Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Vertical spring with one attached mass and one unattached
- Razvan
- · Replies 2 ·
Why Is Resultant Wave Energy Proportional to Amplitude Difference?
- somecelxis
- · Replies 7 ·
Escape velocity of an Earth-Moon system
- cragar
- · Replies 3 ·
What Are the Speeds of Two Cars Meeting on a Highway?
- ajay.05
- · Replies 4 ·
Beats- time taken for waves to be in phase again
- somecelxis
- · Replies 4 ·
Calculating average energy of a system with 3 energy levels
- thercias
- · Replies 2 ·
Find heat loss given metabolic rate in a closed system
- fishes
- · Replies 3 ·
Potential at all points due to uniformly charged infinite cylinder
- oddjobmj
- · Replies 1 ·
How Does Adding a Resistor Affect Power Dissipation in a Parallel Circuit?
- Alexander2357
- · Replies 9 ·
Finding Expected Lateral Displacement From a Risley Prism
- Pythia
- · Replies 1 ·
Find an electric field around a hollow insulating sphere.
- hockey
- · Replies 1 ·
Changing the distance between capacitor plates
- Feodalherren
- · Replies 4 ·
Find energy lost due to friction, and final speed of block.
- manrayboy
- · Replies 1 ·
A ring with charge Q and radius 'r'
- squelch
- · Replies 5 ·
Positive charge "Q" is distributed uniformly around a semicircle
- squelch
- · Replies 8 ·
Deceleration of Train to Avoid Collision
- egrr10
- · Replies 1 ·
A projectile kinematic in 2 d problem using baskeballs?
- chapstick42
- · Replies 1 ·
Thick spherical shell Question.
- twinpair
- · Replies 5 ·
Kinetic Friction and Hemispherical Dome
- engineer2b
- · Replies 1 ·
Velocity and height at each time interval
- mastermind1
- · Replies 3 ·
Value of theta of first minimum
- desmond iking
- · Replies 3 ·
Correct Distance of 28.856m between 2 Points at 350°C
- Karol
- · Replies 5 ·
Specific heat capacity of copper
- sunquick
- · Replies 3 ·
Finding coefficient of thermal expansion
- Junkwisch
- · Replies 1 ·
Parallel plate capacitor problem
- camel-man
- · Replies 10 ·
Why Are We Interested In Node Voltages?
- xatu
- · Replies 11 ·
How to compute for Pressure without the acceleration on the Force?
- nms03
- · Replies 4 ·
Computing Theoretical and Experimental Acceleration
- kukumaluboy
- · Replies 2 ·
Projectile Motion: Angle of Impact
- stripedcat
- · Replies 2 ·
Find velocity and acceleration (positive or negative)
- Kerrie yu
- · Replies 8 ·
Canoe Velocity Relative to River: 0.413m/s
- zippeh
- · Replies 4 ·
How high will the projectile be at 5 km downrange?
- jdawg
- · Replies 1 ·
Understanding the Ratio of Forces between Blocks in a Frictionless System
- The Wanderer
- · Replies 4 ·
Electrical potential inside a sphere using integration
- PANTS187
- · Replies 1 ·
Incline plane problem - acceleration, time, and velocity
- Schnitzel
- · Replies 1 ·
How Fast Should the Second Stone Be Thrown to Hit the Ground Simultaneously?
- Physicsnoob90
- · Replies 6 ·
Rotating a laser at Moon so that spot has v>c
- EnlightenedOne
- · Replies 3 ·
Finding acceleration on a position-time graph
- salmayoussef
- · Replies 6 ·
What Stresses Keep a Shear-Stressed Block in Equilibrium?
- Will Flannery
- · Replies 12 ·
Not sure why I can't use v=v0 + at on this problem.
- remcalister
- · Replies 3 ·
Sound waves and amplitudes Problem
- alingy1
- · Replies 2 ·
Position vs Time Lab: Modeling the Relationship for Motorized Cars
- MrPyromaniac
- · Replies 2 ·
What Does Derivation Mean in a General Relativity Context?
- bmb2009
- · Replies 3 ·
What is the Velocity of a Car at the End of the Initial 2.09-Second Interval?
- Physicsnoob90
- · Replies 14 ·
How much oxygen absorbing area does an insect have?
- salmayoussef
- · Replies 7 ·
How many liters of shot does Ben need to carry out his demonstration?
- mshiddensecret
- · Replies 1 ·
Velocity of a single-stage rocket
- B3NR4Y
- · Replies 10 ·
Determine Coefficient of Friction
- killaI9BI
- · Replies 12 ·
What is the Correct Electric Charge Force Diagram for a Single Charge?
