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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The electric field of a piecewise uniform 1D charge distribution
- sudera
- · Replies 13 ·
Help with a problem about motion — bullet striking a block of wood
- TextClick
- · Replies 4 ·
Internal energy of a container filled with water & steam
- etotheipi
- · Replies 12 ·
Does the speed of sound depend on the speed of the medium?
- anonymous99
- · Replies 4 ·
How to find the velocity needed to melt a snowball
- TextClick
- · Replies 4 ·
Rotational dynamics: Rotating rod with two attached balls about a non principal axis
- Nacho_rc11
- · Replies 8 ·
Find the point of separation in SHM
- Vivek98phyboy
- · Replies 15 ·
Electromagnetic Induction exercise, is something wrong with these answers?
- Stephen Bulking
- · Replies 11 ·
Gravity problem: determining the period of a satellite in Earth orbit
- BiggestAfrica
- · Replies 10 ·
Kinematics of deformation (Continuum mechanics)
- Jinjolee
- · Replies 5 ·
Help with two problems relating to universal gravitation
- TextClick
- · Replies 5 ·
How Do You Determine Temperature in Series Carnot Engines by Equating Work Done?
- Prabs3257
- · Replies 5 ·
Circular Motion/Energy: Find the position of the rings when tension = 0
- Edidas
- · Replies 5 ·
Two Speaker Destructive Interference
- Kharrid
- · Replies 1 ·
Closest point to a set with l1 norm
- CCMarie
- · Replies 3 ·
Obtaining work from two bodies by a heat engine
- Parzeevahl
- · Replies 2 ·
What Are Rotational Angular Values in Free Body Diagrams?
- Alexis2020
- · Replies 1 ·
Physics position problem (Block on a flatbed)
- Alexis2020
- · Replies 5 ·
Poynting vector -- Calculate the EM power transmitted down a coax cable
- denniszhao
- · Replies 4 ·
How Is Maximum Spring Compression Calculated in Physics Problems?
- songoku
- · Replies 2 ·
Rotation and spring force exercise
- Hajarmq
- · Replies 16 ·
Inserting thick lenses into a thin lens system and deducing values
- Kaelor
- · Replies 1 ·
Work done BY the gas in a cyclic thermodynamic process
- Aletag
- · Replies 2 ·
Spring stiffness and Heat Capacity (Equipartition of energy)
- godiswatching_
- · Replies 4 ·
Calculating the Second Moment of Area for Floating Bodies
- tomtomtom1
- · Replies 2 ·
Isothermal process involving changes in Volume and Pressure
- dbag123
- · Replies 4 ·
Pressure of an ideal gas -- A Level Multiple Choice Problem
- maxelcat
- · Replies 2 ·
Thermodynamics problem involving engine efficiency
- Stephen Bulking
- · Replies 20 ·
Understanding Waves for Solving Problems
- StillAnotherDave
- · Replies 5 ·
G-force experienced by a jumper, using a DE
- JessicaHelena
- · Replies 15 ·
Calculating total charge when the electric field is given
- Saptarshi Sarkar
- · Replies 7 ·
Damped Simple Harmonic Motion: Finding Amplitude Reduction in Carbon Dioxide
- erisedk
- · Replies 3 ·
Correct statement regarding the graph of binding energy per nucleon
- songoku
- · Replies 11 ·
Inclined Planes, finding time from acceleration at an angle
- ericcy
- · Replies 9 ·
Getting Force with distance, mass and time
- DaRafster
- · Replies 1 ·
Not sure why my method doesn't work: Springs, Potential Energy and Work
- ericcy
- · Replies 5 ·
Conservation of Momentum involving Vf, elastic collisions
- ericcy
- · Replies 6 ·
Inclined Planes, finding final velocity
- ericcy
- · Replies 6 ·
Correct statement regarding nuclear reactions
- songoku
- · Replies 15 ·
Finding the Power Produced by a Hydroelectric Generator
- bieon
- · Replies 2 ·
Force between two perpendicular wires
- Eitan Levy
- · Replies 3 ·
Closest approach of alpha particle - two separate methods
- etotheipi
- · Replies 4 ·
Calculate the moment of inertia of this body
- leynat
- · Replies 4 ·
Force of the Ladder on a Wall Torque
- astoll
- · Replies 5 ·
Buoyancy and the Archimedes Principle
- tomtomtom1
- · Replies 6 ·
Working with Newton's Third Law and friction
- ramseycharles0
- · Replies 2 ·
Determine the mass of the planet using Newton’s Law of Universal Gravitation
- Petronius
- · Replies 2 ·
To find the work done in extending a spring
- gnits
- · Replies 3 ·
Homework Help: Thermal Energy Question
- yamm14
- · Replies 2 ·
A slab? Infinite area? Electric field? Help please
- askcr9
- · Replies 20 ·
Electrostatic potential due to a dipole
- Crystal037
- · Replies 7 ·
How Long Does a Box Stay In Contact With a Spring as it Bounces Off of it?
