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

How to Calculate Work on an Object with Varying Position-dependent Force?

  • mcmuffinpopper
  • · Replies 5 ·
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5

How to Use Symbols to Solve a Ramp Problem?

  • Flinze
  • · Replies 2 ·
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2

Total energy of the flowing fluid

  • goldfish9776
  • · Replies 1 ·
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1

How do I figure out the final position of the block?

  • Chozen Juan
  • · Replies 4 ·
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4

Why is P1 = P_atm - ρ_water(gh2) - ρ_oil(gh1) + ρ_mercury(gh3)?

  • goldfish9776
  • · Replies 10 ·
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10

Finding the frequency of a vibrating particle on a string?

  • kregg87
  • · Replies 2 ·
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2

Calculate Pressure: Elephant Mass 4000 kg, Leg Diam 25 cm

  • Nanu Nana
  • · Replies 5 ·
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5

Finding relative density of glycerin from mass of container

  • Nanu Nana
  • · Replies 22 ·
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22

2 vectors with cylindrical polar coordinates

  • hmaier
  • · Replies 9 ·
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9
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1

Formula of weight of surface water

  • goldfish9776
  • · Replies 3 ·
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3

Why is dy 0.005/2 and not 0.005 in shear stress calculation?

  • goldfish9776
  • · Replies 3 ·
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3

Force on a charged particle inside a charged spherical balloon

  • somerandomuser
  • · Replies 6 ·
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6

Ball velocity from box sliding distance: energy vs momentum

  • fishspawned
  • · Replies 6 ·
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6

How to find the speed of a planet around the sun

  • Matthew_Maz
  • · Replies 1 ·
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1

Density: Cube of Aluminum to Copper Sphere

  • JustinDaniels
  • · Replies 3 ·
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3
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7

Finding final speed of object on incline

  • RoboNerd
  • · Replies 5 ·
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5

Harmonic motion- Two springs, One mass

  • Lito
  • · Replies 9 ·
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9
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5

Satellite angle, remote sensing

  • Firben
  • · Replies 5 ·
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5

Heat Capacities Given Equation of State

  • Yoni V
  • · Replies 5 ·
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5

2D elastic collision between identical balls at 30°

  • Jam51
  • · Replies 23 ·
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23

Where will a meter stick with a 2N weight at the 10cm mark balance?

  • Rumplestiltskin
  • · Replies 15 ·
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15

Effect of rotating polarizer on intensity of transmitted light

  • NihalRi
  • · Replies 3 ·
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3

What is the State of Water in a Rigid Container at 120oC?

  • Monsterboy
  • · Replies 21 ·
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21

What Determines Equilibrium in a Liquid-Vapor System?

  • erisedk
  • · Replies 2 ·
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2

Specific Heat of an Ideal Gas: Temperature vs. Molecular Weight and Structure

  • Monsterboy
  • · Replies 5 ·
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5

Static measurement of Spring constant with error value

  • RJLiberator
  • · Replies 11 ·
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11

Force on 30kg cart from 50kg cart when pushed together

  • Drake M
  • · Replies 6 ·
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6

Man pulling 15-kg sled with 5-kg dog: work and KE graph

  • ZCV99
  • · Replies 4 ·
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4

(Simple Electromagnetics) A charge placed between 2 charges

  • runninthrutha6
  • · Replies 3 ·
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3

How Is Work Calculated in Thermodynamic Processes?

  • kent davidge
  • · Replies 9 ·
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9

Understanding Electrostatics: Calculating Potential of Metal Spheres

  • vijayramakrishnan
  • · Replies 1 ·
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1

Calculating Mass and Velocity of Exploding Object Pieces

  • cvc121
  • · Replies 4 ·
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4

Interference of light Intensity

  • mbnMecha
  • · Replies 3 ·
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3

2 capacitors reaching equillibrium?

  • **Mariam**
  • · Replies 27 ·
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27

Finding final pressure when heating a tank 70% filled with water

  • Baybora
  • · Replies 24 ·
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24

Why Isn't Induced Charge Shown in Electrostatics Problems?

  • vijayramakrishnan
  • · Replies 5 ·
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5

Rearranging change in kinetic energy for mass

  • Marts12
  • · Replies 2 ·
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2

Finding the mass of a quantity of gas given P, V, T

  • Kitaek Lee
  • · Replies 5 ·
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5

Frequency problem (static equilibrium)

  • toesockshoe
  • · Replies 2 ·
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2

Finding acceleration in multiple pulley system

  • Aireaz
  • · Replies 1 ·
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1
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15

Egg Drop Competition - Using popsicle sticks vs straws

  • LevelsToThis
  • · Replies 1 ·
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1

Understanding why the initial height of one block is equal t

  • RoboNerd
  • · Replies 33 ·
2
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33

Calculating the Stopping distance

  • xavierengineering
  • · Replies 7 ·
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7

Bernoulli River: Calculating Water Speed

  • Dilman Sidhu
  • · Replies 5 ·
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5

What is the solution for finding F1 and F2 when angles are not equal?

