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Introductory Physics Homework Help Forum

Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.

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Draw a free body diagram of each object in centripetal acceleration

nc9261
Apr 7, 2013 · Replies 2 · Apr 7, 2013

Replies: 2

How to find final velocity with given slope and mass?

Sneakatone
Apr 6, 2013 · Replies 14 · Apr 7, 2013

Replies: 14

Solving Stats Problem with Physics: 3 Eggs & 5 Boxes

GoGoGadget
Apr 7, 2013 · Replies 3 · Apr 7, 2013

Replies: 3

Find the equivalent capacitance

mathnoobie
Apr 7, 2013 · Replies 13 · Apr 7, 2013

Replies: 13

Understanding the Minimum Magnetic Field Required to Lift a Wire Vertically

Bashyboy
Apr 7, 2013 · Replies 2 · Apr 7, 2013

Replies: 2

Energy - Cannon Ball and Conservation of Energy

mcnealymt
Apr 3, 2013 · Replies 6 · Apr 7, 2013

Replies: 6

Help drawing equivalent resistor diagrams.

mathnoobie
Apr 7, 2013 · Replies 2 · Apr 7, 2013

Replies: 2

Reassure Me: Linear Momentum Homework

Litcyb
Apr 6, 2013 · Replies 17 · Apr 7, 2013

Replies: 17

Does a ball bearing oscillating on a curved track have a constant time

mrcotton
Apr 6, 2013 · Replies 5 · Apr 7, 2013

Replies: 5

Struggeling with quantum mechanics

Plecto
Apr 4, 2013 · Replies 17 · Apr 7, 2013

Replies: 17

What is the Work Done by Friction in a Box Being Pushed by an External Force?

Legerity
Apr 7, 2013 · Replies 11 · Apr 7, 2013

Replies: 11

Help on problem for physics point charges

Captain cook
Apr 6, 2013 · Replies 3 · Apr 7, 2013

Replies: 3

Entropy change when converting water to steam

doombanana
Apr 7, 2013 · Replies 1 · Apr 7, 2013

Replies: 1

Finding the coefficient of lift of a propeller blade?

theBEAST
Apr 6, 2013 · Replies 6 · Apr 7, 2013

Replies: 6

What Is the Diameter of the Wire in the Interference Experiment?

pious&peevish
Apr 6, 2013 · Replies 10 · Apr 7, 2013

Replies: 10

Spherical ball rolling on a concave surface

Tanya Sharma
Apr 5, 2013 · Replies 17 · Apr 7, 2013

Replies: 17

How Do You Calculate Tension in a Hanging Mirror?

Arabell
Apr 7, 2013 · Replies 3 · Apr 7, 2013

Replies: 3

What Is the Linear Speed of a Disk on an Inclined Plane?

Jbreezy
Apr 6, 2013 · Replies 5 · Apr 7, 2013

Replies: 5

Parallel Plate Conductor Question

Benny851
Apr 5, 2013 · Replies 8 · Apr 7, 2013

Replies: 8

Calculating Mirror Mass Using Laser Force

Newbie12
Mar 30, 2013 · Replies 6 · Apr 7, 2013

Replies: 6

Calculating the distance the spring was compressed

Line6spider
Apr 6, 2013 · Replies 8 · Apr 7, 2013

Replies: 8

Calculate Torque of Eddy Current Brake for Rotating Disk with Magnetic Field

AJKing
Apr 7, 2013 · Replies 1 · Apr 7, 2013

Replies: 1

Thermodynamics: Piston and Cylinder

mdawg467
Apr 4, 2013 · Replies 13 · Apr 6, 2013

Replies: 13

Conversion units mystery. Am I wrong?

giraffeinaboat
Apr 6, 2013 · Replies 2 · Apr 6, 2013

Replies: 2

Finding angular speed & KE using moment of inertia?

rockchalk1312
Apr 6, 2013 · Replies 2 · Apr 6, 2013

Replies: 2

EMF in a loop; non-constant magnetic field

AJKing
Apr 6, 2013 · Replies 3 · Apr 6, 2013

Replies: 3

Finding Angles of Interacting Forces

gajohnson
Apr 6, 2013 · Replies 1 · Apr 6, 2013

Replies: 1

How to determine harmonic number

Nickod777
Apr 6, 2013 · Replies 4 · Apr 6, 2013

Replies: 4

Graphical analysis work problem

freshcoast
Apr 4, 2013 · Replies 11 · Apr 6, 2013

Replies: 11

How Hot Must the Air in a Balloon Be to Lift a Given Mass?

erok81
Feb 13, 2013 · Replies 7 · Apr 6, 2013

Replies: 7

What is the Magnetic Field Near a Straight Current-Carrying Conductor?

VortexisVoid
Apr 6, 2013 · Replies 1 · Apr 6, 2013

Replies: 1

Diffraction Grating - Resolving Power

Darth Frodo
Apr 5, 2013 · Replies 4 · Apr 6, 2013

Replies: 4

Angular Momentum: Solving Homework Confusion

Litcyb
Apr 6, 2013 · Replies 1 · Apr 6, 2013

Replies: 1

2 dimensional collision with momentum

Painguy
Apr 6, 2013 · Replies 1 · Apr 6, 2013

Replies: 1

A collision, help me double check this ?

