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

Solve MUONs Numerical Problem with Help from Experts - Free Consultation

  • shaiqbashir
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5

Chinese remainder theorem problem

  • Benny
  • · Replies 5 ·
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5

Checking Boolean Algebra Solutions

  • dagg3r
  • · Replies 1 ·
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1

R: How does a Moving-Coil Galvanometer Indicate Current Strength?

  • phyphysics
  • · Replies 3 ·
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3
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13

Calculate Ice Melting Time in Styrofoam Cooler | K = .030 W/mo C

  • pkossak
  • · Replies 4 ·
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4

Maximum acceleration of a Porsche on a concrete surface?

  • philo51
  • · Replies 4 ·
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4

Calculating Work in Terms of Mass and Initial/Final Velocities

  • marissa12
  • · Replies 8 ·
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8

Prove (x-1)/x < lnx < (x-1) using Mean Value Teorem

  • iNCREDiBLE
  • · Replies 2 ·
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2

Stopping 15000 kg Truck with Friction and Gravity

  • marissa12
  • · Replies 2 ·
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2

Solve Problem: Arrow Shot Horizontally Hitting Target 25m Away

  • mystry4
  • · Replies 2 ·
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2

How to find the equations of the axis of the ellipse

  • pbialos
  • · Replies 2 ·
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2

Rotational Collision: Mass, Radius & KE Lost

  • huskydc
  • · Replies 7 ·
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7

Weight at different elevations in a tall building

  • elissadi
  • · Replies 6 ·
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6

Calculating Water Output of a 2.0 hp Electric Motor

  • psingh
  • · Replies 6 ·
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6

Why Do I Perform Poorly on Exams Despite Doing Well During the Term?

  • rocketboy
  • · Replies 6 ·
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6

Ferris Wheel Height Function: Diameter, Location, and Time Analysis

  • yourmom98
  • · Replies 3 ·
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3

Kinetic Energy of Cardinal & Baseball: Momentum Ratio

  • philo51
  • · Replies 5 ·
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5

Finding and Verifying Saddle Points for f(x,y) = e^(1/x^2*y)

  • pbialos
  • · Replies 7 ·
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7
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7

How Can I Succeed in My Undergraduate Calculus of Variations Class?

  • Callisto
  • · Replies 4 ·
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4

Solve for three variables with only two variables?

  • Shay10825
  • · Replies 8 ·
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8

If light enters a new medium perpendicularly

  • michaelw
  • · Replies 5 ·
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5

Calculating Elongation of an Orange Spring

  • brayrbob
  • · Replies 2 ·
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2

How do i use mathmatical symbols

  • professor
  • · Replies 4 ·
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4

Proof of Combinatorial Problem: Summation from k=1 to n

  • Mithal
  • · Replies 2 ·
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2

I really need an answer-Derive trig identity

  • Dainy
  • · Replies 2 ·
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2

Maximizing Earnings with $100,000 Investment in Plans A & B

  • jetoso
  • · Replies 2 ·
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2

What is the paper's speed relative to the ground?

  • aliciaw0
  • · Replies 5 ·
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5

Solve Kinematics Fireman Question: 28.7m, 49.5°, 39.6m/s

  • pkossak
  • · Replies 4 ·
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4

Calc 2 Homework: Find Series Solutions to 2 Problems

  • gokugreene
  • · Replies 12 ·
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12

Calculating Change in Length of Rubber Tube

  • huskydc
  • · Replies 7 ·
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7

He atoms move faster than all of the Ne atoms

  • pkossak
  • · Replies 4 ·
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4

Does Increasing Coil Turns Decrease Magnetic Flux Density?

  • temujin
  • · Replies 2 ·
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2

Calculating the Planck Constant: A Helpful Guide for Physics Students

  • DaltonGR
  • · Replies 2 ·
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2

Calculating Probability of Division Manning Decrease

  • iNCREDiBLE
  • · Replies 2 ·
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2

Find an expression for the acceleration

  • aliciaw0
  • · Replies 7 ·
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7

The Tire's Velocity at the Embankment's Top: 2.8 m/s

  • huskydc
  • · Replies 2 ·
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2

Kinetic friction of crate being pulled

  • jp04
  • · Replies 2 ·
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2

Angle Calculation in Inelastic Collisions

  • hhh79bigo
  • · Replies 10 ·
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10

How Much Water Flows Through a 6mm Hole in a Tank Per Second?

  • badman
  • · Replies 5 ·
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5

Finding Density Constant for Part (c) of Question

  • WY
  • · Replies 2 ·
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2
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5

Rates of Change Sliding Ladder Application

  • Dirac
  • · Replies 14 ·
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14

Magnetic flux and direction of induced current

  • michaelw
  • · Replies 4 ·
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4

Calculating Force of Beam on Support at A

  • huskydc
  • · Replies 4 ·
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4

How Is Static Friction Affecting the Boy and the Crate's Movement?

