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.
Finding the Point at Which Electric Field from Two Charges Adds to Zero
  • phrygian
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What values of a and b satisfy the following wave equation?
  • s_gunn
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4
What is the Correct Way to Calculate Tension Between Blocks?
  • TG3
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6
How Far Does a Skier Jump at 15° Launch and 50° Slope?
  • Jbright1406
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Finding tention of rope, accelerating box.
  • guipenguin
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Calculating the Force on an Electric Dipole
  • jumbogala
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Calculating Maximum Speed for Circular Motion with Tension Limit
  • TG3
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Stopping a Muon: Solving the Equations
  • lauriecherie
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Unit Vectors Homework: Write Vector Expression for Golf Ball Position
  • Jbright1406
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2
What is the direction and speed of the final leg of the off-roader's trip?
  • nick901304
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1
Capacitance (farads) am I doing this right?
  • phys-lexic
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5
How Do You Calculate the Y Component of Velocity for an Arrow Shot at an Angle?
  • disque
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Help with Friction: Find Average Force
  • sliced cheese
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8
Investigating Particle's Acceleration from Position-Time Graph
  • lauriecherie
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Electric field inside a charged insulator
  • Oblivion77
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3
Effort-Saving Angle for Pulling Sled on Slope: Challenging Physics Homework
  • jgens
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Estimate the electric flux through the sphere
  • -EquinoX-
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2
Velocity Problem #2: Solve for Distance Traveled
  • lauriecherie
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3
What Is the Maximum Speed a Car Can Turn Without Skidding?
  • Trentonx
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2
Horizontal Distance Between Log & Bridge | Homework Statement
  • noaamari
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5
Velocity/acceleration/time to stop
  • lauriecherie
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4
What is the acceleration of two blocks connected with friction?
  • mrnastytime
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7
Navigating Physics I Lab Reports: Principal Results & Sources of Uncertainty
  • Norngpinky
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2
Angular Displacement and Velocity
  • Bigdane
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1
Elevator Questions: Describe 2 Forces
  • Jordash
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3
Theoretical value of a simple pendulum in motion
  • S00_SUNNiE
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2
How to Calculate Car Acceleration from Power and Speed?
  • g.uricchio
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8
Temperature scale: When will Celsius and Faranheit scales agree with each other?
  • FountainDew
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Object distance and magnifiation
  • 996gt2
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5
How Much Charge Do Repelling Styrofoam Balls Carry?
  • MightyMan11
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1
Transformer efficiency/primary current (help )
  • wakefreak90
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1
Understanding the Radial Field Generated by an Infinite Line of Charge
  • Seraph404
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1
How do momentum and center of mass play a role in solving a boat problem?
  • haydn
  • · Replies 11 ·
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11
How Do You Solve a Damped Harmonic Oscillator Differential Equation?
  • razorfever
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1
My teacher told me he calls this a baseball question why?
  • Koskesh
  • · Replies 10 ·
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10
Calculate the % fan shaft is out of balance
  • thewall
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2
Can a 10x Bigger Fly Still Fly with the Same Wing Surface? | Homework Solution"
  • Ayr4
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8
Anyone know where I can get previous years' AP Physics C exams?
  • HardBoiled88
  • · Replies 111 ·
4
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Metal and wood common temperature for neutral feel
  • Tricause
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4
Tension on a rope-no idea how to even start.
  • xXOfNiRXx
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Train Moving pulling two boxcars
  • Jordash
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2
How to get the force by Block A?
  • zerogoal
  • · Replies 12 ·
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12
Two blocks on a frictionless horizontal surface connected by a massless string
  • physics120
  • · Replies 6 ·
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6
How many of each type folders I purchased?
  • ImBadAtMath
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3
Which Metal Is Best for a Sensitive Light Meter Cathode?
  • stickplot
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2
Volume of a Pyramid: 474 ft & 11.0 Acres
  • r.anthony
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Displacement and Height Calculations with Velocity
  • sugar1
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Angle for furthest travel distance of an object (help needed, no JK)
  • Newton V
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4
Angle of Refraction for Red & Blue Light
  • ahrog
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2
Dimension Analysis Homework: Buckingham Theorem
  • dirk_mec1
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4
Young's Double-Slit Experiment
  • applesnjanono
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How Do You Calculate the Correct Drop Heights for Crash Helmet Testing?
