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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Why Is the Small Angle Approximation Used in Optics Problems?
- Gauss M.D.
- · Replies 5 ·
Finding the reaction force - moments and equilibrium
- pturo
- · Replies 4 ·
Finding magnetic field in wire with non-uniform current density
- GreatEscapist
- · Replies 2 ·
Finding force produced by a Magnetic Field on a Proton
- MikeBriganti
- · Replies 8 ·
Projectile motion of car driving off a cliff
- Alyssa Jesse
- · Replies 27 ·
Kinematics bouncing ball problem
- mridulag
- · Replies 3 ·
Conservation of energy/inclined planes
- Alyssa Jesse
- · Replies 12 ·
Displacement Current understanding
- carnot cycle
- · Replies 11 ·
What is the Solution to a Thermodynamics Problem with a Mercury Vase?
- DorelXD
- · Replies 18 ·
Contact Pressure Vs Traction Vs Deformation in a wire
- ounvme
- · Replies 1 ·
Weight distribution over multiple scales
- Alyssa Jesse
- · Replies 13 ·
Magnitude of force experienced by the electron and direction of force
- a.gracias
- · Replies 5 ·
Show that kinetic energy of the earth after a collision can be ignored
- questtosuccess
- · Replies 2 ·
Electric field at points p3 and p4 inside and outside a conductor
- rgujju
- · Replies 4 ·
Why Should the Product of Magnifications Be Equal to 1?
- miaou5
- · Replies 3 ·
Electric Field Due To A Ring and Disk
- Bashyboy
- · Replies 4 ·
Newton's Law: sliding down a slope
- Nigzzzz
- · Replies 1 ·
Does window tint darkness level affect heat reduction in cars?
- hhm28
- · Replies 5 ·
What is the Maximum Safe Depth for a Submarine Window?
- baddin
- · Replies 2 ·
Finding the Max Extension of a Spring
- rgujju
- · Replies 3 ·
Orientation on Calculus Work Problem. Hooke's Law.
- Dan350
- · Replies 5 ·
Damped Oscillations in an RLC circuit
- electrohau5
- · Replies 5 ·
Doppler shift with 2 trombones
- Gauss M.D.
- · Replies 8 ·
Is Speed the Same as Magnitude of Velocity in Horizontal Projectile Motion?
- MathHelpa
- · Replies 2 ·
Equipotential Surfaces physics problems
- LovePhys
- · Replies 1 ·
Projectile Motion: velocity and speed
- MathHelpa
- · Replies 2 ·
Converting a galvanometer to ammeter and voltmeter.
- a.gracias
- · Replies 5 ·
Minimum angle for 27 m bus jump at 30 m/s with air resistance
- kobijean
- · Replies 4 ·
Solving for time with an non consistant acceleration
- laketri
- · Replies 7 ·
Velocity and acceleration in a frictionless circular loop
- KKiefhaber
- · Replies 2 ·
Bar pivoted at end-conservation of energy
- natasha13100
- · Replies 20 ·
Acceleration of a Block Sliding on a Wedge
- Saitama
- · Replies 21 ·
Energy density of magnetic field in a solenoid
- mdf730
- · Replies 3 ·
Finding Angular Speed of Hoop Using Energy Methods
- student34
- · Replies 1 ·
Current induced in a charged hollow sphere
- Final_HB
- · Replies 25 ·
How can we determine velocity from a position-time graph without using calculus?
- oldspice1212
- · Replies 3 ·
What does the area under a Distance vs Time graph indicate
- urbano
- · Replies 10 ·
Square pivoted at corner-conservation of energy
- natasha13100
- · Replies 3 ·
Calculating Velocity of m1 After Falling a Distance of d Meters over a Pulley
- postfan
- · Replies 19 ·
Thermodynamic process P^2+aV^2=constant
- rafaelgm9
- · Replies 1 ·
Block swinging on string pulls box across table at friction limit
- postfan
- · Replies 21 ·
Finding minimum values for problems
- tooperoo
- · Replies 3 ·
What is the Acceleration of C in This Constrained Motion Problem?
- Saitama
- · Replies 24 ·
What Determines the Direction of Static Friction in Rolling Without Slipping?
- peripatein
- · Replies 11 ·
Freefall in a Newtonian gravitational field
- Medd
- · Replies 11 ·
Lifting a car using a hydraulic lift
- baddin
- · Replies 3 ·
Electric field between 2 objects and electric force on object?
- megabassdude
- · Replies 2 ·
Measuring pressure using a manometer.
- baddin
- · Replies 3 ·
Opening the refrigerator door to cool a room.
- ShizukaSm
- · Replies 6 ·
Conservation of Momentum Questions
- junaid314159
- · Replies 4 ·
What is the heat flow rate [ ]?
