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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Period of small oscillation for pulley system with masses
- doktorwho
- · Replies 4 ·
Calculate the Kinetic Frictional Force
- SRooney
- · Replies 1 ·
Capacitor discharge time vs resistance not linear
- Taniaz
- · Replies 14 ·
Dot product of vector sum and cross product with scalar multiple
- AidenPhysica
- · Replies 23 ·
Using a multimeter as an ammeter
- Taniaz
- · Replies 31 ·
What is the equilibrium temperature of a collector plate?
- Galactium
- · Replies 2 ·
Calculating Distance and Displacement in Vector Problems
- barroncutter
- · Replies 3 ·
Position Operator in Momentum Space?
- Crush1986
- · Replies 20 ·
Find the output voltage Vo in a circuit with dependent voltage source
- itzernie
- · Replies 10 ·
Electron/proton released from charged parallel plates
- PolarBee
- · Replies 9 ·
How to find acceleration of object without mass?
- grbd920
- · Replies 2 ·
X and Y components of a vector using a graph of speed/time
- AidenPhysica
- · Replies 2 ·
Equilibrium temperature of some ice and steam
- ElPimiento
- · Replies 9 ·
Electric Field at the End of a Line of Charge
- bhdmia
- · Replies 1 ·
Plane displacement, velocity and speed from A to C via B
- AidenPhysica
- · Replies 7 ·
Measuring the h conv from velocity not the same as that he gave
- Manaf12
- · Replies 2 ·
Calculating weights on a slope using virtual work.
- albertrichardf
- · Replies 15 ·
Isobaric and Isochoric Process Combined
- RMalt
- · Replies 8 ·
Draw a diagram, specify intercepts
- Vitani11
- · Replies 2 ·
2008 us physics olympiad pendulum in electric field
- timetraveller123
- · Replies 5 ·
A rope falling off an inclined plane
- Elvis 123456789
- · Replies 4 ·
What is the relationship between energy and mass in a two-particle collision?
- Guaicai
- · Replies 3 ·
Resistor made from two materials
- RoboNerd
- · Replies 9 ·
Work done in assembling a system of charges
- RoboNerd
- · Replies 1 ·
Question about work on an electric charge
- RoboNerd
- · Replies 2 ·
Determine the speeds of the 2 masses
- Neon32
- · Replies 3 ·
How Is Force Calculated in a Human Cannonball Stunt?
- Arman777
- · Replies 10 ·
Understanding Electric Fields and Flux in Charged Objects
- WWCY
- · Replies 7 ·
How Is Fractional Uncertainty Defined When the Measured Value Is Zero?
- RaduAndrei
- · Replies 8 ·
Projectile Motion + Kinematics Clown Problem
- Cameron1919
- · Replies 1 ·
Why Does a Smaller Radius Increase Centripetal Force?
- cclixn
- · Replies 1 ·
How can you anticipate when to add the atmospheric pressure?
- hbk69
- · Replies 13 ·
What is the Moment of Inertia of a Slender Rod in a Cable System?
- LiviaPimentel
- · Replies 3 ·
Energy in system of two conducting spheres
- RoboNerd
- · Replies 5 ·
Introductory Vector Problem- Airplane emergency landing
- Jarvis88
- · Replies 2 ·
Electric field acting on a negative test charge due to semicircular rod
- AnonBae
- · Replies 3 ·
Looking for speed using the wave equation
- Ashley1nOnly
- · Replies 2 ·
Inductance per unit length of coaxial transmission line
- Abdulwahab Hajar
- · Replies 3 ·
Finding the effect of air resistance on period of oscilation
- Muizz
- · Replies 14 ·
Relativity of Simultaneity and lightening
- WWCY
- · Replies 8 ·
Heat Transfer. Ice and steam in a container (easy)
- llatosz
- · Replies 2 ·
How to find the cannon angle for maximum range
- kalpalned
- · Replies 2 ·
Efficiency of energy transformation on a slide
- gungo
- · Replies 1 ·
What are the key components of sinusoidal wave equations?
- Mr Krabs
- · Replies 1 ·
Energy from the Sun received at the Earth cross section
- Puchinita5
- · Replies 2 ·
Electric field-boundary conditions question
- Abdulwahab Hajar
- · Replies 1 ·
Falling Mass on a Pulley - Rotational Energy
- hitspace
- · Replies 9 ·
Magnetic flux through a triangular loop?
- Abdulwahab Hajar
- · Replies 6 ·
Scaling Rotational Inertia - from Model to Full Size
- hitspace
- · Replies 6 ·
Deriving the wave equation for a vibrating string
- John004
- · Replies 1 ·
How Does Temperature Affect the Lifting Capacity of a Hot Air Balloon?
- Ian Baughman
- · Replies 18 ·
How Does Electric Field Direction Affect Work on a Negative Charge?
