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.

Threads

Replies
2

Does heat of vaporization vary with boiling temperature?

  • franz32
  • · Replies 8 ·
Replies
8

How to Calculate Tension and Horizontal Force on a Human Forearm?

  • BillyCheung
  • · Replies 6 ·
Replies
6

Understanding Tension in a Simple Bridge System

  • BillyCheung
  • · Replies 3 ·
Replies
3

Determine the time it takes for the ball to reach the plane of the fence

  • ptomizzle
  • · Replies 2 ·
Replies
2

Surface integral of E field over cube faces using Gauss' law

  • cepheid
  • · Replies 9 ·
Replies
9

Solving a Pesky Conservation Problem: Apple + Arrow

  • tandoorichicken
  • · Replies 2 ·
Replies
2

Glass marble is dropped down an elevator shaft

  • tandoorichicken
  • · Replies 2 ·
Replies
2

Solving Rotation Physics: Find Net Force for Ball Rolling Down Ramp

  • Little Dump
  • · Replies 2 ·
Replies
2

Vertical Ball Movement: Calculating Time in Flight (Calculus Practice)

  • VikingStorm
  • · Replies 2 ·
Replies
2

Solving Pivoting Rod Angular Acceleration

  • Juntao
  • · Replies 4 ·
Replies
4

True or False on Simple harmonic motion

  • Security
  • · Replies 17 ·
Replies
17

How Can We Simplify Integration Using Trigonometric Identities?

  • BLUE_CHIP
  • · Replies 1 ·
Replies
1

What is the magnetic field at the center of a rotating charged disk?

  • discoverer02
  • · Replies 4 ·
Replies
4

Particle in a potential well Gre. 93

  • yxgao
  • · Replies 3 ·
Replies
3

Tension in cable for elevator accelerating upward at 3.0 m/s²

  • Aiasha
  • · Replies 16 ·
Replies
16

How Can Mass and Air Resistance Influence Real-Life Physics Applications?

  • physicsdude
  • · Replies 10 ·
Replies
10

Tension in the string and the normal force exerted by the wall

  • StephenPrivitera
  • · Replies 12 ·
Replies
12

Solving a Nitrogen Gas Release Problem

  • Brad_Ad23
  • · Replies 2 ·
Replies
2

Help Solve Breathing Homework Problem | Jet Nebulizer

  • celtchic
  • · Replies 2 ·
Replies
2

Extra credit math, i dont even know where to start

  • MasterKung
  • · Replies 6 ·
Replies
6

Can You Calculate the Maximum Distance in an Egg Toss Without Initial Velocity?

  • formulajoe
  • · Replies 13 ·
Replies
13

How Does Connecting Copper and Iron Rods Affect Voltage Distribution?

  • Physicsit
  • · Replies 7 ·
Replies
7

Calculating Force and Angular Momentum in Rolling Mechanics Experiment

  • powerball
  • · Replies 2 ·
Replies
2

Mass and time question using calculus

  • harpgirl
  • · Replies 8 ·
Replies
8

Why Do Dogs Pant and How Does Color Perception Work?

  • Security
  • · Replies 20 ·
Replies
20

Something i've been wondering about

  • fudge
  • · Replies 7 ·
Replies
7

Two questions on differential equations

  • fudge
  • · Replies 4 ·
Replies
4

I should know this, but i dont.

  • MasterKung
  • · Replies 2 ·
Replies
2

Spherical Capacitor: Solving Electric Field, Displacement Field & Capacitance

  • discoverer02
  • · Replies 2 ·
Replies
2

How Do You Calculate Distance at Different Speeds Using Integration?

  • Blade
  • · Replies 2 ·
Replies
2

How Do You Calculate Work and Kinetic Friction for Constant Velocity?

  • potential thinker
  • · Replies 6 ·
Replies
6

Finding different solutions for 893u - 2432v = 19

  • totoro
  • · Replies 5 ·
Replies
5

How Do You Parametrize y = x^2 for Physics Calculations?

  • philipc
  • · Replies 3 ·
Replies
3

Tension in cable supporting elevator accelerating upward at 3.0 m/s²

  • Aiasha
  • · Replies 2 ·
Replies
2

What is Jane and Cheetah's Speed Before Grabbing Tarzan?

  • tandoorichicken
  • · Replies 2 ·
Replies
2

Moment of inertia of wheel with hoop and spokes

  • sirfederation
  • · Replies 2 ·
Replies
2

Finding radio tower height from two angles of elevation 24 feet apart

  • StarkyDee
  • · Replies 6 ·
Replies
6

Calculating the Force Constant of a Spring

  • marshall4
  • · Replies 6 ·
Replies
6

Why does a washer tub turn more revolutions while slowing than while speeding up?

  • sirfederation
  • · Replies 1 ·
Replies
1

Gravitational Force Problem 15 9.197872041*10^-11m

  • mustang
  • · Replies 2 ·
Replies
2

Spring stretch with added mass and pendulum maximum speed

  • moonlit
  • · Replies 6 ·
Replies
6
Replies
4

How Can You Calculate the Initial Speed in an Inelastic Collision Problem?

  • formulajoe
  • · Replies 3 ·
Replies
3

How to Find Distance of 1 kg Object After Explosion in Projectile Problem

  • formulajoe
  • · Replies 3 ·
Replies
3
Replies
5

Finding the Length of a Path on a 3D Graph

  • david90
  • · Replies 1 ·
Replies
1

Kinetic Energy Problem - from GRE

  • yxgao
  • · Replies 2 ·
Replies
2

Why is My Calculation of Force on the Door Incorrect?