  • Mewhew
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Two spheres, solve for electric field strength
  • axgalloway
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Lissajous figures circle problem
  • negat1ve
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How to Find the Amplitude in SHM with Only K and Mass?
  • swede5670
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Identifying the Odd Resistor: How Many Measurements Are Needed with an Ohmmeter?
  • fshiznit
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Well-lubricated bicycle wheel problem
  • tatertot560
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Calculating Force of 5 MicroC Point Charge at (0, 0, 5) | Step-by-Step Guide
  • Obama_US
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Venturi Metter - Conceptual Question
  • FutureEnginr
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Magnification for concave mirror
  • jaejoon89
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1
Lenses/Images - Find final image
  • maniacp08
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3 Point Charge Coulomb's Law problem
  • Kastner86
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How Long Does a Plane Have to Escape After Tossing a Bomb Upward?
  • afg_91320
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Speaker hanging from the ceiling
  • peacemaster
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Two forces, two angles; Net force = ?
  • MaximaMan
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Relative speed and Time dilation
  • stellaman
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Different ways to calculate force, GPE
  • physicsman7
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4
Spinning rod dropping on a pivot
  • mjolnir80
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Frictional forces between ropes
  • tcd89
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What is the Charge of Two Suspended Pith Balls at Equilibrium?
  • bnwchbammer
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Electric field and speed - find acceleration.
  • Mommy2KAR420
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2
Forces & Tension Homework: Tug of War & Moon's Orbit
  • vivekfan
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Bowling Ball Thrown off Building-Check my work/solutions pls.
  • afg_91320
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Finding the period of oscillation of a u-tube w/ water (almost solved)?
  • jaron_denson
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How can circuit analysis questions be simplified and solved using KCL and KVL?
  • tim51
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5
Two Radio Transmitters, Interference, and Waves
  • Phoenixtears
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Solving Wave Propagation Dilemma: Length Increase of 10%
  • dimpledur
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Does Zero Electric Potential Necessarily Mean Zero Electric Field?
  • pinkerpikachu
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How Does Inserting a Dielectric Affect Capacitor Voltage?
  • rcrx
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Projectile motion of arrow shot at 45 degree angle
  • KFC
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3
Calculate Cost of Gold on Commemorative Quarter-Dollar
  • r.anthony
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How Fast Will the Flower Pot Hit the Ground?
  • tomboi03
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Understanding Electric Field Lines: Curving and Splitting Nodes
  • jcpwn2004
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Solve Physics Problem: Turtle & Rabbit Race Over 1 km
  • XodoX
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Calculating Electric Flux Through a Cube with a Non-Uniform Electric Field
  • Oblivion77
  • · Replies 7 ·
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What is the diffrence and similarties
  • Maroc
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Elastic Potential Energy and spring
  • wallace13
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What is the mirror's focal length?
  • jaejoon89
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How Can Range be Increased for a 15-Degree Soccer Ball Projectile?
  • afg_91320
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How Do You Calculate Moments with Levers?
  • KINmajor
  • · Replies 8 ·
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Bubble Hydrodynamics: Find Numerical Solution to Air Bubble at 20m Depth
  • Sajmon
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Is this question dealing with law of conservation of momentum?
  • raek
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Jumping Lab Question ( Kinematics )
  • limework
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Calculate X-Component of Electric Field at Origin | Integral Homework Help
  • yeahhyeahyeah
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Hollow sphere rolling up a ramp
  • mjolnir80
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Electric Dipole Moment Vector Calculation
  • lacar213
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How Much Lateral Force Does a 70,000 lbs Truck Exert When Braking?
  • SIGNMAN
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Why Does Energy Dissipate When a Tug's Cable Breaks?
  • damienr
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Question about vectors, velocity, time and distance?
  • brandon d
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Why is steam hotter than boiling water?
  • toqp
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