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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Conservation of Angular Momentum of a bird
- RJLiberator
- · Replies 11 ·
Distance between center of gravity and center of mass for uniform 2m rod
- Ellen Liu
- · Replies 4 ·
Find induced charge on conducting cube in uniform field
- Samuelriesterer
- · Replies 9 ·
Finding the force to break static friction
- nevererdofit
- · Replies 10 ·
Determining New Angular Velocity
- crushedcorn
- · Replies 4 ·
Moment of inertia for a hoop vs. solid cylinder spinning
- goonking
- · Replies 8 ·
What is the temperature increase of the gas?
- Tori Grafe
- · Replies 1 ·
Finding work with displacement and weight.
- Bluepie97
- · Replies 5 ·
Finding Potential Difference between two points
- Knah
- · Replies 1 ·
Using ampere's law for a circular loop
- Essence
- · Replies 6 ·
Bosuns Chair acceleration problem
- CallumC
- · Replies 6 ·
Finding constraint equations for three-mass pulley system
- Jazzman
- · Replies 21 ·
Using the derivative of the formula of the number of nuclei
- Albo1125
- · Replies 6 ·
Calculating inductance of an LR and RLC Circuit?
- WK95
- · Replies 8 ·
Finding Time with Acceleration Inital Velocity, Displacement
- NeedHelp18
- · Replies 2 ·
Why a cotton wool will not ignite using thermodynamics?
- Tangeton
- · Replies 15 ·
At what distance x do the waves have a phase difference of ___?
- FearlessRose
- · Replies 8 ·
What is the frequency of the wave?
- FearlessRose
- · Replies 2 ·
What is the magnetic force on the particle
- sugz
- · Replies 4 ·
Understanding Electromagnetic Waves in a Vacuum
- TheRedDevil18
- · Replies 4 ·
Electric Field Angle at Origin: 209 deg
- sugz
- · Replies 2 ·
How Do You Calculate Primary Current in a Step-Up Transformer?
- RRTF
- · Replies 2 ·
Speed of a beryllium nuceleus after acceleration
- MadsPH
- · Replies 1 ·
Calculate Torque for 8N Forces on 0.6m Beam
- Charles W
- · Replies 4 ·
Conservation of Momentum of two trolleys
- Charles W
- · Replies 5 ·
Creating a Cloud Chamber for Deflecting Charged Particles
- Garlic
- · Replies 17 ·
Estimate flattening of the Earth
- Yoonique
- · Replies 20 ·
Determain thickness of layers in cylindrical capacitor
- Vernes
- · Replies 1 ·
Conservation of Momentum and Collisions
- Charles W
- · Replies 7 ·
Formula for the Speed of Ocean Waves
- Charles W
- · Replies 3 ·
How Much Liquid Nitrogen is Needed to Freeze Water at 0ºC?
- Ethan_Tab
- · Replies 13 ·
Temperature-Independent Resistor Combo
- Angie K.
- · Replies 4 ·
Moment of Inertia of an L-shaped bar
- Kotten
- · Replies 5 ·
Finding max acceleration with force at angle incl friction
- YearnToLearn
- · Replies 4 ·
Inclined plane with block and cylinder, pulley with mas
- JesseJC
- · Replies 4 ·
Work required to take object from planet to infinity
- JesseJC
- · Replies 5 ·
Finding ball speed from centripetal acceleration and radius
- masterchiefo
- · Replies 11 ·
How Do You Solve a Suvat Problem for a Ball Thrown Off a Roof?
- madmike159
- · Replies 2 ·
Time to drain water through a pipe
- Bruneleski
- · Replies 6 ·
Find both the internal resistance of a battery and EMF
- Shinwasha
- · Replies 8 ·
Astronaut travels to distant planet, finding age?
- theafonis
- · Replies 3 ·
Measuring a Coil of Wire With Ohmmeter and Balance
- Angie K.
- · Replies 3 ·
How Long Does It Take for a Bowling Ball to Stop Sliding and Start Rolling?
- kingsmaug
- · Replies 14 ·
Ice added to water at 273K, calculate new ice mass
- mertzi
- · Replies 7 ·
Front flip of a bike. Conserving Angular Momentum.
- Satvik Pandey
- · Replies 3 ·
Refraction of light ray in swimming pool with Snell's law
- mirracle4
- · Replies 4 ·
Destructive interference Sound question
- zee abadin
- · Replies 3 ·
Magnetic flux. Dont know where to start
- Anakrystine
- · Replies 1 ·
Why is average velocity called velocity?
- NooDota
- · Replies 3 ·
Non-constant Current Density of Magnetic Field
- Aristotle
- · Replies 13 ·
How Is Current Calculated in a Wheatstone Bridge Setup?
