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

Motion problem for constant acceleration of rabbit

  • chroncile
  • · Replies 5 ·
Replies
5

Calculating the Fourth Mass: A Rope and Four Masses

  • Dekoy
  • · Replies 2 ·
Replies
2

Finding angle in vector component equations

  • jaytm2291
  • · Replies 3 ·
Replies
3

Given mass, distance, and time, calculate power

  • MathMajor
  • · Replies 4 ·
Replies
4

Speed difference between horizontal and downward throws from a building

  • J.live
  • · Replies 23 ·
Replies
23

Speed for Remaining Time and Distance

  • MysticDude
  • · Replies 1 ·
Replies
1

A high diver jumping off a board (basic force problem)

  • AsuraSky
  • · Replies 2 ·
Replies
2

What Angles Allow a Golf Ball to Land 85 Meters Away?

  • physics_noob2
  • · Replies 1 ·
Replies
1

Find the acceleration vector of the mass

  • XwakeriderX
  • · Replies 1 ·
Replies
1
Replies
1

2 Two-dimensional motion problems

  • MJay82
  • · Replies 3 ·
Replies
3

Thermodynaics, solving for minimum power to heat water

  • copitlory8
  • · Replies 22 ·
Replies
22

Finding coefficient of friction given slope

  • Carriebun
  • · Replies 3 ·
Replies
3
Replies
1

Finding lunar gravity from golf ball distances on Earth and moon

  • lewenberg
  • · Replies 1 ·
Replies
1

What angle should the ladder be set up at to prevent slipping?

  • TobyDarkeness
  • · Replies 27 ·
Replies
27

Speed at t = 1.0 ms in SHM with 4.5 ms period

  • HZXAHNLfzjSr
  • · Replies 3 ·
Replies
3
Replies
1

How Do You Determine the Rise in Temperature of a Rock Falling into Water?

  • copitlory8
  • · Replies 11 ·
Replies
11

What Does the Constant Quantity x(dy/dt) - y(dx/dt) Represent in 2D SHM?

  • NeedPhysHelp8
  • · Replies 9 ·
Replies
9
Replies
1

Heat Q flows spontaneously from a reservoir at

  • copitlory8
  • · Replies 2 ·
Replies
2

Two insulated neon tanks mixing through a valve

  • copitlory8
  • · Replies 10 ·
Replies
10

Question regarding optics(prism)

  • shakeysg
  • · Replies 4 ·
Replies
4

Finding optimal angle and speed for a 90m javelin throw

  • Skipe_
  • · Replies 3 ·
Replies
3

Minimum force to keep 2.172 kg block from sliding down 5.753 kg block

  • cas85
  • · Replies 1 ·
Replies
1

Equations of Motion: Car Travels 60m/s for 10s

  • failwhale
  • · Replies 2 ·
Replies
2

Collisions problem completed - is it correct?

  • Hemingway
  • · Replies 2 ·
Replies
2

Finding True Weight with False Balance

  • zorro
  • · Replies 4 ·
Replies
4

Simple Motion Along a Straight Line Problem

  • MysticDude
  • · Replies 5 ·
Replies
5

One Dimensional Kinematics Problem

  • MozAngeles
  • · Replies 2 ·
Replies
2

Why is displacement less than velocity in free fall?

  • zarmewa
  • · Replies 15 ·
Replies
15

Newtons Second Law: Finding net forces

  • battlebball
  • · Replies 4 ·
Replies
4

How Much Work Does the Human Heart Perform in a Day?

  • Ogakor
  • · Replies 1 ·
Replies
1
Replies
2

Do Lab Report Graphs Need to Include the Origin Point?

  • chroncile
  • · Replies 4 ·
Replies
4

Spring compression in a taptap loaded with people and animals

  • MozAngeles
  • · Replies 2 ·
Replies
2

Radius of a projectile at the top of its path.

  • CornMuffin
  • · Replies 1 ·
Replies
1

Direction of displacement vector

  • dlthompson81
  • · Replies 2 ·
Replies
2
Replies
3

When do i use these kinematic formulas (constant-acceleration)

  • XwakeriderX
  • · Replies 3 ·
Replies
3

Solve Mechanics Homework: Driving Force & Tow Bar Tension

  • Doubell
  • · Replies 1 ·
Replies
1

RELATIVE MOTION wooden boxcar, sniper, bullets oh my

  • auk411
  • · Replies 1 ·
Replies
1

Electrical engineering circuit analysis

  • circuit_boy
  • · Replies 4 ·
Replies
4

Force on a Particle: Find Direction of Movement from Rest

  • uchicago2012
  • · Replies 5 ·
Replies
5

Velocity of 10 kg mass after 3 s with force 20i + 30j N

  • vande060
  • · Replies 4 ·
Replies
4

How to Apply Gauss's Law for Symmetrical Electric Objects?

  • intervoxel
  • · Replies 1 ·
Replies
1

What Are the Velocity and Acceleration of a Particle at t = 5.0 s?

  • P-Illiterate
  • · Replies 2 ·
Replies
2

Two blocks on a double incline plane

  • XwakeriderX
  • · Replies 2 ·
Replies
2

Proving Magnitude of Position Vector for Centre of Mass

  • metgt4
  • · Replies 1 ·
Replies
1

Ranking static friction forces on three boxes with different applied forces

  • MozAngeles
  • · Replies 4 ·
Replies
4

Vector jerk is the 3 derivative?

