Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Calculating Jet Plane's Acceleration After Full Throttle
- Allura
- · Replies 4 ·
Solving Tension Force Problem in APB Juniors
- Otaku Love
- · Replies 1 ·
Calculating Initial Speed from 2D Kinematics Problem
- brushman
- · Replies 2 ·
Finding velocity from a position-time graph at t = 5 s
- Allura
- · Replies 6 ·
Red and green balls dropped from table with opposite initial velocities
- iam911
- · Replies 1 ·
Center of Gravity: Locate on Uniform Board 20cmx10cm
- holy_kamote
- · Replies 3 ·
Word problem for a bus travel and a boat accelerating
- jubbly
- · Replies 5 ·
Percent uncertainty in theta and sin theta
- GreenMan39
- · Replies 1 ·
Ball thrown upward from rising balloon hits ground after 34.5s
- jmatta
- · Replies 3 ·
Finding the angle of a vector with negative x and positive y components
- jpd5184
- · Replies 12 ·
Gravitational potential energy = kinetic energy question
- vf_one
- · Replies 4 ·
Head-to-tail vector addition and subtraction with protractor and ruler
- mz2011grad
- · Replies 3 ·
Particle with acceleration a = -0.05v² at different distances
- lonsalot
- · Replies 6 ·
Why does vector subtraction look like addition?
- Cudi1
- · Replies 3 ·
Golf putt displacement and hurricane vector problem
- toyotadude
- · Replies 6 ·
Rotational dynamics of a block in a cone
- Tomforideer
- · Replies 2 ·
Solving for tensions AB and BC using substitution method
- mstehman
- · Replies 4 ·
How do you integrate 2πxe^{-4x}?
- alicia.kostka
- · Replies 1 ·
Understanding Heat Capacity of Different States: Water, Ice, and Steam
- Kyoma
- · Replies 3 ·
How much does it cost to run a 371W device for 129 days at 0.13% efficiency?
- sooperdrave
- · Replies 12 ·
Finding the Components of a Vector in the Third Quadrant
- jpd5184
- · Replies 9 ·
What is the Resultant Force of Tensions in Two Fishing Lines?
- dan2xtermart
- · Replies 1 ·
How Do You Solve the Integral of (1-e^-x)^(1/2)?
- osy044
- · Replies 3 ·
How to Calculate When a Bowling Ball Will Begin to Roll Without Sliding
- w3390
- · Replies 32 ·
What is wrong with this equation ?
- ManishR
- · Replies 1 ·
How much visible light is emitted by a 100 W tungsten light bulb?
- fluidistic
- · Replies 4 ·
Why would voltage stay the same when a dielectric is introduced?
- okgo
- · Replies 2 ·
Late night sanity check (Average Acceleration)
- DrummingAtom
- · Replies 1 ·
Real life problem - pushing object up incline plane
- jacy_m
- · Replies 6 ·
What is the Force Due to Extension for a Particle on an Elastic String?
- osy044
- · Replies 2 ·
Airplane airspeed with 60 km/h headwind and tailwind
- MikeX47
- · Replies 1 ·
Pulley Connecting Mass 1 to Hanging Mass 2
- maximoanimo
- · Replies 2 ·
Can You Graph Stop and Go Traffic in Rush Hour?
- swatmedic05
- · Replies 1 ·
How Far Will a Cart Travel Up a Ramp at Different Angles?
- Tonik
- · Replies 3 ·
Calculate Percentage Error: Ball Down the Ramp Lab
- jubbly
- · Replies 1 ·
How Can I Calculate the Volume of a Celestial Body with a Given Diameter?
- pwats17
- · Replies 1 ·
Finding Initial Speed of an Object
- swatmedic05
- · Replies 1 ·
What is the power of a car traveling at 30. m/s with a force of 1000. N?
- Loppyfoot
- · Replies 1 ·
Block on inclined plane problem
- Cyoder
- · Replies 2 ·
What is the Maximum Speed and Travel Time for a Subway Train?
- Kside
- · Replies 1 ·
A circuit of four elements. Which are in series and which are in parallel?
- siylence
- · Replies 2 ·
Projectile A - > B , two different angles
- lax1113
- · Replies 1 ·
What Shape is the Distance vs. Time Graph for a Falling Ball?
- J.live
- · Replies 1 ·
Straight Line on Distance vs Time^2 Graphs
- J.live
- · Replies 2 ·
What is the acceleration of the block up the ramp?
- PTPM93
- · Replies 5 ·
Prove distance from origin is invariant under coordinate rotation
- uchicago2012
- · Replies 3 ·
Understanding Projectile Motion: Calculating Time and Velocity
- jsmith613
- · Replies 1 ·
What is the terminal speed and acceleration of spheres falling through liquid?
- furor celtica
- · Replies 8 ·
Consider the arrangement of two fixed point charges, equal in magnitude
- Physics1988
- · Replies 3 ·
How Do You Calculate the Acceleration of an Electron in Motion?
