Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
How to find the turns ratio between the primary and secondary coils.
  • nontradstuden
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Simple harmonic motion energy conservation problem
  • al_famky
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4
How Wide is the Central Bright Fringe in Single Slit Diffraction?
  • Mr.Sure
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Gauss's Law - field of infinite plane sheet
  • ZedCar
  • · Replies 8 ·
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8
Square Loop Moving Through Varying Magnetic Field
  • trevor51590
  • · Replies 8 ·
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8
How Do Newton's Third Law and Force Calculations Apply to Hockey Players on Ice?
  • VidsEpic
  • · Replies 7 ·
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7
Ampere's Law: Cylindrical conducter with varying current
  • Renaldo
  • · Replies 9 ·
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9
How Many Hydrogen Atoms Minimum for All Emission Spectra from n=5?
  • sid94
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How to culculate rms current using Watts in a Household Curcuit
  • jmmckiss
  • · Replies 3 ·
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3
Kirchhoff's Voltage Law for PNP Transistor Circuit
  • JJBladester
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2
Understanding Rotational Motion: Solving for Linear and Angular Acceleration
  • jano.sl
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Finding charge of a capacitor in RC circuit
  • Teptip
  • · Replies 7 ·
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7
Power to raise water from point A to B
  • zeralda21
  • · Replies 10 ·
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Finding KE of a rod with two particles and angular velocity?
  • rockchalk1312
  • · Replies 3 ·
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3
Find the Electric field strength at a point between two charges
  • rocapp
  • · Replies 3 ·
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3
Finding Torque/Vert/Horiz. Forces for a Sign
  • mmravunac
  • · Replies 6 ·
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6
How Can a Convex Mirror Project a Real Image?
  • kmr159
  • · Replies 2 ·
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Electric Potential and bounds of integration
  • timmastny
  • · Replies 2 ·
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2
How Is Kinetic Energy Calculated for a 1D Oscillating String with One End Free?
  • Atheel
  • · Replies 18 ·
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18
How Do You Calculate the Inertia Tensor for a Complex Molecule?
  • dinospamoni
  • · Replies 5 ·
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5
Calculating the buoyant force on a cube
  • RichardCash
  • · Replies 1 ·
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1
Finding the moment(s) of inertia
  • dinospamoni
  • · Replies 2 ·
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Equilibrium, Torque and Friction (hard)
  • hms.tech
  • · Replies 15 ·
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15
Plane where clocks are synchronized in both frames
  • LoadedAnvils
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1
Calculate Velocity of 10kg Block on Incline Plane | Work-Energy Theorem
  • ms.cupcake
  • · Replies 8 ·
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8
Magnetic Fields from Currents in a Wire and a Cylindrical Shell
  • maiad
  • · Replies 3 ·
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3
Time and Distance Calculations for Road Trip from Dallas to Chicago
  • taraxrose
  • · Replies 2 ·
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2
Calculating Magnetic Force on a Lightning Rod: Homework Question [Answer Inside]
  • Workout
  • · Replies 1 ·
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1
Having trouble with Helmholtz Coil Experiment Calculations
  • Darthturkey
  • · Replies 1 ·
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1
Calculating Pressure at the Center of the Earth
  • derravaragh
  • · Replies 1 ·
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1
Two Beams of Light Phase Difference
  • dwk17
  • · Replies 1 ·
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1
Entropy Generation of an Electric Motor: Analyzing du/dt & dS/dt
  • wynnl
  • · Replies 1 ·
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1
Having trouble linearizing an equation
  • Hedgehog1
  • · Replies 1 ·
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1
Static friction between two objects.
  • Matt_h
  • · Replies 1 ·
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1
Electric Potential/Potential Energy problem
  • jawhnay
  • · Replies 4 ·
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4
Aberration of Light: Understanding Transformation Equations for Coordinates
  • BareFootKing
  • · Replies 3 ·
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3
Electrostatics not on the same axis
  • Jabababa
  • · Replies 7 ·
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7
Max Friction Coefficient for 34° Factory Box Slide in 3.2s
  • Robertoalva
  • · Replies 3 ·
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3
Differences Between Conducting and Nonconducting Spherical Shells
  • Soccerdude
  • · Replies 1 ·
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1
Find the Perfect Pot for Quick & Hot Cooking
  • kevinnn
  • · Replies 8 ·
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8
Need help finding center of mass of a molecule.
  • Sneakatone
  • · Replies 14 ·
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14
Why Are Commercial Jet Windows So Small?
  • kevinnn
  • · Replies 4 ·
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4
When to use destructive or constructive equation for young's DS exp.
  • Vickyvicksss
  • · Replies 2 ·
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2
Disintegration, special relativity
  • Unicorn.
