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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Electric circuit explanation question involving voltage changes
- question dude
- · Replies 9 ·
Charge Between Two Conducting, Connected Shells
- Contingency
- · Replies 20 ·
Finding the magnitude and direction of current thro Kirchhoff law
- logearav
- · Replies 3 ·
Hydrostatic problem - Impossible integral
- jaumzaum
- · Replies 13 ·
How Does Moving at 20sqrt(2) m/s Affect the Projectile's Trajectory Equation?
- ShizukaSm
- · Replies 3 ·
Calculating Free Fall Motion on a Drop Ride: Solving for Velocity and Distance
- baird.lindsay
- · Replies 11 ·
Residual Gas in High Vacuum Systems
- Ryomega
- · Replies 1 ·
Validating the kinetic energy for the two particle collision problem
- Andreasdreas
- · Replies 5 ·
Convert 0.001 arcseconds to radians.
- ZedCar
- · Replies 3 ·
Kinetic energy ratio in collision between two cars
- teeheehee
- · Replies 7 ·
Calculating kinetic energy of a segment
- Saitama
- · Replies 4 ·
Where does constant voltage come from?
- Sanity1234
- · Replies 10 ·
How does air pressure affect pitch?
- sgstudent
- · Replies 4 ·
What do we mean when we say 1 kg of bananas ?
- PeterPumpkin
- · Replies 3 ·
Iron and plumbum (lead) on a balance in air and water
- martijn-arts
- · Replies 8 ·
F = MA Exam 2012 # 23 (Measuring local gravitational acceleration)
- SignaturePF
- · Replies 3 ·
Solving Force and Motion Problems with the SUVAT Equations
- Originaltitle
- · Replies 6 ·
Calculate the force on a circular surface
- jonjacson
- · Replies 4 ·
F = MA Exam 2012 #3 - (Triangle toppling down a plane)
- SignaturePF
- · Replies 5 ·
2012 F = MA exam #10 - (Rolling without slipping down a ramp)
- SignaturePF
- · Replies 6 ·
Finding relative star radius from magnitude with equal temperature
- DunWorry
- · Replies 5 ·
Why does the first resonance occur at λ/4 in a tube closed at one end?
- Vandalus
- · Replies 2 ·
Why does ∇'(1/X) equal x/X² in Griffiths derivation?
- nuclear_dog
- · Replies 2 ·
Understanding Heisenberg's Uncertainty Principle
- s3a
- · Replies 44 ·
Why does a box move at constant speed with zero net force?
- urbano
- · Replies 7 ·
Not enough information for question? [1st year special relativity]
- radiator0505
- · Replies 8 ·
Tension in legs of an insect dangling upside down
- coffeebird
- · Replies 3 ·
Classical Mechanics-Inclined plane tricky problem
- squareroot
- · Replies 44 ·
Moment of inertia particle problem
- ehabmozart
- · Replies 9 ·
When is it safe to use eV units and when do we have to convert eV units into kg?
- DunWorry
- · Replies 1 ·
Relationship between internal energy and PE and KE
- influx
- · Replies 3 ·
Work done on an object traveling down a slope
- Roo2
- · Replies 4 ·
What is the velocity of the mass in the lab's frame of reference?
- peripatein
- · Replies 10 ·
Circuits Question Node Voltage Method
- GreenPrint
- · Replies 4 ·
How Do Fictitious Forces Affect Bead Motion on a Circle in a Non-Inertial Frame?
- peripatein
- · Replies 22 ·
No idea what the textbook is doing
- phospho
- · Replies 1 ·
Bead sliding down a smooth cord.
- peripatein
- · Replies 21 ·
Finding peak wavelength and frequency of CMBR using Wien's law
- Fabio010
- · Replies 4 ·
Hydraulic piston pump force and ammonia gas pressure
- klebsiella
- · Replies 2 ·
What is the point of angling projectiles?
- urbano
- · Replies 6 ·
Why is momentum conserved in cases of linear and angular motion?
- VHAHAHA
- · Replies 4 ·
What is the Definition of No Slipping in Physical Terms?
- SecretSnow
- · Replies 22 ·
What Happens to a Simple Pendulum in a Freely Falling Box?
- utkarshakash
- · Replies 8 ·
Derive the following kinematics equation using the position and velocity equations
- tahayassen
- · Replies 3 ·
How Much Energy to Heat 4 Gallons of Water from 52°F to 145°F?
- supak111
- · Replies 12 ·
100kg Bike- torque needed to go up 10' slope
- kanthaka7
- · Replies 5 ·
How to find the time for a curved path ?
- Lolagoeslala
- · Replies 40 ·
At what angle does a ball on a massless pendulum reach equilibrium?
- tomstringer
- · Replies 5 ·
Planning and Designing a lab on Coupled pendulums
- lionely
- · Replies 6 ·
How do linear and angular speeds differ?
