·
Uncertainty for a particle diffracted through a single slit
- GMarks
- · Replies 1 ·
Calculating the surface charge of a sphere and a conducting shell
- Potatochip911
- · Replies 5 ·
Does the centre of gravity affect nutation in a gyroscope?
- Taylor_1989
- · Replies 1 ·
How to Solve Newton's 3rd Law Pulley Problems?
- HydroMarioUSA
- · Replies 9 ·
Work done by man jumping from a cart
- Ameya Darshan
- · Replies 12 ·
What is the resonant frequency and peak current drawn
- Perodamh
- · Replies 3 ·
Hydrostatic pressure in a tilted tube
- Jahnavi
- · Replies 6 ·
Conservation of energy in x vs y direction
- Wes Turner
- · Replies 5 ·
Displacement of an object with certain Ek stopped by Frictional Force
- elia07
- · Replies 3 ·
How to find the length of the wire?
- lulu
- · Replies 9 ·
Finding the time period of this System
- Hydrous Caperilla
- · Replies 14 ·
What is k, the ratio of momentum before and after a ball bounces?
- Robin04
- · Replies 10 ·
Satellite and length of liquid column in a barometer
- Jahnavi
- · Replies 1 ·
A projectile's initial velocity without time?
- dritt
- · Replies 3 ·
Applying Gauss' Law for Calculating Work Req'd to Move Charge
- lawsonfurther
- · Replies 9 ·
Frequency of Wave on a Guitar String HW
- slw12
- · Replies 6 ·
Linear Motion Formulas for an Inclined Plane
- S313
- · Replies 11 ·
Gauss's Law and Parallel Line Charges
- goober
- · Replies 1 ·
Solar energy incident on a 0.75m² reflecting surface
- Richie Smash
- · Replies 4 ·
Which leftward wave cancels a rightward wave?
- Perseverence
- · Replies 20 ·
How do you know that the net force is moving to the right?
- Perseverence
- · Replies 7 ·
Find volume of pesticide after pressure decreases
- Richie Smash
- · Replies 3 ·
How to find the charge on each capacitor
- Fara_k2
- · Replies 3 ·
Approximating Damped Oscillator Time Period and Frequency with Large n
- Allan McPherson
- · Replies 5 ·
Equivalence of Derivations in the Wave Equation from Maxwell's Equations
- Valeria
- · Replies 1 ·
Longer pendulum, does frequency need to be increased or
- Perseverence
- · Replies 4 ·
What Is the Width of the Region on the Detector Hit by Neutrons?
- Pickled_Gorilla
- · Replies 3 ·
How does the sign convention work in ray optics?
- Mohammed Ayaz Quadri
- · Replies 6 ·
How Do You Calculate Work Done in a Thermodynamic Process?
- Iain123
- · Replies 3 ·
Linear Momentum to Angular Momentum
- brad hars
- · Replies 6 ·
Net gravitational force on rocket between Earth and Moon
- Physics345
- · Replies 18 ·
How Can Two Point Charges Be Arranged to Nullify Electric Field at the Origin?
- Ignitia
- · Replies 9 ·
Height where water stream hits building from distance d
- kat R
- · Replies 18 ·
How Does an Electric Heater Affect the Melting Process of Ice?
- yesgirl10
- · Replies 16 ·
Interpreting Molar Specific Heat number
- Taulant Sholla
- · Replies 4 ·
Energy required to make 2.0 kg of steam
- LonelyElectron
- · Replies 3 ·
A mass is dropped on a plate that's suspended from a spring
- Vriska
- · Replies 7 ·
How Does Friction Affect Train Acceleration?
- Claus Berner
- · Replies 1 ·
Exponential decay of a pendulum oscillation amplitude
- asilvester635
- · Replies 1 ·
Initial velocity if a performer clears a 30 m tall object
- DeathEater
- · Replies 44 ·
How to find the energy of capacitance?
- Coderhk
- · Replies 5 ·
1-D Kinematics Problem (Running to catch up to a bus)
- Civil_Disobedient
- · Replies 2 ·
Law of Conservation of Energy of a wind turbine
- ElegantSir
- · Replies 24 ·
How Can You Derive the Sine of Alpha from Two Inclined Plane Equations?
