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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Electric Potential of a Proton Question
- blablasometin
- · Replies 2 ·
Efficiency of an inclined plane
- pfk123
- · Replies 1 ·
Relativistic acceleration with integration problem
- Gravitino22
- · Replies 7 ·
A question regarding work with friction
- physicskid72
- · Replies 5 ·
How Does AC Frequency Influence Power Dissipation in a Resistor?
- QueenFisher
- · Replies 1 ·
Force and Newtons law of motion
- pat666
- · Replies 7 ·
How Is Kinetic Energy Related to Cue Ball Motion in Pool?
- say_uri
- · Replies 6 ·
Adding 28lb northwest at 45° and 15lb north vector
- drkidd22
- · Replies 1 ·
Entropy Calculation for Small Systems
- Redsummers
- · Replies 4 ·
Multiple choice physics test from past paper
- TsAmE
- · Replies 7 ·
A question regarding power and hookes law
- physicskid72
- · Replies 1 ·
Coefficient of kinetic friction between each block
- xstetsonx
- · Replies 2 ·
Determine the amount of kinetic energy lost due to the collision
- ClintStibbard
- · Replies 2 ·
Spring cannon, initial velocity, and compression
- fischelr
- · Replies 7 ·
Simple Lens Diagram for a Camera
- ZedCar
- · Replies 3 ·
How Does Water Pressure Affect Piston Position in an Ideal Gas Cylinder?
- knowlewj01
- · Replies 2 ·
Eigenvalues and Normalised Eigenvectors
- captainjack2000
- · Replies 6 ·
Car Suspension Homework: Find Speed to Avoid Wild Bouncing
- nemixus
- · Replies 1 ·
Dust particle diffraction through a hole using Heisenberg uncertainty
- CJSGrailKnigh
- · Replies 5 ·
Volume of water discharged from a tank
- nemixus
- · Replies 1 ·
Analysis of Lorentz Force on Particle Motion
- veritaserum20
- · Replies 1 ·
[Circuit] Potential Difference question
- GlobalDuty
- · Replies 4 ·
How to Calculate Mass of a Block Using Force Equations?
- miktalmyers
- · Replies 2 ·
How Much Power Does a Sprinter Generate in a Race?
- tangibleLime
- · Replies 1 ·
Problem finding the direction of current (electricity)
- AXiMe
- · Replies 4 ·
Conical Pendulum Radius Calculation
- harkyb
- · Replies 7 ·
A person jumps on a merry go round, how much does the merry weigh?
- smhippe
- · Replies 1 ·
How Can the Cosmos Be Both 3 Degrees and Extremely Hot?
- saberjim
- · Replies 4 ·
Making a soda can roll with an internal spinning flywheel
- reesespieces2
- · Replies 1 ·
Interference with two speakers?
- TheTourist
- · Replies 1 ·
Time dilation for a spacecraft traveling to a star 522 light years away at 0.9999c
- zebra1707
- · Replies 22 ·
Solve Max Velocity Increase of 100kg Probe in Gravity Assist from Mars
- zebra1707
- · Replies 4 ·
Using right hand rule to find torque direction from force and position vectors
- spdowind
- · Replies 1 ·
Tarzan and Jane(collision in one dimension problem)
- gongshow29
- · Replies 6 ·
Particle sliding off a hemisphere: where does M enter?
- benf.stokes
- · Replies 17 ·
Egg drop from 3 meters with straws, tape and paper
- Midas.
- · Replies 1 ·
T: Lorentz Transformation for Length and Relativistic Mass
- kathykoo9
- · Replies 2 ·
Time dilation calculation with small velocities and square root approximation
- Raziel2701
- · Replies 1 ·
How Do Water Droplets Impact Limestone Floors in Terms of Force and Momentum?
- myworldisorange
- · Replies 5 ·
Find force (N) of atmosphere on area
- Calhoun295
- · Replies 2 ·
Simple true and false questions
- physicskid72
- · Replies 2 ·
What Determines How Far Sound Can Travel?
- kth11
- · Replies 1 ·
Finding angular frequency and wave number from transverse wave snapshot
- Jen C
- · Replies 6 ·
Potential difference between points in a series circuit with two resistors
- tmusgrove
- · Replies 4 ·
Cauchy Boundary Conditions on a Wave
- bon
- · Replies 6 ·
Simple Work Done by Force Problem
- tangibleLime
- · Replies 1 ·
What happens to the height of the orbit?
- bon
- · Replies 1 ·
Conduction of Heat and Radiation problem
- Lexxian
- · Replies 1 ·
How can a particle experiencing a force be solved using work and energy?