  • SEG9585
  • · Replies 2 ·
Replies
2

Are 1p and 2p coins of the same metal, do they weigh the same?

  • janm204
  • · Replies 2 ·
Replies
2

Calculating Deceleration and Force in Circular Motion

  • dphin
  • · Replies 10 ·
Replies
10

3real life applications of the Millikan Experiment or parallel plates.

  • Matthew
  • · Replies 4 ·
Replies
4

Collision is perfectly elastic?

  • dphin
  • · Replies 8 ·
Replies
8
Replies
7

Physics - Gravity Accelaration -

  • joeblack
  • · Replies 2 ·
Replies
2

Physics fields and chem combined question

  • thegame
  • · Replies 2 ·
Replies
2

Finding tire contact area, boat buoyancy, and object density

  • kamoey
  • · Replies 2 ·
Replies
2

Normal force on a car at the top of a circular hill

  • sophendo
  • · Replies 1 ·
Replies
1

Forces not in equilibrium at joints in hydrostatic problem

  • AngelofMusic
  • · Replies 2 ·
Replies
2

How long to fill a 7.2m pool with a 5/8 inch hose?

  • kashmirekat
  • · Replies 2 ·
Replies
2

Bisectors of Triangle ABC Concurrent at Incentre I

  • PiRsq
  • · Replies 2 ·
Replies
2

What does grade K-12 mean?

  • Monique
  • · Replies 5 ·
Replies
5

Blood transfusion pressure problem where did i go wrong?

  • mrbling
  • · Replies 2 ·
Replies
2
Replies
2

How Far Can a Man Climb a Ladder Before It Slides?

  • SoulkeepHL
  • · Replies 2 ·
Replies
2

Calculate Gravity Accelaration Where You Live

  • joeblack
  • · Replies 2 ·
Replies
2

Help with inclined planes, tension, and friction problems

  • xsrewop27x
  • · Replies 38 ·
2
Replies
38

What is the relationship between helium volume and exam questions?

  • Security
  • · Replies 15 ·
Replies
15

Calculate the final velocity of the cart

  • thegreatone09
  • · Replies 2 ·
Replies
2

Calculating Initial Charge of Identical Objects Using Coulomb's Law

  • Physicsit
  • · Replies 11 ·
Replies
11

Circular loop with capacitor and resistor in changing magnetic field

  • gnome
  • · Replies 4 ·
Replies
4

What is the net vertical force on an airplane with given parameters?

  • tonyp910
  • · Replies 2 ·
Replies
2

Force exerted on mirror by laser beam

  • cantdophysics
  • · Replies 2 ·
Replies
2

Optics - find thickness of glass

  • cantdophysics
  • · Replies 2 ·
Replies
2

How Do Kinetic Energy and Momentum Relate When Energy Levels are Zero?

  • steph01mcd
  • · Replies 2 ·
Replies
2

Problem with buyoancy and fluid stuff

  • Daniel
  • · Replies 3 ·
Replies
3

How deep was the Scorpion when its torpedo exploded?

  • ero
  • · Replies 4 ·
Replies
4

What is the acceleration due to gravity on the distant planet?

  • Physicsit
  • · Replies 3 ·
Replies
3
Replies
10

Work-energy problems: crate on ramp, jumping jacks, spring constant

  • Az_
  • · Replies 4 ·
Replies
4

Coulomb's Law and stationary proton

  • Cyto
  • · Replies 9 ·
Replies
9
Replies
8

Posting multiple homework problems for guidance

  • Security
  • · Replies 20 ·
Replies
20

Stick pivoted off-center: torque and axle force at vertical

  • rdn98
  • · Replies 11 ·
Replies
11

Max Hill Steepness for a Cyclist: Solving the Problem

  • ndwiseguy
  • · Replies 3 ·
Replies
3

What is the range of a projectile fired from a spring?

  • marshall4
  • · Replies 4 ·
Replies
4

Helicopter with lift force at an angle and air resistance

  • AshTHmcdlManiac
  • · Replies 3 ·
Replies
3

Helicopter lift force and three constant velocity/acceleration problems

  • AshTHmcdlManiac
  • · Replies 2 ·
Replies
2

Power of a point with unclear configuration of intersecting chords

  • wubie
  • · Replies 13 ·
Replies
13

What goes in the Vo or Vy variables in kinematics equations?

  • LeMans Audi
  • · Replies 2 ·
Replies
2

Spring + Friction system equation

  • Millenium
  • · Replies 2 ·
Replies
2

Various Laws of Motion, Energy, Momentum and Collision Problems

  • ScoutFCM
  • · Replies 7 ·
Replies
7

Finding velocity and angle for conical pendulum with spring scale

  • kaotic
  • · Replies 3 ·
Replies
3

Angular speed of dog on merry-go-round and mass of girl on swing

  • mustang
  • · Replies 2 ·
Replies
2

Calculating Horizontal Force on Ball in Loop-the-Loop Track

  • Little Dump
  • · Replies 4 ·
Replies
4

Ap physics rolling/slipping billiard ball

  • Schmoozer3348
  • · Replies 2 ·
Replies
2

How Does Viscosity Affect Water Flow Rate in a Draining Tank?

  • lovelylm1980
  • · Replies 3 ·
Replies
3

Disk and blockutter frustration

  • Juntao
  • · Replies 3 ·
Replies
3

How Do You Calculate the Magnetic Force on a Parabolic Wire in 3D?

  • discoverer02
  • · Replies 8 ·
Replies
8

Calculate the magnitude and direction of the electric field intensity

  • Inquiring_Mike
  • · Replies 6 ·
Replies
6