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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How to differentiate b/w a conservative/non-conservative force?
- SciencyBoi
- · Replies 3 ·
Why use constant pressure specific heat when pressure varies
- yecko
- · Replies 3 ·
Components of the equivalent moment at a point
- Davidf77
- · Replies 3 ·
What is the acceleration of the blocks in a pulley constraint problem?
- Vriska
- · Replies 21 ·
Photoelectric effect calculation
- *now*
- · Replies 8 ·
What is the height and kinetic energy lost in a projectile-block collision?
- Ying99
- · Replies 1 ·
How can I find the torque/moment of force about an axis?
- GaussianSurface
- · Replies 23 ·
Calculating capacitance from an AC circuit
- imas145
- · Replies 7 ·
SHM Energy Conservation in a Spring
- emxlys
- · Replies 3 ·
Block on an inclined plane that is accelerating sideways
- FScheuer
- · Replies 27 ·
Optimal Angle and Horizontal Range of a Bottle Rocket Projectile
- EmmaB03
- · Replies 1 ·
Forces on a plane exerted by a ball
- blueblast
- · Replies 14 ·
Decibel Intensity level question
- BirdieGone
- · Replies 5 ·
Expressing the addition of two sinusoidal waves this form.
- Armin
- · Replies 4 ·
Calculating the maximum force of object 1 without prefix
- Marcos Leo
- · Replies 1 ·
555 timer duty cycle and square wave average value
- Mohamed Abdul
- · Replies 3 ·
Y coordinate of a charged particle
- Matt21
- · Replies 9 ·
Determine the angular speed ##\dotθ## of the arm OC
- Alexanddros81
- · Replies 3 ·
What is the angle and displacement of the plane?
- mathnerd21
- · Replies 1 ·
Electric power and internal resistance
- isorounded
- · Replies 4 ·
Norton equivalen circuit problem
- terryds
- · Replies 8 ·
Finding the uncertainty in delta y?
- SJay16
- · Replies 2 ·
Vectors, how to find average acceleration
- juju1
- · Replies 13 ·
Finding electric potential given two point charges
- Mickael14
- · Replies 2 ·
Strength of electric field given potential difference
- Mickael14
- · Replies 4 ·
Measuring the output from a Transistor Amplifier
- Pushoam
- · Replies 6 ·
Auto-closing gate with masses on inclined planes
- Zer0
- · Replies 42 ·
The rod OB rotates counterclockwise about O (Polar Coord.)
- Alexanddros81
- · Replies 5 ·
How Is Electricity Generated from Wind Energy?
- emxlys
- · Replies 2 ·
The collar B slides along a guide rod (Polar Coord.)
- Alexanddros81
- · Replies 3 ·
Particle in one-dimensional harmonic oscillator
- Muthumanimaran
- · Replies 7 ·
Static Friction carnival ride Problem
- Jack G
- · Replies 7 ·
Density of an ideal gas as a function of height
- Ian Baughman
- · Replies 17 ·
Peculiar Acceleration: Solving a Massless and Frictionless Pulley Problem
- Vibhor
- · Replies 3 ·
Electric Field of Equilateral Triangle
- Brendan Webb
- · Replies 2 ·
Work to pump out air from cylinder
- Stefan
- · Replies 3 ·
Why does the x origin shift between reference frames in special relativity?
- tesla111
- · Replies 2 ·
How does circuit resistance change when a lamp burns out?
- peterpan1492
- · Replies 9 ·
Collision of alpha with Be -> C + gamma
- Elvis 123456789
- · Replies 1 ·
Circular Motion and the Law of Gravitation -- question
- John Kim
- · Replies 1 ·
Two balls and a rod colliding with a ball
- Jahnavi
- · Replies 12 ·
Calculating 2D Momentum Collision with Unknown Speeds and Angles
- Theudius
- · Replies 4 ·
Lifting a Beam with a uniform weight distribution
- userAA
- · Replies 5 ·
What is the final velocity of a sail after being hit by photons from a star?
- Faiq
- · Replies 9 ·
Final Temperature of a monatomic gas
- patrickmoloney
- · Replies 5 ·
Length contraction of a spacecraft at 0.900c
- Matt21
- · Replies 9 ·
Inelastic collision and the sum of internal forces
- CGandC
- · Replies 6 ·
Calculating Minimum Thickness of a Thin Film Using Interference Patterns
- LippyKa16
- · Replies 5 ·
How Can Gravitational Acceleration 'g' Be Expressed Using Ball Passage Times?
- dante714
- · Replies 2 ·
Why does a reflected object appear luminous if we only see reflected light?
- Pushoam
- · Replies 4 ·
Current, voltage : brightness of bulb in parallel or series
- Barclay
- · Replies 2 ·
Limit of falling ball with linear air drag as αt→0
- Bestfrog
- · Replies 5 ·
How is wind speed related to electricity generation in a wind turbine?
