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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Electric field when there are 3 charges
- awertag
- · Replies 5 ·
Calculate velocity when time is equal
- PhysicsAdvice
- · Replies 4 ·
How long it takes for the ice block to hit the ground
- chawki
- · Replies 11 ·
How can you determine instantaneous velocity from a position-time graph?
- chiwen1
- · Replies 2 ·
Carnot Heat Pumps: Solving |Q_c|/|Q_h|=T_c/T_h Equation
- frankwilson
- · Replies 2 ·
Electric Field Strength Inside a Cylindrical Non-conductor
- clementc
- · Replies 4 ·
Calculating Charge of Two Spheres in Equilibrium
- Pseudopro
- · Replies 3 ·
Does zero circulation of B around a curve imply B=0 on the curve?
- saubhik
- · Replies 2 ·
Electromagnetism/Magnetism concept questions.
- Unillusive
- · Replies 7 ·
How Long Does It Take a Supersonic Plane to Complete a 45-Degree Turn?
- laxbear99
- · Replies 1 ·
What is the maximum induced emf in a rotating coil generator?
- sona1177
- · Replies 4 ·
Force between blocks and crate acceleration problems
- Miagi
- · Replies 3 ·
Football thrown, when does it reach max.height?
- aeromat
- · Replies 3 ·
Circular motion of plane flying at 40.1 degrees [CAPA Question]
- ghostanime2001
- · Replies 3 ·
Circular Motion Energy/Binary Star problem
- abe_thebabe
- · Replies 1 ·
Calculating the Velocity of a Fireman Sliding Down a Pole
- CheeseJam
- · Replies 1 ·
Solving Spring CD Horizontal Position Equilibrium Problem
- musicmar
- · Replies 9 ·
Two Trucks, same mass, one pulling other
- aeromat
- · Replies 1 ·
Lifting a 7.5 kg Box: Power Calculations
- jensson
- · Replies 1 ·
What Are the Kinematics of Cliff Divers in Acapulco, Mexico?
- Peter G.
- · Replies 2 ·
Intro to Thermal Energy/Heat Transfer: Grade 11 Practice Problems
- -Dragoon-
- · Replies 5 ·
Energy problem-worker on roof of a building dropped a wrench over the edge
- flyingbadger
- · Replies 1 ·
Find Arc Length of x = 1/3√y(y-3) 1 ≤ y ≤ 9
- vande060
- · Replies 2 ·
Gravitational Potential Energy of a skateboard
- galtspeaking
- · Replies 3 ·
Torque in cylinders - show the cylinder undergoes harmonic motion
- Maybe_Memorie
- · Replies 1 ·
Charge and voltage of capacitors?
- gmmstr827
- · Replies 3 ·
How Is Electric Potential Calculated for a Charged Rod?
- Screwdriver
- · Replies 2 ·
Capacitor behaviour (force, electric field, charge and plate distance)
- bedarder
- · Replies 4 ·
Charged Beads released, find maximum speed.
- Potato21
- · Replies 4 ·
2 objects from the same altitude?
- egerol1
- · Replies 4 ·
Calculating the currents in each resistor
- n387g
- · Replies 7 ·
Magnetic field of an infinite sheet of current
- JHans
- · Replies 3 ·
Electrostatics - finding velocity of an electron
- milkyway11
- · Replies 5 ·
Weight of ball/water/cylinder system as the ball falls
- jordanstreet
- · Replies 2 ·
Magnetic force for a current-carrying wire
- CaneAA
- · Replies 5 ·
Calculating Escape Velocity for a Small Asteroid with Given Initial Velocity
- Berkshire
- · Replies 1 ·
Finding points where electric potential is 0
- natalie.*
- · Replies 7 ·
Backwards Derviative? Am i seeing this right?
- 1joey1
- · Replies 3 ·
Dielectric Filled Parallel Plate Capacitor Question
- SabreV45
- · Replies 4 ·
What is the Function of a Diode in Protecting an NPN Transistor?
- dancergirlie
- · Replies 10 ·
Angular velocity and acceleration for catapult arm
- yohak
- · Replies 4 ·
What is the time period of a pendulum on an inclined plane?
- Abhishekdas
- · Replies 2 ·
Young's Double Slit Experiment - Slit Separation Calculation
- MrBob22
- · Replies 2 ·
What is the maximum height a weighted spring can reach?
- arjwilliams
- · Replies 1 ·
Bohr model find orbital radius for electron
- awertag
- · Replies 2 ·
Induced EMF from a wire frame pulled by a spring in a magnetic field
- XuryaX
- · Replies 4 ·
Electron orbiting proton-orbital radius?
