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 Do Pulley Systems Affect Block Speeds with Friction and Spring Forces?
- obnoxiousris
- · Replies 13 ·
How Do Cosmic Rays Travel Through Earth's Atmosphere?
- najisalem2009
- · Replies 1 ·
10 moles of an ideal gas has a gauge pressure of 2 atm what is new T? no clue
- teggenspiller
- · Replies 14 ·
Diamond Ring in Front of a Convex Lens?
- itsgood819
- · Replies 4 ·
Finding the instantaneous axis of rotation
- Femme_physics
- · Replies 7 ·
Fundamental Frequency, Shortening the length of the spring
- x3lifelove
- · Replies 1 ·
Find the equivalent resistance in a circuit
- jakobsandberg
- · Replies 3 ·
How much energy is released in the fusion of 4 protons?
- najisalem2009
- · Replies 7 ·
Find acceleleration of object with angle only.
- dupdup
- · Replies 7 ·
Cable car and counterweight forces problem. (Tension)
- Sentience
- · Replies 5 ·
CONCEPTUAL: isothermic expansion
- lackos
- · Replies 1 ·
How Does Angling the Force Affect Kinetic Energy Increase in a Sled?
- mchu422
- · Replies 1 ·
Elastic collision between particles p and N with 90° deflection
- ArticMage
- · Replies 9 ·
Oscillations of Covalent Molecules
- BlueDevil14
- · Replies 6 ·
Finding dimensions of a rectangle with area 90 cm²
- punk_rawk_jazz
- · Replies 7 ·
Time to reach terminal velocity
- JC1
- · Replies 2 ·
At what angle will a 10 kg mass slip on a plank with coefficient of friction 0.2?
- pol1313
- · Replies 15 ·
Conservation of momentum velocity problem
- kozis
- · Replies 2 ·
Does wavelength change with the Doppler effect?
- BF3MW3
- · Replies 3 ·
I couldn't find the total distance
- smashX
- · Replies 8 ·
Finding mass of nitrogen gas from pressure, volume and temperature
- teggenspiller
- · Replies 13 ·
How does the configuration of two coils affect voltage readings in a circuit?
- oronanschel
- · Replies 1 ·
Constraint equation for two blocks connected by a cord
- mashac
- · Replies 2 ·
Why is angular velocity Vb/0.6 in rotating bar problem?
- dvep
- · Replies 1 ·
Finding Potential Difference between two points homework
- harshakantha
- · Replies 31 ·
Forces and Equilibrium : Find the force b/w the blocks?
- devvaibhav
- · Replies 2 ·
How do you calculate the work done against gravity?
- Ahmadabdallah
- · Replies 5 ·
Car overtaking accelerating truck problem
- mashac
- · Replies 4 ·
When Should 'g' Be Negative in Physics Equations?
- jteh
- · Replies 3 ·
Optics question - Image formation
- Oshada
- · Replies 11 ·
Geometrical solution to static problem without friction
- maros522
- · Replies 2 ·
How do I calculate the trajectory of a thrown ball onto a roof?
- wolves5
- · Replies 4 ·
How Does Projectile Motion Work When a Ball is Thrown from a Cliff?
- wolves5
- · Replies 13 ·
Swimmer and Two Dimensional Equations
- wolves5
- · Replies 6 ·
How Do You Write a Superposition Wavefunction for an Electron in a 1D Box?
- coconutfreak
- · Replies 3 ·
Electricity and magnetism point charges problem
- ravsau
- · Replies 1 ·
AZING!The Second Law of Thermodynamics and Entropy Changes in a Heat Engine
- Peter G.
- · Replies 1 ·
How Does Engine Efficiency Affect Cooling System Temperature?
- efren17
- · Replies 1 ·
Solving time for a satellite to circle the earth using velocity equation
- garcia1
- · Replies 1 ·
What was the x component of the initial velocity of the ball?
- wolves5
- · Replies 3 ·
How Do You Calculate the Upward Force on a Uniform Rope Being Lifted?
- ajmCane22
- · Replies 3 ·
Electron-proton relative speed at 0.9c each direction
- najisalem2009
- · Replies 6 ·
Question on uniform circular motion
- jactre
- · Replies 1 ·
97.9747 = sinh (6.2737x10^9) How did they solve this?
- j2dabizo
- · Replies 3 ·
Question regarding elastic potential energy and work
- gkangelexa
- · Replies 4 ·
Equations relating to a loudspeaker?
- doomsdaydave1
- · Replies 2 ·
How Can a Marble Roller Coaster Achieve Multiple Loops Within Strict Dimensions?
- Quantum_Prodegy
- · Replies 1 ·
Force in Head-on Collisions: Equal Risk or More?
