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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Particle that moves in an electric and magnetic field
- fight_club_alum
- · Replies 6 ·
Clearing a wall with a golf shot
- Oliver321
- · Replies 6 ·
How can I find the initial velocity of a projectile on an incline?
- Riman643
- · Replies 9 ·
Simple Harmonic motion of a Pendulum
- dolvo
- · Replies 1 ·
Kirchhoff's rule for circuit with two batteries
- QuantumRose
- · Replies 6 ·
Find ∆V while sliding a card through a card reader with magnetic field
- kayneblue12
- · Replies 4 ·
Vector Difference: Explained Through Parallelograms
- subhradeep mahata
- · Replies 8 ·
Strength of magnetic field at the end of a wire wrapped nail.
- kayneblue12
- · Replies 1 ·
Need someone to check my equations and work on this induced EMF problem
- dj6859
- · Replies 1 ·
Show that a tilted free liquid surface undergoes shear stress
- Est120
- · Replies 1 ·
Energy of Two Gamma Rays Produced by Pion Decay
- TheBigDig
- · Replies 2 ·
Finding the height of a column of mercury
- hover
- · Replies 2 ·
Tension in a Rope from Lowering Down and Friction Braking Torque at Stop
- Herbid
- · Replies 3 ·
Why is the x-component of the electric field at point P positive?
- Kasiopea
- · Replies 1 ·
Finding the center of mass of a homogeneous object
- Lone Wolf
- · Replies 6 ·
Divergence of an Electric Field due to an ideal dipole
- rakso
- · Replies 6 ·
Determine the acceleration of the cylinder axis if there is no slip
- Davidllerenav
- · Replies 13 ·
Increase Photocell Illumination: Effect on Current
- bonbon22
- · Replies 3 ·
Find the direction and magnitude of an electric field
- jmemo
- · Replies 7 ·
How Do You Find Current and Voltage for Resistors with 4V, 8V, and 12V Supply?
- BAH0003
- · Replies 5 ·
A glider of length 12.4 cm moves on an air track
- Alexanddros81
- · Replies 14 ·
1-D wave resonance in the case of an Open-Ended String
- Another
- · Replies 3 ·
Inclined Plane Problem with Kinetic Friction
- physicsmaster11232
- · Replies 3 ·
Need a force to accelerate an object on a frictionless surface
- DavidMasabo
- · Replies 2 ·
Solving this problem using the energy method
- Abhishek11235
- · Replies 7 ·
An astronaut is piloting her spacecraft
- donchinkjao
- · Replies 1 ·
𝑗 - 𝜔 method alternating current circuit help
- magnuol
- · Replies 8 ·
Calculating Magnetic Force with Vectors
- fight_club_alum
- · Replies 3 ·
Find the charge of this particle moving in a magnetic field
- fight_club_alum
- · Replies 3 ·
Performance data of a car owned by a student....
- Alexanddros81
- · Replies 5 ·
How do you calculate wind speed using the Doppler effect?
- Vivman
- · Replies 4 ·
Intensity question (difficult)
- bonbon22
- · Replies 17 ·
How to calculate the moment of inertia of a bar with two masses on it?
- Davidllerenav
- · Replies 24 ·
Find the power supplied by the 1V source in the circuit using nodal analysis
- Electgineer
- · Replies 7 ·
Understanding the reasoning of this answer
- Abhishek11235
- · Replies 1 ·
Relative Motion of Charges Question
- gibberingmouther
- · Replies 10 ·
Bouyancy force -- What mass can the balloon carry?
- Taylan
- · Replies 9 ·
Transformer, Oscillator & transposing fomulae
- cjm181
- · Replies 2 ·
Given RMS Speed, Find Temperature
- asifion
- · Replies 21 ·
Understand Faraday's Law and Lenz' Law
- christang_1023
- · Replies 3 ·
What is the mean moleculer weight of the gas at the solar core?
- Thomas Smith
- · Replies 3 ·
Is this relationship directly proportional?
- bonbon22
- · Replies 8 ·
Understanding Power Equations: How Do You Solve for V2 and R in Ohm's Law?
- ry12
- · Replies 4 ·
Is the Velocity Calculation Affected by Gravity or Elastic Potential Energy?
- sacred76
- · Replies 11 ·
Rank the faces in order of decreasing water pressure
- demonix
- · Replies 4 ·
Solve the differential equation of motional emf
- christang_1023
- · Replies 5 ·
LR Circuit Analysis: Solving Equations w/ Kirchhoff's Rule
- christang_1023
- · Replies 7 ·
Induced charge density at the interface of dielectric slabs
- Kaguro
- · Replies 3 ·
How do I calculate elastic potential energy?
- alicia12131415
- · Replies 4 ·
Rotating Disk and Hanging Mass Calcululations
- badger1999
- · Replies 1 ·
Charged Capacitor Connected to an Uncharged Capacitor in Series
- Mark Zhu
- · Replies 9 ·
What is the Frequency of Emitted Radiation from a Moving Hydrogen Atom?
