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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Maximum Distance for Man to Stretch Spring in Equilibrium
- decentfellow
- · Replies 9 ·
What is the acceleration of an electron in an electron gun?
- alijan kk
- · Replies 2 ·
General Relativity Problem (frames of reference)
- RJLiberator
- · Replies 3 ·
Friction coefficient for rolling ball in bowl without slipping
- Karol
- · Replies 90 ·
Archived How Do You Calculate the Phase Speed of Rossby Waves?
- Tsunoyukami
- · Replies 1 ·
Why does an α-particle gain 500 V from 1000 eV kinetic energy?
- moenste
- · Replies 4 ·
Average velocity of free particle
- mihailo
- · Replies 1 ·
How can we calculate the intercept time for a NEO on a hyperbolic trajectory?
- Imagin_e
- · Replies 7 ·
Why Are the Angles in a Minkowski Diagram Equal for Different Observers?
- Powergade
- · Replies 1 ·
Adiabatic expansion of an ideal gas
- Elvis 123456789
- · Replies 4 ·
Calculating Total Energy of an Electron Orbiting a Hydrogen Nucleus
- Clara Chung
- · Replies 5 ·
Electric potential at the vertex of a triangle
- math4everyone
- · Replies 3 ·
Angled desk sliding off horizontal desk without friction
- korec123
- · Replies 1 ·
Question on lightbulb brightness in circuit analysis
- RoboNerd
- · Replies 2 ·
Constant acceleration problem with a car
- Aman Abraha
- · Replies 7 ·
Is this the correct equation to find the electric field at point p from a dipole?
- novelriver
- · Replies 7 ·
Mass falling and pulling others on a rough surface
- Karol
- · Replies 7 ·
Finding distance of image from mirror given focal length
- RabbitWho
- · Replies 1 ·
Elasticity of a Wire spinning in a circle
- HoodedFreak
- · Replies 11 ·
How Does Proximity to a Van de Graaff Generator Affect an Insulated Conductor?
- Clara Chung
- · Replies 1 ·
Uncertainty in single slit diffraction
- Titan97
- · Replies 9 ·
Problem with friction on weighing machine
- decentfellow
- · Replies 8 ·
Finding angles for cross product magnitudes
- Jrlinton
- · Replies 3 ·
What Is the Difference Between an=w^2 x R and an=V^2 / R?
- tandennis0703
- · Replies 6 ·
Relative uncertainty (negative exponent)
- KevinFan
- · Replies 2 ·
Marble Stack Equilibrium: Solving for Forces at Contact Points
- HoodedFreak
- · Replies 19 ·
2 masses, a massive pulley and an inclined surface
- Karol
- · Replies 7 ·
How Far Did the Ball Roll in the First 5 Seconds?
- xforeverlove21
- · Replies 14 ·
Why equipotential lines are parallel to conductor surfaces
- edgarpokemon
- · Replies 9 ·
Rotational motion with inertial forces
- OnAHyperbola
- · Replies 7 ·
Suspension: Spring Constant Calculation for 500 kg Car
- Pao44445
- · Replies 5 ·
How Does Velocity Relate to Kinetic Energy in Projectile Motion?
- Stevemotto
- · Replies 22 ·
Which of the following is not an example of ionizing radiati
- Iron_Man_123
- · Replies 1 ·
Velocity of charge orbiting infinite line of negative charg
- space-time
- · Replies 3 ·
Kinematics Problem with Rockets
- Minestra
- · Replies 3 ·
How would i find the velocity of the ship relative to earth?
- ryan578
- · Replies 2 ·
Minimum time for rowing across a river and running
- Mr Davis 97
- · Replies 11 ·
Maximum angular velocity so that there is no stick
- Mr Davis 97
- · Replies 9 ·
What is the Gravitational Acceleration at a Height Equal to Earth's Diameter?
- Deebu R
- · Replies 38 ·
How Does the Time Period Change with Orbit Radius in Satellite Motion?
- Deebu R
- · Replies 10 ·
Understanding Gravitational Acceleration at Different Depths on Earth
- Deebu R
- · Replies 4 ·
Why do 2 crates pulled together have the same acceleration?
- Josh114
- · Replies 2 ·
Degrees of freedom of harmonic oscillator
- McLaren Rulez
- · Replies 6 ·
Lorentz transformation for two events observed from different train frames
- Jade45
- · Replies 2 ·
How does Newton's 3rd law apply in solving relative acceleration?
- mastrofoffi
- · Replies 4 ·
Why Are Currents Through 3 and 4 Ohm Resistors Zero in an Open Circuit?
