Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Homogenous mixture and a heterogeneous mixture
  • courtrigrad
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2
Uncertainty of Time | Atomic Clocks & Pulsars
  • GingerBread27
  • · Replies 5 ·
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5
Addition of Vectors and displacement
  • BlackMamba
  • · Replies 20 ·
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20
How Do You Calculate Distance Using Trigonometry in Physics?
  • a_j
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2
Magnitude of Acceleration Question
  • Doug Desatnik
  • · Replies 9 ·
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9
How Do You Graph and Revolve Functions Using a Computer?
  • ermines
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7
I dont understand what uniform acceleration is?
  • faisal
  • · Replies 7 ·
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7
Questions about the projection operator
  • curious george
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2
Learn How to Solve Equations Involving Nautical Miles and Meters
  • BlackMamba
  • · Replies 6 ·
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6
Calculating Automobile/Truck Distance and Speed
  • Mathize
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2
Find Tank Wall Temp: Heat Conductivity & Loss Analysis
  • TSN79
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2
At what time will runner B catch up with runner A?
  • JohnQ
  • · Replies 9 ·
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9
Can anyone show me how to work this problem out?
  • phywhat
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5
What is the Direction of an Emu's Acceleration When Slowing Down?
  • shawonna23
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3
What is the mass of a 4.29 cm cube of gold?
  • Kdawg22
  • · Replies 3 ·
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3
Runner A & B Race: Find Out When & How Far!
  • phywhat
  • · Replies 2 ·
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2
Calculating the Number of Atoms in a 12 kg Cat
  • GingerBread27
  • · Replies 2 ·
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2
How to Dissect an Isosceles Triangle into 4 Triangles for a Square
  • gravenewworld
  • · Replies 2 ·
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2
Moles in a Cat: Calculating Atoms in 12 kg
  • GingerBread27
  • · Replies 7 ·
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7
Solving Uncertainty Problem with .7g Lateral Acceleration
  • purduegrad
  • · Replies 9 ·
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9
What is the acceleration of the motorcycle in this situation?
  • EaGlE
  • · Replies 14 ·
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14
Baseball player slide Friction problems
  • triplezero24
  • · Replies 2 ·
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2
Finding Magnitude of Forces A + B
  • BlackMamba
  • · Replies 18 ·
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18
Solve Percent Problem: Apples Bought & Sold, Can You Help?
  • Omid
  • · Replies 9 ·
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9
How Far Does the Bird Travel Before the Trains Collide?
  • olilee
  • · Replies 3 ·
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3
Flower Pot Falling Past a Window
  • quick
  • · Replies 10 ·
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10
Help with an acceleration graph problem.
  • FabioTTT
  • · Replies 4 ·
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4
Calculate Speed of House in Michigan Due to Earth's Rotation
  • discoron77
  • · Replies 6 ·
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6
How to figure out the amount of heat (joules) needed to melt 1g of ice?
  • wasteofo2
  • · Replies 5 ·
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5
What is the magnitude of the electric field inside the insulator
  • JamesL
  • · Replies 2 ·
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2
Solving a Geometry Problem: Inscribed Half Circle and Triangle Relationships
  • Anzas
  • · Replies 7 ·
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7
Interference and diffraction of light
  • chisai_tam
  • · Replies 12 ·
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12
Force and velocity homework problem
  • daem
  • · Replies 5 ·
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5
Track Plane: Find $\hat R_{BA}$ (2 SF)
  • EaGlE
  • · Replies 2 ·
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2
An arithmetic progression problem
  • Anzas
  • · Replies 6 ·
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6
Solving C and F in Formula: How to Find the Unknowns
  • RanCor
  • · Replies 2 ·
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2
Tough Semester Ahead: Seeking Advice on Achieving an 85% Average
  • decibel
  • · Replies 7 ·
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7
Hot Air Balloon Free Fall Question
  • COCoNuT
  • · Replies 5 ·
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5
Algebra Problem: Adding Water to 75% Pure Alcohol to Make 15% Mixture
  • Omid
  • · Replies 4 ·
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4
Arithmetic progression(alternate method)
  • needhelpperson
  • · Replies 3 ·
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3
Yet another electric feild problem
  • dink
  • · Replies 5 ·
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5
Help Solving Charge Calculation Problem
  • ACLerok
  • · Replies 4 ·
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4
Does an Air Bubble in a Leveling Hose Affect Accuracy?
  • suffian
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Mass spectometer and relativity
  • evelyncanarvon
  • · Replies 7 ·
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7
Calculating the Vertical Acceleration of a Skier
  • physicsss
  • · Replies 2 ·
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2
Help with instantaneous velocity
  • ramin86
  • · Replies 5 ·
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5
What is the value of the automobile acceleration?
  • jtagtp
  • · Replies 10 ·
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10
Foreign Language and Physics/Chemistry Majors:
  • Simfish
  • · Replies 7 ·
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7
Understanding Significant Figures: Tips and Practice Quiz for Tomorrow's Test
  • Imparcticle
  • · Replies 16 ·
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with this Acceleration Problem
  • GingerBread27
  • · Replies 5 ·
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5
HOw can an egg fall from a high placeto the ground without breaking?