- awertag
- · Replies 5 ·
Change in length of an electromagnetic wave
- Avathacis
- · Replies 1 ·
Resolving forces, should be simple
- furor celtica
- · Replies 8 ·
A problem with a projectile motion question
- keroberous
- · Replies 4 ·
Is the Orbit of a Satellite Affected by Changes in Speed?
- Abhishekdas
- · Replies 6 ·
Finding Velocity of a Rotating Light Source Along a Wall
- Abhishekdas
- · Replies 9 ·
Derive spherical mirror formula using Fermat's principle
- Bhumble
- · Replies 1 ·
Work and Energy in Nonconservative Systems: Solving Problems with Pictures
- yesshh
- · Replies 1 ·
Thermodynamics: Object 1 in contact with Object 2
- p1mpz0r
- · Replies 2 ·
Elastic collision on air track, finding center of mass speed
- sstangle73
- · Replies 3 ·
Calculating the Speed of a Plane for a Stationary Sun at 26.3° Latitude
- Tina20
- · Replies 3 ·
Nonconducting concentric cylinders
- J2012
- · Replies 4 ·
Current Density and Electron Drift Speed
- amb0027
- · Replies 7 ·
Wave Packet and Standard Deviations
- erok81
- · Replies 7 ·
Kinetic Energy lost during elastic collision
- vetteLT4
- · Replies 1 ·
Can an Electromagnetic Wave Charge a Battery?
- nickerst
- · Replies 1 ·
Electric Field of a Continuous Charge Distribution
- Tsunoyukami
- · Replies 13 ·
Finding Electric Field from Electric Potential
- uchicago2012
- · Replies 1 ·
Dropping a ball onto a wedge, 2d elastic collisions.
- gutupio
- · Replies 7 ·
Electrostatics - Work done by an electron
- milkyway11
- · Replies 1 ·
Find the total work done on an object on a ramp if the force is at an angle?
- misplaced1
- · Replies 2 ·
Driver sees stop sign up ahead
- unholymist
- · Replies 4 ·
Equilibrium of Three Forces: Solving with Vectors?
- barthayn
- · Replies 2 ·
How Do You Analyze Forces in a Pulley System Equilibrium Problem?
- joej24
- · Replies 4 ·
Finding Final Equilibrium and the like
- nycginger
- · Replies 7 ·
Find terminal voltage, currents of multiple batteries.
- Blu3eyes
- · Replies 9 ·
Finding tension in one cable of a hanging chandelier
- BlakeGriffin
- · Replies 2 ·
Two forces on a car and contact force between blocks
- n3wbie
- · Replies 5 ·
Solve Downhill Problem: Find Distance of b with a=35m and theta=43.6
- page123
- · Replies 4 ·
How Is Altitude Calculated From Earth's Radius and Satellite Distance?
- aeromat
- · Replies 1 ·
Roller-coaster conservation energy
- Havenater23
- · Replies 1 ·
Why does light bend when it enters a different medium?
- cary5
- · Replies 1 ·
Tension on a moving cord (Elevator)
- notsam
- · Replies 9 ·
What is the solution to this waves/statics problem?
- Matt1234
- · Replies 1 ·
Finding pressure at point 3 in ideal gas cycle
- element72
- · Replies 3 ·
Calculating Resistance for Charging a Battery Circuit Using Ohm's Law
- dancergirlie
- · Replies 2 ·
Accelerating Platform, Tilting Object
- Master J
- · Replies 4 ·
Pivoting Bar and Kinetic Energy
- DanielB
- · Replies 1 ·
Circuit with just a battery and ground
- dimpledur
- · Replies 4 ·
Dielectric and Parallel Plate Capacitor
- opprobe
- · Replies 2 ·
Does the Bead's Speed Change as It Slides Along a Frictionless Curve?
- member 198005
- · Replies 3 ·
Sketching Waveforms in Circuits w/ Diodes
- dancergirlie
- · Replies 7 ·
How much energy is lost due to friction?
- fernancb
- · Replies 10 ·
Calculating Viscosity of Golden Syrup through Terminal Velocity Experiment
- samb53
- · Replies 1 ·
What is the force exerted by an object on a rope?
- n4rush0
- · Replies 2 ·
Solving Circuit with Three Pathways
- pdeco1
- · Replies 1 ·
How Do You Calculate Uncertainty in Physics Equations?
- tmilford
- · Replies 3 ·
Why does light take longer to pass through a material with higher refractive index?
- baileya
- · Replies 7 ·
How Do I Correctly Apply Node Voltage Analysis?
- Quincy
- · Replies 1 ·
What is the temperature and mass of air in a tire after a change in pressure?
- chawki
- · Replies 9 ·
Arranging Charged Objects to Exert Forces
- runningirl
- · Replies 11 ·
Such an easy problem but I cannot get it
- SprucerMoose
- · Replies 2 ·
Graph of velocity against radius?
- pconstantino
- · Replies 2 ·