- s3a
- · Replies 8 ·
Finding Mass and Velocity in an Elastic Collision at an Angle
- maxalador
- · Replies 23 ·
Liquid pressure in microgravity
- 2147483647
- · Replies 4 ·
Why is W=m*g relevant if I am standing still and not moving ?
- urbano
- · Replies 6 ·
Relativistic Doppler shift formula applied to wavelength ratio
- Solarmew
- · Replies 5 ·
Electrostatics- spheres leaking charge
- zukkash
- · Replies 9 ·
Uniform rod pivoted off-center
- natasha13100
- · Replies 9 ·
Change in energy stored on a capacitor when dielectric is changed.
- Final_HB
- · Replies 20 ·
Which Formula to Use for Sound Intensity Calculation?
- joshuajava
- · Replies 6 ·
Is momentum conserved in y direction ?
- bksree
- · Replies 18 ·
Calculating Mass of Water Pumped by a Motor
- hacker804
- · Replies 4 ·
What Determines the Electric Field Magnitude at Half the Radius of a Solenoid?
- freddy13
- · Replies 1 ·
Maximum perpendicular height above an inclined plane
- Woolyabyss
- · Replies 7 ·
Find Maximum extension in the spring-Work Energy Problem
- Tanya Sharma
- · Replies 16 ·
MoI of a Sphere using Spherical Coordinates
- Ackbach
- · Replies 2 ·
Calculating Charge and Current in a Resistor Circuit
- whitehorsey
- · Replies 9 ·
Maximums on a Diffraction Grating
- MicahP
- · Replies 3 ·
Ratio of mirror widths in a periscope with separation L and eye distance l
- ananya17
- · Replies 1 ·
Launching a projectile from a spinning wheel
- natasha13100
- · Replies 25 ·
Using elastic equations to calculate height
- maxalador
- · Replies 16 ·
Gaussian Surface and Charge Density
- whitehorsey
- · Replies 2 ·
How much extra force is needed to pull a heavier toboggan?
- STEMucator
- · Replies 7 ·
Tension in strings supporting a rotating sphere
- thestar88
- · Replies 6 ·
Projectiles On An Inclined Plane
- Woolyabyss
- · Replies 3 ·
Work problem on winding up a cable
- Dan350
- · Replies 7 ·
A gyroscopic rotating magnetic field
- Loki Prankster
- · Replies 3 ·
Block of wood pushed across floor: net force, friction, and applied force
- STEMucator
- · Replies 3 ·
How Does a Variable Coefficient of Kinetic Friction Affect Block Acceleration?
- bestchemist
- · Replies 10 ·
Horizontal force to keep rolling axle at constant speed on rails
- dmayers94
- · Replies 12 ·
Pulley Problem 1: Calculating Masses Acceleration & Tension
- Anthonyphy2013
- · Replies 5 ·
Calculating instantaneous acceleration
- maxalador
- · Replies 10 ·
Simple Harmonic Motion: Period Calculation and Newton's Second Law Explanation
- SirPlus
- · Replies 3 ·
How Can I Calculate the Displacement and Path Length of a Fly in a 3D Room?
- maxalador
- · Replies 2 ·
Understanding Electric Field Superposition in the Presence of Multiple Charges
- Bashyboy
- · Replies 6 ·
Can Conservation of Energy Explain Particle Movement on a Frictionless Surface?
- Sam_Hawkins
- · Replies 8 ·
How Do You Calculate Uncertainty in Ammeter Readings?
- songoku
- · Replies 2 ·
Gravitational force between the Sun and Venus
- STEMucator
- · Replies 6 ·
Optics Question, where is the lens
- oneplusone
- · Replies 5 ·
Motion of an object dropped from a descending and ascending helicopter
- donking225
- · Replies 6 ·
Total thermal energy dissipated when capacitor discharges through resistor
- electrohau5
- · Replies 7 ·
Maximum working shear stress and working force?
- BlueCB
- · Replies 13 ·
Finding frequency, wavelength, speed from wave equations
- DavidCantwell
- · Replies 6 ·
Gallons of H20 needed to cool molten steel
- tconlon33
- · Replies 9 ·
How Do You Calculate the Power Supplied by Batteries A and B?
- electrohau5
- · Replies 7 ·
How Do You Calculate the Upward Force Needed to Keep a Board Level?
- gomathireddy
- · Replies 4 ·
Mousetrap Experimental Investigation
- DelToro
- · Replies 8 ·
Find acceleration given initial and final velocity, and displacement
- donking225
- · Replies 4 ·
What is the Tension in Steel Wires Supporting Aircraft Wing?
- BlueCB
- · Replies 13 ·
What is the Correct Final Temperature in an Ice-Water Heat Transfer Experiment?
- sunflowerzz
- · Replies 11 ·
Block pull, Problems with trig to isolate for theta.
- cambo86
- · Replies 2 ·