Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Finding emf and internal resistance from V-I graph
- Gregg
- · Replies 3 ·
Some Hydrostatics ConceptsWhen to use Buoyancy/When to use
- Saladsamurai
- · Replies 9 ·
Energy conservation and projectile motion
- Dark_Rak3r
- · Replies 12 ·
Proton in electric and magnetic fields
- science.girl
- · Replies 2 ·
Applying the parabolic trajectory equation correctly
- GregD603
- · Replies 3 ·
Work and velocity for ball thrown upward with air resistance
- bphysics
- · Replies 2 ·
What is the Number of Coulombs of Positive Charge in Water?
- GenMipps
- · Replies 5 ·
Cathode Ray Tube Magnetic Question
- science.girl
- · Replies 2 ·
Piston oscillating in insulated tube with gas on both sides
- C.E
- · Replies 33 ·
Waveform Revision: Past Exam Papers for Test Prep on Thursday
- TommyM
- · Replies 3 ·
Forces on blocks with 3 different masses.
- xgoddess210
- · Replies 5 ·
R is the constant in the ideal gas law.
- the whizz
- · Replies 3 ·
How Does Light Intensity Vary with One Slit in a Diffraction Experiment?
- Vaseline
- · Replies 1 ·
Calculation of magnetic field from electric field
- maggas
- · Replies 1 ·
Rotational Inertia of merry go round
- bphysics
- · Replies 1 ·
Finding Slit Separation Using the Double-Slit Apparatus
- patelpalak
- · Replies 5 ·
Entropy Change in a Carnot Engine
- lms_89
- · Replies 8 ·
Significant Digits in Measurements and Computations
- HussanAli
- · Replies 2 ·
Right Hand Rule: Proton or Electron?
- Air
- · Replies 3 ·
Power Loss In Transmission Lines (Again?)
- Jiachao
- · Replies 7 ·
Does Higher Resistance Mean Brighter Bulbs?
- tokoG
- · Replies 13 ·
Force on a circular loop near an infinite current-carrying wire
- desmal
- · Replies 3 ·
Calculating Heat Needed to Heat 5 kg. Water from 20C to Steam at 100C
- Spaniard
- · Replies 11 ·
Calculating Electron Trajectory in an Electric Field
- rhettfraser
- · Replies 6 ·
Why Is My Calculation of Net Torque Incorrect?
- jghlee
- · Replies 2 ·
Effects of Placing a Compass Under a Cable
- UNknown 2010
- · Replies 4 ·
Force needed to accelerate a 2.0kg ball at 3.0m/s²
- 123tricks
- · Replies 3 ·
Power Dissipation in Circuit Calculation
- brentwoodbc
- · Replies 7 ·
Length Contraction/Time Dilation
- prime-factor
- · Replies 10 ·
Can the normal force between a blocks accelerating together be zero?
- mistymoon_38
- · Replies 3 ·
Acceleration of a Textbook on a Flat Surface
- frostking
- · Replies 2 ·
Smallest distance between object and image - lens.
- Kruum
- · Replies 4 ·
Calculating Ball Impact Speed: Solving the Physics Problem
- Jjolly65
- · Replies 3 ·
Magnetic field of a finite-length wire
- Chen
- · Replies 6 ·
Beam and Hinge Equilibrium Analysis
- sinequanon
- · Replies 3 ·
How Much Work Is Needed to Position a Charge in an Equilateral Triangle?
- indie452
- · Replies 4 ·
2 masses attached with a spring falling
- Dweirdo
- · Replies 8 ·
Final Project Presentation Topic?
- RobSoko315
- · Replies 1 ·
Electric field in conducting shell with central charge using Gauss's law
- physics213
- · Replies 4 ·
Calculating Jim Goff's Hourly Wage
- abhikesbhat
- · Replies 3 ·
How Fast Does a Ball Move When Pushed by Compressed Air?
- brunettegurl
- · Replies 8 ·
Finding the coefficients of friction
- wilson_chem90
- · Replies 15 ·
Angular Velocity of the Hubble Space Telescope
- joemama69
- · Replies 24 ·
Difference between magnetic flux and magnetic flux density
- UNknown 2010
- · Replies 4 ·
How Is Charge Distributed in a Conductor with an Internal Cavity?
- Air
- · Replies 5 ·
Single slit Diffraction using green light
- IvaNMK
- · Replies 1 ·
Gravitational pull, superposition
- lemonpie
- · Replies 7 ·
What is the Terminal Velocity and Drag at High Altitudes?
- bigboss
- · Replies 4 ·
How Do You Calculate Uncertainty for a Perfect Straight Line?
