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.
Finding critical angle: not sure which one is correct
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200
Origin of repulsive force on a magnet approaching conducting ring?
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5
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220
A wheel of radius r rolls along a curve
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13
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359
Electronic Circuits - Calculate voltage
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4
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338
Newton's third law and weight
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13
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244
Query related to Two-Dimensional Motion
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9
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230
Camera drone and speed of air below it
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5
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168
Graph of viscous force and velocity
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15
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209
Projectile motion, initial height and range given, find initial velocity
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8
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570
Need to derive a formula for the number of red giants
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8
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295
Question about time dilation
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22
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238
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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298
Center of mass acceleration for an inclined plane and mass m
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18
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308
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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168
How Does Coriolis Force Influence Particle Motion in Rotating Systems?
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202
2 Masses attached by a spring in the vertical axis
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8
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241
Minimum work done to push the cube over
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14
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257
Gauss' Law for a conducting / non-conducting sheet
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5
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227
Feynman Diagram of Meson decay
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8
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222
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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188
How Do You Correctly Cancel Angular Momentum in Physics Problems?
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3
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223
Question about acceleration of free fall
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23
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349
Calculate voltage over capacitor and resistance
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7
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203
Solve the problem involving the velocity - time graph
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3
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170
Find in terms of ##h## when ##P## comes instantaneously to rest
2
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35
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597
Question about the energy of 2 blocks with a spring between them
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12
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211
Work done on a conveyor belt
2
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53
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483
Find the initial velocity ##U##
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3
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161
Bungee jumper: energy changes
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7
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142
2 Masses and a Wheel (with mass)
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6
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160
Horizontal force by block on a beam
2
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45
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543
Calculate the frequency of rotation when a coin flies off a turntable
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8
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198
Trouble solving for end state of two control volumes in a rigid tank
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12
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854
Help again in interpreting a pulley with a spring and a block
2
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52
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639
Find the value of ##T## and distance of particle in the first ##4## seconds
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2
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174
A small disk and a bigger half disk
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9
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184
Making sense of sequence of ideas in MIT OCW's 8.02 notes on Faraday
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1
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156
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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180
What is the induced magnetic force on this closed current loop?
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12
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206
Calculating the spring force constant K
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14
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355
Determining Inductance L in an LC Circuit
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5
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227
Power, force, velocity and tension...
2
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38
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445
How Do Power, Force, and Velocity Interact?
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14
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200
The ratio between two horizontal speeds in this pendulum arrangement
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1
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124
Inelastic collision of two squares
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14
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202
Two bodies connected with an elastic thread moving with friction
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6
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235
How to obtain correct negative sign in calculation of motional emf?
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2
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192
Normal force at the base of a ladder
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20
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326
How Does Spring Compression Relate to Energy Changes?
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4
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170
Arrow being fired to centre of target
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6
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149
Change in the kinetic energy of a car driving up a hill
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3
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185
Horizontal force on hinge is affected by moving the block farther away?
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11
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191
Need help interpreting a spring-block problem
2
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35
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568
Force components for mass attached to two springs
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15
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266
Molecular speed distribution - most probable speed V
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13
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237
Which way does this coil turn in a magnetic field?
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2
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165
Compare rotational inertia of 2 paper cups in 2 diff orientations
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12
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237
Are the Force Equations for Rotational Motion Accurate?
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24
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268
Particle projected from above a dome
2
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38
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538
Avg Power in a Rotational Energy/Work Problem
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6
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238
Centripetal force - Ferris wheel... Opposite results
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8
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236
Why Does Light Diminish with a Phase Difference of 5λ?
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6
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204
Rolling Disk: dynamics versus energy analysis
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9
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200
Please help with this physics experiment -- Water leaking out of inverted water bottle
2
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55
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938
What is the time taken by a pulse generated at the bottom of a string to reach the top?
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8
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312
Determine the velocity of a package dropped from a satellite
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6
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238
Finding force between solenoid and magnet
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2
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155
Elliptical motion in polar coordinates
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10
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266
Unpredicted axis of rotation
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5
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248
Cantilevered and line-loaded steel beam
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19
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395
Proving the gravitational force of a solid sphere using integration
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5
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194
Escape Velocity from Earth starting from its Centre
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27
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422
I solved few questions on kinematics -- Is my working correct?
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4
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5K
Why Is Deriving the Motion Formula for Hoops More Complex?
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4
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202
Electron motion on axis of a charged ring
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7
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188
Work energy theorem problem -- Block sliding up a curved incline
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10
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320
For a translating block with slipping find the maximum force F
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2
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156
Fundamental electrokinetics problem calculation using Ohm's Law
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4
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174
Direction of electric field vector on the surface of charged conductor
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9
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261
Rolling Motion (Stone Gets Stuck in a Tire Going Forward)
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10
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221
Resonance of a cube floating on water under external force
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8
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208
Verifying that Newton's Equations are equivalent to the EL equations
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15
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290
Coulomb's law and energy - potential energy
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5
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144
Velocities of four masses | Conservation of Momentum
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7
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207
How Does a Pulley System Affect Scale Readings?
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8
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174
Intensity of central maximum when width of single slit is doubled
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13
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430
Deriving ODEs for straight lines in polar coordinates for a given Lagrangian
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8
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237
Force on rectangular loop by a current in a long straight wire
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4
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277
Net magnetic force on circuit segment due to 2 parallel wires
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6
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244
Measurements Calculation Problem
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3
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194
A massless disk with an embedded particle rolls down an inclined plane
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17
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421
Torque question in Deltoid muscle
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7
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201
Is this projectile motion situation possible?
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6
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198
How did Cavendish find the density of the Earth?
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24
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497
Average momentum of an avalanche
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5
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169
Finding the constants of the general approximate solution to a double pendulum
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1
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142
Calculate the average force on the side walls of a container
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5
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283

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.

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