- inter060708
- · Replies 25 ·
Finding maximum speed of v(t) = ate^(-3t)
- Minestra
- · Replies 3 ·
Young's double-slit experiment, fringe separation
- moenste
- · Replies 3 ·
Maximize the distance of projectile on a hill
- Mr Davis 97
- · Replies 5 ·
Applying work energy theorem to unifrom circular motion
- Vriska
- · Replies 2 ·
Mechanical Energy and Newton's Laws
- DumSpiroSpero
- · Replies 3 ·
How to calculate velocity from Mass and Force but no Time
- Scott Flood
- · Replies 12 ·
How to work out this impact force
- Lily May
- · Replies 17 ·
Magnitude of a vector in polar coordinates
- Mr Davis 97
- · Replies 8 ·
Calculating Velocity of Falling Grenade Fragments: Momentum Equation Solution
- Pao44445
- · Replies 3 ·
What variables are needed to find a moment?
- Alex Katko
- · Replies 7 ·
How Fast Can Electro-Fiasco I Travel 1 km from Rest?
- Mr Davis 97
- · Replies 5 ·
Why does charge become more negative when releasing the separator from the can?
- edgarpokemon
- · Replies 13 ·
What Is the Mass Flow Rate at Exit in a Steady Flow System?
- madzior771
- · Replies 1 ·
Entropy change and reversible/irreversible processes
- Erik Schildt
- · Replies 1 ·
Λ particle decay with time dilation and length contraction
- Elvis 123456789
- · Replies 2 ·
AC Output Voltage as function of frequency
- kenef
- · Replies 9 ·
How to calculate force exerted by ground
- AdeptDz
- · Replies 5 ·
Pressure Drop In Bulb : Application of Graham's Law
- Sanchayan Dutta
- · Replies 3 ·
What Is the Stopping Distance When Initial Speed or Friction Force Is Tripled?
- BlueQuark
- · Replies 6 ·
Solving Speed of a Truck Problem - Calculating Time to Brake
- Perry
- · Replies 5 ·
What does Gg represent?
- scienceNewbie0023
- · Replies 2 ·
Distance a bullet will travel while shot underwater
- Wanna_be_Feynman
- · Replies 1 ·
Speed of object X covering 28 million km in 0.0001 microseconds
- ScathanApprover
- · Replies 3 ·
Force acting on anode by electron current
- JulienB
- · Replies 16 ·
Motion in 1-D Problem: Tractor vs Tesla Collision Calculation
- Student1337
- · Replies 1 ·
Electron released into an electric field from rest
- Adam21197
- · Replies 1 ·
Perpendicular relativistic velocities
- Elvis 123456789
- · Replies 12 ·
How Much Power Is Needed to Lift a 1kg Object to 1 Meter?
- Nibesh sharma
- · Replies 14 ·
Why Does Moving a Negative Charge to a Higher Potential Increase Its Energy?
- Kelly McGuire
- · Replies 1 ·
Calculate net charge with nonuniform electric field
- ooohffff
- · Replies 4 ·
Velocity of Bead Relative to Wedge on a Smooth Hemispherical Surface
- Sanchayan Dutta
- · Replies 3 ·
Nonconducting spherical shell with uniform charge
- ooohffff
- · Replies 14 ·
Why assume zero potential at the surface of a charged dielectric sphere
- JaneHall89
- · Replies 2 ·
Do holes conduct electricity in metal?
- Happiness
- · Replies 1 ·
Archived (Optics) Vignetting and field of view
- Aelo
- · Replies 1 ·
Related Rates of Accelerations in Pulley Problem
- Alexanddros81
- · Replies 1 ·
Entropy change of helium heated by an immersed resistor
- JMatt7
- · Replies 5 ·
One second after vertical projection
- joshua772
- · Replies 1 ·
Man holding weight, rotating and bringing them closer
- Karol
- · Replies 6 ·
How Does Moving a Slider from Y to X Affect Potential Difference Across Lamps?
- GreenTea09
- · Replies 2 ·
Calculating Distance of a Brick on a Hill with Friction
- Pao44445
- · Replies 29 ·
Find heat produced on closing the switch S
- Sanchayan Dutta
- · Replies 12 ·
Gas inside an expandable cylinder raises lid on spring
- astrocytosis
- · Replies 7 ·
How Fast Must Muons Travel to Reach a Distant Target Without Decaying?
- Elvis 123456789
- · Replies 2 ·
Centripetal Force of a linear spring
- Christopher117C
- · Replies 8 ·
How would you find Va and Vb in the problem below?
- ryan578
- · Replies 2 ·
Electric field of dipole at position in xy-plane
- JulienB
- · Replies 3 ·
Two pulley and three mass system
- CAF123
- · Replies 6 ·
Average speed for a road trip with two segments
- dyavol33
- · Replies 13 ·
Atwood's machine with two connected discs
- lukast
- · Replies 1 ·
What is the maximum height a man can climb on a ladder before it slips?
- Karol
- · Replies 2 ·
What is the thickness of the styrofoam?
- kent davidge
- · Replies 17 ·
Calculating Tension Forces on Charged Balls Suspended by Strings
- Cglez1280
- · Replies 10 ·
Equilibrium Problem - Balancing Torques
- HoodedFreak
- · Replies 4 ·