  • · Replies 16 ·
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Nonconducting Rod bent into Circle
  • Soccerdude
  • · Replies 1 ·
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Sphere rolling in circular bowl
  • WannabeNewton
  • · Replies 2 ·
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2
Energy and power production units
  • few
  • · Replies 1 ·
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1
Master Basic Vector Problems with Clear Explanations | Physics Textbook Tips
  • cdahal
  • · Replies 4 ·
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4
Determine Current in a Solenoid
  • rmcgovern
  • · Replies 1 ·
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Gravitational Force: Explaining -Fgrav*(x/r) to Tom Koolen
  • tomkoolen
  • · Replies 2 ·
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2
Determine the Velocity and Acceleration of the Rotating Rod
  • Northbysouth
  • · Replies 2 ·
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2
Quick clarification on equation of motion
  • frozenguy
  • · Replies 8 ·
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8
Tension of a rope with a hanging mass and acceleration
  • justadaftspark
  • · Replies 15 ·
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15
Calculating Velocity of a 10kg Bicycle Down a 150m Hill
  • tuttyfruitty
  • · Replies 2 ·
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How do you solve for A in a critically damped oscillator problem?
  • derravaragh
  • · Replies 2 ·
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Testing a proportional relationship without a graph
  • GandhiReborn
  • · Replies 2 ·
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Hydrostatics - Why is the pressure force the same?
  • theBEAST
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Two questions regarding linear momentum and conservation
  • sankalpmittal
  • · Replies 4 ·
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How Do You Calculate Work Done to Overcome Friction on an Inclined Plane?
  • ms.cupcake
  • · Replies 8 ·
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Why is the equation for delta t in a Michelson interferometer 2(L/v - L/c)?
  • BareFootKing
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Two Block Problem: Solving for Forces (Parts b & c)
  • ZanyCat
  • · Replies 2 ·
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2
How to find the difference in hieght in a u-tube(Please help)
  • Stretch999
  • · Replies 7 ·
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Finding current and Power delivered to Resistors
  • elizabethrae
  • · Replies 15 ·
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15
Solving an Elastic Collision: Billiard Ball Momentum
  • Juicy
  • · Replies 3 ·
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3
Find mass of Jupiter using Jupiter's moon, Io
  • totallyclone
  • · Replies 9 ·
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9
Understanding the One Dimensional Wave Equation
  • OnceKnown
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2
Design a Capacitor for Electrical Circuits: Given Power, Time, Voltage
  • GreenPrint
  • · Replies 22 ·
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What is the Velocity of a Shank with Attached Spring Striking a Button?
  • doombanana
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Finding the range of speed on a banked curve without slipping
  • totallyclone
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Whirling around a mass to find max force of tension
  • totallyclone
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Inelastic Collision At An Angle
  • Saendy
  • · Replies 3 ·
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3
Ampere's Law: Determining magnetic fields of a shell conductor
  • Renaldo
  • · Replies 2 ·
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2
Problem regarding conservation of momentum in different systems
  • ParrotPete
  • · Replies 9 ·
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9
Ideal Gas Law Q: Increase in Volume w/ 100°C Water -> Steam
  • CAF123
  • · Replies 8 ·
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8
Vout of non-inverting adder circuit
  • leroyjenkens
  • · Replies 7 ·
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7
Interference-Diffraction Pattern
  • jaumzaum
  • · Replies 6 ·
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6
Bowling balls rolling up a ramp (conservation of energy)
  • macaholic
  • · Replies 14 ·
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14
Using a stone to hunt down an animal with Centripetal Forces
  • totallyclone
  • · Replies 5 ·
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5
Rolling Dynamics of a Rotating Cylinder on an Inclined Plane
  • sergiokapone
  • · Replies 33 ·
2
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Resistive force question using T (tension)
  • Siliconwombat
  • · Replies 6 ·
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6
Understanding Static Magnetism: How Does it Work?
  • Agkinnear
  • · Replies 13 ·
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How can I calculate the cooling time of a steel ball using thermal radiation?
  • mstrakl
  • · Replies 4 ·
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Adiabatic steam turbine - find the second law efficiency
  • theBEAST
  • · Replies 2 ·
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2
What is the electric potential energy of a proton
  • Jabababa
  • · Replies 2 ·
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Calculating Weight Savings with Rectangular Section Beam
  • MMCS
  • · Replies 5 ·
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5
Will the Safe Tip Over During the Emergency Stop?
  • Drespar
  • · Replies 2 ·
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Magnetic field in a solenoid due to induced current in a coil
  • CAF123
  • · Replies 13 ·
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Calculating Work Done by Electrical Force on a Moving Charge
  • assaftolko
  • · Replies 44 ·
2
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Thermal resistances adding formula
  • LinearMan
  • · Replies 4 ·
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Spring. (Potential energy and work done)
  • coconut62
  • · Replies 5 ·
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Electric force between objects that are in brief contact
  • Jabababa
  • · Replies 5 ·
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5
Solving a Suspended Ball in an Electric Field
  • Jabababa
  • · Replies 4 ·
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General electric field question
  • Jabababa
  • · Replies 1 ·
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Momentum increased in electron-positron annihilation?
  • Fosheimdet
  • · Replies 4 ·
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4
Understanding Bias in Semiconductor Devices
  • cubejunkies
  • · Replies 1 ·
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A rubber ball is plugging a whole in bottom of tank. When will it fail
  • DylanW
  • · Replies 3 ·
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Rise in temperature after a collision
  • runningninja
  • · Replies 3 ·
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Relative Velocity: How Far Will the Boat Move Downstream Without Correction?
  • AimlessWander
  • · Replies 1 ·
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Uniform circular motion particle problem
  • EngnrMatt
  • · Replies 3 ·
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What is the maximum speed of the bob in a simple pendulum?
  • Mangoes
  • · Replies 1 ·
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