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

2 particles moving along x axis.

  • ~christina~
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5
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26

Finding acceleration from a y vs t graph of a ball on another planet

  • ~christina~
  • · Replies 9 ·
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9

Introductory of Chemistry and nuclear fission

  • leah0084
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4
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5
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5

Shell exploding into three equal pieces with perpendicular velocities

  • Oblio
  • · Replies 4 ·
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4

What Temperature Makes Copper and Tungsten Share the Same Resistivity?

  • langenase
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1

Bird sitting on a branch (vibrations and waves question)

  • Odyssey
  • · Replies 3 ·
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3

Free-body diagram for a hockey puck on frictionless ice

  • reignofdragons
  • · Replies 5 ·
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5

What Forces Act on a Piano in a Free Body Diagram?

  • C.Me.B
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1

A ball is thrown above th house

  • AvrGang
  • · Replies 6 ·
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6

Elevator with load tension 10% less than weight

  • C.Me.B
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1

Can Vectors Have Zero Magnitude with Nonzero Components?

  • kraaaaamos
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5
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Elasticity and young's modulus

  • Kushal
  • · Replies 3 ·
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3

How Do I Choose the Correct Kinematic Formula?

  • pebbles
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2

Computing average rate of mass loss from sun

  • Benzoate
  • · Replies 1 ·
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1

Magnitude of Force on a Submarine Hatch

  • NeRdHeRd
  • · Replies 7 ·
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7

Understanding Centripetal Force and its Relation to Circular Motion

  • Destrio
  • · Replies 6 ·
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6

What was the bullet's speed as it left the barrel?

  • AvrGang
  • · Replies 17 ·
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17
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1
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1

Angular velocity when a star moves between ellipse foci

  • mayurr12
  • · Replies 1 ·
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1

I challenge noone can answer my question

  • mayurr12
  • · Replies 1 ·
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1

What Is the Minimum Static Friction Coefficient to Prevent m1 from Moving?

  • chaotixmonjuish
  • · Replies 6 ·
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6

Poteintial difference to move mass

  • indigojoker
  • · Replies 4 ·
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4

What's the Current of the Potential Difference?

  • mrlucky0
  • · Replies 2 ·
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2

What Is Sam's Top Speed and Travel Distance on Jet Powered Skis?

  • aligass2004
  • · Replies 1 ·
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1

Why does tan(angle) equal coefficient of static friction on an incline?

  • johnsonandrew
  • · Replies 27 ·
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27

When does the shoe reach the ground and what is its velocity?

  • mortho
  • · Replies 8 ·
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8

What is the speed of gold nuclei before colliding at Brookhaven collider?

  • Benzoate
  • · Replies 13 ·
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13

AZING! How does compressing a gas cause an increase in temperature?

  • triber
  • · Replies 3 ·
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3
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11

Magnitude of Force within incline?

  • anglum
  • · Replies 68 ·
3
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68

Non-uniform line charge density with r not constant

  • bravo340
  • · Replies 3 ·
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3

Elastic collision between pendulum bob and block on frictionless surface

  • royguitarboy
  • · Replies 5 ·
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5

60-kg skier sliding at constant velocity on an 11° slope

  • Bob Loblaw
  • · Replies 6 ·
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6

Speed of Block 3.5s After Start Moving | Conical Pendulum

  • chaotixmonjuish
  • · Replies 1 ·
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1

Tension Forces at Equilibrium Problem

  • delecticious
  • · Replies 9 ·
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9

How Does Table Inclination Affect Puck Movement in Air Hockey?

  • linds13088
  • · Replies 1 ·
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1

Calculating Heat Required for Compressed Gas to Become a Gas Again

  • whatmough
  • · Replies 3 ·
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3

Calculating Momentum of Gun-Fired Shell

  • Oblio
  • · Replies 1 ·
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1

Calculating Vector Magnitude from Displacement Vectors Using Law of Sines

  • delecticious
  • · Replies 9 ·
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9

Elevation angle from launch point to highest point of projectile

  • Destrio
  • · Replies 12 ·
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12

What Is the Least Static Friction Coefficient for a Cat on a Merry-Go-Round?

  • Vaness330
  • · Replies 1 ·
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1

A traffic accident with Newton's first law

  • lim
  • · Replies 2 ·
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2

How do I calculate the minimum force needed to prevent sliding due to friction?

  • silvashadow
  • · Replies 10 ·
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10

X and y components of the force that the axle exerts on the pulley?

  • azila
  • · Replies 1 ·
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1

Why Are These Physics Problems So Challenging?