  • marissa12
  • · Replies 2 ·
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2

How to Calculate Acceleration in a System with Two Blocks and a Pulley

  • huskydc
  • · Replies 2 ·
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2

Is This a Conservation of Angular Momentum Problem?

  • Kchu
  • · Replies 5 ·
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5

Heat Energy: 30,000kg Snow > 1mL Water

  • skrewd1
  • · Replies 4 ·
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4

Some Physic question on kinematics, mechanics that i couldn't solve

  • Wen
  • · Replies 19 ·
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19

Some conceptual questions about light confused >_<

  • michaelw
  • · Replies 7 ·
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7

Need help with a confounding projectile motion problem.

  • MisterNi
  • · Replies 6 ·
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6

Blood Transfusion: Calculating Height of Bag

  • ussrasu
  • · Replies 5 ·
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5

Understanding Determinants of a 3x3 Matrix: A Beginner's Guide

  • Spunky_Dunky
  • · Replies 7 ·
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7

What is the maximum horizontal force

  • pkossak
  • · Replies 11 ·
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11

Conservation of angular momentum in sport

  • lektor
  • · Replies 2 ·
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2

What Wavelength Is Expected from Scattered Gamma Rays at 60 Degrees?

  • shaiqbashir
  • · Replies 2 ·
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2

Need Help regarding some problems

  • PhysicsNoob88
  • · Replies 18 ·
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18

Force of recoil on machine gun

  • frozen7
  • · Replies 2 ·
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2

Projectile motion arrow question

  • Lalasushi
  • · Replies 2 ·
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2
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2

How Does Heat Transfer Affect Entropy Between the Sun and Earth?

  • pkossak
  • · Replies 3 ·
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3

Show a sequence of amounts are a geometric series

  • yourmom98
  • · Replies 4 ·
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4
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2

Epsilon-Delta Proof for f(x)=1/(1-||x||) Continuity and Unboundedness

  • pbialos
  • · Replies 2 ·
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2
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5

When will they pass each other>

  • rlmurra2
  • · Replies 2 ·
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2
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2

Calculating Action from a Resonant LC Circuit

  • shaiqbashir
  • · Replies 2 ·
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2

Is Integration the inverse of differentiation?

  • rampalli_aravind
  • · Replies 11 ·
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11

Proving Exactness of a Differential Form with Poincaré's Lemma

  • jeanf
  • · Replies 2 ·
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2

Solving a Problem: Find Mass of Box, Given Two Wire Support Beam Data

  • pkossak
  • · Replies 3 ·
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3

Help Needed for Physics Project for an Undergraduate Student

  • Rohin.T.Narayan
  • · Replies 3 ·
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3

Two questions involving linear independence

  • kant
  • · Replies 11 ·
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11

What is the speed of a train based on observed changes in frequency?

  • pkossak
  • · Replies 3 ·
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3

What Would Happen if Sun's Gravity Was Turned Off?

  • rlmurra2
  • · Replies 2 ·
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2

What is the tension in the cable car's cable?

  • marissa12
  • · Replies 3 ·
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3

Calculating Force Exerted by Water Pumped at a Given Rate and Velocity

  • hhh79bigo
  • · Replies 3 ·
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3

How Is Time a Variable in Physics?

  • Shanos
  • · Replies 3 ·
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3

How Does Changing Pipe Radius Affect Pressure in Laminar Flow?

  • ussrasu
  • · Replies 6 ·
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6

How Do You Solve This Multivariable Limit Problem?

  • Hessam
  • · Replies 2 ·
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2

Find X-Intercept of y=atan(b(x-c))+d in Radians

  • yourmom98
  • · Replies 12 ·
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12

Calculating Molarity of Sulfuric Acid Solution

  • ~angel~
  • · Replies 6 ·
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6

Some help with electrostatics, please

  • banda
  • · Replies 2 ·
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2

Thinking about the space shuttle

  • mystry4
  • · Replies 3 ·
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3

Calculating the Tension in a Tightrope as a Trapeze is Caught

  • aliciaw0
  • · Replies 7 ·
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7

Solving Rotational Kinetic Energy with Mass M2 Added

  • H_man
  • · Replies 4 ·
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4
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5
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6
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2

Force of Friction: Calculating Car's Acceleration

  • elissadi
  • · Replies 5 ·
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5

Density of standing waves in a cavity

  • asdf1
  • · Replies 3 ·
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3

Ideas for Main Project (Written Report)

  • Lord_of_WorldDK
  • · Replies 2 ·
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2

How Does Population Affect Supermarket Sales?

  • adeel
  • · Replies 2 ·
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2

How to Decode SEND+MORE=MONEY?

  • aricho
  • · Replies 20 ·
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20

Generator Design for 50Hz, 240V

  • brenton
  • · Replies 2 ·
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2

Explaining River Gradient & Velocity

  • Doc G
  • · Replies 4 ·
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4

Solving the Equation: (-y/x^2)dx+(1/x)dy=d(y/x)

  • asdf1
  • · Replies 7 ·
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7
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2