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 You Calculate the Third Force in Static Equilibrium?
- starfish101
- · Replies 3 ·
How Far Behind a Mirror Is an Image Created by a Flat Mirror?
- kill00
- · Replies 1 ·
Force to move two stacked boxes at constant speed with pulley
- fd25t6
- · Replies 2 ·
Displacement given coefficient of friction and velocity
- mandy9008
- · Replies 3 ·
Pendulum in accelerating traincar
- buttermellow7
- · Replies 1 ·
How far from the eyepiece is the image formed by the objective?
- sona1177
- · Replies 1 ·
What Value of d/a Causes Diffraction to Eliminate the Third Bright Side Fringe?
- Zhalfirin88
- · Replies 2 ·
What is the angular velocity of the merry-go-round now?
- AlvinC
- · Replies 2 ·
Find speed of rollercoaster on point on loop
- aeromat
- · Replies 4 ·
Calculate Mass Velocity with Energy Methods
- rj101
- · Replies 1 ·
Varignons theorem fail question
- sukibelle
- · Replies 3 ·
Circular Motion Forces Exerted On Ferris Wheel
- cal.queen92
- · Replies 2 ·
Newton's third law with normal and gravitational forces on a resting box
- ProPM
- · Replies 4 ·
How can the force NOT be zero here?
- flyingpig
- · Replies 7 ·
Moment of Inertia problem from MCAT practice book.
- MCAT35
- · Replies 4 ·
Normalizing ψ(x) = A(1 - e^(ikx)) for 0 < x < 2π/k
- CyberShot
- · Replies 1 ·
Understanding Torque Balance and Center of Gravity in a See-Saw
- Wasseem92
- · Replies 2 ·
Can you work out power without knowing displacement?
- jjones1573
- · Replies 11 ·
What is the final speed of the truck and car after an elastic collision?
- godkills
- · Replies 5 ·
Magnetic Force on a Current Carrying Wire
- taliaroma
- · Replies 3 ·
How Do Different Types of Tires Affect Car Dynamics?
- denoxit
- · Replies 1 ·
Coulomb's law, R is the inverse to F?
- Versus
- · Replies 1 ·
Why is the mean x-velocity zero in Maxwell-Boltzmann distribution?
- AStaunton
- · Replies 1 ·
Determine the magnetic field vector
- Fisicks
- · Replies 1 ·
Finding currents in a three-battery circuit using Kirchhoff's laws
- Jemal
- · Replies 1 ·
Deriving the Fourth Mass in a Hanging Masses Problem
- Stochastic13
- · Replies 4 ·
Find Work Done on 230 kg Crate in 12 m Displacement
- Gold3nlily
- · Replies 1 ·
If instantaneous EMF equals back EMF in an inductor, how does current flow?
- sahil_time
- · Replies 2 ·
Wheel rotating at 115 rpm with angular acceleration of 18 rad/s²
- Kevin1199959
- · Replies 5 ·
A conducting rod slides down between two frictionless vertical copper tracks
- cclement524
- · Replies 3 ·
Concepts : Destructive waves vs. equilibrium
- Essenar
- · Replies 1 ·
What's another way I could find the spring constant experimentally?
- sodium40mg
- · Replies 7 ·
Magnetic Field, Proton, Dynamics
- Dekoy
- · Replies 1 ·
Understanding Virtual Objects and Negative Do Values in Lenses
- CaneAA
- · Replies 2 ·
Relativistic energy and momentum
- roman15
- · Replies 10 ·
Circular Motion and maximum speed Problem
- thanlong01
- · Replies 1 ·
How Fast Must a Soccer Player Run to Catch a Ball?
- Stochastic13
- · Replies 7 ·
The solutions and question make NO SENSE AT ALL
- flyingpig
- · Replies 9 ·
More tension in a wire attached to a rod
- hooper.d
- · Replies 5 ·
Torque from beam and worker on cantilever beam
- Blistex
- · Replies 2 ·
Prism Optics Range of Refraction Angles
- dvolpe
- · Replies 7 ·
Moment of inertia from a cylinder.
- notsam
- · Replies 6 ·
LC oscillation theory resources
- cupid.callin
- · Replies 1 ·
Electromagnetic wave, intensity, electric field problem
- ashleyd
- · Replies 3 ·
Solving an Accelerating Car's Revolutions
- jjones1573
- · Replies 3 ·
How Do You Calculate the Tension in the Cable Supporting a Pivoted Steel Bar?
- hooper.d
- · Replies 1 ·
Calculating Force on Rectangular Loop from Straight Wire
- Fisicks
- · Replies 1 ·
Physics friction incline question
- Kevin1199959
- · Replies 10 ·
Moment of Inertia (no calculus) - What am I missing?
- Femme_physics
- · Replies 11 ·
How do I solve static equilibrium problems using components of forces?
- Peter G.