- Marcin H
- · Replies 16 ·
Input characteristics of a BJT in CB mode
- Pushoam
- · Replies 3 ·
3 masses and an inclined pulley system
- Hdfjgf
- · Replies 2 ·
Zener Diode On: Understanding Current Flow in a Circuit
- Pushoam
- · Replies 4 ·
Capacitor voltage from food energy and LC oscillator current
- Mohamed Abdul
- · Replies 7 ·
How to avoid the use of a pseudo force
- timetraveller123
- · Replies 15 ·
How Are Friction and Angular Velocity Related in the Cube on Funnel Problem?
- Ahmed Farhan
- · Replies 10 ·
Finding Angle Theta in Relativistic Skydiving Scenario
- jlmccart03
- · Replies 18 ·
Electric Flux Equation for Rotating Loop?
- Rijad Hadzic
- · Replies 3 ·
Ball bounces several times on an inclined plane
- carlyn medona
- · Replies 8 ·
Positive or negative final velocity? Constant acceleration
- AnnaRiddle
- · Replies 8 ·
When 2 Cars With Differing Velocities Will Meet
- Kova Nova
- · Replies 3 ·
Maximum extension of system with two blocks connected by a spring
- carlyn medona
- · Replies 8 ·
Specific heat of diatomic gases and equipartion energy
- Dario SLC
- · Replies 1 ·
Bullet fired horizontally 50m at target 2cm below aim point
- rashad764
- · Replies 4 ·
Solving a Model Rocket Launch Problem
- Abscissas
- · Replies 9 ·
Calculating the Travel Time of High-Energy Particles Across Our Galaxy
- senatorarmstrong
- · Replies 1 ·
Projectile Motion: Determining Velocity and Distance at Different Angles
- Charlotte57
- · Replies 4 ·
Relationship Graph Between Frequency and Tension
- Stormblessed
- · Replies 10 ·
Velocity of a piston in a piston-shaft mechanism
- afaiyaz
- · Replies 10 ·
Forces on the slope of a triangular block
- caspeerrr
- · Replies 2 ·
What Experiment Validated Maxwell's Velocity Distribution?
- Tomic
- · Replies 1 ·
Static Friction/Determining Force
- Masrat_A
- · Replies 20 ·
Coefficient of restitution in two dimensions
- carlyn medona
- · Replies 2 ·
Rotational Motion in Newtonian Mechanics
- Student149
- · Replies 11 ·
How to get 2.86 seconds in this kinematics problem
- Jacob T Anderson
- · Replies 17 ·
Magnetic pressure on a conductor
- timetraveller123
- · Replies 28 ·
Velocity of an Electron between Two Plate
- doggydan42
- · Replies 3 ·
Which ball has more energy halfway through the track?
- Irfan Nafi
- · Replies 9 ·
Shifting of the center of mass of a system
- carlyn medona
- · Replies 19 ·
When can I use D=VT for distance with constant acceleration?
- Turkishking
- · Replies 7 ·
What is the Average of Cosine of Theta over a Specific Range?
- Pushoam
- · Replies 7 ·
Calculating Initial Velocity for a Basketball Free Throw - Projectile Motion
- Devin Humphreys
- · Replies 3 ·
Ball in Rotating Disk: Kinetic Energy, Work, and Power
- Bestfrog
- · Replies 9 ·
Calculate the flux through the surface?
- ehabmozart
- · Replies 14 ·
Why does a smaller gear experience half the force if it moves twice the distance?
- Jimmy87
- · Replies 9 ·
Average speed for a round trip at different speeds
- Ehsan Abedian
- · Replies 5 ·
A particle travels along a plane curve (Polar coordinates)
- Alexanddros81
- · Replies 6 ·
Thermodynamics: Water Properties
- engineering lord
- · Replies 1 ·
Angular momentum of a pulley system
- undividable
- · Replies 9 ·
Calculating the RMS Value of Sinewave Voltage
- Vladi
- · Replies 3 ·
Acceleration when car changes direction at constant speed
- ahmed emad
- · Replies 8 ·
Number of molecules moving in a given direction at a given speed
- Pushoam
- · Replies 1 ·
Practical Skills - Recording time with human error
- Jimmy87
- · Replies 5 ·
Flux Through A Sphere Surrounding A Parallelepiped
- madianned
- · Replies 4 ·
Effect of doping level on the width of the depletion layer
- Pushoam
- · Replies 4 ·
Projectile Motion Max Height and Range
- gooby99
- · Replies 1 ·
Is the Resistance of a Diode Higher in D.C. or A.C.?
- Pushoam
- · Replies 9 ·