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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Sound intensity/Ear drum problem
- Zeus711
- · Replies 3 ·
How Does Gravity Affect the Velocity of a Block on a Spring?
- Yam
- · Replies 6 ·
Imperial 2015 Application Question
- XJS
- · Replies 9 ·
Finding the initial velocity and time period of a projectile
- Wisal
- · Replies 18 ·
Maximum and minimum values of a variable capacitor
- rlc
- · Replies 2 ·
Electric field of a semi circle ring
- hitemup
- · Replies 16 ·
How Long Does It Take for a Capacitor to Charge to 8V in an RC Circuit?
- rlc
- · Replies 2 ·
Newton's Second Law - Net Force and Constant Acceleration
- electronXguy419
- · Replies 6 ·
Forces; Two blocks connected by a pulley with friction
- TheClara
- · Replies 1 ·
Particle Model of Thermal Energy questions
- romantichero7
- · Replies 1 ·
Mechanics Particular Wheel Problem
- Marvin94
- · Replies 5 ·
Net Forces of 3 uneqaul charges of equilateral triangle
- Lena Carling
- · Replies 4 ·
Determine all of the Physical Chemistry Variables of the System
- Gwozdzilla
- · Replies 14 ·
Minimum X-ray energy for Bragg reflection with n=1 in cubic crystal
- nmsurobert
- · Replies 1 ·
Impact speed of an electron in a parallel plate capacitor
- ShilpaM
- · Replies 1 ·
What Are the Horizontal Forces Acting on a Child Pulling a Wagon?
- CaitlinCrow
- · Replies 3 ·
Kinematics Question -- A soccer ball bounces off a wall
- Dr. Octavius
- · Replies 3 ·
What is the force on a moving particle in a magnetic field?
- acdurbin953
- · Replies 5 ·
Calculating Power Loss in Transmission Cables
- Matt512
- · Replies 7 ·
Relationship of acceleration in two-pulley system
- jake jungle
- · Replies 11 ·
Work-Energy Theorem Algebraic Representation
- Chrismartin33
- · Replies 5 ·
How Does Charge Distribution Affect Electric Field Above an Infinite Plane?
- hitemup
- · Replies 10 ·
Find velocity using Force -time graph
- jake jungle
- · Replies 2 ·
Coefficient of kinetic friction for 30N force on 12kg box
- pebbles
- · Replies 14 ·
Electric Fields and Charges Fill in the blanks
- JeffAndonuts
- · Replies 4 ·
Which has more significant figures: 2000g or 2.00kg?
- Suraj M
- · Replies 6 ·
Calculating Chemical Shift: How do magnetic fields affect NMR frequencies?
- Lily Wright
- · Replies 1 ·
How Is Average Velocity Calculated in Circular Motion?
- Poetria
- · Replies 7 ·
Car speeding up from rest around a circular track
- postfan
- · Replies 15 ·
Refraction through an optical fiber
- SnowAnd38Below
- · Replies 3 ·
Derive the equation for kinetic energy
- Suraj M
- · Replies 2 ·
What is the tension in the rope DE?
- Suraj M
- · Replies 2 ·
RC bandpass filter with vocal frequency range
- Lucille
- · Replies 6 ·
RF coil tuning for 1.5 and 3.0 Tesla MRI systems
- Lucille
- · Replies 21 ·
Why do we take component of v1 along the string in Newton's laws homework?
- Faris Shajahan
- · Replies 4 ·
How Does Acceleration Vary with Distance in s²=at²+2bt+c?
- oreo
- · Replies 1 ·
How Do You Calculate Normal Modes in a Vertical Coupled Oscillator System?
- samjohnny
- · Replies 1 ·
Calculate Charge from Electric Field Diagram?
- P1nkButt3rflys
- · Replies 3 ·
Designing Structures on Mars: Factors to Consider for a Successful Mission
- psuedoben
- · Replies 1 ·
Acceleration and cylindrical coordinates
- abdo799
- · Replies 2 ·
Solving Velocity of a Box Off a Ramp
- goonking
- · Replies 14 ·
Minimum Force such that box m does not slide down
- p671
- · Replies 2 ·
What Is the Rotational Temperature of 31P14N in Interstellar Space?
- burns96
- · Replies 1 ·
Finding magnetic field from Helmholtz coil period vs current slope
- 8008jsmith
- · Replies 1 ·
Normal modes of continuous systems
- hobmarcus
- · Replies 1 ·
Center of earth Work problem (some calculus)
- Sammbuch
- · Replies 8 ·
Coulomb's law and two point charges question
- deeko1987
- · Replies 8 ·
Galileo's rolling balls, cliff throw speeds, and free fall distance
- lynaa
- · Replies 6 ·
How Do You Calculate the Rest Energy of a Ball?
