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.
Determine the maximum current discharged from a battery
  • roonaldo17
  • · Replies 6 ·
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6
How Are G and g Related in Gravity?
  • Turquoise
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1
How Do You Calculate the Force Exerted by Water on a Sled?
  • alevis
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1
Ratio of max height of a projectile to planet radius
  • yankans
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1
Momentum & Kinetic Energy problem
  • potato1
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2
Calculate Weight of 75.0kg Woman on Earth
  • Mathcaptor
  • · Replies 6 ·
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6
Coulomb's Law Can someone I don't understand how to do this.
  • ScottL
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2
Is Centripetal Force the Only Force in Space-Based Circular Motion?
  • shyboyswin
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1
Titanic and Iceberg. What forces take part in the crash?
  • ibramgaunt
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1
How much energy is used to operate the oven for 7 hours?
  • keemosabi
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8
Frictionless Peg Slide On Wedge
  • LadyBlade
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4
Tutorial: Half-Lives and Radioactive Decay
  • jacksonpeeble
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3
How do I calculate the average deceleration of a car?
  • hellothere.
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2
Calculate Wave Properties: Frequency, Wavelength, and Speed
  • shemer77
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3
Thermodynamics - Melting of Ice
  • TheBaker
  • · Replies 3 ·
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3
Maxwell Boltzmann Distribution Question
  • Crosshash
  • · Replies 7 ·
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7
How Long Does a Bicycle Lead a Car After a Traffic Light Turns Green?
  • jcharles513
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1
How Do You Determine Spring Compression in Harmonic Motion?
  • zbirdie
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1
Newton's Second Law: Calculating Net Force on a Wagon with a Child (28.5kg)
  • Mathcaptor
  • · Replies 1 ·
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1
What Is the Charge on Each Pith Ball?
  • bmandrade
  • · Replies 3 ·
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3
Uncertainties- am I doing them right?
  • Dynamite
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1
One-dimension collision question
  • physics_geek
  • · Replies 13 ·
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13
How Do You Convert Measurement Uncertainty When Changing Units?
  • Dynamite
  • · Replies 1 ·
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1
Astronomic gravitation problems
  • philadelphia
  • · Replies 2 ·
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2
How Do You Determine the Source Location of a Sound Wave?
  • Grapz
  • · Replies 7 ·
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7
Electric potential with charges
  • canadianballa
  • · Replies 3 ·
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3
Inelastic Collision with Spring
  • edud8
  • · Replies 4 ·
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4
Beginner Physics Kinematics/Motion do not have a physics brain
  • inevitable?
  • · Replies 21 ·
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21
Constant acceleration problem involving NASA exploration vehicle.
  • fuhgidabowdit
  • · Replies 2 ·
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2
Gravitational acceleration/tension?
  • Bigdane
  • · Replies 1 ·
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1
Vertical Circular Motion problem (Carnival)
  • 1517279
  • · Replies 9 ·
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9
How Much Does Gravity Affect Weight on Mercury?
  • Bigdane
  • · Replies 2 ·
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2
Honors Physics Momentum Problem
  • fantolay
  • · Replies 1 ·
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1
What Is the Maximum Force on a Rope Attached to a Car?
  • theshadow6
  • · Replies 6 ·
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6
Why is the velocity of a satellite in a circular orbit twice the orbital radius?
  • Maiia
  • · Replies 5 ·
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5
Law of conservation of kinetic energy?
  • Dynamite
  • · Replies 9 ·
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9
Sound traveling in water, compared to air - help please
  • Greywolfe1982
  • · Replies 4 ·
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4
Is a Vector Perpendicular to the Sum of Two Perpendicular Vectors?
  • sdoyle
  • · Replies 20 ·
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20
Physics 11 Help: Solving for Power Output of a Car Accelerating to 80 km/h
  • roxxyroxx
  • · Replies 6 ·
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6
Question on Rotational Dynamics (Just understanding something, have solutions)
  • Quantumpencil
  • · Replies 2 ·
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2
What Type of Energy is Associated with Object-Environment Interaction?
  • ne_patsfan12
  • · Replies 7 ·
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7
Physics Help: Solve a Sliding Child Problem
  • roxxyroxx
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3
What is the impulse exerted on objects A and B during their collision?
  • Joe Jacobs
  • · Replies 2 ·
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2
Find the tension of the system (picture included)
  • fern518
  • · Replies 8 ·
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8
Lenz Law: Which Capacitor Plate Becomes Positive?
  • starless.aeon
  • · Replies 2 ·
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2
Cart Explosion- Is Energy conserved?
  • Dynamite
  • · Replies 2 ·
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2
Calculating dB: Understanding the Addition of Sound Intensities
  • joe215
  • · Replies 2 ·
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2
Efficiency of Car Jack - Physics 11 Help
  • roxxyroxx
  • · Replies 1 ·
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1
Elastic Collision problem with atoms.
  • hellomister
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1
Pushing capacity of a human being
  • flfgw
  • · Replies 2 ·
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2
What is the coefficient of kinetic friction between the block and the incline?
  • alevis
  • · Replies 2 ·
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2
Show that the initial speed is vi = sqrt 2gL(l-cosθ).