Jbreezy
Apr 6, 2013 · Replies 2 · Apr 6, 2013

Replies: 2

How to calculate average power in this case?

NafeesAhmed
Apr 6, 2013 · Replies 3 · Apr 6, 2013

Replies: 3

Solving the Equation for a Simple LC Circuit

serverxeon
Apr 5, 2013 · Replies 7 · Apr 6, 2013

Replies: 7

Drawing Electric Fields: Positive & Negative Charges

physicsqanda
Apr 6, 2013 · Replies 3 · Apr 6, 2013

Replies: 3

Double cheking momentum problem

Jbreezy
Apr 6, 2013 · Replies 2 · Apr 6, 2013

Replies: 2

Question about diagram and rays

physicsqanda
Apr 6, 2013 · Replies 3 · Apr 6, 2013

Replies: 3

Entropy change in isochoric process

wowowo2006
Apr 6, 2013 · Replies 1 · Apr 6, 2013

Replies: 1

Velocity as a function of position problem (simple i think)

member 428835
Apr 6, 2013 · Replies 6 · Apr 6, 2013

Replies: 6

Efficiency and Power Calculation for a Moving Car

mouthwash
Apr 6, 2013 · Replies 5 · Apr 6, 2013

Replies: 5

Egg drop experiment with a twist

trgoostrey
Apr 5, 2013 · Replies 4 · Apr 6, 2013

Replies: 4

How can the collision of connected particles be analyzed in mechanics?

Taylor_1989
Apr 5, 2013 · Replies 7 · Apr 6, 2013

Replies: 7

Expected value for momentum and x, intro to quantum mechanics.

scottyavh
Apr 6, 2013 · Replies 1 · Apr 6, 2013

Replies: 1

I calculating gravitational acceleration.

GabbyOcean
Apr 5, 2013 · Replies 4 · Apr 6, 2013

Replies: 4

Vector Potential of Spinning Sphere

Shinobii
Apr 5, 2013 · Replies 3 · Apr 6, 2013

Replies: 3

Which equation is correct about the forces

captinkareem1
Apr 6, 2013 · Replies 2 · Apr 6, 2013

Replies: 2

How Fast is the Ball After a Perfectly Elastic Collision?

Bostonpancake0
Apr 6, 2013 · Replies 1 · Apr 6, 2013

Replies: 1

Periscope reflection, but it seems backwards

heatherro92
Apr 4, 2013 · Replies 7 · Apr 6, 2013

Replies: 7

How Do Electrons Focus When Emitted from a Cylinder?

Saitama
Apr 2, 2013 · Replies 27 · Apr 6, 2013

Replies: 27

Probability of a particle in a box in the first excited state.

kickingpaper
Apr 5, 2013 · Replies 3 · Apr 6, 2013

Replies: 3

RMS displacement of a diatomic atom

Erubus
Apr 4, 2013 · Replies 2 · Apr 6, 2013

Replies: 2

Calculating stress given torque

InterestedGuy
Apr 5, 2013 · Replies 3 · Apr 5, 2013

Replies: 3

Inner product space - minimization.

binbagsss
Apr 5, 2013 · Replies 1 · Apr 5, 2013

Replies: 1

Applying force to an object of equal mass, finding required force?

gerard.caleb
Apr 5, 2013 · Replies 1 · Apr 5, 2013

Replies: 1

Electrostatics-determining velocities

plutolover
Apr 4, 2013 · Replies 6 · Apr 5, 2013

Replies: 6

Magnetic Deflection of an Electron on Earth's Equator at 1000m Altitude

TitaniumX
Apr 5, 2013 · Replies 1 · Apr 5, 2013

Replies: 1

Train Velocity Model for Distance of 5280 ft

member 428835
Apr 5, 2013 · Replies 1 · Apr 5, 2013

Replies: 1

Can Vectors in a Box be Solved Without Given Coordinates?

EternityMech
Apr 5, 2013 · Replies 9 · Apr 5, 2013

Replies: 9

Find time taken by a pendulum to swing by 90degrees

vikvaryas
Apr 5, 2013 · Replies 4 · Apr 5, 2013

Replies: 4

Deriving Error Equations for Half-Life Calculations

dab353
Apr 4, 2013 · Replies 2 · Apr 5, 2013

Replies: 2

Relative Velocities: Engineering Mechanics Dynamics - Hibbeler

serverxeon
Apr 4, 2013 · Replies 1 · Apr 5, 2013

Replies: 1

HAT - Displacement of joint of the rods

exuberant.me
Mar 30, 2013 · Replies 18 · Apr 5, 2013

Replies: 18

Calculating Fluid Pressure in an L-Shaped Tank

wcase
Apr 5, 2013 · Replies 8 · Apr 5, 2013

Replies: 8

Is there a relationship between \( k_b \) and \( C_v \)?

oxman
Apr 4, 2013 · Replies 2 · Apr 5, 2013

Replies: 2

Force on a point from electric charges

rocapp
Apr 3, 2013 · Replies 12 · Apr 5, 2013

Replies: 12

Position, Velocity, Acceleration, and Distance?

