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.
Pushing an apple underwater
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12
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305
Solving Orbital Speed with Energy & Angular Momentum Conservation
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6
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265
Non-linear isotropic dielectric capacitor
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10
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365
Work done by gravity and the minus sign
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7
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262
Electron in a time variable magnetic field
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5
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247
Work Done by a Couple
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4
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268
Does the book have an error in the addition of these two vectors?
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2
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231
Definition of a non-polar molecule
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7
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234
Density of a sphere that has a cavity
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5
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277
AP Physics C Mechanics: Linear Momentum for Colliding Billiard Balls
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4
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219
Direction of movement and sign of the charged particle
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5
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276
Heat Transfer of ice
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7
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8K
Calculating distance of Mars from the Sun based on two elongations
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2
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228
Assumptions for string vibrator system
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11
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269
Pressure Cooker Problem
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14
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490
Battery alone deflects compass needle?
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14
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3K
Power dissipated in this circuit with 2 batteries and 3 resistors
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22
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896
What are the x- and y-components of the velocity vector?
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4
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9K
Laser shining through slits
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4
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256
Do different length ramps violate conservation of energy?
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10
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278
Minimum stopping distance so a box on a truck doesn't slip (friction)
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20
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644
Agree or Disagree? Analyzing Wave Amplitudes
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2
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240
How to calculate Apparent Weight of a passenger in a car going over a bump?
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11
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276
Average velocity of a particle
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7
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269
Equipotential surface (test questions)
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19
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319
Mixing two ideal gases with different V, T at constant pressure
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16
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357
Normal modes of four coupled oscillating masses (Kleppner and Kolenkow)
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4
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226
Experiment about diode related to temperature and potential difference
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11
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428
Shouldn't this be kinetic friction instead of static friction!?
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13
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296
Combination of 2 formulas for a graph
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31
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838
Gravitational equipotential multiple choice problem
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4
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235
Two masses, two pulleys and an inclined plane
2
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68
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8K
Basic Stress and Strain question -- Rock on top of a vertical column
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19
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398
Horizontal force on a horizontal bar
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2
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245
Maximizing Range/Time in Air of an Airplane: Solving with Calculus
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4
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270
Help me with this boy who is dragging a skate up a hill
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8
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288
Why is the Highlighted Statement True?
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15
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340
Using first principles, how to get the equation of motion?
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8
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2K
Velocity of efflux out of a water tank
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19
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4K
Final Angular Momentum of a Space Station
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10
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405
Finding Current in Resistors & Charge of Capacitor
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4
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254
Rearranging formula using logarithms
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11
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384
Work-Energy Theorem and Friction
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9
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300
Calculating flow rate when emptying liquid from a closed-top tank
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11
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443
Faraday's law and Magnetic Fields
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3
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246
Circular Motion: A coin on a rotating disk
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19
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473
Applications of gyroscope in daily life
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19
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413
Equipotential surfaces for an electric dipole
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25
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399
Finding Absolute Uncertainty in Data
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8
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344
Finding efficiency of an engine (with attempt)
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5
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372
Series-Parallel Circuits (R/2R Ladder Networks)
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7
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290
Help with derivation of Malus' Law
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5
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307
Question about the 2nd law of thermodynamics (heat loss)
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1
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271
Circular Motion - Newton's Second Law: Bead on a Rotating Hoop
2
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39
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917
External forces required to move an electric dipole quasi-statically
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14
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317
Calculating Train Deceleration: Kid's Free Fall Time
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5
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327
Einstein relativity between 2 coordinates systems
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3
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269
Calculating electric charge from graph (capacitor)
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3
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275
Tipping Point of Stationary Barbell
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2
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230
Change in Energy
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3
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345
Determine the moment of the force about point O
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7
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343
Understanding Voltage Drop in a Circuit
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10
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394
My Mistake? Understanding Friction Force & Work Done on Snowy & Icy Surfaces
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29
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466
Finding max velocity for a kart on a circular, banked track
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2
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346
What is the pressure difference?
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7
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451
Current in a circuit without external resistance
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8
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327
Experimentally calculating the acceleration due to gravity
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13
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378
Electromagnetism: Moving conductor and EMF
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18
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381
Determine the signs of ∆H, ∆G, ∆S for the reaction: N2(g) → 2N(g)
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1
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288
Solving for Speed & Revolution: F * delta t = p
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13
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365
Voltage Variation w/ Variable Resistor: Correct?
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4
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278
Newton’s laws of motion -- Does the 1st Law presuppose the 2nd Law?
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3
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291
How to find coefficient of friction of a body sliding down the slope?
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7
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367
Deriving general specific heat capacity formula
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8
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283
Closed path term in Thermodynamics
2
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38
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906
A planet of mass M and an object of mass m
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6
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312
Pulling a yoyo over a surface with tension
2
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36
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659
Magnetic field force between two perpendicular wires
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1
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289
Net Torque Within a Mass and Pulley System
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22
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404
Energy with varying force
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7
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292
Violation of 2nd Law of Thermodynamics
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5
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340
Change in internal energy
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1
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292
what are the forces on a cell in a tree vs on the surface of a tree
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4
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300
Pressure inside a water drop
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2
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269
Raman spectroscopy problem
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7
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360
Extended essay help
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8
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303
Mechanical Physics: Coefficient of Friction
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20
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635
Newton's Third Law?
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15
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476
Determining Radius from Magnetic Field of a Single-Wire Loop
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4
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310
Concave mirror reflecting a point lamp, that create a wider beam
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22
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378
Newton's First Law to explain Washing Machine Spin Cycle
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23
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503
The final velocity of a ball rolling while slipping.
2
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40
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716
Three Phase Per Unit System - Mark up, represent as single phase equiv
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1
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255
Solving the Basic Mechanics Bullet Block Collision Problem
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4
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286
Finding how much heat released by evaporation of water
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4
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309
Understanding the energy of a dipole in a uniform electric field
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2
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304
I need help with Nuclear reaction equations
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4
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300
Rolling coin with point mass
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14
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445
Rise of Liquid from Horizontal Acceleration
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3
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295
Ratio of atomic masses of two ideal gases
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7
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372

Intro Physics Homework Help

Welcome to the Intro Physics Homework forum!

Get introductory physics homework help, step by step from mentors. We do not give answers but guide you to it with your effort.

This is for algebra and calculus based general physics homework. Usually this is high school and undergraduate level problems.

Please use the template when asking for help, include all information and provide a reasonable attempt at a solution.

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