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.
Average force in totally inelastic collision
  • uk9999
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3
Average Velocity between time to time
  • Triple88a
  • · Replies 11 ·
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11
Solve Mechanics Problem: Man in Ditch, Force on Man at Depth h
  • quantum brain
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1
Vector Problem - Angle between two vectors
  • jaredm2012
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1
Easy problem, but no idea how to solve it?
  • Gramsci
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1
Thermal Equilibrium: Calculating Pressure of Helium Gas in 3.11L Container
  • Indy2424
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2
Hydrostatics/Equilibrium: An object hanging by a light cord in a bucket of water
  • LunarJK
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1
How deep is the lake? velocity physics
  • hachi_roku
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1
Calculating Electric Field Strength in a Thunderstorm
  • itryphysics
  • · Replies 22 ·
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22
Bullet and Block Circular Problem
  • matt-83
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1
Finding the position of an electric field.
  • jonyamikun
  • · Replies 6 ·
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6
Stars and electromagnetic waves/radiation
  • prime-factor
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2
Projectile motion at top of cliff with angle
  • aemaem0116
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1
Calculating Uncertainty in multiplication/division (Volume&Ration)
  • nut.the.dutch
  • · Replies 12 ·
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12
How Do You Calculate the Weight of Signal C in a Suspended Cable System?
  • jonnyboy
  • · Replies 1 ·
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1
The cross product and dot product of vectors
  • Xiience
  • · Replies 9 ·
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9
Pendulum Timer Question: Comparing the Speed of Weighted Pendulums
  • Engelwood
  • · Replies 5 ·
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5
Oscillator with equal amounts of kinetic and potential energy
  • Dwrigh08
  • · Replies 3 ·
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3
Is the Answer in Meters per Second or Millimeters per Second?
  • dcramps
  • · Replies 2 ·
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2
What Is the Correct Magnitude of F2?
  • g.uricchio
  • · Replies 1 ·
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1
Calculating Battery Internal Resistance: V=IR Method
  • accol
  • · Replies 1 ·
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1
Moving car hits a stationary car
  • physicsman2
  • · Replies 2 ·
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2
Physics kinematics question (constant acceleration)
  • TheDog
  • · Replies 3 ·
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3
Is the Electric Field Calculation for a Rectangle of Charges Correct?
  • itryphysics
  • · Replies 4 ·
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4
The Doppler Effect and Simple Harmonic Motion question
  • hey3796
  • · Replies 2 ·
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2
What are the pressure and volume components of enthalpy?
  • syang9
  • · Replies 1 ·
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1
Displacement of Thrown Ball: Solve in 15min
  • Derby4Life
  • · Replies 2 ·
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2
Launching a Small Ball: Targeting Rings & Floor
  • username111
  • · Replies 2 ·
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2
Solving Algebraically for T2: Q Lost = Q Gained
  • Soliloquy12
  • · Replies 4 ·
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4
Electric Circuit: Case I & II Solutions
  • livewire1717
  • · Replies 1 ·
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1
Finding the Net Force Exerted by Water (of certain depth) on A Dam
  • Beginner@Phys
  • · Replies 1 ·
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1
Is this correct? (spider web tension question)
  • phy_
  • · Replies 5 ·
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5
Calculating Forces on a Uniform Platform in Equilibrium: Physics Problem
  • key
  • · Replies 4 ·
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4
Fluid Dynamics: Using Bernoulli's equation and Volume Flow Rate
  • Beginner@Phys
  • · Replies 2 ·
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2
Kinematic Problem: Tangential Acceleration and Radius of Curvature at t=1
  • Dell
  • · Replies 1 ·
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1
What is the average time between collisions for conduction electrons in copper?
  • jromega3
  • · Replies 2 ·
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2
Solve Impulse Question on Bullet Acceleration & Force
  • acsin92
  • · Replies 2 ·
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2
Finding charges on an equilibrium position
  • -EquinoX-
  • · Replies 1 ·
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1
Does Electric Field Depend Solely on Internal Charges?
  • musicfairy
  • · Replies 1 ·
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1
Where Is the Net Electric Field Zero Between Two Fixed Charges?
  • AFRaven
  • · Replies 1 ·
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1
Equilibrium Help: Solving for Tangential Speed in a Rolling Wheel Problem
  • key
  • · Replies 1 ·
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1
Electric Field Zero: Find Point Along Y-Axis
  • itryphysics
  • · Replies 13 ·
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13
Help Finding the initial speed as a diver leaves a board.
  • DeltaIceman
  • · Replies 2 ·
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2
Free Body Diagram: True or False?
  • FAJISTE
  • · Replies 2 ·
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2
What are the dimensiosn of tank in meters
  • Makaroon
  • · Replies 1 ·
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1
Adding capacitance to an impedance
  • bengaltiger14
  • · Replies 11 ·
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11
Pressure inside a tank of heavy water
  • M4573R
  • · Replies 2 ·
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2
Calculating final speed using momentum
  • ilovedeathcab
  • · Replies 1 ·
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1
Electric field and electric force
  • -EquinoX-
  • · Replies 8 ·
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8
Where the electric field is zero
  • JJones_86
  • · Replies 3 ·
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3
What is the Electric Field at Point P in the Presence of Two Charges?