- delfam
- · Replies 5 ·
Quick Reference Frames Problem. Soon
- jollyrancher9
- · Replies 1 ·
Impulse from golf ball hit and force in car crash test
- yek_zzz
- · Replies 1 ·
How do you find the formula for momentum in physics class?
- mopar969
- · Replies 4 ·
What Is the Average Force Exerted by the Wall on the Tennis Ball During Contact?
- Null_
- · Replies 1 ·
Not sure on topic - relativity if I had to guess
- pat666
- · Replies 13 ·
RLC Resonance: Understanding VL and VC Magnitudes
- Terocamo
- · Replies 2 ·
Modeling a Triangular Wave Pulse on a Taut String
- Quincy
- · Replies 6 ·
How can I show that R and RL are equal in this Y/Delta circuit problem?
- gomezfx
- · Replies 4 ·
Solving a Multifluid Manometer Problem to Find P1
- fishingspree2
- · Replies 3 ·
Solved: Kinematics Problem: Boy Scout & Food Pack Speed
- Manthegun
- · Replies 5 ·
Finding acceleration given distance?
- talklikearobo
- · Replies 12 ·
E_o=\frac{1}{2}mv_1^2Solve Elastic Collision: $\frac{\triangle E}{E_o}$
- thereddevils
- · Replies 2 ·
How do you solve for the mass of a hanging object with two given forces?
- Whotto
- · Replies 6 ·
Electric field components from two negative charges on y-axis
- ninjarawr
- · Replies 1 ·
Two cars passing each other (constant velocity)
- praecox
- · Replies 3 ·
How Are Reaction Forces Directed at Points A and D in a Supported Beam?
- ana111790
- · Replies 1 ·
Optimal launch angle for projectile from a curved surface
- TedGramm
- · Replies 1 ·
Finding drop height h when ball falls 0.47h in final second
- mathphysicnb
- · Replies 1 ·
Gauss's Law for Electric Field Components in a Charged Sphere
- mattmannmf
- · Replies 1 ·
Finding contact forces between three blocks on a frictionless table
- mohabitar
- · Replies 5 ·
Intermediate dynamics problems
- jazzyfizzle
- · Replies 15 ·
Find the magnitude even though direction is correct?
- rfig08d
- · Replies 1 ·
How Does Charge Distribution Affect Electric Fields and Forces on the X-axis?
- btbam91
- · Replies 1 ·
Ball thrown at 45° just grazes a 4m fence 5m away
- silas sham
- · Replies 1 ·
Finding the change in length of humerous
- vf_one
- · Replies 2 ·
Energy of a Dipole in a Uniform E Field
- dunna
- · Replies 3 ·
Positrons magnitue and direction with velocities
- mudrashka
- · Replies 1 ·
How do you find the time for 1000 Hz sound to travel 3 meters?
- donkeycopter
- · Replies 3 ·
Solving Car-Truck Overtaking Problem
- seraphimhouse
- · Replies 2 ·
How can calculus be used to solve a snail kinematics problem?
- brushman
- · Replies 2 ·
Cylinder on accelerating surface with no slipping
- zorro
- · Replies 12 ·
How do you find the degree of displacement?
- hypoovenmitts
- · Replies 1 ·
Use Coulomb's Law to calculate the number of excess electrons
- dwach
- · Replies 3 ·
Determining the orbital radius of extrasolar planets
- aggieg
- · Replies 3 ·
Calculate thickness of organic layer on wire
- Billybong
- · Replies 3 ·
What should I include in a college physics lab report?
- Char. Limit
- · Replies 1 ·
Simple Parallel Circuit Problem
- gomezfx
- · Replies 5 ·
What Are the Unknowns in This Free Fall Ball Problem?
- uchicago2012
- · Replies 3 ·
Charged particle between two conducting plates
- yoghurt54
- · Replies 22 ·
Understand concepts of electricity and magnetism
- aMajor
- · Replies 1 ·
Calculating and Plotting ln World Population: 1900-1980
- mualbuq
- · Replies 1 ·
Why did Author Use Cosine/Sine for Periodic Sound Waves?
- jwxie
- · Replies 1 ·
Airplane speed relative to ground with wind velocity
- mohabitar
- · Replies 2 ·
Does initial velocity change distance fallen in 3 seconds?
- mogibb1
- · Replies 10 ·
Finding the radius based on time and velocit
- ogehsim
- · Replies 4 ·
Round Table Supported by 3 Legs
- Ckrueger11
- · Replies 3 ·
Kinematics problem(already have the answer, but i need an someone to explain it to me
- ihatecats2014
- · Replies 1 ·
Two space craft are flying towards a planet
- pat666
- · Replies 4 ·
Space shuttle average speed and velocity in circular orbit
- mandi182
- · Replies 10 ·
RLC circuit - total impedance,phasor analysis etc
- pat666
- · Replies 4 ·