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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Trying to understand electromagnetism
- vasya
- · Replies 38 ·
A new take on a relative velocity problem
- Shreya
- · Replies 88 ·
New EMF and Frequency: Understanding Faraday's Law of Induction
- ayans2495
- · Replies 21 ·
The potential electric and vector potential of a moving charge
- LCSphysicist
- · Replies 1 ·
How to Determine the Sign of the Doppler Shift?
- nao113
- · Replies 1 ·
Calculating Doppler Frequency Shift for Ultrasonic Waves
- nao113
- · Replies 1 ·
Answer the question about time of cooling of a ball
- Hurcane
- · Replies 12 ·
Calculate the coherent length of this LED
- nao113
- · Replies 5 ·
Applying Dalton's Law: From Popcorn Launchers to Innovative Products
- I LOVE CHEM
- · Replies 4 ·
Integrating motion equation to derive displacement
- annamal
- · Replies 16 ·
Thermodynamic Process that Produces the Most Work
- sd17
- · Replies 9 ·
Oblique slab dieletric material in a capacitor
- stefano77
- · Replies 28 ·
Intuition on the direction of friction in a rotational dynamics problem
- FranzDiCoccio
- · Replies 13 ·
Setting two expressions equal to each other
- ImmmCanadian
- · Replies 6 ·
Change of entropy in the Universe in a thermodynamic cycle
- lorenz0
- · Replies 10 ·
Environmental Physics - Radiative forcing effect on greenhouse effect
- ProbablySid
- · Replies 1 ·
Finding the Frequency Domain and Time Domain magnetic field
- EmmanKR
- · Replies 2 ·
Relationship between diameter and elastic potential energy of a wire
- RateOfReturn
- · Replies 7 ·
Cylinder Falling from Unwinding String
- milanocookie
- · Replies 2 ·
Requesting guidance on Commutators & Intro QM
- warhammer
- · Replies 1 ·
Time dependent canonical transformation
- LCSphysicist
- · Replies 3 ·
How Does Out of Phase Interference Affect Sound Perception?
- vegbird
- · Replies 5 ·
Probability to hit a spherical area
- LCSphysicist
- · Replies 7 ·
Question on Intro QM pertaining to Harmonic Oscillator
- warhammer
- · Replies 2 ·
Bragg angle with an inclined plane through a square lattice
- LCSphysicist
- · Replies 6 ·
Is Removing c from the Square Root in This Equation Correct?
- rgtr
- · Replies 25 ·
Single Slit Interference Pattern: Increased Distance
- belbin09
- · Replies 1 ·
Understanding Driving Force in the m2 Equation: Explained by Experts
- ANAli
- · Replies 4 ·
Find Projectile Flight Time Given Only Maximum Height
- trryan5
- · Replies 4 ·
Calculate tilt angle of a bar lifted via two ropes on fixed points
- Pp122
- · Replies 7 ·
Pressure drop through volumes of compressible fluid
- Natalinop
- · Replies 1 ·
Finding the Magnitude of the Force Acting on an Object
- correction_tape
- · Replies 7 ·
Angular momentum of a disk about an axis parallel to center of mass axis
- vcsharp2003
- · Replies 5 ·
Moment of inertia of a disk about an axis not passing through its CoM
- vcsharp2003
- · Replies 11 ·
Seeking Guidance to Find Surface & Volume Bound Charges of a Half Cone
- warhammer
- · Replies 5 ·
Calculating Average Velocity and Acceleration of the Singapore Flyer
- negation
- · Replies 72 ·
Centre of Mass/Tipping Point Question
- RateOfReturn
- · Replies 3 ·
Relativistic particle in uniform magnetic field (solution check)
- Adgorn
- · Replies 14 ·
Graphical Impulse calculation from the graph of force verus time
- yesmale4
- · Replies 4 ·
Determining $L_{o}$: Finding Angular Momentum of System
- vcsharp2003
- · Replies 45 ·
Momentum and impulse problem: A mass collides with another mass on a spring
- yesmale4
- · Replies 6 ·
Work done in adiabatic compression
- so_gr_lo
- · Replies 39 ·
Potential and Kinetic energy equations including drag coefficient
- ET333
- · Replies 1 ·
Find the Capacitance based on 3 different switch positions
- Jaccobtw
- · Replies 22 ·
What is the Power Loss in a Transformer?
- annamal
- · Replies 35 ·
Do electrons flow through a battery or is it something else?
- vcsharp2003
- · Replies 44 ·
Anti-reflective lenses and interference
- joshwarner
- · Replies 4 ·
Is the Result of the Path Integral Positive Due to Negative dx?
- Ark236
- · Replies 10 ·
New volume of balloon after adiabatic expansion
- so_gr_lo
- · Replies 22 ·
Electrical conductivity has an effect while charging by conduction?
