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 pulley system with two pulleys and two suspended masses
- member 731016
- · Replies 54 ·
Vector problem, magnitude of the force
- sHatDowN
- · Replies 30 ·
Tennis lob minimum velocity to reach point (11.86m, 3.47m)
- themethetion
- · Replies 39 ·
Trigonometric Relationship for Light Passing Through a Slab
- member 731016
- · Replies 2 ·
Solving Confusions on Pulling a Spool
- member 731016
- · Replies 90 ·
Flag orientation for a boat observer Vs a ground observer
- vcsharp2003
- · Replies 14 ·
Why does galactic dynamics require lim ρr^5/2=0?
- Chamarel Elna
- · Replies 1 ·
Simple Addition of Vector Forces on an Eye-Hook
- sHatDowN
- · Replies 26 ·
Finding the wave equation with given period and wavelength
- Yoseph Santoso
- · Replies 5 ·
Electric motor problem -- Power to accelerate a toy train
- member 731016
- · Replies 28 ·
How can I troubleshoot and verify my calculations for magnetic force?
- kevinm829
- · Replies 4 ·
Amplitude of a circular ripple at distance r from source
- member 731016
- · Replies 10 ·
How to prove that motion is periodic but not simple harmonic?
- vcsharp2003
- · Replies 51 ·
Why does the war-wolf reach its maximum speed at the vertical position?
- member 731016
- · Replies 19 ·
Acoustics Question Confusion (Test Q)
- Intel Xeon
- · Replies 3 ·
Infinite number of pairs of Force and distance R from AoR
- member 731016
- · Replies 13 ·
What kind of wire needed to prevent overheating?
- songoku
- · Replies 11 ·
Energy conservation law question with capacitor
- annamal
- · Replies 8 ·
Finding the work done by Spiderman
- member 731016
- · Replies 94 ·
Electric Flux through a semi-spherical bowl from a charged particle
- flamebane
- · Replies 16 ·
Equivalent capacitance of a circuit
- jolly_math
- · Replies 25 ·
Why do acceleration terms cancel in this friction equation?
- as2528
- · Replies 6 ·
A Cylinder Rolling in a V-Groove
- ThEmptyTree
- · Replies 11 ·
Pulley, two masses and an incline
- member 731016
- · Replies 10 ·
Energy Density with a Dielectric
- racecar_
- · Replies 5 ·
Sum of angles with x,y and z axis made by a vector
- rakesh
- · Replies 26 ·
Kinetic energy transfer from shockwave to secondary body
- KataruZ98
- · Replies 5 ·
Student sliding bag along floor in elevator
- member 731016
- · Replies 2 ·
Non-inertial observer inside train
- member 731016
- · Replies 12 ·
Angle of acceleration in non-uniform circular motion
- member 731016
- · Replies 8 ·
Kinetic Energy / Potential Energy / Total Energy question
- Muu9
- · Replies 14 ·
Converting a 200V barrier to eV for tunneling probability
- Addez123
- · Replies 9 ·
Solving kinematic formula for t
- member 731016
- · Replies 24 ·
Charge of 2 conducting spheres separated by a distance
- jolly_math
- · Replies 1 ·
Calculating Distance Travelled Using Electric Potential
- Jake357
- · Replies 9 ·
State whether the distance x for the block would be greater/less/same
- paulimerci
- · Replies 25 ·
Rotational inertia of square about axis perpendicular to its plane
- member 731016
- · Replies 52 ·
How to Correctly Solve for the Minimum Distance Between Two Electrons?
- Jake357
- · Replies 5 ·
Where should reaction force N be on a nut sliding on a rod
- compaq65
- · Replies 9 ·
Finding the launch angle for a projectile if the range is 3x the max height of the trajectory
- member 731016
- · Replies 12 ·
Solving for x in 0 = -1/8 + 3/8 x / (10^2 +x^2)^0.5
- OwlsInATrenchcoat
- · Replies 10 ·
Finding Charge Density on the Surface of a Slab
- LulaBell
- · Replies 3 ·
Electric field of a cylinder given the electric field of a ring
- notgoodatphysics
- · Replies 3 ·
Points of inflection on acceleration graph
- member 731016
- · Replies 12 ·
Describing path of the object in an xy plane
- member 731016
- · Replies 7 ·
Are lost volts the difference between EMF and terminal potential difference?
- homeworkhelpls
- · Replies 4 ·
Can elastic collision formulas for energy and momentum be used interchangeably?
- as2528
- · Replies 6 ·
Why energy conservation alone gives wrong answer for elastic collision
- as2528
- · Replies 4 ·
Why does a wrist have 3 degrees of freedom?
- Alex8932
- · Replies 5 ·
A complicated problem of motion on rough surfaces
- Sihas N
- · Replies 7 ·
Find velocity-time equation from velocity-position equation
- MatinSAR
- · Replies 11 ·
Circular motion in planets and satellites
- hplover17
- · Replies 20 ·
Why does the solution give F = −mkv instead of F = −mkx/Δt?