- Smileyxx
- · Replies 2 ·
Pendulum clock when taken to moon
- utkarshakash
- · Replies 4 ·
Does a particle flying off from circular motion retain tangential acceleration?
- SecretSnow
- · Replies 6 ·
True/False: Qualitative Thermodynamics Question
- yaylee
- · Replies 2 ·
Making a spool slide without rolling
- snowflake2357
- · Replies 2 ·
Fluid's temperature change in time.
- peripatein
- · Replies 3 ·
Simple Q-value calculation for n+14N -> 12C + t
- Silversonic
- · Replies 4 ·
Double blocks on a incline plane
- big_bounce
- · Replies 7 ·
What causes the change in direction of the magnetic field in motional emf?
- carlos125
- · Replies 4 ·
Weighted least squares formula derivation
- binbagsss
- · Replies 15 ·
CG of a cone ( using hollow cone)
- VHAHAHA
- · Replies 1 ·
MCQ about intensity of sound waves (formula manipulation)
- Originaltitle
- · Replies 5 ·
Problem 5.15 of Statistical Physics by Reif ( Calculation of entropy)
- nuclear_dog
- · Replies 3 ·
So, why is the potential decreasing as we move away from the origin?
- thunderhadron
- · Replies 3 ·
If we fix one end of a spring and apply some force on the free end
- davon806
- · Replies 3 ·
How Is the Fuel Level Angle Determined in a Turning Vehicle?
- beginner49
- · Replies 4 ·
Two charged spheres with different charges hang at different angles
- iknownth
- · Replies 3 ·
Hitting a moving target below when launched 100 m above at a 45 degree angle
- dwdeclare
- · Replies 2 ·
Man running up a wheeled block.
- peripatein
- · Replies 1 ·
Time for block of ice to reach 20 C in an isolating box.
- peripatein
- · Replies 11 ·
Weight on balance after submerging a stone in water
- songoku
- · Replies 6 ·
Potential Difference of Hollow Circular Cylinder
- rbrayana123
- · Replies 3 ·
How do I use this confusing elastic collision equation?
- SecretSnow
- · Replies 2 ·
Showing the sine-Gordon equation is satisfied.
- varth
- · Replies 4 ·
Force on Three Parallel Electrical Sheets
- rbrayana123
- · Replies 2 ·
Orbital Velocity Calculation for an Asteroid at Perihelion
- ZedCar
- · Replies 1 ·
Which Statement is Correct: Ram & Shyam Work & Power
- pratyushag
- · Replies 4 ·
What is the Minimum Velocity to Throw a Ball Over a Pitched Roof?
- theultimate6
- · Replies 18 ·
Mass to energy equivalence question
- eXmag
- · Replies 4 ·
Solving a 2kg Ball Collision Problem
- kehwon
- · Replies 12 ·
Been bothered by this equilibrium problem
- pigiamino
- · Replies 4 ·
Calculating Magnetic Force on Charged Particle in a Magnetic Field
- warnexus
- · Replies 31 ·
Finding resistance between two ends with series and parallel resistors
- Aditya3003
- · Replies 2 ·
Rate Of Change Of Current In An Inductor
- Spurs4ever
- · Replies 6 ·
Calculating Magnetic Field Strength in a Balanced System
- warnexus
- · Replies 5 ·
How Can You Calculate Minimum Cable Tension in a Catenary Equation Using Excel?
- Engineering01
- · Replies 11 ·
RC circuits - questions about the solution
- carlos125
- · Replies 7 ·
Equation of motion for two-bar system with spring and dampers using D'Alembert's principle
- ClopClop
- · Replies 1 ·
Does Kirchhoff's voltage law give electron flow and current law give conventional flow?
- wellcoughed
- · Replies 8 ·
What Are the Unknown Variables in a Circular Arc Pilot Dynamics Problem?
- Infamous911
- · Replies 6 ·
Find magnetic field strength and maximum force
- warnexus
- · Replies 4 ·
Conservation of Momentum in Elastic Collision at Angles
- nelson_qna
- · Replies 2 ·
Wavelength of New Laser with Diffraction Grating Measurement
- Kennedy111
- · Replies 1 ·
Max horizontal displacement of a projectile
- Phys student
- · Replies 1 ·
Problem with geometry in conservation of energy problem
- insomniac1
- · Replies 1 ·
The difference between bv and kv^2 drag
- Hannibal123
- · Replies 6 ·
Equation of motion with proportional drag
- Hannibal123
- · Replies 13 ·
How Far Did the Parachutist's Impact Occur from the Swimmer?
- whatwhat11
- · Replies 3 ·
Constant, Horizontal Force on Swing
- Frozen Stair
- · Replies 8 ·
Skier skies down slope, including friction, calculate final speed
- wiggle
- · Replies 3 ·
Angular Momentum of an object with respect to a moving point
- Tanya Sharma
- · Replies 4 ·