- Kavorka
- · Replies 2 ·
Understanding Physics Symbols: Cos∠ and Sin∠
- Maddie1609
- · Replies 2 ·
Minimum kinetic energy of an Alpha particle confined to a nucleus
- Brianrofl
- · Replies 4 ·
Use dimensional analysis to derive Poiseuille's Law
- devon
- · Replies 12 ·
Two charges touching each other
- Rectifier
- · Replies 4 ·
Diffusion rate of oxygen through skin
- fishes
- · Replies 2 ·
Magnitude of resultant of three force as small as possible
- redtop2
- · Replies 1 ·
Hooke's Law- measurement of mass/weight
- thennathalie
- · Replies 10 ·
Divergence in cylindrical/spherical coordinates
- deedsy
- · Replies 1 ·
Thermal Elongation of Alumina: 0.00036
- Karol
- · Replies 4 ·
Help interpreting symbols of basic electric circuit
- string
- · Replies 2 ·
How to Calculate the Motion of a Dropped Fish in a Projectile Problem
- IronManTable
- · Replies 11 ·
Deceleration of a man falling off a cliff into snow
- salmayoussef
- · Replies 4 ·
Finding a velocity of an object moving down an inclined plane help
- physicshelpppp
- · Replies 1 ·
What Speed Does the Railway Carriage Achieve After an Inelastic Collision?
- physicshelpppp
- · Replies 9 ·
Charge Leakage in Suspended Spheres with Varying Approach Velocity
- DriggyBoy
- · Replies 2 ·
Solving for Velocity as a function of height (y) with quadratic drag
- Yosty22
- · Replies 2 ·
Need help for question on Friction
- Daisy
- · Replies 2 ·
Velocity Lorentz Transformation
- teaJ
- · Replies 2 ·
Fluid statics - two water tanks
- toothpaste666
- · Replies 6 ·
Calculating Convective Heat Loss for Unclothed Person
- swiftmatt
- · Replies 10 ·
Buoyant Force & Gravity Force find Fnet (Newtons Second Law)
- tmschmidt24
- · Replies 3 ·
How Does Breathing Affect Water Vaporization and Caloric Loss?
- swiftmatt
- · Replies 3 ·
How Does Mass Affect the Oscillation Frequency of a Spider's Web?
- toothpaste666
- · Replies 14 ·
Circuit source current question
- orangeincup
- · Replies 3 ·
Help Understanding Uncertainties
- Ali0086
- · Replies 5 ·
Red Fringe Count in Young's Double Slit Experiment
- somecelxis
- · Replies 7 ·
Spring stretched by weight, find spring constant
- SarahLynn2012
- · Replies 3 ·
Find the flux through the equilateral triangle with corners at
- apebeast
- · Replies 3 ·
Electric Field Tension In Wire Problem HELP
- NickPA
- · Replies 1 ·
Solving Gauss's Law Problem: Excess Electrons in Plastic Sphere
- A.J.710
- · Replies 1 ·
A simple uncertainty question about height.
- psstudent
- · Replies 3 ·
Modern Physics-Einstein's Postulates/Relativistic Velocity
- giraffe
- · Replies 6 ·
Elastic Collision 5: Acceleration at B & Magnitude Explained
- Karol
- · Replies 4 ·
Solve KVL: Find V1, V2 Using Voltage Divider Rule
- orangeincup
- · Replies 1 ·
Solved: Width of Slit with Monochromatic Light 550nm is 0.055mm
- somecelxis
- · Replies 4 ·
Maximum Voltage Across Inductor in Series RLC Circuit Occurs at Which Frequency?
- anand raj
- · Replies 5 ·
Help with calculating Speed using distance and time
- Daisy
- · Replies 1 ·
Physical Pendulum Formula Derivation
- Parto0o
- · Replies 1 ·
Calculating density of a perovskite structure, a question, phase diagr
- Junkwisch
- · Replies 5 ·
Understanding the math in physics
- benshields
- · Replies 3 ·
How to Solve Parallel Circuit Problems in Electronics
- camel-man
- · Replies 4 ·
Can you solve a series circuit problem with 3 resistors and a 24V battery?
- camel-man
- · Replies 4 ·
What is the Maximum Angular Velocity of a Reverse Three-Speed Transmission?
- orangeincup
- · Replies 8 ·
Analog to digital temperature sensor
- orangeincup
- · Replies 10 ·
Particle Angular Velocity Problem
- user3298
- · Replies 1 ·
Hard Rotational Kinetic energy question (Flywheel)
- orangeincup
- · Replies 4 ·
Ampere's Law and Conductor: Finding ∫B.dl for a Semicircle in the x-z Plane
- Tanya Sharma
- · Replies 37 ·
Is this a typo? Analog to digital sensor
- orangeincup
- · Replies 1 ·
Finding the linear density of charge on a cylinder
- davidbenari
- · Replies 4 ·
Proving the Velocity Formula: vf^2 = vi^2 + 2aΔd
- killaI9BI
- · Replies 12 ·
Electric Field Between Two Disks
- k8thegr8
- · Replies 3 ·