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

A 0.50 kg object is at rest. A 3.29 N force

  • mustang
  • · Replies 4 ·
Replies
4

How Is Internal Energy Affected by Friction in Physics Problems?

  • Antepolleo
  • · Replies 5 ·
Replies
5

What angle does the ramp make with the ground Static friction

  • ryan
  • · Replies 9 ·
Replies
9

Help with Guitar HW: Standing Waves & Frequency Calcs

  • Acidvoodoo
  • · Replies 2 ·
Replies
2

Where Did the .25J of Energy Go?

  • PS
  • · Replies 2 ·
Replies
2

Calculate the temperature measured on the resistance scale

  • robgb
  • · Replies 1 ·
Replies
1

Solving Incline Plane Problem: Find Min Acceleration

  • J.T.
  • · Replies 3 ·
Replies
3

Solved: Forces on a Bike: Calculating Friction and Total Force

  • Rockdog
  • · Replies 2 ·
Replies
2

How to make a soda can move 10 feet with rubber bands and batteries

  • profkth
  • · Replies 4 ·
Replies
4

Speakers sound level at a certain point.

  • Lipd
  • · Replies 2 ·
Replies
2

Projectile Stone Off Cliff question

  • badboyben03
  • · Replies 5 ·
Replies
5

Kinetic Energy Conservation in an Explosive System

  • walker
  • · Replies 5 ·
Replies
5

What is the average acceleration of a car

  • espo
  • · Replies 4 ·
Replies
4

What is the Taylor series for i^i?

  • Khan
  • · Replies 2 ·
Replies
2

Electric Fields in circular wire

  • discoverer02
  • · Replies 2 ·
Replies
2
Replies
2

Find the gravitational potential energy

  • mustang
  • · Replies 2 ·
Replies
2

Elastic Collision is kinetic energy conserved?

  • Cummings
  • · Replies 2 ·
Replies
2

Why Might My Physics Lab Results Differ from Theoretical Expectations?

  • pezzang
  • · Replies 2 ·
Replies
2

Newtons second law force problem

  • pringless
  • · Replies 3 ·
Replies
3

Find the magnitude of the applied force F

  • ryan
  • · Replies 3 ·
Replies
3

Tension - pully problem w/ monkey

  • missrikku
  • · Replies 4 ·
Replies
4

How to incorporate the initial vellocity

  • kbrowne29
  • · Replies 6 ·
Replies
6

Work Done yadda yadda These problems are killing me

  • Antepolleo
  • · Replies 2 ·
Replies
2

What Is the Maximum Height a Thrown Ball Reaches?

  • Aerospace
  • · Replies 2 ·
Replies
2

Spectral decomposition of the inverse of a Hermitian operator

  • einai
  • · Replies 8 ·
Replies
8

Projectile Motion, speed of ball

  • Lara
  • · Replies 2 ·
Replies
2

About force and motion in Physics

  • Johnny Leong
  • · Replies 2 ·
Replies
2

Where u and v and initial and final velocities

  • mcintyre_ie
  • · Replies 2 ·
Replies
2

Golf putt difficulty on 5° slope with friction

  • coglon
  • · Replies 3 ·
Replies
3

How do Hermitian operators affect normalized vectors?

  • einai
  • · Replies 9 ·
Replies
9

Hockey puck trajectory after perpendicular hammer blow on frictionless surface

  • sirfederation
  • · Replies 2 ·
Replies
2

Hockey Player Acceleration Question

  • MalusIgnis
  • · Replies 9 ·
Replies
9

Formulas and reasoning behind finding focal length

  • Apoxyus
  • · Replies 2 ·
Replies
2

A 66.9 g mass is attached to the end of an unstressed vertical spring

  • Aerospace
  • · Replies 2 ·
Replies
2

Calculating the Period of Binary Stars

  • StephenPrivitera
  • · Replies 7 ·
Replies
7

What Are the Steps to Solve Linear Momentum and Collision Problems?

  • Nanabit
  • · Replies 4 ·
Replies
4

Two blocks with masses of 4kg and 8kg

  • pezzang
  • · Replies 2 ·
Replies
2

Determine the vehicle speed for which this curve is appropriate

  • pezzang
  • · Replies 2 ·
Replies
2

Riddle in a mono-alphabetic code

  • wubie
  • · Replies 2 ·
Replies
2

How Do You Calculate the Dynamics of a Two-Mass Pulley System?

  • mb1174
  • · Replies 3 ·
Replies
3

Finding the Derivative of a Quadratic Function

  • Chris_w
  • · Replies 7 ·
Replies
7

Resolving Vector Problems: Finding Solutions to Confusing Questions

  • Acidvoodoo
  • · Replies 2 ·
Replies
2

How Does a Varying Force Affect Kinetic Energy in Motion?

  • missrikku
  • · Replies 2 ·
Replies
2

Stumping the Teacher: "Will it Float?"

  • Nanabit
  • · Replies 4 ·
Replies
4
Replies
2

Finding net force on flowerpot entering viscous liquid

  • Rockdog
  • · Replies 2 ·
Replies
2

What is the difference between the potential difference, and its emf?

  • JaeSun
  • · Replies 3 ·
Replies
3

Is spin the same as torque in physics?