- leo037
- · Replies 4 ·
Kinetic Friction + Acceleration
- cd19
- · Replies 11 ·
How to Find h in Hydrostatics?
- Saladsamurai
- · Replies 3 ·
A monatomic gas is adiabatically compressed
- vorcil
- · Replies 9 ·
Faraday's Law problem involving selenoid.
- Kizaru
- · Replies 2 ·
Electricity and Magnetism Question (Related to circuits). .
- Partap03
- · Replies 5 ·
Finding equation of the position
- Lord Dark
- · Replies 7 ·
2 Problems i need hlep with, Acceleation and Time
- Maury_702
- · Replies 3 ·
Determining scale readings given different densities
- heyrefusuck
- · Replies 1 ·
Calculating Velocity for a Soap-Box Car with Rolling Wheels
- joemama69
- · Replies 12 ·
Calculate electric field at origin, with 3 charges
- adca14
- · Replies 4 ·
Missile launch speed and flight time at 20 degrees
- red_viper_88
- · Replies 33 ·
Dragging loop out of magnetic field (Finding Force)
- GDGirl
- · Replies 5 ·
What Forces Determine the Stability of a Ladder in Static Equilibrium?
- lemonpie
- · Replies 4 ·
Force on a Charged Object in a Field
- Boozehound
- · Replies 11 ·
How do I find bending moment and shear forces at the centre of a beam?
- cd19
- · Replies 12 ·
Effective focal length of eye lens with book at 40 cm
- radiofruit
- · Replies 5 ·
Two boxes connected with a pulley, one hanging
- frozenguy
- · Replies 19 ·
I don't really understand Coulombs Law
- bran91bran
- · Replies 1 ·
Contracting Loop in a Magnetic Field (emf and current)
- GDGirl
- · Replies 2 ·
Find the tension in a rope with a 60kg man hanging on one side
- bigboss
- · Replies 4 ·
Spring-mass system: period, speed, and energy in SHM
- no1schuifan
- · Replies 5 ·
Direction of the electric field
- soopo
- · Replies 2 ·
Solved: Density of Induced Charge is 7.083*10-7 C/m2
- Dell
- · Replies 1 ·
Volume of water above a quarter-cylinder submerged in a tank
- Saladsamurai
- · Replies 3 ·
Forces (moment of inertia) Question
- Lord Dark
- · Replies 6 ·
Understanding Moment of Inertia in a Rotational System
- Lord Dark
- · Replies 5 ·
Ball thrown from building at 53° finds height and wall distance
- Lord Dark
- · Replies 11 ·
Solve Hot-Wheels Car Mass, Velocity for Height
- smithers11
- · Replies 2 ·
How Does the Millikan Oil Drop Experiment Illustrate the Balance of Forces?
- General_Sax
- · Replies 1 ·
Moment of inertia of sphere and rod rotating about z-axis
- Lord Dark
- · Replies 9 ·
Finding the speed of a metal ball
- smithers11
- · Replies 3 ·
Finding particle speed ratio with E=mc² and E=Bev
- soopo
- · Replies 2 ·
Isobarric, Isochoric, Adiabatic cycles
- Trenthan
- · Replies 7 ·
How do i find the difference in voltage from point A to B
- Dell
- · Replies 3 ·
Calculating the half-life of sodium pertechnetate from activity measurements
- shenzys
- · Replies 1 ·
Ball swinging down hits block: find impulse, average force, max force
- Lord Dark
- · Replies 1 ·
Some questions(pulleys,rotation)
- Dweirdo
- · Replies 3 ·
Work done in Adiabatic, Quasistatic-compression
- Trenthan
- · Replies 4 ·
Converting Units in the Lorentz Force Law
- dulask
- · Replies 2 ·
Find Net Capictance: Capacitor C
- Garvit
- · Replies 4 ·
Can Diffraction Occur with Any Size Opening Relative to Wavelength?
- Nerd
- · Replies 13 ·
Problem on thermodynamics first law again
- ky92
- · Replies 5 ·
What is the Angle Between Forces in Equilibrium?
- kushalksoni
- · Replies 2 ·
What is the volume of an air bubble in water at a depth of 50m?
- soopo
- · Replies 7 ·
Capacitance and distance between plates
- soopo
- · Replies 4 ·
Wave speed on a string and harmonics of piano notes
- kim3k84
- · Replies 1 ·
Maximum force from floor on bouncing ball from 2.60 m
- brunettegurl
- · Replies 12 ·
Finding the CM of a Bar of Variable Density
- Lopina
- · Replies 3 ·
Scientific Principles for School Project
- dhruv_arora
- · Replies 1 ·
Acceleration of the lower block
- brunettegurl
- · Replies 15 ·