- · Replies 2 ·
Orbital speed of Mars in mph
- rsyodoom2005
- · Replies 5 ·
Calculating Capacitance to Limit Voltage in Solenoid
- Liquidxlax
- · Replies 4 ·
How Does Material Thickness Affect Magnetic Force and Field Strength?
- Artemirr
- · Replies 1 ·
What is the Exitant Radiance from a Lambertian Plate on a Cloudy Day?
- Hodranoel
- · Replies 1 ·
Solving Oscillations in an Electrical Circuit
- Thefox14
- · Replies 3 ·
Calculating Tangential and Angular Velocity?
- Bananarama
- · Replies 4 ·
Calculate the electric potential
- Nickclark
- · Replies 4 ·
Derive a formula for equivalent resistance
- boo_lufc
- · Replies 2 ·
Rotational Motion and Conservation of Energy
- AikiGirl
- · Replies 4 ·
Calculating Magnetic Moment of Rotating Charge
- blueyellow
- · Replies 6 ·
Deriving Biot-Savart's Law, kinda a math problem not really physics
- flyingpig
- · Replies 44 ·
What is the Velocity of the Balloon When a Man Moves Up a Ladder Attached to It?
- subho123
- · Replies 2 ·
Radio Wave Question: Reception Better for Low or High Frequencies?
- fran1942
- · Replies 1 ·
Calculating Work Done by a Force on a Coin
- dorkymichelle
- · Replies 1 ·
How to Determine Temperature of Heat and Cold Reservoirs in a Carnot Cycle?
- eliassiguenza
- · Replies 2 ·
Taylor Approximation (I think) on Transmission Coefficient
- erok81
- · Replies 13 ·
Why use x for the B-field distance in MIT 8.02 problem 31-9
- flyingpig
- · Replies 6 ·
Conservation of Momentum in a Fishy Encounter
- amynjax23
- · Replies 1 ·
Finding force components from 97g at 338 degrees
- neoncrazy101
- · Replies 2 ·
Pendulum Collision Homework: Mass, Speed Calculation
- KaiserBrandon
- · Replies 8 ·
Can Static Friction Do Positive Work? A Pen and Paper Experiment
- Pathos_Verdes
- · Replies 6 ·
RC Circuit, what does it imply when resistance = capacitive reactance (R=Xc)?
- mattpd1
- · Replies 2 ·
Person hanging over a ledge counterbalanced by a chair
- gmtarknoid
- · Replies 1 ·
Acceleration on inclined plane without knowing mass
- jjones1573
- · Replies 2 ·
Consider a fermion gas of N electrons in volume V
- blueyellow
- · Replies 1 ·
Accelerometer - Movement pattern recognition (iphone)
- reesefrancis
- · Replies 2 ·
How Does Placement of Lead Affect the Buoyancy of a Wood Block?
- tigers4
- · Replies 5 ·
Calculate Distance Buoy Sinks w/ Man on Top
- alexfloo
- · Replies 2 ·
Moment of Inertia perpendicular to lamina
- ChemistryJack
- · Replies 1 ·
How is the Energy Increasing in a Venturi Experiment?
- lefteris28
- · Replies 8 ·
Finding v_peak in Maxwell-Boltzmann distribution derivative
- AStaunton
- · Replies 1 ·
What is the Colatitude Angle in Gravitation?
- cupid.callin
- · Replies 5 ·
Electric potential of the arc of a circle
- madah12
- · Replies 2 ·
Electric potential of point charge
- pyninja
- · Replies 3 ·
How Can You Derive the Average Velocity in a Maxwell-Boltzmann Distribution?
- AStaunton
- · Replies 1 ·
Gravitation - Satellite with same w as earth
- cupid.callin
- · Replies 2 ·
How Is the Average Velocity Derived from the Maxwell-Boltzmann Distribution?
- AStaunton
- · Replies 2 ·
Motion with constatnt acceleration problem
- Stochastic13
- · Replies 6 ·
Ranking capacitors by the potential difference across them.
- dswatson
- · Replies 1 ·
Using the right hand rule with Lenz's law to find induced current direction
- jti3066
- · Replies 1 ·
Bridge truss Static Equilibrium
- pegasus24
- · Replies 2 ·
Motion in B Field: Solve for Focussing Distance
- bon
- · Replies 5 ·
How Does Tension Affect the Mass and Velocity of a Guitar String?
- jamielees
- · Replies 1 ·
Acceleration on a ramp with coefficient of friction
- reganw
- · Replies 3 ·
What is the impact speed of a proton colliding with a charged plastic bead?
- Sarah88
- · Replies 2 ·
Calculating Terminal Voltage of Batteries with Opposing Currents
- pb23me
- · Replies 4 ·
Finding charge in a box with Gauss's law when field angles vary
- Kreamer
- · Replies 7 ·
Magnetic flux through tilted loop inside solenoid at t=3s
- Bryon
- · Replies 6 ·
Friction Lab Investigation: Changing the mass
- Gerard77
- · Replies 4 ·
Math wrong with physics springs problem
- math111
- · Replies 4 ·