- member 731016
- · Replies 14 ·
Magnitude of the Line Charge Density of a Power Line
- frankifur
- · Replies 3 ·
Why is my answer 15 + 3√15 when it should be 15 − 3√15?
- ryanpruette
- · Replies 17 ·
Tension in a spring that's bent into a semicircle
- phantomvommand
- · Replies 10 ·
Two carts are forced apart by a compressed spring
- paulimerci
- · Replies 21 ·
Work done by pressure force in Bernoulli's equation
- Callmelucky
- · Replies 61 ·
Why is my circular motion radius 3.24 meters for a bug?
- Wzss
- · Replies 8 ·
How does tire pressure affect distance traveled by a bicycle coasting to a stop?
- tymi9
- · Replies 31 ·
How is Wave Intensity Affected by Half Amplitude and Double Frequency?
- homeworkhelpls
- · Replies 16 ·
Momentum in a perfectly inelastic collision
- as2528
- · Replies 6 ·
Find the total time taken and acceleration in the given problem-Kinematics
- chwala
- · Replies 3 ·
Determining Current Direction in a Charging RC Circuit
- jolly_math
- · Replies 1 ·
How to Solve IGCSE Lens q with Unspecified Distance
- S2100595
- · Replies 4 ·
Finding the potential difference in a circuit
- jolly_math
- · Replies 4 ·
Find the magnitude of the momentum change of the ball?
- paulimerci
- · Replies 2 ·
Showing that this equation is a solution to the linear wave equation
- member 731016
- · Replies 15 ·
Balance of forces for two charged spheres hanging from the ceiling
- MatinSAR
- · Replies 18 ·
Struggling With Part C of Electric Field Calculation
- johnio09
- · Replies 2 ·
Ranking charge stored on three capacitors by a battery
- member 731016
- · Replies 6 ·
Finding charge on a capacitor given potential difference across two points
- member 731016
- · Replies 4 ·
Finding possible combinations of capacitors given circuit capacitance
- member 731016
- · Replies 3 ·
Discontinuity in an Electric line of force
- vcsharp2003
- · Replies 12 ·
Charge upon a parallel plate capacitor
- Pushoam
- · Replies 18 ·
Force between the plates of a capacitor with dielectric slab inserted
- Pushoam
- · Replies 32 ·
Capacitance of a parallel plate capacitor with a metal plate kept inside
- Pushoam
- · Replies 11 ·
Find momentum transfer and force on the head with and without a helmet
- paulimerci
- · Replies 19 ·
Percentage change in the density of a gas
- patric44
- · Replies 5 ·
Incompatibility between ideal gas equations of state
- Portuga
- · Replies 2 ·
Centrifugal and inertial force in centrifuge
- member 731016
- · Replies 6 ·
Graph for sinusoidal wave travelling to the left
- member 731016
- · Replies 13 ·
Floating sealed glass bottle with 60% above water
- Callmelucky
- · Replies 15 ·
Find the final velocity of the bobsled after the last bobsledder jumps in
- paulimerci
- · Replies 38 ·
Rigid Body Problem Involving a Tilted Rotating Disc
- Peter564
- · Replies 10 ·
Why is electric field at the center of a charged disk not zero?
- vcsharp2003
- · Replies 4 ·
Why is φ Assumed to Be 90 in the Undamped Forced Oscillator Solution?
- member 731016
- · Replies 6 ·
Exploring the Relationship between Buoyancy Force and Gravitational Force
- Callmelucky
- · Replies 5 ·
Differentiating the equation for the mechanical energy of a spring
- member 731016
- · Replies 15 ·
Puck collision with rod using angular momentum conservation
- member 731016
- · Replies 32 ·
Driving force from buzzer for jacket of length L
- member 731016
- · Replies 2 ·
Electric force on the charge kept at the centre of a metallic shell
- Pushoam
- · Replies 32 ·
Placing rock under ladder to stop it from slipping
- member 731016
- · Replies 10 ·
Motional EMF in the presence of a time-varying magnetic field
- ocmaxwell
- · Replies 11 ·
A book rests at an angle against one side of a bookshelf...
- madge
- · Replies 2 ·
Would a marble need the same speed as a car at the bottom of a vertical loop?
- Hippo89
- · Replies 7 ·
How to Solve a 100m Dash Kinematics Problem with Unknown Acceleration?
- Mjusttheletter
- · Replies 14 ·
Solving an Air Pressure Question: Who Is Right?
- Callmelucky
- · Replies 5 ·
Electric field at a point close to the centre of a conducting plate
- Pushoam
- · Replies 7 ·
Calculating Electric Potential for a Non-Negligible Thickness Toroid
- member 731016
- · Replies 4 ·