- Westin
- · Replies 2 ·
Longest pole between floor and ceiling with friction
- minimario
- · Replies 4 ·
Does the spring's direction of acceleration affect the momentum of the system?
- Joe Armas
- · Replies 3 ·
Unsteady state heat transfer differential equation
- Mangoes
- · Replies 5 ·
Treating multiple objects as the same system
- x86
- · Replies 8 ·
Beer-Lambet Law and Quantum Yield
- Lily Wright
- · Replies 5 ·
Ropes/Pulleys with moving weights
- Feodalherren
- · Replies 3 ·
Finding the Time to Reach the Halfway Point with Proportional Acceleration
- einstein314
- · Replies 3 ·
Assigning cosine and sines for axes
- physlexic
- · Replies 4 ·
Coulomb's Law and Electrical Fields
- Yut
- · Replies 6 ·
How do I calculate the height this water rocket will rise?
- Sugarcrashed
- · Replies 3 ·
What is the velocity of cart B after the boy lands on it?
- x86
- · Replies 1 ·
Why does a dropped ball's velocity-time graph have a curved slope?
- goonking
- · Replies 8 ·
Does the coefficient of friction change with the angle?
- Astraithious
- · Replies 12 ·
Finding E Field at Point from non uniform charge density
- fmpak93
- · Replies 5 ·
Is My Calculation of Force and Acceleration Correct?
- goonking
- · Replies 21 ·
Assessing a measurement's precision
- physicsnerd26
- · Replies 18 ·
How Does the Choice of Reference Point Affect Calculations in Torque Problems?
- henry3369
- · Replies 14 ·
What is the maximum distance traveled by the block in a vertical spring system?
- Jediknight
- · Replies 36 ·
Finding frequencies from destructive interference between speakers
- Arnoldjavs3
- · Replies 9 ·
Projectile through two points with arbitrary wall position
- TimTimTim
- · Replies 7 ·
Momentum and net external force
- Joe Armas
- · Replies 7 ·
Rate of change in temperature. Another way to do this?
- navm1
- · Replies 2 ·
Energies of interaction between molecules
- burns96
- · Replies 1 ·
Calculating Relative and Absolute Error: How to Find f(r,h,m)
- Sang Jun Lee
- · Replies 3 ·
Find tension as a vector on point A and point B
- bkw2694
- · Replies 2 ·
Why does area under a velocity-time graph equal displacement?
- anqrypeach
- · Replies 1 ·
Question with acceleration vector
- goonking
- · Replies 9 ·
What is the temperature of equilibrium when mixing ice and vapor?
- Robin04
- · Replies 9 ·
Projectile motion- solve for initial velocity
- mbphysics
- · Replies 7 ·
How Do You Calculate Uncertainties in Physics Problems?
- xyz_a
- · Replies 3 ·
How Do You Calculate the Physics of a Horseshoe Pitch?
- Winglifter
- · Replies 4 ·
Efficiency Calculation for a Stirling Engine Cycle
- CivilSigma
- · Replies 3 ·
Find field intensity at center of toroid?
- D.B0004
- · Replies 4 ·
Young-Laplace equation for liquid between parallel plates
- MFAHH
- · Replies 5 ·
Fraction of F2 molecules in speed range 240-250 m/s at 500 K
- Lily Wright
- · Replies 3 ·
How to Solve Pendulum Forces in Component Form?
- JaySean
- · Replies 9 ·
Hooke's law vs. Elastic potential energy
- **Mariam**
- · Replies 1 ·
Calculating the Period of SHM for a Suspended Cubical Box
- 1bigman
- · Replies 1 ·
Tension in a vertically swung bucket of water
- Jimmy87
- · Replies 6 ·
Quadratic fit parameters for bouncing ball motion sensor data
- Valerie Prowse
- · Replies 7 ·
Find Maximum Power to Resistor R
- Gwozdzilla
- · Replies 17 ·
Circular motion: find velocity with angle, mass, and radius
- ecalop
- · Replies 1 ·
Finding angular velocity of homemade motor from battery specs
- spinflick
- · Replies 3 ·
Newtonian fluid mechanics: Navier-Stokes equation
- Feodalherren
- · Replies 3 ·
What is the Correct Free Body Diagram for a Pulley System?
- Goofball Randy
- · Replies 6 ·
Tension in string at lowest point when bob just completes one rotation
- Jimmy87
- · Replies 8 ·
Fluids Viscosity: Calculating with a Flat Plate Viscometer
- suspenc3
- · Replies 3 ·
Why use 0 degrees for one of two forces acting at an angle?
- Moose100
- · Replies 9 ·
Change in potential energy of proton between two point charges
- KayDe
- · Replies 3 ·
Finding wavelength from phase difference between two points on a string
- hobmarcus
- · Replies 4 ·