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 Much Vertical Acceleration Does a Jet Need to Avoid a Hill?
- KukyZ
- · Replies 2 ·
How Does Coriolis Force Influence Particle Motion in Rotating Systems?
- Bling Fizikst
- · Replies 3 ·
2 Masses attached by a spring in the vertical axis
- Sam Jelly
- · Replies 8 ·
Minimum work done to push the cube over
- hello478
- · Replies 14 ·
Gauss' Law for a conducting / non-conducting sheet
- laser
- · Replies 5 ·
Is the Charge Conservation Correct in This Meson Decay Feynman Diagram?
- songoku
- · Replies 8 ·
Find the value of ##t## when ##P## returns to ##X##- Kinematics
- chwala
- · Replies 25 ·
Find the tension in the rope PQ
- chwala
- · Replies 7 ·
How Do You Correctly Cancel Angular Momentum in Physics Problems?
- pbnj
- · Replies 3 ·
Acceleration due to gravity at different altitudes
- hello478
- · Replies 23 ·
Calculate voltage over capacitor and resistance
- Sailhill
- · Replies 7 ·
Solve the problem involving the velocity - time graph
- chwala
- · Replies 3 ·
Two blocks with spring between them energy problem
- hello478
- · Replies 12 ·
How Is Work Calculated on a Conveyor Belt with Friction?
- hello478
- · Replies 53 ·
Find the initial velocity ##U##
- chwala
- · Replies 3 ·
How Does Energy Transform in a Bungee Jump?
- hello478
- · Replies 7 ·
2 Masses and a Wheel (with mass)
- PhDeezNutz
- · Replies 6 ·
Horizontal force by block on a beam
- hello478
- · Replies 45 ·
Calculate the frequency of rotation when a coin flies off a turntable
- M1N
- · Replies 8 ·
Trouble solving for end state of two control volumes in a rigid tank
- calzone41
- · Replies 12 ·
Block and spring connected by pulley system
- tellmesomething
- · Replies 52 ·
Find the value of ##T## and distance of particle in the first ##4## seconds
- chwala
- · Replies 2 ·
A small disk and a bigger half disk
- billtodd
- · Replies 9 ·
Making sense of sequence of ideas in MIT OCW's 8.02 notes on Faraday
- zenterix
- · Replies 1 ·
Rotating ball and string Rotational Kinetic Energy?
- Vontox7
- · Replies 6 ·
Why Isn't the Spring Force Sum of Both Ends?
- cestlavie
- · Replies 5 ·
What is the induced magnetic force on this closed current loop?
- zenterix
- · Replies 12 ·
Calculating the spring force constant K
- lingo
- · Replies 14 ·
Determining Inductance L in an LC Circuit
- dragonshadowbob
- · Replies 5 ·
Why does power equal force times velocity?
- hello478
- · Replies 38 ·
How Do Power, Force, and Velocity Interact?
- hello478
- · Replies 14 ·
The ratio between two horizontal speeds in this pendulum arrangement
- billtodd
- · Replies 1 ·
Inelastic collision of two squares
- billtodd
- · Replies 14 ·
Two bodies connected with an elastic thread moving with friction
- HighPhy
- · Replies 6 ·
How to obtain correct negative sign in calculation of motional emf?
- zenterix
- · Replies 2 ·
Normal force at the base of a ladder
- iceice655
- · Replies 20 ·
How Does Spring Compression Relate to Energy Changes?
- hello478
- · Replies 4 ·
Arrow being fired to centre of target
- hello478
- · Replies 6 ·
Change in the kinetic energy of a car driving up a hill
- hello478
- · Replies 3 ·
Horizontal force on hinge is affected by moving the block farther away?
- hello478
- · Replies 11 ·
Spring-block system: why doesn't M1 move when spring force acts on it?
- tellmesomething
- · Replies 35 ·
Force components for mass attached to two springs
- giraffe714
- · Replies 15 ·
Molecular speed distribution - most probable speed V
- greg997
- · Replies 13 ·
Which way does this coil turn in a magnetic field?
- maxelcat
- · Replies 2 ·
Compare rotational inertia of 2 paper cups in 2 diff orientations
- dcmf
- · Replies 12 ·
Are the Force Equations for Rotational Motion Accurate?
- Bling Fizikst
- · Replies 24 ·
Particle projected from above a dome
- Bling Fizikst
- · Replies 38 ·
Avg Power in a Rotational Energy/Work Problem
- dcmf
- · Replies 6 ·
Why do I get opposite normal forces at the top and bottom of a Ferris wheel?
- Iamconfused123
- · Replies 8 ·
Why Does Light Diminish with a Phase Difference of 5λ?
