Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Frequency of a mass bobbing up and down in water
- nfcfox
- · Replies 2 ·
Acceleration of 895 N crate pushed at 21° angle with friction
- vvvivvvian
- · Replies 2 ·
Find the potential, kinetic, and mechanical energy
- Angela_vaal
- · Replies 22 ·
Calculating Lung Capacity in Liters: Freshwater Buoyancy Volume Question
- NY152
- · Replies 5 ·
Elastic and gravitational potential energy
- Pratik89
- · Replies 49 ·
What is the acceleration of the block?
- Angela_vaal
- · Replies 3 ·
Minimum radius of bubbles in a soda bottle (surface tension)
- omoplata
- · Replies 6 ·
Radio Broadcast Antenna Peak Intensity
- Minescrushessouls
- · Replies 7 ·
Find the average force of a golf club on a golf ball
- Jrlinton
- · Replies 9 ·
Calculate the area of water suspended at 500m to produce 23TWh
- HorseRidingTic
- · Replies 2 ·
By how much does your force change the kinetic energy
- emily081715
- · Replies 7 ·
Impulse with snowballs hitting a wall
- Jrlinton
- · Replies 3 ·
Acceleration of a Mass in a Pulley System
- ssmooc
- · Replies 6 ·
Find final speed using mechanical energy formula
- Angela_vaal
- · Replies 10 ·
Three slit minima and maxima and path differences
- nso09
- · Replies 2 ·
Interference on a mirror -- waves confusion
- nso09
- · Replies 6 ·
Shear: What would be the equation for ''pure'' torque?
- kamhogo
- · Replies 9 ·
Curious about the answer in this voltage question
- horsedeg
- · Replies 6 ·
Final temperature after two hot metal balls enter cool water
- Ugnius
- · Replies 18 ·
Three-particle decay and momentum
- joseph_kijewski
- · Replies 4 ·
Finding moment of inertia of a wheel from a falling mass
- archaeosite
- · Replies 6 ·
How High Can a Dog Jump by Exerting Maximum Force?
- emily081715
- · Replies 7 ·
Potential difference due to a continuous charge distribution
- Alec11
- · Replies 7 ·
What is the kinetic energy of the center of mass
- emily081715
- · Replies 3 ·
Uniform chain rising with constant velocity
- Dustgil
- · Replies 3 ·
Relationship of slit, wavelength, and intensity
- nso09
- · Replies 5 ·
Firework problem, conservation of energy?
- Jrlinton
- · Replies 18 ·
Law of conservation of energy problem [reupload]
- Kianlos
- · Replies 3 ·
Why Doesn't the Line Extend to the Zero Point on the Angular Acceleration Graph?
- Kristjan Tervonen
- · Replies 18 ·
Cylinder carrying volume and surface current, H field
- cacofolius
- · Replies 2 ·
What happens to the speed and time of a satellite orbiting closer to Earth?
- Kajan thana
- · Replies 19 ·
Finding hanging mass for fourth harmonic in string with oscillator
- Efast
- · Replies 5 ·
Why is this calculation of the enthelpy of combustion wrong?
- Buffu
- · Replies 4 ·
Turntable Rotating on Shaft Problem
- BrainMan
- · Replies 5 ·
Using Kirchoff's laws to find current in complex circuit
- NihalRi
- · Replies 1 ·
Finding the Minimum Work Done for a Thermodynamic Process
- Potatochip911
- · Replies 6 ·
Finding the tension in a rope attached to a gate underwater.
- pressurised
- · Replies 2 ·
Determining hydrostatic force on a sphere
- thebrennus
- · Replies 2 ·
Finding the third angle when light exits a prism with refractive index 2.42
- SpiraRoam
- · Replies 2 ·
Calculating tension in a wire holding beam against wall
- mashedpotato
- · Replies 2 ·
Lagrangian of two masses connected by string on inclined pln
- Elvis 123456789
- · Replies 1 ·
When is Energy/Momentum/Angular Momentum really conserved?
- minimario
- · Replies 2 ·
Determine the force in a pulley system
- Zheng_
- · Replies 1 ·
Rotational Motion (Neutron Star)
- patrickmoloney
- · Replies 1 ·
Rotations from angular acceleration and final angular velocity
- NY152
- · Replies 3 ·
What is the equilibrium force exerted by the muscle in holding a ball?
- pixietree
- · Replies 6 ·
Two point charges and electric potential difference
- NihalRi
- · Replies 2 ·
Find the Maximum of Superposition of Waves
- TheDemx27
- · Replies 2 ·
How do I use rev/min units in the centripetal acceleration equation?
