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

More than one dielectric ibetween a parallel plate capacitor

  • rusty009
  • · Replies 13 ·
Replies
13

Electric Potential Energy of a Charged Particle in an Electric Field

  • European Sens
  • · Replies 2 ·
Replies
2

Solving Rotational Force in Beverage Engineering

  • iamkristing
  • · Replies 1 ·
Replies
1

What exactly is overtone? please

  • alexavier
  • · Replies 1 ·
Replies
1

Lowest Final Temp: Which Substance to Add?

  • chiurox
  • · Replies 11 ·
Replies
11

How Can I Become an Expert in Solving Physics Questions?

  • alexavier
  • · Replies 1 ·
Replies
1

How Is Work Calculated in a Two-Rope Tension Problem?

  • wind326
  • · Replies 1 ·
Replies
1

Centripetal Force and G Forces while travelling over a hill

  • Zach Smith
  • · Replies 9 ·
Replies
9

Find the distance traveled by the block

  • DeanBH
  • · Replies 2 ·
Replies
2

Calculating the mass of a comet using the impact method

  • joe17857
  • · Replies 11 ·
Replies
11

Help needed - Newtons first law - particles in equilibrium

  • Hemmelig
  • · Replies 7 ·
Replies
7

What is the electric field at a point midway between two charges?

  • daniel69
  • · Replies 4 ·
Replies
4

Threshold Energy Calculation for Proton-Proton Collision

  • FreeAnnyong
  • · Replies 2 ·
Replies
2

Integration Center of Mass Problem -Really frustrated

  • bcjochim07
  • · Replies 11 ·
Replies
11

Can a Man Swing Across a 50m Canyon with a 30m Grapple Hook?

  • godofrock
  • · Replies 3 ·
Replies
3

Solving Homework Equations for Relativistic Rocket

  • joker_900
  • · Replies 1 ·
Replies
1

Spacecraft Deep Impact - Comet's mass

  • treverd
  • · Replies 1 ·
Replies
1

Understanding Wave Phase: Definition and Equations

  • foxjwill
  • · Replies 3 ·
Replies
3

SHM horizontal spring mass system

  • bionerdette
  • · Replies 1 ·
Replies
1

Fluid Mechanics of a diving bell

  • clope023
  • · Replies 5 ·
Replies
5

Very beginner physics 1D motion question

  • mistymoon_38
  • · Replies 1 ·
Replies
1

Energy required to place a satellite in orbit

  • XxBollWeevilx
  • · Replies 15 ·
Replies
15

Density of a planet using orbit of a satellite

  • XxBollWeevilx
  • · Replies 6 ·
Replies
6
Replies
1

So i did this question and got an answer of 43 N i was wondering if

  • tascja
  • · Replies 2 ·
Replies
2

What Is the Intensity of Sound at 123 dB?

  • yoshiba
  • · Replies 2 ·
Replies
2

Friction and Acceleration: Solving a Rope Pulling Problem

  • sprinter08
  • · Replies 7 ·
Replies
7

Find I(coil): Solenoid & Coil Setup

  • splac6996
  • · Replies 1 ·
Replies
1

How Do Planetary Orbits Reveal the Masses of Stars and Heights of Satellites?

  • coolfreesia
  • · Replies 1 ·
Replies
1

Is the Mass of My Birthday Pulley Evenly Distributed?

  • bcjochim07
  • · Replies 1 ·
Replies
1

How to calculate tension in hanging ropes

  • slyskittle
  • · Replies 3 ·
Replies
3

Solving a Trajectory Problem Involving a Watermelon

  • MEAHH
  • · Replies 1 ·
Replies
1

How Do You Calculate Hydrostatic Pressure in a Spherical Water Tank?

  • teamgonuts
  • · Replies 1 ·
Replies
1

Why Does the 1/3 Factor Appear in the Moment of Inertia Calculation?

  • salman213
  • · Replies 1 ·
Replies
1

How Much Work Is Done by an Olympic Triathlete Accelerating on Her Bicycle?

  • checkmarks
  • · Replies 2 ·
Replies
2

Solve Balmer's Formula for Wavelengths

  • elephantorz
  • · Replies 3 ·
Replies
3

Volume of a liquid in a container

  • clope023
  • · Replies 5 ·
Replies
5
Replies
5
Replies
10

How Much Space Does 0.736 kg of Oxygen Occupy at 1°C and 105 Pa?

  • cstout
  • · Replies 4 ·
Replies
4
Replies
2

Temperature in Thompon's experiments.

  • elephantorz
  • · Replies 3 ·
Replies
3

Resonant RLC Circuit Homework - Purcell 8.4

  • tjd_maximum
  • · Replies 1 ·
Replies
1

Current of a coil surrounding a solenoid

  • skinner
  • · Replies 11 ·
Replies
11

Smooth slope - A level question.

  • DeanBH
  • · Replies 2 ·
Replies
2

Radio Transmission: Jupiter-Earth Time for Response

  • kokenwa
  • · Replies 1 ·
Replies
1
Replies
1

Explain why the average velocity of the gas molecules in a container is zero

  • joe1joe1joe2
  • · Replies 3 ·
Replies
3

Magnetic Force on a Vertically Moving Electron Near the Equator

  • soul5
  • · Replies 8 ·
Replies
8

Solving Gauss Law Problems: Understanding Flux & Point Charges

  • goyal.vishesh
  • · Replies 1 ·
Replies
1

Center of Mass of compound cylinder

  • corochena
  • · Replies 13 ·
Replies
13

Energy in simple harmonic motion

  • kjartan
  • · Replies 2 ·
Replies
2

Angular Velocity of a swinging Sphere

  • zylaxice
  • · Replies 3 ·
Replies
3

Does This Van de Graaff Generator Question Make Sense?