- femaleinstemneedhelp
- · Replies 6 ·
Rolling disk: dynamics and energy analysis give different answers
- Taulant Sholla
- · Replies 9 ·
How to Calculate Water Leakage in an Inverted Bottle Experiment?
- evelynhott
- · Replies 55 ·
Determine the velocity of a package dropped from a satellite
- madsb2
- · Replies 6 ·
Finding force between solenoid and magnet
- Mitchell Richardson
- · Replies 2 ·
Elliptical motion in polar coordinates
- lorenz0
- · Replies 10 ·
Why Does Calculating Torque at the Ladder's Contact Point Not Work?
- sachin
- · Replies 5 ·
Cantilevered and line-loaded steel beam
- Kalle
- · Replies 19 ·
Proving the gravitational force of a solid sphere using integration
- Sam Jelly
- · Replies 5 ·
Escape Velocity from Earth starting from its Centre
- Priyo137
- · Replies 27 ·
Why Is Deriving the Motion Formula for Hoops More Complex?
- lsie
- · Replies 4 ·
Electron motion on axis of a charged ring
- Ben2
- · Replies 7 ·
Work energy theorem problem -- Block sliding up a curved incline
- tellmesomething
- · Replies 10 ·
For a translating block with slipping find the maximum force F
- annamal
- · Replies 2 ·
Fundamental electrokinetics problem calculation using Ohm's Law
- annin
- · Replies 4 ·
Direction of electric field vector on the surface of charged conductor
- laser
- · Replies 9 ·
Why does a stone stuck in a tire accelerate upward, not backward?
- amandela
- · Replies 10 ·
Resonance of a cube floating on water under external force
- tanhanhbi
- · Replies 8 ·
Verifying that Newton's Equations are equivalent to the EL equations
- Hamiltonian
- · Replies 15 ·
Coulomb's law and energy - potential energy
- laser
- · Replies 5 ·
Finding recoil velocity of mass with three ejected fragments
- I_Try_Math
- · Replies 7 ·
How Does a Pulley System Affect Scale Readings?
- orazon
- · Replies 8 ·
Intensity of central maximum when width of single slit is doubled
- songoku
- · Replies 13 ·
Deriving ODEs for straight lines in polar coordinates for a given Lagrangian
- Hamiltonian
- · Replies 8 ·
Force on rectangular loop by a current in a long straight wire
- cherry
- · Replies 4 ·
Net magnetic force on circuit segment due to 2 parallel wires
- risakapal
- · Replies 6 ·
Measurements Calculation Problem
- Ascendant0
- · Replies 3 ·
A massless disk with an embedded particle rolls down an inclined plane
- annamal
- · Replies 17 ·
Torque question in Deltoid muscle
- dcmf
- · Replies 7 ·
Why do two methods give different initial vertical velocities in projectile motion?
- McMaster27
- · Replies 6 ·
How did Cavendish find the density of the Earth?
- marc873a
- · Replies 24 ·
Average momentum of an avalanche
- I_Try_Math
- · Replies 5 ·
Finding the constants of the general approximate solution to a double pendulum
- giovanna
- · Replies 1 ·
Calculate the average force on the side walls of a container
- patric44
- · Replies 5 ·
Find tension using sum of torque (two strings, one beam, one box)
- dcmf
- · Replies 2 ·
How do you prove ##\lambda = \frac {2L} {n} ## given only L?
- Danielk010
- · Replies 3 ·
Equation of resistance from given graph
- Aurelius120
- · Replies 4 ·
Conical pendulum at 70 degrees finding period
- daisy7777
- · Replies 4 ·
Find the distance a particle travels
- figuringphysics
- · Replies 15 ·
Finding the x component of position vector
- hraghav
- · Replies 3 ·
Uniform Circular Motion: Tension Force at Top of Circle
- daisy7777
- · Replies 4 ·
Find the phase difference between these two sine waves
- hello478
- · Replies 21 ·
Frames of Reference: Using tie-downs to hold a load on a flatbed truck
- daisy7777
- · Replies 3 ·
Phase difference between two light waves of the same frequency
- hello478
- · Replies 12 ·
Wave movement and particle movement
- hello478
- · Replies 23 ·
Finding focal length from di v. M graph
- blank44544
- · Replies 1 ·
Finding slip-off angle for mass off of sphere?
- giraffe714
- · Replies 7 ·
How Does Impulse Relate to Momentum Change in Physics Problems?
- wgajtdb311
- · Replies 7 ·
Why does a hockey puck conserve energy if friction causes it to stop?
- sky
- · Replies 9 ·
Why Do Capacitors Behave Differently in Series and Parallel Configurations?
- sdfsfasdfasf
- · Replies 20 ·