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.
Spherical pendulum confusion [Issue resolved]
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150
Launch service between two stations along a flowing river
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21
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233
Book plots position & force on the same graph, still gets right answer
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8
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229
Why is source force + electrostatic force = 0 inside battery?
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10
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253
Relativistic motion and length contraction
2
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44
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529
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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177
Critical frequency of Faraday Waves?
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6
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336
Find starting velocity from golfer launching ball
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7
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209
Why is the electric field inside a conducting hollow/filled sphere zero?
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2
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133
Slope of N - t graph of radioactive decay
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2
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142
Question about Feynman diagram showing annihilation
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4
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187
Coupled oscillator question
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2
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146
Tension in a Two-Crate System on a Frictionless Surface
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7
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174
Forces at play in a pendulum (conceptual doubt)
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7
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206
How do I fix the signs in Faraday's Law in RL Circuit?
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5
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189
Resistivity calculation from two-probe resistance measurement of sheet
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2
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148
Simple pendulum with moving support
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167
change in the unit vectors
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10
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167
Coupled pendulum-spring system
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3
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146
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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167
The value of the spring constant k that I calculate seems too high
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11
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223
Understanding the math of definition of electromotive force
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1
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164
Length of string in a standing wave
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19
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403
Field due to an electric dipole (Halliday & Resnick, Ch. 27 problem 23)
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3
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130
Understanding a very simply RL circuit
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1
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156
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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198
Kinematics problem from a competition: Will the 2 sliding boxes collide?
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6
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247
Flashing light beacon from Earth reaching spaceship moving away at 0.75c
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5
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215
Rolling Sphere On Incline
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1
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148
Block sliding on a semicircular track with friction
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10
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254
The maximum reversible work in thermodynamics (2)
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1
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194
Formula derivation connecting vertical water flowrate & horizontal distance moved by a suspended sphere
6
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207
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3K
Impulse and momentum / work-energy
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5
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223
The maximum reversible work in thermodynamics
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22
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467
Do you graph the energy levels of a ##1s^1## atom the same as a ##1s^2## atom?
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12
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198
Magnetic dipole moment and integration surfaces (Introductory Electromagnetics - Magnetistatics)
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4
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179
Charge on a grounded conducting sphere in a uniform electric field, after ungrounding and movement
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1
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191
Conservation of momentum (center of mass) in projectile launches
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15
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311
Range of frequency heard by observer related to Doppler effect
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8
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224
Vertical displacement with time of a projectile
2
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48
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826
Spring Constant Force Problem Help
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12
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275
Is current flowing into a battery always equal to current flowing out?
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12
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257
Total Internal Reflection and Transmitted Wavelength
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1
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155
Understanding self-inductance in a solenoid.
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3
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182
Condition for resolution of two point sources of light
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2
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207
How does an eddy current brake work exactly?
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1
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257
How do I model this function? (Damped Harmonic Motion)
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19
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365
emf in coil rotating inside magnetic field
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3
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192
Refraction of light when traveling from air to glass
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6
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229
Ion moving through electric potential difference and magnetic field
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6
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201
Finding critical angle: not sure which one is correct
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13
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232
Origin of repulsive force on a magnet approaching conducting ring?
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5
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250
A wheel of radius r rolls along a curve
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13
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416
Electronic Circuits - Calculate voltage
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4
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368
Newton's third law and weight
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13
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263
Query related to Two-Dimensional Motion
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9
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261
Camera drone and speed of air below it
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5
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195
Graph of viscous force and velocity
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15
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241
Projectile motion, initial height and range given, find initial velocity
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8
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595
Need to derive a formula for the number of red giants
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8
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328
Question about time dilation
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22
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271
Derive trig equations 4, 5, and 6 from 1, 2, and 3
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13
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2K
Friction - same direction as motion?
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10
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339
Center of mass acceleration for an inclined plane and mass m
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18
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338
A jet problem -- How hard to pull back on the controls to avoid colliding with a hill?
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2
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187
How Does Coriolis Force Influence Particle Motion in Rotating Systems?
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3
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243
2 Masses attached by a spring in the vertical axis
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8
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263
Minimum work done to push the cube over
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14
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283
Gauss' Law for a conducting / non-conducting sheet
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5
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256
Feynman Diagram of Meson decay
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8
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248
Find the value of ##t## when ##P## returns to ##X##- Kinematics
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25
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1K
Find the tension in the rope PQ
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7
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209
How Do You Correctly Cancel Angular Momentum in Physics Problems?
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3
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246
Question about acceleration of free fall
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23
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379
Calculate voltage over capacitor and resistance
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7
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231
Solve the problem involving the velocity - time graph
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3
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202
Find in terms of ##h## when ##P## comes instantaneously to rest
2
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35
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644
Question about the energy of 2 blocks with a spring between them
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12
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235
How Is Work Calculated on a Conveyor Belt with Friction?
2
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53
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555
Find the initial velocity ##U##
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3
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176
How Does Energy Transform in a Bungee Jump?
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7
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167
2 Masses and a Wheel (with mass)
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6
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184
Horizontal force by block on a beam
2
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45
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602
Calculate the frequency of rotation when a coin flies off a turntable
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8
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231
Trouble solving for end state of two control volumes in a rigid tank
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12
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873
Help again in interpreting a pulley with a spring and a block
2
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52
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739
Find the value of ##T## and distance of particle in the first ##4## seconds
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2
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206
A small disk and a bigger half disk
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9
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203
Making sense of sequence of ideas in MIT OCW's 8.02 notes on Faraday
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1
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178
Rotating ball and string Rotational Kinetic Energy?
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6
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7K
Finding spring constant k based on diagram -- Don't understand how to interpret force as drawn
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5
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198
What is the induced magnetic force on this closed current loop?
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12
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244
Calculating the spring force constant K
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14
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372
Determining Inductance L in an LC Circuit
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5
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277
Power, force, velocity and tension...
2
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38
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492
How Do Power, Force, and Velocity Interact?
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14
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222
The ratio between two horizontal speeds in this pendulum arrangement
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1
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137
Inelastic collision of two squares
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14
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217

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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