Stanc
Apr 4, 2013 · Replies 3 · Apr 5, 2013

Replies: 3

How do I find energy lost? Something very simple is confusing me

x86
Apr 4, 2013 · Replies 4 · Apr 5, 2013

Replies: 4

Simple Harmonic motion and Doppler effect question

Xelb
Apr 4, 2013 · Replies 9 · Apr 5, 2013

Replies: 9

What Is the Average Force on a Parachutist's Feet When Landing Stiff-Legged?

Killic
Apr 4, 2013 · Replies 2 · Apr 5, 2013

Replies: 2

Electric field along the y-axis of a charged semicircle

dumbperson
Apr 5, 2013 · Replies 3 · Apr 5, 2013

Replies: 3

Find final velocities in the reference frame to the ground.

Sneakatone
Apr 3, 2013 · Replies 30 · Apr 5, 2013

2

Replies: 30

How Do You Calculate Electric Potential for Spherical Shells?

nchin
Apr 5, 2013 · Replies 27 · Apr 5, 2013

Replies: 27

How much energy per unit mass is needed

helpmymaths
Apr 3, 2013 · Replies 11 · Apr 5, 2013

Replies: 11

Solving 2D Collisions: Find the Velocity of Eight Ball After Impact

x86
Apr 5, 2013 · Replies 2 · Apr 5, 2013

Replies: 2

Find the vector and find the magnitude of the vector

Voltrical
Mar 12, 2013 · Replies 5 · Apr 5, 2013

Replies: 5

SHM question with pulley and springs

Sunil Simha
Apr 4, 2013 · Replies 19 · Apr 5, 2013

Replies: 19

Physics frame of reference, is this possible?

x86
Apr 4, 2013 · Replies 3 · Apr 5, 2013

Replies: 3

What Is the Speed of the Clown and Performer When They Reach the Launch Height?

Sneakatone
Apr 3, 2013 · Replies 42 · Apr 4, 2013

2

Replies: 42

How Do You Solve a Basic KVL Circuit Problem?

nchin
Apr 4, 2013 · Replies 3 · Apr 4, 2013

Replies: 3

Thermodynamics Problem involving an ideal gas Helium?

hbk69
Apr 3, 2013 · Replies 23 · Apr 4, 2013

Replies: 23

How Do You Calculate Electron Tunneling Probability Through a Barrier?

dinospamoni
Apr 4, 2013 · Replies 1 · Apr 4, 2013

Replies: 1

Confused on the power through a Capacitor formula help

nchin
Apr 4, 2013 · Replies 3 · Apr 4, 2013

Replies: 3

Find the dielectric constant of the medium?

pwn2d2
Apr 4, 2013 · Replies 1 · Apr 4, 2013

Replies: 1

Pulley System Problem with String Impulse (Atwood's Machine)

jmlibunao
Apr 4, 2013 · Replies 6 · Apr 4, 2013

Replies: 6

Is this half-life answer kosher?

henpen
Apr 4, 2013 · Replies 5 · Apr 4, 2013

Replies: 5

Approximating a Simple Harmonic motion

hms.tech
Apr 4, 2013 · Replies 5 · Apr 4, 2013

Replies: 5

Direction of friction in the circular motion of a car

sbhit2001
Apr 4, 2013 · Replies 6 · Apr 4, 2013

Replies: 6

Diffraction grating of laser light

Johnahh
Apr 4, 2013 · Replies 4 · Apr 4, 2013

Replies: 4

Quick Static Equilibrium Questions

pietastesgood
Apr 4, 2013 · Replies 7 · Apr 4, 2013

Replies: 7

Finding the Net Electric Field of Two Point Charges

Pruddy
Apr 3, 2013 · Replies 27 · Apr 4, 2013

Replies: 27

Calculating electric fields due to continuous charge distributions

al_famky
Mar 30, 2013 · Replies 2 · Apr 4, 2013

Replies: 2

Angular frequency and angular velocity in UCM and SHM

al_famky
Mar 26, 2013 · Replies 3 · Apr 4, 2013

Replies: 3

Conversion of enerygy really simple

whynot314
Apr 4, 2013 · Replies 2 · Apr 4, 2013

Replies: 2

What does finite volume charge density mean?

al_famky
Mar 30, 2013 · Replies 5 · Apr 4, 2013

Replies: 5

Solving Torque & Forces: Bicyclist w/ 71 kg Weight

ibrahim1996
Apr 4, 2013 · Replies 1 · Apr 4, 2013

Replies: 1

Frictionless ball in a rotating reference frame.

sbhit2001
Apr 4, 2013 · Replies 2 · Apr 4, 2013

Replies: 2

Moving Particle is Brought to Rest by a Resisting Force

jmlibunao
Apr 4, 2013 · Replies 5 · Apr 4, 2013

Replies: 5

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Intro Physics Homework Help

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