  • XwakeriderX
  • · Replies 8 ·
Replies
8

Electric fields and Gauss's Law

  • pitrone18
  • · Replies 1 ·
Replies
1
Replies
1

Absolute uncertainty in R to the power of negative two

  • gcsm
  • · Replies 4 ·
Replies
4

Instantaneous Velocity Car Problem

  • mopar969
  • · Replies 7 ·
Replies
7

What is the magnitude of P in a dynamics pulley problem?

  • mwelly007
  • · Replies 10 ·
Replies
10

Yukawa potential energy function

  • astenroo
  • · Replies 3 ·
Replies
3

Light Fringes Change When Intensity of One Slit is Reduced

  • copitlory8
  • · Replies 1 ·
Replies
1

Where Did I Go Wrong in Deriving Gravitational Potential Energy?

  • Dead Boss
  • · Replies 2 ·
Replies
2

How Does Tire Pressure Relate to Automobile Weight?

  • imnotsmart
  • · Replies 10 ·
Replies
10

What time t does the particle first cross the x axis?

  • gap0063
  • · Replies 1 ·
Replies
1

Conceptual Question pertaining to force

  • MozAngeles
  • · Replies 2 ·
Replies
2

Projectile Motion at an Angle: Calculating Time and Distance

  • MozAngeles
  • · Replies 4 ·
Replies
4

How Does Velocity Change With Height in Projectile Motion?

  • chessismyfort
  • · Replies 1 ·
Replies
1
Replies
1

Resultant displacement from multiple vector movements

  • 2ndperiod
  • · Replies 3 ·
Replies
3

Finding Time for Package to Reach Sea Level from Ejection?

  • atbruick
  • · Replies 6 ·
Replies
6

Projectile motion over a 35 m hill at 30 degrees

  • XwakeriderX
  • · Replies 10 ·
Replies
10

Solving Gravity Problems in Physics

  • gohanssj2a99
  • · Replies 1 ·
Replies
1

Violation of the second law of thermodynamics?

  • Azorspace
  • · Replies 1 ·
Replies
1

Surface Charge Density of shower

  • popo902
  • · Replies 1 ·
Replies
1

Finding the initial speed of the baseball?

  • gap0063
  • · Replies 1 ·
Replies
1
Replies
2

How Is the Net Charge of Shell B Determined Using Gauss's Law?

  • popo902
  • · Replies 1 ·
Replies
1

Town clock seconds hand speed and centripetal acceleration

  • gap0063
  • · Replies 1 ·
Replies
1

Determine the magnitude of its maximumradial acceleration

  • gap0063
  • · Replies 1 ·
Replies
1

Electric field calculation for 3 point charges

  • vf_one
  • · Replies 2 ·
Replies
2

Find tension in this train coupling

  • Doubell
  • · Replies 1 ·
Replies
1

What is the opposite of tension?

  • JDoolin
  • · Replies 9 ·
Replies
9

Train turning, tangential acceleration and total acceleration

  • gap0063
  • · Replies 1 ·
Replies
1

Finding the mass of a block on an incline attached to a pulley

  • Beachgirl1992
  • · Replies 4 ·
Replies
4

Charge density between parallel plates with field of 1.3×10⁶ N/C

  • atown
  • · Replies 1 ·
Replies
1

Ratio of lengths for open/closed and open/open organ pipes

  • erok81
  • · Replies 6 ·
Replies
6

One pulley attached between two blocks, both sliding on wood.

  • XwakeriderX
  • · Replies 4 ·
Replies
4

Conservation momentum for y- axis

  • inky
  • · Replies 6 ·
Replies
6

Calculating Building Height Using Balloon Drop Experiment

  • delfam
  • · Replies 1 ·
Replies
1

How Is the Total Acceleration of a Car Calculated in Circular Motion?

  • Ry122
  • · Replies 7 ·
Replies
7

Dynamics with complex equations

  • Ry122
  • · Replies 5 ·
Replies
5

Baseball thrown backward from moving train

  • strag
  • · Replies 2 ·
Replies
2

Confusion regarding Thermodynamics - Molar Specific Heats for Gases

  • HolyArrow
  • · Replies 3 ·
Replies
3

What Is the Acceleration of a 77kg Skier Traveling at 45mph Downhill?

  • benjaminwhite
  • · Replies 10 ·
Replies
10

Single slit diffraction spacing between 1st and 2nd order dark fringes

  • louza8
  • · Replies 6 ·
Replies
6

How Do You Solve for Part (D) Using Torque Equations?

  • prof chaos
  • · Replies 1 ·
Replies
1

What happens after the air is evacuated?

  • Raven1972
  • · Replies 2 ·
Replies
2

Force on springs connecting two current-carrying rods

  • cyt91
  • · Replies 2 ·
Replies
2

How Do You Calculate Gravitational Field Strength Between Two Planets?

  • thereddevils
  • · Replies 2 ·
Replies
2

Charges/Coulomb's Law/Electric Fields

  • calcuseless
  • · Replies 8 ·
Replies
8

Weekly Annuity Calculation Method

  • k3wlm4n
  • · Replies 1 ·
Replies
1

Ranking bulb brightness in parallel and series circuits

  • illidari
  • · Replies 5 ·
Replies
5