  • Kalenz
  • · Replies 2 ·
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2

Final velocity of a car rolling down a ramp using energy

  • rbesfe
  • · Replies 1 ·
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1

How Fast Does a Tornado Travel If Lightning Strikes Twice?

  • **Mariam**
  • · Replies 10 ·
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10

Kepler's laws multiple choice question analysis

  • **Mariam**
  • · Replies 3 ·
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3

A car stopping on a slippery surface on an uphill

  • Heidi Henkel
  • · Replies 41 ·
2
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41

Calculating Electric Field and Distance for a Point Charge

  • WeiLoong
  • · Replies 9 ·
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9

MCQ question 8 on total energy

  • **Mariam**
  • · Replies 1 ·
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1

Is electric potential a vector or scalar quantity?

  • WeiLoong
  • · Replies 4 ·
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4

Work and power to pull a 70 kg skier up a 30° slope at constant speed

  • komarxian
  • · Replies 9 ·
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9

Questions about 3 colliding object. Can i get some help?

  • Botond
  • · Replies 5 ·
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5

The internal energy in isobaric process

  • Jiya
  • · Replies 21 ·
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21

Instantaneous Velocity of a electron with a provided formula

  • Flinze
  • · Replies 8 ·
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8

Determining the rate at which speed changes

  • x2017
  • · Replies 10 ·
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10

Variation on 3-ball elastic collision

  • epilepticbunny
  • · Replies 7 ·
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7

Absorption Line's Different Wavelengths

  • Atominate
  • · Replies 10 ·
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10

Electric intensity at orthocenter of a triangle.

  • Julian102
  • · Replies 2 ·
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2

Can a Bridge Voltage Divider be Used to Calculate Voltage Gain?

  • Pablo3
  • · Replies 8 ·
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8

What Is the Potential at the Center of Concentric Metallic Spheres?

  • Yashbhatt
  • · Replies 23 ·
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23

How Do Clocks on Moving Trains Behave Near a Tree?

  • Dennydont
  • · Replies 2 ·
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2

Calculating m for a Sloping Block with Increased Mass

  • goldfish9776
  • · Replies 17 ·
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17

Constraint of moment about an axis

  • goldfish9776
  • · Replies 13 ·
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13

Center of mass for two small particles

  • myko
  • · Replies 4 ·
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4

Total forces acting downward on the plane

  • goldfish9776
  • · Replies 2 ·
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2

Solving a 100N Weight Block Motion Problem

  • goldfish9776
  • · Replies 11 ·
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11

Is average force dependent on the exertion time of force?

  • dawningparadox
  • · Replies 6 ·
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6

What force needed to launch an object from moon to Earth

  • 5P@N
  • · Replies 14 ·
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14

Friction between roller coaster and track

  • LaszloNagy
  • · Replies 15 ·
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15

Minimum work to separate 1 kmol O2 and N2 from air

  • obscure
  • · Replies 4 ·
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4

How Does the Work-Kinetic Energy Theorem Apply to a Diving Scenario?

  • master_333
  • · Replies 6 ·
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6

How Do You Calculate the Diameter of a Camera Lens Based on a Photograph?

  • BrokenSoul
  • · Replies 15 ·
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15

Can student A be lifted off the floor by student B climbing the rope?

  • komarxian
  • · Replies 13 ·
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13

Electric Field between two charged plates

  • ft92
  • · Replies 4 ·
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4

Astrophysics - Hour angle calculation

  • rozma3
  • · Replies 11 ·
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11

Finding equivalent resultant force for distributed load divided into parts

  • goldfish9776
  • · Replies 6 ·
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6

Collision of rolling billiard balls

  • AlonsoMcLaren
  • · Replies 4 ·
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4

Calculating mass by pressure needed to move object

  • Physics123537
  • · Replies 3 ·
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3

Work done by or on a gas from b to c

  • kent davidge
  • · Replies 9 ·
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9

Solving for FBa: Why 59N and Not 50.6j + 8.43k?

  • goldfish9776
  • · Replies 5 ·
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5

Calculating Work Done in Pushing a Lawn Mower: A Physics Problem

  • master_333
  • · Replies 2 ·
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2
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6

Physics of a microwave - why does the turntable spin?

  • tayles123
  • · Replies 9 ·
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9

Work done = 1 N x 1 m = 2 kg 1m2 1.414s-2 = 1 J ? wrong ?

  • Chalmers
  • · Replies 14 ·
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14

Relativity - Length Contraction Problem

  • Jacob Ward
  • · Replies 1 ·
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1

Magnetic moment and magnetic properties

  • Suraj M
  • · Replies 2 ·
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2

Finding Energy Stored in a Capacitor

  • le@rner
  • · Replies 3 ·
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3

Current in circuit with two parallel resistors in series

  • calculator20
  • · Replies 13 ·
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13

Why does a rotating rod have normal acceleration?

  • werson tan
  • · Replies 1 ·
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1

Solid sphere on rough surface: momentum conservation

  • Prannoy Mehta
  • · Replies 11 ·
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11
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20
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14

How to Calculate change in volume produced by a piston?

  • spacealgae
  • · Replies 35 ·
2
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35

How can I develop a project around hard disk access times?

  • cmkluza
  • · Replies 2 ·
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2