- Rajanjx786
- · Replies 2 ·
Ideal gas problem after constraint removed
- Clara Chung
- · Replies 1 ·
What is the equation for U in the Equipartition Theorem?
- Hypervalent_Iodine
- · Replies 1 ·
Find the equilibrium temperature & the amount of ice/water
- jpastones
- · Replies 2 ·
Norton's Theorem with Dependent Sources?
- Master1022
- · Replies 2 ·
Given the Volume, Find the Number of Atoms
- asifion
- · Replies 3 ·
Distance Modulus of a Star cluster
- James Beedy
- · Replies 1 ·
Physical units problem for a DC Motor with viscous friction
- IzitoI
- · Replies 3 ·
Find the acceleration and the work done by a force pulling a spool?
- Davidllerenav
- · Replies 8 ·
Weight vs. Mass: Explaining the Difference
- koiuuuuuuuuuuu
- · Replies 4 ·
Why Does Using A=L^2/4 Lead to Incorrect Results in Calculating EMF in a Loop?
- pokemon123
- · Replies 1 ·
Calculating Sound Power: I=P/A & Dependency on Area
- Mahathir
- · Replies 5 ·
Electromotive force (EMF) induced in a rectangular loop
- Fleuryette
- · Replies 2 ·
Simple mechanics question: will reading of the scale change?
- tonnijames
- · Replies 5 ·
Find the force of Friction and minimum coefficient of friction
- WhatAnAnomaly
- · Replies 1 ·
Difficulty understanding Centre of Gravity
- trew
- · Replies 10 ·
Capacitance and induced charge of a spherical Capacitor + dielectric
- titansarus
- · Replies 1 ·
Force on a metal bar across two wires in a magnetic field
- aolivias
- · Replies 2 ·
Circuit Transformations: Norton's Theorem
- Master1022
- · Replies 5 ·
Is 1800 Newton meters enough torque to generate 1.5 kilowatts of power?
- Tony Singh
- · Replies 4 ·
What is the direction of work in this figure?
- patric44
- · Replies 5 ·
Young's Modulus, Stress/Strain graph and Calculating Energy
- trew
- · Replies 1 ·
What is the voltage across this capacitor, inductor and resistor?
- Tesladude
- · Replies 9 ·
Change in entropy when mixing cold and hot water
- tuki
- · Replies 12 ·
Rotational Circular Motion with fixed ends and a spinning button in the middle
- rushy
- · Replies 20 ·
How far will the middle point of the beam sag under load?
- HAF
- · Replies 15 ·
Simple units conversion question
- bonbon22
- · Replies 5 ·
Magnetic force on a wire due to a loop
- Ngineer
- · Replies 1 ·
The average EMF in a coil rotating in a magnetic field
- Asmaa Mohammad
- · Replies 12 ·
Big Yo-Yo problem (Rotational Dynamics with Kinematics? Maybe?)
- ajb13t
- · Replies 2 ·
Does Fluorescent Powder in Tubes Absorb UV Light to Prevent Oxygen Reaction?
- Zeynaz
- · Replies 1 ·
Mass of the fuel consumed at the reactor each year?
- parazit
- · Replies 2 ·
Light Diffraction physics problem
- Tkdmaster
- · Replies 6 ·
Determine the angle of two rigid bodies after a collision
- shadi
- · Replies 5 ·
How Does Particle in a Box Relate to Quantum Mechanics?
- Zeynaz
- · Replies 7 ·
An electron is fired at a nonconducting infinite sheet
- Mauve
- · Replies 3 ·
What Makes Radiation Significant?
- Leo Liu
- · Replies 7 ·
Calculate the kinetic energy of two alpha particles
- emmadun
- · Replies 2 ·
Conservation of momentum and SHM
- erisedk
- · Replies 5 ·
Simple harmonic motion of a bar pivoted at one end
- Martin89
- · Replies 6 ·
Help with a Centripetal Force Question
- NamNodrog
- · Replies 8 ·
Bernoulli's Equation Pressure at Blockage
- quark002
- · Replies 2 ·
How does the missing + sign in the equation affect the trajectory of a particle?
- Hypervalent_Iodine
- · Replies 3 ·
Find the particle's charge in terms of Q.
- Gnall
- · Replies 23 ·
Theoretical vs measured electrical resistance: Percent error relation
- Eucliwood
- · Replies 9 ·
A theory question about gasses and pressure
- Zeynaz
- · Replies 1 ·
AQA physics paper question: Where is the potential zero near these charges?
- bonbon22
- · Replies 7 ·
How could I find the total electric field in this question?
- Gnall
- · Replies 5 ·
Calculating Linear Expansion with Specific Heat Capacity and Mass Density?
- Kara4566
- · Replies 1 ·