  • alevis
  • · Replies 1 ·
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1
The Vector Nature of Newton's Second Law
  • Turquoise
  • · Replies 1 ·
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1
Simple Solenoid Problem Solution Using Ampere's Law
  • ABoul
  • · Replies 3 ·
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3
Electricity - polarization/grounding
  • Elbobo
  • · Replies 2 ·
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2
Total mass of galaxy, circular acceleration and gravity
  • Maiia
  • · Replies 2 ·
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2
Compute mass of black hole, gravitational and circular acceleration
  • Maiia
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2
Small oscillations of constrained particle
  • Math Jeans
  • · Replies 3 ·
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3
What Minimum Speed Must Jane Have to Swing Across the River?
  • alevis
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1
Calculate Min Initial Kinetic Energies for Javelin, Discus, Shot Throws
  • alevis
  • · Replies 1 ·
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1
Rebounding: Basketball Player Exerts 280lbs of Force on Floor
  • 09mcibrian
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1
Is Your Experimental Value Within the Accepted Range?
  • Greywolfe1982
  • · Replies 2 ·
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2
Angular displacement in radians problem
  • bikerboi92
  • · Replies 8 ·
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8
Scalar & Vector: Differences & Direction
  • harshinig
  • · Replies 2 ·
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2
How Can Vernie and George Swing Across the River Despite the Wind?
  • alevis
  • · Replies 1 ·
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1
Finding Electric Field at Point x Away from Origin
  • musicfairy
  • · Replies 3 ·
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3
Bernoulli's Equation of water tower
  • keemosabi
  • · Replies 2 ·
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2
Kinematics/Vectors Homework: Initial Velocity, Acceleration, Speed & Direction
  • bikerboi92
  • · Replies 3 ·
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3
What is the Mass Density of a Floating Cylinder in Water?
  • ch2kb0x
  • · Replies 8 ·
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8
How Much Does an Empty Lift Move When Entered by 8 Passengers?
  • Gregg
  • · Replies 16 ·
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16
What is the charge on each sphere in a force balancing problem?
  • The Motif
  • · Replies 20 ·
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20
How Does Torque Affect Angular Acceleration in Rotational Motion?
  • Swagger
  • · Replies 8 ·
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8
How far above the top of a fence?
  • noaster
  • · Replies 3 ·
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3
Hemisphere being pulled by a rope problem
  • brianws33
  • · Replies 1 ·
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1
F=ma calculation in vector format
  • rugapark
  • · Replies 3 ·
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3
Calculating Charge from 2D Electrical Force Problem
  • Elbobo
  • · Replies 7 ·
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7
Electric Potential and Kinetic Energy
  • jakey
  • · Replies 1 ·
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1
Science Fiction Movie and sound waves
  • ahrog
  • · Replies 5 ·
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5
Sir Isaac Newton contest solutions 2007
  • Uncle6
  • · Replies 4 ·
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4
Destructive Interference of Light Waves in Bubble Film (165 nm)
  • stickplot
  • · Replies 2 ·
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2
Find Area of flattened gold with limited info.
  • Kaleb
  • · Replies 2 ·
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2
What is the path on the pV diagram for an isobaric expansion from 2 m^3 to 5 m^3?
  • ApexStudent1
  • · Replies 1 ·
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1
Factor label method with rotational motion
  • wallace13
  • · Replies 1 ·
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1
Help with Gauss's Law Quick Quiz
  • jdefrancesco
  • · Replies 15 ·
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15
What Type of Charge is Generated by Touching a Door Handle?
  • stickplot
  • · Replies 2 ·
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2
How Does Batman's Jump Impact the Speed of a Getaway Boat?
  • wallace13
  • · Replies 3 ·
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3
Explaining Oscillatory Motion: Pendulums, Skateboards, and Grandfather Clocks
  • ahrog
  • · Replies 3 ·
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3
Voltage Analysis of Parallel RC Circuit with Series Components
  • henryparrot
  • · Replies 6 ·
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6
Solved: Physics 20-1 Energy - Mass on a Spring
  • physicznoob
  • · Replies 3 ·
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3
Balls and clay blob - Collision problems
  • nns91
  • · Replies 8 ·
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8
Harmonic movement of a spring question
  • transgalactic
  • · Replies 5 ·
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5
Can a Grocery Bag Hold 20kg of Groceries with 5 m/s2 Acceleration?
  • delfam
  • · Replies 10 ·
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10
Optimizing Thin Film Interference for Maximum Reflection
  • Sevenheartz
  • · Replies 8 ·
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8
Electric Fields potential of zero
  • nokia8650
  • · Replies 8 ·
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8
Light waves through grating. Min and Max measurements of wavelenghts in nm
  • Mugen112
  • · Replies 1 ·
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1
Momentum/Elastic Potential Energy
  • hellomister
  • · Replies 2 ·
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2
Work and energy and that sort of rot. :/
  • DDRchick
  • · Replies 2 ·
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2
Verify Answer- Porsche Power Question
  • bcjochim07
  • · Replies 4 ·
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4
Distance traveled correct?(not homework)
  • webslinger67
  • · Replies 2 ·
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2
Momentum of Bird on Swing after takeoff
  • itsjustwhoiam
  • · Replies 5 ·
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5