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.
Power dissipated over 1 cycle of a AC source-free RLC series circuit?
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6
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799
Angular momentum for a bullet and a rod attached to a ceiling
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17
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1K
Force Between 2 Coaxial Current-Carrying Loops
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4
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1K
How Long for a Beam of Light to Reach Earth?
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21
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1K
Particle confined in 3D box - quantum states
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5
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994
How to Calculate θ3 After Finding θ2 Using Snell's Law?
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9
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619
Electric field vector equation: Finding the neutral point for two charges
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35
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2K
Find number of microstates of combined system
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22
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1K
Experiment measuring the distance dependence of a suspended metal bolt from a magnet
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13
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914
Induction confusion for induced charge inside a metal conductor
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23
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973
Significant figures doubt
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3
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609
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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583
Gauss' law and the potential V (plane layer case)
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7
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803
Water flowing out of a rotating vessel
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30
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994
Using Kepler's laws to calculate elliptical planetary motion
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7
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1K
Help with Friction Forces: Box resting on a board on a frictionless surface
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5
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1K
What is the unknown circuit element in RLC circuit given plot of V, I?
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4
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832
Find at what rate the orbit radius will grow
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30
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2K
Initial velocity of rolling ball
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2
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5K
Did my textbook make a mistake when writing these units?
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5
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794
Fresnel Lens - Solve for Lithography & Power
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0
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567
Physics about electric circuits: Changing the resistors changes the currents
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3
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824
Thermodynamic Work vs Mechanical Work
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3
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948
Classic Incline problem with cylinder
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13
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1K
Using conservation of energy and momentum in projectile motion
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18
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1K
Torque calculation of CV joint
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2
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958
Lagrange equation for block and incline
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13
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1K
Fundamental quantities and derived quantities
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5
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615
Projectile Motion Problem Involving Initial Velocity and Gravity Only
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11
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1K
Cart sliding along horizontal with spring connected
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11
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768
Does the voltage across a battery include its internal resistance?
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8
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975
Calculate electric force using Coulomb's law (vector components are the struggle)
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3
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1K
Two tourists and a bicycle - uniform motion
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25
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1K
How many people can be on the raft?
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10
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872
Find the magnetic induction vector
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3
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764
Blowing Into Your Own Sail
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25
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1K
Drag Forces and Terminal Velocity
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8
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979
Why the need to be careful opening a switch on this RL circuit?
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6
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977
Ratio of frequency between heavier and lighter part of composite cord
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4
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658
Need help, to help, a friend with their HW (High School)
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6
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740
Current in circular wire surrounding infinite solenoid in a circuit
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7
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1K
Determining the sound level of a leaf blower
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1
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763
Average velocity in different coordinate systems
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27
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1K
GRIN Lens - Gradient Coefficient Expression
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5
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941
Help please on essay about star formation
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5
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945
Torque on a Pivot Point With Multiple Forces and Different Directions
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6
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2K
Variation of escape velocity with equal surface gravity
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7
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1K
How to calculate gamma ray energies following beta decay?
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12
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1K
Minimum force to tip the bin over
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7
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989
Depth of a basketball floating on water
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9
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917
Keplerian Telescope and real image
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7
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1K
Concept about photoelectric effect
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17
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1K
Dynamic system of self balancing robot
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4
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774
Max inversion temperature for a gas (Dieterici’s equation of state)
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4
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1K
Closed cycle of an ideal gas
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3
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1K
Why is the tension in a massive cable always tangent to its portion?
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5
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2K
Statistical mechanics: particles in magnetic fields
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2
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626
Calculating Magnetic Field at Point P for Perpendicular Current-Carrying Wires
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2
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1K
Calculation of Ramp Jump Distance Using Projectile Motion Formulas?
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12
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1K
Help with designing a power generating system
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3
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616
Max Impulse on a pendulum
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1
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832
Angle that makes kinetic and potential energy of simple pendulum equal
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2
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1K
Introduce a battery to an LR circuit
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16
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1K
Planar pendulum with rotating pivot
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7
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738
What Are the Assumptions and Calculations for Sheet of Charge Theory?
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1
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967
Cables, pulleys, 2 weights
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4
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663
Balmer series experiment
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2
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971
Spherical pendulum confusion [Issue resolved]
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2
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559
Launch service between two stations along a flowing river
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21
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1K
Book plots position & force on the same graph, still gets right answer
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8
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875
Why is source force + electrostatic force = 0 inside battery?
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10
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2K
Relativistic motion and length contraction
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44
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2K
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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766
Critical frequency of Faraday Waves?
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6
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1K
Find starting velocity from golfer launching ball
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7
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712
Why is the electric field inside a conducting hollow/filled sphere zero?
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2
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755
Slope of N - t graph of radioactive decay
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2
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774
Question about Feynman diagram showing annihilation
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4
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766
Coupled oscillator question
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2
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688
Tension in a Two-Crate System on a Frictionless Surface
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7
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764
Forces at play in a pendulum (conceptual doubt)
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7
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680
How do I fix the signs in Faraday's Law in RL Circuit?
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5
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1K
Resistivity calculation from two-probe resistance measurement of sheet
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2
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673
Simple pendulum with moving support
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4
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947
Change in the unit vectors
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10
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776
Coupled pendulum-spring system
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3
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846
Field transformations in the z-direction
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7
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2K
Pendulum attached to a rotating vertical disk
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2
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1K
The value of the spring constant k that I calculate seems too high
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11
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942
Understanding the math of definition of electromotive force
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1
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1K
Length of string in a standing wave
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19
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1K
Field due to an electric dipole (Halliday & Resnick, Ch. 27 problem 23)
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3
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515
Understanding a very simply RL circuit
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1
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811
Small oscillations of a simple pendulum placed on a moving block
2
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73
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4K
Lab Exercise: Measuring "g" using Conservation of Energy
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12
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911
Kinematics problem from a competition: Will the 2 sliding boxes collide?
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6
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732
Flashing light beacon from Earth reaching spaceship moving away at 0.75c
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5
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568
Rolling Sphere On Incline
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1
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756
Block sliding on a semicircular track with friction
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10
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2K
The maximum reversible work in thermodynamics (2)
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1
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727

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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