- Tweeter
- · Replies 4 ·
Beads colliding on vertical circular hoop with coefficient of restitution 0.5
- steejk
- · Replies 6 ·
Radius of curvature of a bimetallic strip
- drakierd
- · Replies 4 ·
Can't Figure out what I am doing wrong F=MA (easy problem)
- lanzjohn
- · Replies 5 ·
What is the direction of impulse delivered to the ball?
- ajmCane22
- · Replies 9 ·
What is the Maximum Transverse Speed and Displacement in a String Wave Equation?
- ee1215
- · Replies 5 ·
How Do You Calculate the Third Force in a Three-Force System?
- Callen9
- · Replies 2 ·
Magnetic Fields proton beam accelerated
- Smugdruggler
- · Replies 2 ·
What Frequency Does a Worker Hear at Rest?
- ee1215
- · Replies 6 ·
Recoil velocity of rifle firing a paintball
- DeathCrawls
- · Replies 19 ·
How far away is the rock face? (Wavelengths)
- WhyHello
- · Replies 1 ·
Work/ energy on a rigid body (mechanics)
- smruthi92
- · Replies 6 ·
How Did Ampere and Kirchhoff Shape Modern Electromagnetism?
- Jsizzle
- · Replies 1 ·
Calculate the electric field strength inside and outside a wire
- matt_crouch
- · Replies 6 ·
How Does the Archerfish Use Projectile Motion to Hunt?
- wolves5
- · Replies 1 ·
Projectile Motion Calculations at t = 10 s
- wolves5
- · Replies 2 ·
Calculating Wavelength and Expressions for Standing Waves | Homework Solution
- ee1215
- · Replies 1 ·
Grade 12 Physics Lab (Material = Box of Matches)
- gurtaj
- · Replies 1 ·
Calculating Average Binding Energy per Nucleon in Deuterium
- dois
- · Replies 2 ·
What Is the Velocity of Cyclist B and C Relative to the Road?
- Peter G.
- · Replies 2 ·
Shear Modulus of jiggling jello
- Bob Loblaw
- · Replies 6 ·
Stefan-Boltzmann law question (astronomy)
- lk31
- · Replies 4 ·
How Do You Calculate the Electrical Charge of a Particle?
- mintalcase
- · Replies 3 ·
Calculating the Mass of an Electron
- dois
- · Replies 1 ·
Effects of Doubling Frequency on Sound Properties
- DeathCrawls
- · Replies 6 ·
Guitar String's 2nd Overtone Frequency
- teggenspiller
- · Replies 3 ·
John Travoltage (Electo and magnatesim concept questions)
- slangfo1
- · Replies 3 ·
Project: Launching from liquid
- holidy174
- · Replies 1 ·
How Do You Calculate Wavelength in a Standing Wave Scenario?
- AnomalyCoder
- · Replies 3 ·
Approximation of Volume using Differential
- Frank69
- · Replies 7 ·
Work Done by Gas in Carnot Cycle
- Peter G.
- · Replies 5 ·
Young's Double-slit Equation Question
- ova5676
- · Replies 2 ·
How do I find pulley tension without knowing acceleration?
- smruthi92
- · Replies 10 ·
Free fall and pressure when landing in snow
- Order
- · Replies 2 ·
Properties of electric charges - insulators and conductors
- joej24
- · Replies 1 ·
Cylinder rolling up inclined plane - Rolling without slipping
- Oshada
- · Replies 15 ·
Proving Negative G-Forces with an Example
- BlueBiro
- · Replies 2 ·
Bernoulli's Principle and water tank
- mad_monkey_j
- · Replies 4 ·
Solving an Electric Circuit with Kirchhoff's Voltage Law
- pokgai
- · Replies 1 ·
MCAT contradiction? - Gauge Pressure
- berkeley12
- · Replies 4 ·
What is the surface area of the filament? heat expansion and transfer
- teggenspiller
- · Replies 12 ·
Finding the point where the net electric field is 0
- 012983
- · Replies 3 ·
Period of a simple harmonic oscillator
- spraymonkey32
- · Replies 1 ·
Circular/rotational motion problem - Waterwheel with bucket
- Oshada
- · Replies 13 ·
Dot product and cross product of vectors in Cartesian form
- 1barcafan
- · Replies 2 ·
Rotational kinematics of a ball
- medicle
- · Replies 1 ·
System of forces and torque on an object
- Rushers
- · Replies 6 ·
What is the mass of water used to cool the iron car engine?
- studenta
- · Replies 3 ·
Path Difference: Why a Cold Spot Forms at S
- Luke1121
- · Replies 1 ·
Question on Thermodynamics Problem
- D_Tr
- · Replies 2 ·
Color of oil slick with 250 nm thickness and refractive index 1.4
- MednataMiza
- · Replies 4 ·
Why Does P * V Not Always Equal 1 in Gas Laws?
- ProPM
- · Replies 8 ·