  • daNAV1GATOR
  • · Replies 18 ·
Replies
18

Gravitational Potential Energy of a rope

  • FailingPHYS
  • · Replies 4 ·
Replies
4

Electric Field Between/Above Parallel Charged Rods

  • Fusilli_Jerry89
  • · Replies 1 ·
Replies
1

How Do You Calculate Displacement from Town B to Town C?

  • MercifulBoss
  • · Replies 6 ·
Replies
6

How Does an Airplane's Aluminum Antenna React to Earth's Magnetic Field?

  • divacute2
  • · Replies 2 ·
Replies
2

Help Me Solve My Problems: U-Tube and Styrofoam Bucket

  • peaches1221
  • · Replies 2 ·
Replies
2

Can Watts Be Converted into Ohms?

  • anonymous820
  • · Replies 2 ·
Replies
2
Replies
1

How Many Extra Electrons Does a Latex Sphere Have in an Electric Field?

  • ProtoXtype
  • · Replies 1 ·
Replies
1

Electric Potential Car Battery Problem

  • maphco
  • · Replies 7 ·
Replies
7

Help With Physics Homework Please I'm Desperate

  • luvtodance151
  • · Replies 4 ·
Replies
4

Linear Mass Density of current and wires

  • splac6996
  • · Replies 1 ·
Replies
1

What Distance from Earth Achieves Weightlessness for Astronauts?

  • bcjochim07
  • · Replies 1 ·
Replies
1

Charge movement in a magnetic field along the z-axis (into page/out of page)

  • pinkenergy
  • · Replies 16 ·
Replies
16

How Much Fresh Water Is Needed to Submerge a Submarine in Salt Water?

  • b0r33d
  • · Replies 1 ·
Replies
1

F(avg) and Fmax during collision

  • keltix
  • · Replies 15 ·
Replies
15
Replies
3

Converting 26.6 mA to Amps: .026 or .0026?

  • anonymous820
  • · Replies 2 ·
Replies
2

Determine the distance of this point from the center of the Earth.

  • Sheneron
  • · Replies 11 ·
Replies
11

Calculating the Refraction Angle of a Light Ray Incident on a Prism

  • BioMechanical
  • · Replies 2 ·
Replies
2

Slopes of a Force vs. Charge and Force vs. Distance Graph

  • heatherann
  • · Replies 1 ·
Replies
1

5.76x10^-3 NRadiation Force on Echo II Satellite Ballon

  • jabosh7777
  • · Replies 4 ·
Replies
4

Parallel plates with a mass m at an angle

  • ~christina~
  • · Replies 2 ·
Replies
2

Please i cannot find any help on this question so far

  • bharp24
  • · Replies 2 ·
Replies
2

Conservation on Angular Momentum

  • misskk24
  • · Replies 6 ·
Replies
6

Calculating Density of Ice from a Buoyant Force Problem - Homework Help

  • b0r33d
  • · Replies 3 ·
Replies
3

Wavelengths of lowest and highest audible frequencies

  • Lyphta
  • · Replies 1 ·
Replies
1

Center of Mass: Weight Distribution for Bob & Charlie

  • silentshimmer
  • · Replies 2 ·
Replies
2

Maximizing Brick Stability: Solving the Brick Torque Problem

  • bcjochim07
  • · Replies 3 ·
Replies
3

Oscillation frequency of circuit

  • ttiger2k7
  • · Replies 2 ·
Replies
2
Replies
3

Ampere's Law-when does it work?

  • JasonBourneV
  • · Replies 4 ·
Replies
4

Radius of Curvature for Mirror w/ 10.0cm Candy Bar

  • kdl8614
  • · Replies 3 ·
Replies
3

What Resources Can Help You Understand Emission Spectra?

  • elephantorz
  • · Replies 3 ·
Replies
3

Finding velocity with changing distance and acceleration

  • bluedolphin12
  • · Replies 4 ·
Replies
4

Solve Urgent Magnetic Field Problem - Find Net Field, Charge & Electric Field

  • physicsbhelp
  • · Replies 14 ·
Replies
14

Solving Kepler's Equation for Comet Orbit Time Around Sun

  • susan__t
  • · Replies 1 ·
Replies
1

Carbon-14 Dating Age Calculation

  • xinlan
  • · Replies 1 ·
Replies
1

Certain isotope tell you that the decay rate decreases

  • xinlan
  • · Replies 3 ·
Replies
3

Calculating Impact Speed and Mass of Ice Cube: Temperature/Heat Help

  • peaches1221
  • · Replies 5 ·
Replies
5

Question about ELectric field and electric potential

  • yosite
  • · Replies 3 ·
Replies
3

Electric Circuit Connected to Ground

  • Ricky2357
  • · Replies 1 ·
Replies
1

Calculating EMF from Magnetic Flux and Time

  • jcpwn2004
  • · Replies 5 ·
Replies
5

Is RMS Voltage or Peak Voltage Used for Working Resistance?

  • Nuclearhermit
  • · Replies 2 ·
Replies
2

Satellite Motion - This doesnt seem right

  • TheKovac
  • · Replies 4 ·
Replies
4

Calculating Electric Field Using Lorentz Force Law

  • Duodora
  • · Replies 6 ·
Replies
6

How Is J₀ Calculated in a Wire with Nonuniform Current Density?

  • splac6996
  • · Replies 1 ·
Replies
1