  • Blink691
  • · Replies 1 ·
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1

Rock Launching from a catapult - 2D Kinematics

  • delecticious
  • · Replies 3 ·
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3

Fluid cylindrical bucket Question

  • neoking77
  • · Replies 5 ·
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5

Finding initial speed given final speed

  • jamagner
  • · Replies 3 ·
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3

Advanced Higher Physics Investigation

  • Gizmo0105
  • · Replies 3 ·
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3

Using the Gibbs-Dalton Law to find Specific Heat Ratio

  • ColdFusion85
  • · Replies 4 ·
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4

Finding acceleration and weight

  • lim
  • · Replies 1 ·
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1

What equations are used to solve for tension in single pulley systems?

  • anglum
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1

Pulleys and Gravity: Solving Acceleration for m1 & m2

  • ace214
  • · Replies 9 ·
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9

Forces at Work: Solving for the Magnitude of Resistance

  • lim
  • · Replies 4 ·
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4
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3

Thermodynamics - intial pressure

  • amdma2003
  • · Replies 6 ·
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6

Problem finding average density

  • NeRdHeRd
  • · Replies 6 ·
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6

Finding kinetic coefficient of friction (pulley involved)

  • ccsmarty
  • · Replies 1 ·
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1

Ball thrown horizontally from 24.28 m hits ground at 4 times initial speed

  • Xiongster
  • · Replies 3 ·
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3

Magnitude and angle of vectors a = 6i - 3j and b = 5i + 5j

  • BlinkBunnie069
  • · Replies 3 ·
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3

How Does Momentum Change in a Two-Dimensional Collision?

  • Donnie_b
  • · Replies 4 ·
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4
  • Poll Poll

Calculating Buoyant Force Using Archimedes' Principle

  • blacklily28
  • · Replies 10 ·
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10

Finding Equilibrium in a Hanging Beam System

  • Bugz666
  • · Replies 1 ·
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1

Significant Figures for Determining Block Measurements

  • Jeng
  • · Replies 2 ·
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2

Calculating Time and Velocity with a Spark Tape

  • Nick A
  • · Replies 6 ·
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6

Calculating Work and Potential for Moving Charges in an Electric Field

  • indigojoker
  • · Replies 10 ·
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10

Minimum coefficient of friction for a roofer on a 44° slope

  • pooface
  • · Replies 8 ·
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8

How Do You Calculate Potential Difference in Car Battery Circuits?

  • plaly
  • · Replies 1 ·
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1

Problem involving Newton's 2nd law of motion

  • vkrock
  • · Replies 3 ·
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3

Find Magnitude and Angle of Vector B

  • kevinf
  • · Replies 10 ·
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10

Rotational Kinetic Energy -> Lightning Speed Running?

  • eraemia
  • · Replies 3 ·
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3

Deriving the Gravitational Jerk Equation and Solving for Time and Position

  • MCarroll
  • · Replies 3 ·
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3

2 dimension kinematics Cutnell Chapter 3 Prob 26

  • Jacque77
  • · Replies 3 ·
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3

Isobaric expansion of nitrogen gas: why is my heat calculation wrong?

  • amdma2003
  • · Replies 5 ·
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5

Strange physics question involving no constants and all variables.

  • TexasCow
  • · Replies 6 ·
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6

Newton's Laws: Elevator Acceleration and Cork Movement

  • Grapz
  • · Replies 2 ·
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2

Wheatstone bridge with Vg between points B and D

  • mjosephh
  • · Replies 7 ·
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7

Kinematics - How long does this basketball take to fall down

  • maryyy16
  • · Replies 3 ·
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3

Electric and magnetic fields question

  • Oblio
  • · Replies 10 ·
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10

Why Is Potential Constant When E-Field Is 0?

  • indigojoker
  • · Replies 1 ·
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1

How Do You Calculate Tension in Ropes on a Frictionless Ramp?

  • Smessy
  • · Replies 1 ·
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1

How Fast and Far Can Jet Powered Skis Go?

  • aligass2004
  • · Replies 5 ·
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5

Calculating Friction Force on 5000kg Truck on 14° Slope

  • aligass2004
  • · Replies 11 ·
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11

Tension in cable between tugboat and ship

  • Naikon
  • · Replies 7 ·
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7

Angle plus horizontal velocity,

  • trustabdy
  • · Replies 8 ·
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8

How Does Newton's Third Law Apply to Stacked Blocks in an Elevator?

  • jessemarquez
  • · Replies 1 ·
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1

Solving Speed of a Softball Problem

  • Robdog
  • · Replies 1 ·
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1

How much force pull forward on the rope

  • aligass2004
  • · Replies 6 ·
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6
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4

How Is Energy Calculated in a Nuclear Fusion Reaction?

  • Benzoate
  • · Replies 1 ·
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1

Calculating Net Force on an Object Moving in a Plane

  • crazy_shoes
  • · Replies 12 ·
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12

Relevistic energy problem : part 2

  • Benzoate
  • · Replies 1 ·
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1

What are the components of the particle's velocity

  • tdusffx
  • · Replies 4 ·
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4

Finding Equivalent Force on a Stubborn Mule

  • willingtolearn
  • · Replies 15 ·
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15