- dirk_mec1
- · Replies 20 ·
Cable car with 2 cable arrangement
- konglongjiqiche
- · Replies 1 ·
Millikan Oil drop lab experiment - equation for speed of drop
- Especial
- · Replies 3 ·
Finding the ratio of thicknesses of films (destructive)
- nso09
- · Replies 4 ·
The width of a finite potential well
- TheSodesa
- · Replies 8 ·
Finding Average Temperature Using Boltzman Constant
- gspsaku
- · Replies 21 ·
Heat absorbed by an ideal gas in a cycle
- Isomorphism
- · Replies 1 ·
Calculating the Work Required to Climb Stairs
- Villager27
- · Replies 14 ·
Why Does Charge Density Increase at Pointed Ends?
- Isomorphism
- · Replies 4 ·
When is the average speed equal to the average of the speeds?
- Gjmdp
- · Replies 7 ·
The internal combustion engine
- Ugnius
- · Replies 1 ·
Conservation of Momentum (Generalized Question)
- NY152
- · Replies 1 ·
Force given mass, velocity and fricton
- Leopard_
- · Replies 6 ·
Calculating Maximum Height of an Arrow with Loss of Mechanical Energy
- Lil Uzi Vert
- · Replies 6 ·
How Do You Calculate the Mass of a Planet in Circular Orbit?
- DangoTango
- · Replies 4 ·
Why are activities of all isotopes in a decay-chain equal?
- Clara Chung
- · Replies 6 ·
Calculating velocity of an object after very long time
- Nikhil faraday
- · Replies 1 ·
How Does Refractive Index Variation Affect Mirage Visibility in a Desert?
- Quantum Sphinx
- · Replies 3 ·
Can an astronaut rotate herself?
- physicstudent_B
- · Replies 7 ·
Derive the equation for the shape of an orbit
- Cocoleia
- · Replies 4 ·
Finding the energy dissipated per cycle in a Stirling Engine
- TheBigDig
- · Replies 1 ·
How would I use momentum to calculate projectile range?
- Eclair_de_XII
- · Replies 5 ·
Binding energy / mass deficit of Earth-moon system?
- EternusVia
- · Replies 3 ·
Finding where the gravitational field strength is 0
- HornetHades
- · Replies 4 ·
Finding the work done by a Stirling Cycle
- TheBigDig
- · Replies 3 ·
How to Calculate Energy Change for Lifting an Object on Earth and the Moon?
- Lil Uzi Vert
- · Replies 6 ·
Crystallography, diffraction, identifying the pure element
- adamaero
- · Replies 1 ·
Flowmetry Analysis (relating height to flow rate)
- Minoui11
- · Replies 1 ·
Absorption Of γ - Radiation in Lead/Absorption coefficient
- Hypro96
- · Replies 1 ·
What is the equation for calculating acceleration when lifting an object?
- Ugnius
- · Replies 13 ·
Shear stress at centroid vs other point
- fonseh
- · Replies 2 ·
Calculating center of gravity of a pole
- pixietree
- · Replies 9 ·
Young's double slit-halving amplitude?
- MBBphys
- · Replies 1 ·
Acceleration due to *equal* weights on pulley system
- Shashank Holla
- · Replies 22 ·
Rotational Motion of a thin rod about a pivot
- WWCY
- · Replies 7 ·
Calculating Velocities, dip and depth of a refractor
- loya Blaise
- · Replies 2 ·
Photoelectric effect find velocity?
- Sara077
- · Replies 1 ·
How to find the FWHM-diameter of the SH beam?
- telekom90
- · Replies 1 ·
Archer fish projectile motion: finding initial velocity
- Soccer
- · Replies 6 ·
Boulder falls from cliff -- how high is the cliff?
- Const@ntine
- · Replies 15 ·
Temperature dependent heat-conductivity
- Selveste
- · Replies 3 ·
Finding change in thermal energy Work and Energy problem
- Ly444999
- · Replies 6 ·
Kinetic energy of a rolling hoop
- Jrlinton
- · Replies 1 ·
Uncertainty in Wavelength Calculation from Wave Crests on a Pier
- Ryan Hardt
- · Replies 6 ·
Does Uniform Gravity Equate the Center of Mass with the Center of Gravity?
- member 608465
- · Replies 2 ·
Summing the forces for an object hanging from a spring.
- Hoophy
- · Replies 13 ·
Swimming with current, velocity, angles
- Chemfriend
- · Replies 15 ·
Yo-yo unwinding down an incline without slipping
- ChrisBrandsborg
- · Replies 49 ·
What is the angle θ between the tow rope and the center line
- Angela_vaal
- · Replies 2 ·
Total resistance in a circuit question
- mtig
- · Replies 4 ·
Work done drawing a compound bow from force-distance graph
- Angela_vaal
- · Replies 6 ·
What is the final position of the object?
- Angela_vaal
- · Replies 10 ·