- tangibleLime
- · Replies 1 ·
Understanding Household Currents
- Gummibare610
- · Replies 2 ·
Damoed Oscillation in an RLC circuit
- Senrab
- · Replies 2 ·
Easy Perpendicularly-Oriented Polarizers
- jacksonpeeble
- · Replies 1 ·
Potential Difference Across an Inductor in an RLC circuit
- Senrab
- · Replies 1 ·
Converting light years to meters and calculating star luminosity
- faisal
- · Replies 10 ·
Mechanical device inside a soda can to roll 15m
- reesespieces2
- · Replies 17 ·
Tension During Swing of Pendulum
- x^2
- · Replies 4 ·
Electric field inside a sphere of charge density A/r
- Repetit
- · Replies 4 ·
What Temperature Gives Nitrogen Molecules an RMS Speed of 1.5 m/s?
- hover
- · Replies 2 ·
What Determines the Acceleration of a Charge in an Electric Field?
- GlobalDuty
- · Replies 2 ·
What is the velocity of the body
- nmegabyte
- · Replies 3 ·
Where Should the Third Charge Be Placed to Achieve Zero Net Electric Force?
- Gummibare610
- · Replies 3 ·
What Do Newton's Laws Say About the Forces on a Painter on a Leaning Ladder?
- mybrohshi5
- · Replies 4 ·
Spring cannon launching 0.8 kg ball 25 m at 45 degrees
- TexasBB12
- · Replies 11 ·
Physics of sound applied to instruments
- chem_is_lovex
- · Replies 9 ·
Proton distance in a uniform electric field after 0.5s
- matt72lsu
- · Replies 3 ·
Solving a Ramp Problem: Calculating Forces and Work Done on a Sliding Piano
- YuppittTales
- · Replies 1 ·
Calculating potential difference
- sallyishyper
- · Replies 3 ·
Balance Decay Equation: 60Co --> 27Ni + 0B-1
- ZedCar
- · Replies 2 ·
How Do You Calculate Oscillation Parameters for a Mass on a Spring?
- lemon
- · Replies 1 ·
How Do You Calculate the Wavelength in a Closed Pipe Resonance Problem?
- crosbykins
- · Replies 3 ·
Range of speeds of particle confined in box
- Linus Pauling
- · Replies 5 ·
Solving for Velocity of a Body with Fx=-6xN
- themanofosu
- · Replies 1 ·
Light Refracted through a Prism
- Yaaaldi
- · Replies 1 ·
Units of Square root of a quantity
- nilic1
- · Replies 3 ·
How Do You Calculate Velocity in Lorentz Transformations?
- Nuclear#1
- · Replies 3 ·
What is the maximum angular speed of a twisted disk?
- mybrohshi5
- · Replies 19 ·
How does a bicycle rider hear a car horn while moving away?
- kylepetten
- · Replies 3 ·
Rocket Launch-Horizontal and Vertical motion:
- for0008
- · Replies 1 ·
Calculating Change in Flux: A Challenge!
- jimbkob
- · Replies 5 ·
What is the best way to design a network of capacitors with these restrictions?
- LeakyFrog
- · Replies 1 ·
Computing Central Force Potential: Bound from |r| to Infinity
- mystraid
- · Replies 4 ·
Calculation on Romer's theory of the speed of light
- Gothy
- · Replies 1 ·
How Much Weight Can the Sign Hold Without Breaking the Cable?
- tangibleLime
- · Replies 4 ·
Storage of capacitors in series
- LeakyFrog
- · Replies 3 ·
Inclined plane moment of inertia
- pat666
- · Replies 12 ·
Speed of Point on Rim of 50.0 g Disk with 8.00 cm Diameter
- tangibleLime
- · Replies 2 ·
How to Calculate Moment of Inertia for Different Door Rotations?
- tangibleLime
- · Replies 3 ·
Moment of inertia of a rotating bar
- pat666
- · Replies 2 ·
Finding Optimal Elevation Angles for a Field Goal: A Kinematics Trig Problem
- GunnaSix
- · Replies 5 ·
Maximum speed for a vehicle to pace another at constant velocity
- charlievictor
- · Replies 1 ·
Eddy current losses - solid/laminated cores
- satchmo05
- · Replies 2 ·
Up, anti-up quark annihilation Feynman diagram
- Sonko
- · Replies 1 ·
Moment of inertia and kinetic energy of a rotating particle
- pat666
- · Replies 12 ·
Speed of 4.00 kg block before hitting floor using energy methods
- pat666
- · Replies 28 ·
Finding unknown resistance and EMF in a three-resistor circuit
- PhilCam
- · Replies 14 ·
Toy car flywheel energy and angular velocity
- EzaMoo
- · Replies 3 ·
How Do You Calculate Energy Delivered to an Inductor Over Time?
- sinned4789
- · Replies 1 ·
Tour Submarine: Deep View 66 Can Descend to What Depth?
- rijo664
- · Replies 3 ·
Electric field from exponential charge density using Gauss' law
- zSanityz
- · Replies 13 ·
Pressure of person on chair Question
- rijo664
- · Replies 7 ·