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.
Particle confined in 3D box - quantum states
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5
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307
How to Calculate θ3 After Finding θ2 Using Snell's Law?
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9
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176
Electric field vector equation: Finding the neutral point for two charges
2
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35
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349
Find number of microstates of combined system
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22
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361
Experiment measuring the distance dependence of a suspended metal bolt from a magnet
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13
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250
Induction confusion for induced charge inside a metal conductor
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23
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306
Significant figures doubt
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3
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177
What would the slope of the force between 2 charged particles vs 1/r^2 give me?
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1
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169
Gauss' law and the potential V (plane layer case)
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7
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243
Water flowing out of a rotating vessel
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30
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249
Using Kepler's laws to calculate elliptical planetary motion
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7
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216
Help with Friction Forces: Box resting on a board on a frictionless surface
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5
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222
What is the unknown circuit element in RLC circuit given plot of V, I?
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4
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202
Find at what rate the orbit radius will grow
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30
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588
Initial velocity of rolling ball
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4K
Did my textbook make a mistake when writing these units?
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5
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251
Confusion Calculating Young's Modulus
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4
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234
Fresnel Lens - Solve for Lithography & Power
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0
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148
Physics about electric circuits: Changing the resistors changes the currents
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3
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185
Thermodynamic Work vs Mechanical Work
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3
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162
Classic Incline problem with cylinder
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13
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251
Using conservation of energy and momentum in projectile motion
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18
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271
Torque calculation of CV joint
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2
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225
Lagrange equation for block and incline
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13
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238
Fundamental quantities and derived quantities
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184
Projectile Motion Problem Involving Initial Velocity and Gravity Only
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11
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289
Cart sliding along horizontal with spring connected
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11
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194
Does the voltage across a battery include its internal resistance?
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8
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238
Calculate electric force using Coulomb's law (vector components are the struggle)
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3
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187
Two tourists and a bicycle - uniform motion
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25
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456
How many people can be on the raft?
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10
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225
Find the magnetic induction vector
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3
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189
Blowing Into Your Own Sail
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25
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310
Drag Forces and Terminal Velocity
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8
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204
Why the need to be careful opening a switch on this RL circuit?
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6
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220
Ratio of frequency between heavier and lighter part of composite cord
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4
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160
Need help, to help, a friend with their HW (High School)
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6
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186
Current in circular wire surrounding infinite solenoid in a circuit
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7
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217
Determining the sound level of a leaf blower
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1
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150
Average velocity in different coordinate systems
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27
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346
GRIN Lens - Gradient Coefficient Expression
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5
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205
Help please on essay about star formation
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5
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218
Torque on a Pivot Point With Multiple Forces and Different Directions
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6
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223
Variation of escape velocity with equal surface gravity
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7
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197
How to calculate gamma ray energies following beta decay?
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12
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218
Minimum force to tip the bin over
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7
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195
Depth of a basketball floating on water
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9
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244
Keplerian Telescope and real image
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7
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200
Concept about photoelectric effect
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17
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429
Dynamic system of self balancing robot
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4
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212
Max inversion temperature for a gas (Dieterici’s equation of state)
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4
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337
Closed cycle of an ideal gas
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3
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236
Why is the tension in a massive cable always tangent to its portion?
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5
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1K
How can I maximise the exit velocity of an object catapulted up?
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2
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204
Statistical mechanics: particles in magnetic fields
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2
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192
Calculating Magnetic Field at Point P for Perpendicular Current-Carrying Wires
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2
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188
Calculation of Ramp Jump Distance Using Projectile Motion Formulas?
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12
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195
Help with designing a power generating system
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3
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182
Max Impulse on a pendulum
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1
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167
Angle that makes kinetic and potential energy of simple pendulum equal
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2
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225
Introduce a battery to an LR circuit
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16
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300
Planar pendulum with rotating pivot
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7
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159
Lagrangian of a block on an inclined plane
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15
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223
Sheet of charge - theory
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1
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151
Cables, pulleys, 2 weights
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4
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225
Balmer series experiment
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2
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221
Spherical pendulum confusion [Issue resolved]
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2
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167
Launch service between two stations along a flowing river
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21
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260
Book plots position & force on the same graph, still gets right answer
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8
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261
Why is source force + electrostatic force = 0 inside battery?
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10
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323
Relativistic motion and length contraction
2
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44
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621
Circular motion doubt: Angular velocity vector for general planar motion about a point in the plane
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6
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202
Critical frequency of Faraday Waves?
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6
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380
Find starting velocity from golfer launching ball
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7
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238
Why is the electric field inside a conducting hollow/filled sphere zero?
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2
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174
Slope of N - t graph of radioactive decay
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2
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185
Question about Feynman diagram showing annihilation
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4
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222
Coupled oscillator question
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2
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176
Tension in a Two-Crate System on a Frictionless Surface
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7
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195
Forces at play in a pendulum (conceptual doubt)
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7
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239
How do I fix the signs in Faraday's Law in RL Circuit?
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5
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237
Resistivity calculation from two-probe resistance measurement of sheet
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2
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169
Simple pendulum with moving support
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4
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202
Change in the unit vectors
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10
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199
Coupled pendulum-spring system
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3
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183
Field transformations in the z-direction
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7
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1K
Pendulum attached to a rotating vertical disk
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2
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207
The value of the spring constant k that I calculate seems too high
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11
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256
Understanding the math of definition of electromotive force
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1
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193
Length of string in a standing wave
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19
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443
Field due to an electric dipole (Halliday & Resnick, Ch. 27 problem 23)
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3
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146
Understanding a very simply RL circuit
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1
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190
Small oscillations of a simple pendulum placed on a moving block
3
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73
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1K
Lab Exercise: Measuring "g" using Conservation of Energy
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12
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220
Kinematics problem from a competition: Will the 2 sliding boxes collide?
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6
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266
Flashing light beacon from Earth reaching spaceship moving away at 0.75c
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5
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240
Rolling Sphere On Incline
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1
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182
Block sliding on a semicircular track with friction
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10
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296
The maximum reversible work in thermodynamics (2)
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1
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211
Formula derivation connecting vertical water flowrate & horizontal distance moved by a suspended sphere
6
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207
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4K

Intro Physics Homework Help

Introductory Physics Homework Help is a service that assists students in their assignments related to the fundamental principles of physics at the introductory level.

This support involves elucidating key concepts such as mechanics, electromagnetism, thermodynamics, and optics. Tutors or resources providing introductory physics homework help aim to aid students in problem-solving, understanding theoretical foundations, and applying mathematical techniques.

By offering explanations, examples, and guidance on physics problems, this service helps students grasp the basic principles of the subject, fostering a solid foundation for more advanced physics studies.

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