- Kam Jam
- · Replies 4 ·
Energy calculations for a skier on a hill
- Meeeessttteeehh
- · Replies 6 ·
How Much Work Does Ryan Do Lifting and Carrying Potatoes?
- LonelyElectron
- · Replies 7 ·
What is the Direction of Induced Current?
- max6333
- · Replies 12 ·
Why does dy = vit + ½at² give negative height for fountain water?
- dragon-kazooie
- · Replies 2 ·
Calculating Electric Field from Force on a Point Charge
- Benjamin
- · Replies 2 ·
Finding Amplitude of the Oscillation
- Hydrous Caperilla
- · Replies 14 ·
Force due to a chain falling on a table
- Suyash Singh
- · Replies 11 ·
Electric field magnitude between two charged disks problem
- Brystephor
- · Replies 3 ·
Finding the period (T) of a pendulum on Mars
- asilvester635
- · Replies 3 ·
Finding Acceleration Due To Gravity
- Dave Johnson
- · Replies 12 ·
Which Direction Should a Swimmer Head to Counteract a River Current?
- Balsam
- · Replies 5 ·
Time available to avoid iceberg collision at 15 mph
- Civil_Disobedient
- · Replies 1 ·
Potential Energies of Two Charged Cylinders
- Matt Chu
- · Replies 1 ·
What Determines Electric Field Strengths of Two Charged Rods
- miyayeah
- · Replies 3 ·
Circuits question, series vs parallel
- Falcon99
- · Replies 5 ·
Amplitude of SHM of a spring hung from a ceiling
- Vriska
- · Replies 3 ·
Minimum friction to roll an imperfect sphere on an incline
- Vriska
- · Replies 18 ·
How can volume stay constant when pressure doubles and temperature changes?
- ZiHao
- · Replies 5 ·
Angle of escaping electric field lines
- Matt Chu
- · Replies 19 ·
Simplifying the uniform electric field equation
- Goatscholar18
- · Replies 2 ·
Find the work done on a monoatomic gas in this P-V diagram
- Helly123
- · Replies 39 ·
Potential Difference b/w concentric shells -- confusion
- IonizingJai
- · Replies 4 ·
Momentum and bar chart representations
- Sam0209
- · Replies 5 ·
Oscillation of a Rod: Finding Frequency
- Fibo112
- · Replies 25 ·
Hooke's Law Lab Spring Constant Calculation
- Abhishekkkk__
- · Replies 3 ·
Verification for Net Force and Vectors?
- Meeeessttteeehh
- · Replies 9 ·
Pressures of a gas in cm of mercury
- Richie Smash
- · Replies 1 ·
Problems with electromagnetic fields
- CAT 2
- · Replies 6 ·
Angled Length Contraction (Relativity)
- Blanchdog
- · Replies 7 ·
How many kg Uranium is needed for 5kW produced?
- Narud
- · Replies 3 ·
Looking for feedback on selecting a good topic
- fatcats
- · Replies 1 ·
Rocket momentum through a cloud of particles
- EmanueleFWM
- · Replies 1 ·
Find the force P such that the disk rolls without slip
- Andres Padilla
- · Replies 1 ·
Induced EMF in a coil outside a solenoid
- cmb323
- · Replies 15 ·
Explanation of a torque of friction in a bearing
- bolzano95
- · Replies 1 ·
Finding the invalid fundamental equation in Callen problem 1.10-1
- andrewkirk
- · Replies 23 ·
Peak torque and power for an elevator motor
- JosefMartens
- · Replies 7 ·
Gauss' law for uniformly charged space
- Likith D
- · Replies 3 ·
Find the weight of a partially submerged cylinder
- Richie Smash
- · Replies 25 ·
How Do You Calculate Electric Field Strength and Direction?
- miyayeah
- · Replies 5 ·
Calculate Electric Flux from Point Charge to Plate:
- Faiq
- · Replies 3 ·
Mechanics problem -- a mass on a table that can freely move on wheels
- Clara Chung
- · Replies 4 ·