- RoboNerd
- · Replies 2 ·
With a circular orbit, when do I use 1/2mv^2
- jakeginobi
- · Replies 6 ·
Torque on wheel in magnetic field
- RoboNerd
- · Replies 4 ·
Unconventional capacitors connection
- Drako Amorim
- · Replies 7 ·
Precision vs accuracy with four measurements of height
- Noreturn
- · Replies 3 ·
Force per unit length acting on four parallel wires
- joeyc
- · Replies 1 ·
Finding the center of mass of an arbitrary uniform triangle
- John004
- · Replies 20 ·
Derivation of spillway flow formula Q = (2/3)w√(2gy³)
- kubaanglin
- · Replies 3 ·
Electric field at a point (point charge and semi-circle rod)
- AnonBae
- · Replies 3 ·
Alpha Particle Approaching a Gold Nucleus
- FelaKuti
- · Replies 3 ·
Force on a rod attached to a pivot.
- albertrichardf
- · Replies 2 ·
Rotational Dynamics Designing a Propeller Velocity/Acceleration
- hitspace
- · Replies 5 ·
A Steamroller on a Slope (Moment of Inertia)
- srecko97
- · Replies 3 ·
Why does friction sometimes have the same direction as movement?
- Pouyan
- · Replies 19 ·
What Surface Does ds Represent in Calculating Magnetic Flux Through a Toroid?
- Abdulwahab Hajar
- · Replies 2 ·
How does friction act between PA and AB in an equilibrium of forces system?
- nickyfernandezzz
- · Replies 3 ·
Elementary pendulum equation of motion
- jonjacson
- · Replies 7 ·
Solving for Velocity on a Pulley System
- RoyalFlush100
- · Replies 3 ·
Finding time with distance, initial velocity and acceleration
- Justin Che
- · Replies 1 ·
How Does Force Scale with Radius in Orbital Motion?
- Vitani11
- · Replies 12 ·
Relativistic Particle Speed Approximation using Total Energy
- Ken Miller
- · Replies 1 ·
What is the diameter of each hole in the shower head?
- Galactium
- · Replies 1 ·
What is the mass of the water in the stirrer supported by surface tension?
- Galactium
- · Replies 2 ·
What is the mass ratio of melting ice cubes in different temperatures?
- Biker
- · Replies 7 ·
Possible variables for Coulombs Law?
- Amber Mayson
- · Replies 5 ·
Car crash deceleration with 2600 kg car hitting wall at 142 km/h
- denzel
- · Replies 14 ·
Charge carrier drift velocity of wire
- ravsterphysics
- · Replies 10 ·
Free Fall Experiment: Predicting Ball's Maximum Height and Time
- Emily Falk
- · Replies 4 ·
Why does coating thickness reduce resistance per unit length?
- Abdulwahab Hajar
- · Replies 6 ·
Calculating Current in a Wire: Applying PD and Cross-Sectional Area
- ravsterphysics
- · Replies 5 ·
Compressions and rarefactions of a wave
- ravsterphysics
- · Replies 3 ·
What has a higher total energy?
- jakeginobi
- · Replies 4 ·
Finding frequency of a specific mechanical oscillator -- horizontal rod on pivot
- srecko97
- · Replies 45 ·
Container of Liquid Accelerated Upward
- Chozen Juan
- · Replies 1 ·
Calculating Echo Time for Sound in Water and Air
- STEMucator
- · Replies 1 ·
Constant Acceleration: find time
- Akar
- · Replies 2 ·
Ball is thrown at the edge of the roof of a building
- rosekaty
- · Replies 31 ·
Torque, beam, angular acceleration problem
- CricK0es
- · Replies 4 ·
Lead ball temperature rise after hitting wooden cube
- nickyfernandezzz
- · Replies 9 ·
Circuit with NTC/Voltmeter/Ammeter
- ravsterphysics
- · Replies 1 ·
Rubber Band Spinning in midair
- Chozen Juan
- · Replies 5 ·
Out of Phase Waves: Solving the Relevant Equation
- ravsterphysics
- · Replies 2 ·
How to Calculate Time, Weight, and Wavelength in a String with Weight System?
- Vanessa Avila
- · Replies 22 ·
Rotational kinematics of a spherical rock upon collision
- Nerrad
- · Replies 22 ·
Circuit question with two batteries and resistors in pa
- FelaKuti
- · Replies 2 ·
Why does a straw look bent in water?
- ravsterphysics
- · Replies 3 ·
Finding where to place particle 3 to minimize electrostatic force
- RoyalFlush100
- · Replies 2 ·
Circular motion: ring on string
- Faiq
- · Replies 4 ·
Why does (ax, by) not transform like a vector under rotation?
- AMichaelson
- · Replies 2 ·