- B3NR4Y
- · Replies 25 ·
Simple Conceptual Question Regarding Pascal's Principle
- zak.hja
- · Replies 1 ·
Two charges located along x. Find all values?
- nawand
- · Replies 2 ·
Solve Tension and Moments Problem: Q4 iii) B)
- ryanuser
- · Replies 1 ·
Final velocity in SUVAT equations -- ball thrown from a wall
- gracy
- · Replies 11 ·
Resistance and DC circuit question
- SmokeyMTNJim
- · Replies 7 ·
Problem 13.33 - Floating gasoline
- Calpalned
- · Replies 1 ·
How Much Energy is Dissipated in a Resistor in 0.75 Seconds?
- B3NR4Y
- · Replies 3 ·
How do I plot the load line for a nonlinear network with an ideal diode?
- Dextrine
- · Replies 1 ·
A glass marble is dropped down an elevator shaft
- Salk13
- · Replies 28 ·
Torque Calculation for Suspended Mass and Cylinder System
- Richard Dumfry
- · Replies 10 ·
Work required to bring charge from infinity
- henry3369
- · Replies 3 ·
Why Does Increasing a Satellite's Altitude Affect Its Total Energy?
- nishanth R
- · Replies 1 ·
Moon's orbital distance ratio when gravitational force varies by 11%
- SpacemanRich
- · Replies 6 ·
Why Use Angular Acceleration Instead of Radial?
- DaveTan
- · Replies 3 ·
Satellite orbiting around Earth over equator
- Yoonique
- · Replies 11 ·
Weight of man on small wedge sliding on larger wedge
- Vector123
- · Replies 13 ·
Torque equilibrium with 0.2 kg weight at 0.501 m
- Scoli
- · Replies 1 ·
Projectile fired vertically from Earth at 3.1 km/s, how high does it go?
- SnakeDoc
- · Replies 3 ·
How to find acceleration from distance and time?
- SagarPatil
- · Replies 4 ·
Rotational Inertia of a Pulley System
- Derpity Derp
- · Replies 1 ·
Relative velocity of accelerating and non accelerating particles
- Hijaz Aslam
- · Replies 22 ·
What is the initial acceleration of mass 5M in an ideal pulley system?
- Himanshu_123
- · Replies 5 ·
Calculating View Factors for Three Surfaces Using Reciprocity Relation
- princejan7
- · Replies 1 ·
Conical pendulum with two charges
- Gabriel Maia
- · Replies 3 ·
Finding Torque for Angular Momentum Parking Gate
- Goofball Randy
- · Replies 10 ·
Parachute Problem, Figuring out largest load it can hold
- mathguy2
- · Replies 5 ·
Is the force to lift a box greater than the force to pull it?
- lola2000
- · Replies 4 ·
First order RC: Find Unknown DC Circuit, given current graph
- iharuyuki
- · Replies 1 ·
Superposition: Find V(t) in complex (AC) circuit
- iharuyuki
- · Replies 4 ·
Change in momentum and force for 40kg gymnast on trampoline
- smagro
- · Replies 10 ·
Maximum power of circuit with dependent voltage source
- iharuyuki
- · Replies 1 ·
Which Liquid Exerts the Greatest Pressure at the Base of a Cylinder?
- Herwin
- · Replies 4 ·
Q = cm t (raising water temperature -- answer given looks wrong)
- Stacie Worrel
- · Replies 1 ·
When Does a Projectile's Horizontal Velocity Double Its Vertical Velocity?
- gracy
- · Replies 7 ·
Irreversible adiabatic expansion in which P_ext=0
- Raghav Gupta
- · Replies 13 ·
Double shear pin for the snow blower
- bal
- · Replies 3 ·
Maximum extension in spring connecting two masses.
- Satvik Pandey
- · Replies 19 ·
Find current using KVL (with dependent source)
- iharuyuki
- · Replies 2 ·
How can I determine the properties of a thin lens using basic formulas?
- AaronBurr
- · Replies 3 ·
Two particles colliding: v1=3t-5, v2=-t+30, 100m apart
- simile
- · Replies 7 ·
Modeling mass-spring-dashpot system
- Kavorka
- · Replies 3 ·
Sign on change in electric potential energy
- henry3369
- · Replies 8 ·
Force from 300 lb mass dropped 10 feet vs resting mass
- BTT
- · Replies 7 ·
Amplitude of two carts attached by a spring
- frogs
- · Replies 1 ·
Conservation of Momentum in Explosions
- anton717
- · Replies 1 ·
Electric field within a conductor with a cavity
- henry3369
- · Replies 4 ·
Pendulum motion inside a freely falling lift
- philk
- · Replies 7 ·
Magnetic Field due to long wire?
- Destroxia
- · Replies 5 ·
How Was the Equation v=fλ Derived in Wave Physics?
- Musa Ali
- · Replies 1 ·