- kololo
- · Replies 7 ·
Find capacitive reactance from Inductive reactance
- Jaccobtw
- · Replies 6 ·
Work and energy of electromagnetic wave with intensity I
- annamal
- · Replies 6 ·
What are Lambda and Z Parameters in Ultrasound B-mode Imaging?
- nao113
- · Replies 2 ·
The behaviour of an uncharged dielectric particle in a capacitor
- kololo
- · Replies 2 ·
Change in internal energy of particle colliding with piston
- maxim07
- · Replies 22 ·
Charge density on the surface of a conductor
- marcos7615
- · Replies 5 ·
How did they get that the vorticity = 2##\omega##?
- Hall
- · Replies 1 ·
How Does Quantum Uncertainty Define the Position of a Positron?
- LCSphysicist
- · Replies 7 ·
Can the number 1 be squared infinitely many times?
- rgtr
- · Replies 32 ·
Block of mass M attached to rope of mass m
- AspiringPhysicist12
- · Replies 10 ·
How Do You Derive Electron Energy in Physics Equations?
- Woopa
- · Replies 3 ·
Three Points at Vertices of Equilateral Triangle
- vibha_ganji
- · Replies 21 ·
Trigonometric problem: Sin7x= Sin24 * 6.4
- Eobardrush
- · Replies 12 ·
Adjusting the Power Factor of an RLC circuit
- annamal
- · Replies 20 ·
Golf Ball Projectile Motion Problem -- Solved
- Undeterred247
- · Replies 2 ·
Calculating x Position of a Moving Object
- Undeterred247
- · Replies 10 ·
Block on an accelerating wedge (part c only)
- AspiringPhysicist12
- · Replies 12 ·
Oscillating Spring Block System inside elevator
- andyrk
- · Replies 8 ·
Solving a Meteorite Problem: What Equations Should I Use?
- Yoppakung
- · Replies 4 ·
The necessary inclined force to rotate an object around an axis
- chane
- · Replies 14 ·
RL Circuit Initial Current Simplification
- annamal
- · Replies 52 ·
Academic First Law Of Thermodynamics Problem
- Kolin101
- · Replies 5 ·
Check My Solution for Second Problem (w,q)
- Kolin101
- · Replies 1 ·
Solving Cylinder+Bead System Problem | Hello.
- LCSphysicist
- · Replies 7 ·
Can Multiple Reflections Be Eliminated Using A-Mode Imaging in Ultrasound?
- nao113
- · Replies 35 ·
Energy momentum tensor - off diagonal terms
- LCSphysicist
- · Replies 7 ·
Momentum Collision Homework Problem -- help please
- lola1227
- · Replies 16 ·
Two slit interference: new intensity after doubling width
- maxim07
- · Replies 9 ·
Find the inductance of an inductor in a circuit
- Jaccobtw
- · Replies 18 ·
Understanding Back EMF in Electric Motors
- annamal
- · Replies 19 ·
Calculating acceleration of gravity and inertia of irregular lamina
- KYLESCHOONBEE
- · Replies 10 ·
Magnetic field generated by an infinitely long current-carrying wire
- annamal
- · Replies 43 ·
How to express ωₙ in terms of only mass (m) and stiffness (k)?
- Rae
- · Replies 4 ·
Energy recovered from a regenerative braking system
- sanderalan
- · Replies 9 ·
Solving for x in Circular Current Equation
- Jaccobtw
- · Replies 9 ·
Understanding Torque in a Magnetic Field with Loop
- annamal
- · Replies 37 ·
Wine Glass Resonance Frequency
- BobDylan22
- · Replies 21 ·
Resistive force exerted on a sphere (air resistance)
- alejo ortega
- · Replies 8 ·
I am a little confused by the quoted text is worth mentioning.
- rgtr
- · Replies 8 ·
Relationship between accelerations of blocks 1 and 2
- vcsharp2003
- · Replies 27 ·
The acceleration of protons using a changing magnetic field
- Jaccobtw
- · Replies 6 ·
How Can You Solve a Differential Equation Involving Exponential Drag Force?
- MichaelTam
- · Replies 41 ·
Covariant derivative in coordinate basis
- LCSphysicist
- · Replies 2 ·
A curved wire rotating in and out of a magnetic field
- Jaccobtw
- · Replies 21 ·
EMF generated in a blood cell by an oscillating magnetic field
- Jaccobtw
- · Replies 15 ·
Ratio of partial pressures of gas
- so_gr_lo
- · Replies 3 ·
Calculating a large toroid's magnetic field
- annamal
- · Replies 6 ·
Force to apply to a loop moving away from a current-carrying wire
- lorenz0
- · Replies 4 ·
Potential vector of a oscilating dipole:
- LCSphysicist
- · Replies 2 ·
Mass Tipping a Plank: Independent & Dependent Variables + Data
- uniquegirl
- · Replies 6 ·