  • tucky
  • · Replies 3 ·
Replies
3

What Is the Flow Rate in the New Pipe?

  • mary d
  • · Replies 2 ·
Replies
2

What Frequencies Arise from a 4 ms Waveform Cycle?

  • jon9986
  • · Replies 2 ·
Replies
2

Work A mass m hangs from a spring.

  • StephenPrivitera
  • · Replies 5 ·
Replies
5
Replies
3

Balancing Camper's Water Load: Methods and Explanations

  • kangta
  • · Replies 2 ·
Replies
2

Most conducting metal and roughest metal surface for area

  • PRodQuanta
  • · Replies 6 ·
Replies
6

What time does the moon rise at opposition from the sun?

  • Math Is Hard
  • · Replies 6 ·
Replies
6

What is the angle of the pendulum at its highest point?

  • jpnnngtn
  • · Replies 3 ·
Replies
3

How High Was the Building If a Rock Hits the Ground 43m Away?

  • sirfederation
  • · Replies 8 ·
Replies
8

Mutual inductance between a coil and magnet using Neumann's formula

  • HiEdgar
  • · Replies 5 ·
Replies
5

Surface tension for water and mercury

  • mary d
  • · Replies 2 ·
Replies
2

Basketball shot accuracy: range of initial speeds

  • bonita
  • · Replies 2 ·
Replies
2

Maximum speed for rock whirled by two strings at an angle

  • Rockdog
  • · Replies 4 ·
Replies
4
Replies
6

When Should You Use the Law of Sines and Cosines?

  • havechanged
  • · Replies 2 ·
Replies
2

Need ideas for a 7th grade science experiment?

  • photon
  • · Replies 4 ·
Replies
4
Replies
2

What Are the Two Possible Wind Velocities in This Relative Velocity Problem?

  • mcintyre_ie
  • · Replies 3 ·
Replies
3

Kilowatt-hour fill-in-the-blanks homework

  • da-outcast
  • · Replies 2 ·
Replies
2

Golf ball distance when hit down 45 degree slope

  • dar|{anGel_
  • · Replies 6 ·
Replies
6

How to Draw Velocity Vectors for a Car on a Racetrack?

  • sirfederation
  • · Replies 5 ·
Replies
5
Replies
7

Baseball Velocity Projectile motion

  • cowgiljl
  • · Replies 2 ·
Replies
2

Find Optimum Launch Angle For Distance in Physics Class Project

  • HBar
  • · Replies 2 ·
Replies
2

Predicting Gravity on Other Planets

  • Newb
  • · Replies 3 ·
Replies
3

Momentum of a particle relative to the center of mass

  • SpaceKat
  • · Replies 2 ·
Replies
2

What Velocity Does the Sled Reach After 5 Seconds?

  • Phyzor
  • · Replies 3 ·
Replies
3

What is the speed of the block after sliding down the incline?

  • Nb
  • · Replies 3 ·
Replies
3

Flux density and E and B field amplitudes from a 100 W point source at 1 m

  • jlmac2001
  • · Replies 2 ·
Replies
2
Replies
2
Replies
2

How Do Brakes Apply Stopping Force in Physics Problems?

  • guhroovy_dainzaar
  • · Replies 7 ·
Replies
7

A 52.2 kg driver steps off a diving board

  • mustang
  • · Replies 4 ·
Replies
4

A problem on centripetal forces and friction

  • Chiara
  • · Replies 2 ·
Replies
2

Projectile shot from 125 m cliff at 65 m/s and 37°

  • bard
  • · Replies 2 ·
Replies
2

The USS Constitution’s largest anchor weighed 5443 lbs

  • tucky
  • · Replies 4 ·
Replies
4

Coulomb barrier height and distance for 7.68 MeV alpha particles on gold

  • Beer-monster
  • · Replies 7 ·
Replies
7
Replies
2

Solving a System of Equations for Pulley Accelerations and Tensions

  • Chiara
  • · Replies 7 ·
Replies
7

When does the car front catch up with the bicycle rear?

  • Moon
  • · Replies 8 ·
Replies
8

Find the angle relitive to the x axis

  • Mesmer17
  • · Replies 2 ·
Replies
2

How do I solve AP chemical equations without memorization?

  • JKLM
  • · Replies 2 ·
Replies
2

Demonstration on theoretical physics

  • PRodQuanta
  • · Replies 2 ·
Replies
2

Does the Bullet Stop Midair and Does the Falling Monkey Get Hit by the Dart?

  • physicszman
  • · Replies 11 ·
Replies
11

What is the speed of light in a diamond

  • jlmac2001
  • · Replies 2 ·
Replies
2

Where Can I Find Rhodoferax Ferrireducens?

  • PRodQuanta
  • · Replies 3 ·
Replies
3

Calculating Coefficients of Friction and Tension in a Two-Block System

  • Freebunny
  • · Replies 2 ·
Replies
2

So... What is the complication with the force in this setup?

  • FrostScYthe
  • · Replies 5 ·
Replies
5

Does incline angle affect acceleration on motion graphs?

  • rdn98
  • · Replies 2 ·
Replies
2

Three pulling strings with tension

  • rdn98
  • · Replies 5 ·
Replies
5

Checking 7 freely falling body problems

  • meteoguy04
  • · Replies 3 ·
Replies
3