  • JJones_86
  • · Replies 3 ·
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3
Understanding Planetary Motion: Correcting a Common Misconception
  • mormreed
  • · Replies 2 ·
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2
Do Nodes in Open Tubes and Anti Nodes in Strings Denote Harmonics?
  • kyleul
  • · Replies 1 ·
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1
How to Calculate Flux Density at a Point Using a 3-A Current?
  • LandonV
  • · Replies 1 ·
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1
Electron Motion Near Nucleus: Calculating Period and Velocity
  • blueskadoo42
  • · Replies 2 ·
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2
Why is the linear speed at point M used in calculating EMF in a magnetic field?
  • nokia8650
  • · Replies 3 ·
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3
Can a Car Safely Turn on a 40-Degree Banked Road at 30 m/s?
  • dk2421
  • · Replies 1 ·
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Calculating Electric Potential at Sphere and Shell
  • jromega3
  • · Replies 1 ·
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1
Calculating Distance fluid will travel in small tube with Piston on other side
  • SodaBiscuit
  • · Replies 4 ·
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4
How Does Heat Addition Change the Temperature of an Ideal Gas?
  • keemosabi
  • · Replies 3 ·
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3
Net force exerted on the two-particle system
  • Demix500
  • · Replies 5 ·
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5
Simple harmonic motion of sliding dinner plate
  • jimbo71
  • · Replies 1 ·
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1
Motion of a system of particles
  • physics_geek
  • · Replies 13 ·
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13
Energy stored in a capacitor graph
  • nokia8650
  • · Replies 4 ·
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4
Calculating Electric Field at (2.00,0)
  • -EquinoX-
  • · Replies 6 ·
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6
Pls help me with my Resistivity Question in pHysics due tomorrow morning.
  • emjez15
  • · Replies 1 ·
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1
Finding the height of a building
  • moy13
  • · Replies 6 ·
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6
Question dealing with density and pressure
  • tophat22
  • · Replies 7 ·
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7
Diffraction Grating: Finding Wavelength with Given Angle and Slit Density
  • seanmcgowan
  • · Replies 2 ·
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2
Ap answer? for gravity question
  • vectordog
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2
How Long Does It Take a Pulse to Travel Across a Ravine When a Rope is Plucked?
  • dsptl
  • · Replies 6 ·
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6
Nearest Distance between 2 boats
  • zimbabwe
  • · Replies 3 ·
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3
How Do You Calculate Cable Tension for Static Equilibrium?
  • chrozer
  • · Replies 2 ·
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2
Vector Component Sum: Solving the Homework Statement
  • Bottomsouth
  • · Replies 1 ·
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1
What is the Correct Theta Angle for Vector Degrees Problem?
  • Bottomsouth
  • · Replies 7 ·
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7
Final Net Charge for +23.62µC & 12.82 x 10^{14} Electrons
  • Sinusoidal
  • · Replies 3 ·
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3
How Much Force Is Exerted on a Bullet When Fired from a Gun?
  • bob24
  • · Replies 3 ·
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3
Motion in One Dimension - Finding two separate changes in time
  • jaredm2012
  • · Replies 4 ·
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4
Solving Friction Problem: Accelerating Wounded Soldier Out of Line of Fire
  • bob24
  • · Replies 4 ·
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4
Electric Force Calc: 4µC, -3µC, 4µC at 10cm, 4cm,-2cm
  • redhot209
  • · Replies 1 ·
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1
Height of a rocket at a certain time
  • moy13
  • · Replies 2 ·
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2
Vector Components Homework: Find Vz & Length
  • FAJISTE
  • · Replies 2 ·
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2
Two wavelengths, find time between successive beats
  • phys62
  • · Replies 2 ·
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2
Help with simple electric cirquits
  • theneedtoknow
  • · Replies 1 ·
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1
Dimensions, Unit Operations Homework (True/False)
  • FAJISTE
  • · Replies 3 ·
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3
Uniform electric field in a triangular arrangement
  • larkinfan11
  • · Replies 4 ·
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4
Charge flow of grounded sphere?
  • yeahhyeahyeah
  • · Replies 2 ·
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2
What is the magnitude of the impulse
  • magma_saber
  • · Replies 2 ·
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2
Calculating effects of air resistance on a falling mass
  • Steph191290
  • · Replies 2 ·
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2
Helicopter Lifting off(Newtons Laws). Help please?
  • bob24
  • · Replies 3 ·
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3
Doppler effect measure speed in blood cells
  • hellokitty
  • · Replies 2 ·
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2
Help with gravitation and free-fall acceleration
  • cougarsoccer
  • · Replies 5 ·
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5
Calculating e/m Ratio: A Puzzling Problem
  • barcelonaboy
  • · Replies 2 ·
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2
Help with with finding the magnitude of a charge
  • dasblack
  • · Replies 2 ·
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2
Simple Harmonic Motion General Formula
  • Haths
  • · Replies 2 ·
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2
Physics 12 Journal help, please
  • LoriAnn
  • · Replies 1 ·
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1
Elliptical Orbit Question with no numbers
  • vasilicus
  • · Replies 9 ·
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9
Finding Speed and Volume Flow Rate in a Constricted Pipe
  • xray2golf
  • · Replies 6 ·
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6
How Have Large Vehicles Been Modified for Better Aerodynamics?
  • lego indy
  • · Replies 1 ·
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1
How Does Optics and Wave Interactions Affect Image Formation and Light Behavior?
  • befree9
  • · Replies 1 ·
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1