- Heyxyz
- · Replies 23 ·
Oscillations: The position is modeled as x(t)=Acos(ωt+ϕ)
- jdmaxwell02
- · Replies 4 ·
Newton's third law problem/kinematics (Airboat problem/no friction)
- Petronius
- · Replies 3 ·
Conservation of momentum in a bullet-block-spring system
- AL115
- · Replies 6 ·
Why Potential Energy cannot be included twice?
- CGandC
- · Replies 4 ·
The Total Energy of the Hydrogen Atom's Electron
- needshelp
- · Replies 2 ·
Power and Mass Question -- A helicopter accelerating and ascending
- yamm14
- · Replies 6 ·
The efficiency of a heat engine
- gregorspv
- · Replies 4 ·
Amplitude of oscillation for SHM
- Saptarshi Sarkar
- · Replies 4 ·
Simple Canon Question (Conservation Of Momentum): Frame of Reference
- Kermit_the_Phrog
- · Replies 5 ·
Solving the Platform and Object Kinetic Energy Equation
- eyespy
- · Replies 8 ·
Finding the magnetic field at a point P
- bfusco
- · Replies 9 ·
Please can I get some help finding the function of motion
- Alexan
- · Replies 31 ·
Energy problem with 2 objects (a mass flying vertically off of a ramp)
- PedroPicapiedra
- · Replies 7 ·
How do I calculate the time and distance for a pendulum projectile problem?
- velocityoverrtime2
- · Replies 1 ·
Wire rotating inside a magnetic field
- Moara
- · Replies 8 ·
E field calculation for q sphere
- fisher garry
- · Replies 4 ·
Finding the Solution: Solving for x in a Polarization of Light Equation
- johnsobertstamos
- · Replies 17 ·
Finding the magnitude of the hydrostatic force per unit of circumference
- tomtomtom1
- · Replies 5 ·
Is a Rate of 100K/s an Intuitively Offensive Way to Measure Temperature Change?
- Bolter
- · Replies 9 ·
Solving for the Damping Constant
- lightlightsup
- · Replies 11 ·
Time period of oscillation of charge in front of infinite charged plane
- Saptarshi Sarkar
- · Replies 3 ·
Electron moving inside a region of homogeneous electric field
- Moara
- · Replies 3 ·
Spring pendulum with and without weight
- Stuka_Hunter
- · Replies 1 ·
Conservation of Momentum: Elastic Collision of Two Masses
- sciencec
- · Replies 1 ·
Horizontal Circular Motion With Lagrange
- Fascheue
- · Replies 5 ·
Calculate the amount of water vapor
- dbag123
- · Replies 3 ·
Working out the rate of heat loss from a radiator
- Bolter
- · Replies 14 ·
Finding latent heat of vaporisation
- Bolter
- · Replies 3 ·
Velocity of an object on an inclined plane
- Prabs3257
- · Replies 7 ·
Particle in a well, can someone explain how this step works
- Theodore0101
- · Replies 1 ·
Finite quantum well, multiple choice question
- Theodore0101
- · Replies 3 ·
Calculating Escape Velocity for Earth: Where Am I Going Wrong?
- breid040
- · Replies 2 ·
Find the refractive index for the lens and find the image distance
- Karl Karlsson
- · Replies 3 ·
Linear and angular momentum problem: Ball hitting a rod
- barryj
- · Replies 62 ·
What Is the Best Way to Determine Electricity Prices on an Isolated Island?
- Kolika28
- · Replies 9 ·
What is the frictional force on a wheel-disk system?
- jake010
- · Replies 5 ·
Tension and frequency of a vibrating violin string
- Dong Min
- · Replies 26 ·
Is My Quantum Well Probability Calculation Correct?
- Theodore0101
- · Replies 9 ·
Oscillations of a Balanced Object
- breid040
- · Replies 1 ·
A kid slips off the top of the hill -- find the escape angle
- Michael_0039
- · Replies 1 ·
Can phase shift keying delay a wave further?
- Crystal037
- · Replies 5 ·
Calculating the uncertainty in a Geiger counter
- DanishForestCat
- · Replies 16 ·
What is the minimum velocity needed?
- nineteen
- · Replies 20 ·
Astrophysics/Astronomy Extended Essay -- Trying to figure out a research topic
- SoulOfSword_
- · Replies 6 ·
What is the Formula for Calculating Enthalpic Capacity in Steam Heat Transfer?
- sci0x
- · Replies 14 ·
Troubleshooting Wave Velocity on a Piano Wire
- ac7597
- · Replies 1 ·
Dropping a package with a parachute from a moving plane
- lawliet
- · Replies 13 ·
Further Applications of Newton's Law : Friction, Drag, and Elasticity
- EnricoHendro
- · Replies 3 ·