  • no idea
  • · Replies 4 ·
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4
I have a couple of brain blocks.
  • falcon0311
  • · Replies 3 ·
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3
Police car's acceleration physics problem
  • physicsss
  • · Replies 11 ·
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11
Help with Subspace: Find U of R^2 Closed Under Mult.
  • gravenewworld
  • · Replies 5 ·
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5
Relativity and Michelson-Morley experiment
  • relativemuon
  • · Replies 7 ·
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7
How Does Orifice Diameter Affect Fluid Flow Rate?
  • ConceptuallyInept
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Estimated volume of a golfball?
  • motionman04
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3
What Are the Correct SI Units for the Gravitational Constant G?
  • ramin86
  • · Replies 3 ·
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3
Help: Physics Homework Problem
  • shawonna23
  • · Replies 4 ·
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4
Free Fall Problem: Calculating Projectile Motion from a Cliff Edge
  • shawonna23
  • · Replies 6 ·
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6
Good Books for Physics Level 1 Students
  • iamhumble
  • · Replies 7 ·
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7
Help Solve 6 Online Homework Problems
  • idon'tgetphysics
  • · Replies 3 ·
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3
Significant Figures problem help
  • rumaithya
  • · Replies 2 ·
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2
Electric Charges: Solving a Half Sphere Problem
  • SpatialVacancy
  • · Replies 7 ·
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7
Calculating Maximum Speed Attained by a Spaceship Traveling to the Moon
  • Whatupdoc
  • · Replies 16 ·
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16
Calculating the Diameter of an Oil Slick
  • physicsss
  • · Replies 6 ·
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6
Calculating Time for a Boat to Slow Down Using Friction and Kinematics
  • Parth Dave
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3
How Do Moment of Inertia and Angular Velocity Compare Two Rotating Bodies?
  • Gmaximus
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Vector Exercises: Solve for a & b
  • Electro
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4
How Do You Determine the Radius of a Sphere If Its Mass is Seven Times Another?
  • ramin86
  • · Replies 4 ·
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Model Rocket Physics Problem: Maximum Height & Speed Calculations
  • EaGlE
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4
Kinetic Friction of a released block
  • xcutexboax
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3
If excess hydrochloric acid reacts with 4.6g of barium nitrate
  • ussjt
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2
Find the x and y component of vector c
  • ios
  • · Replies 7 ·
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7
Calculating Cross-Country Ski Distance
  • ios
  • · Replies 2 ·
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2
Homogeneous linear system question
  • loli12
  • · Replies 3 ·
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3
Help Solve Rolling Mill Problem: Find W for Force Equal to Twice Weight
  • dibilo
  • · Replies 2 ·
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2
Optimizing Surface Area for Cornflakes Box Design
  • chemical
  • · Replies 8 ·
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8
Question about molecular structure (chemistry related)
  • Cod
  • · Replies 2 ·
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2
Solve Investment Problem: Avg 5% on $1800, $2000 at 6%?
  • Omid
  • · Replies 12 ·
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12
I don't understand this question
  • SpatialVacancy
  • · Replies 2 ·
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2
Calculating Magnetic Force on a Wire in Earth's Magnetic Field at 40 Degrees
  • Del
  • · Replies 2 ·
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2
Solve Springy Question on Incline with Mass and Acceleration
  • xcutexboax
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Calc Help: Solving Differential Equation y'' + y' - 6y=0 with e^(rt)
  • parwana
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2
Deriving V-E Relation for Uniformly Charged Rod at Radial Distance r > a"
  • SpatialVacancy
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Value of an angle will their vector sum have the same magnitude
  • ios
  • · Replies 2 ·
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2
What is the difference between reciprocal and inverse in mathematics?
  • singleton
  • · Replies 3 ·
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3
Electricity & Magnetism: Help With 2 Homework Problems
  • dink
  • · Replies 2 ·
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2
Solving a Pulley Problem: Expert Help for a 100lbs Block Suspended in Air
  • help_me
  • · Replies 2 ·
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2
Electric fields and electrostatic forces
  • InfinitiMike069
  • · Replies 3 ·
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3
Calculating Takeoff Speed for an Olympic Long Jumper
  • pinky2468
  • · Replies 6 ·
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6
Confused: Determining Net Electrostatic Force and Direction
  • aaross
  • · Replies 2 ·
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2
Solving for t in a Physics Problem for Students
  • ZeroCool
  • · Replies 4 ·
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4
What is incorrect about my vector component calculations?
  • iamhumble
  • · Replies 10 ·
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10
Interpreting Vector Directions: A=8 at 45°, B=8 at 180/225°
  • Skotster
  • · Replies 3 ·
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3
Question dealing with momentum?
  • teclo
  • · Replies 7 ·
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7
Rocket Free Fall Problem: Calculating Time, Altitude, and Velocity
  • elizabethg
  • · Replies 11 ·
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11
Catching a Crook: Solve the Problem in 1.5 Seconds!
  • epeake
  • · Replies 7 ·
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7
What is the correct direction for the explorer's displacement to return home?
  • Whatupdoc
  • · Replies 15 ·
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15
Point charges on square - find magnitude of force
  • pringless
  • · Replies 20 ·
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20