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.
Calculating the sum of displacement vectors
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A problem about the laws of conservation: Bullet colliding with a wood block
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28
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Force on a point charge near a uniformly charged rod
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3
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Two rods with fixed angle, find the velocity of the crossing point
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1
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Stumped on mathematical proof
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13
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633
A 50 cubic foot tank contains saturated 134a at 100F and a quality of 50%
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11
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938
How can "work" done by a force be negative?
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Torque that a grounded infinite sheet exerts on a dipole
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11
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1K
Two tanks are connected by a valve and line
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837
Spring launcher firing steel balls
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2
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636
Circular motion question: Mass on a rod rotating in a vertical circle
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909
Calculating Motor Force & Torque
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836
Bead on a rod which is being pulled by an ideal string with velocity v
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27
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Appliance plug connected wrongly: live neutral earth
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13
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691
Finding the direction of forces
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656
Finding parallel or in-series resistors
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708
Help needed on mass-energy equivalence
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772
Momentum: instantaneous or average?
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1K
Derivation process of Selection Rule of hydrogenic atom
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517
A question about the perpendicular vector
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2
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528
Trouble understanding frames in relativity
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4
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827
Why does the PE of particles during steam condensation decrease?
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14
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976
Torque on a sign hung by a hinge
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624
Acceleration of a ball at its max height after being thrown upwards
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11
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725
Oscillation of fluids in a U tube
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1K
A microwave oven of mass 13.0kg is pushed a distance 8.80m up a ramp
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2
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651
Free-body diagram: Spring-loaded cylinder sliding on a metal rod
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34
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1K
A 2.8-kg block slides over the smooth icy hill -- Find the minimum speed to clear the pit
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750
A household fridge removes heat, determine power the fridge draws
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8
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974
Find h in the problem involving a stone thrown upwards
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5
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576
Voltage-resistance graph for this circuit with a variable resistance
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4
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674
Work done by a balloon that is rising
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774
Coefficient of friction of a sandwiched body
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15
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Kinematics, is this a poorly worded question?
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7
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839
Efficiency of Stirling Cycle - Is it the same as the Carnot Engine?
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14
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1K
Circular motion and moment of inertia - circle loop
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29
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1K
Pressure question: Weight of a car calculated from tyre contact patch area
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3
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901
Ionic thruster high school science project
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2
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698
Rolling without Slipping Demo
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8
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964
RCL series circuit analysis: Damping Constant
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1
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673
Electric field of a charged disc with a small circle cut out of it
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9
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757
Block tied to a fixed string on an accelerating wedge
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37
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2K
Use of imaginary charge vs Gauss' law
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12
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954
Relation between the velocity vector and the acceleration vector of an object
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1
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696
Issue deriving the third law of thermodynamics
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11
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1K
First Law of Thermo: Audience body heat warming a concert hall
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25
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1K
Rotational Dynamics problem with instantaneous frame of reference
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6
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722
Distribution of Energy when work is done on a system of 2 masses connected by a spring
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17
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2K
What Does -∂V/∂x Represent in Newton's Law?
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How to approach this question using SUVAT equations?
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745
Confused about kinematic equations
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20
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2K
What is the relationship between tire size and pressure changes?
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13
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982
Moment of Inertia of Solid Sphere - Proof
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3
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5K
Reading of Ammeter for this circuit with Voltage Controlled Resistors
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9
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1K
Relation between Friction, Velocity, and Acceleration
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16
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990
Is this statement acceptable? (time derivative of a rotating vector)
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4
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683
Entropy Change For Van Der Waals Gas
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5
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598
Maximum Power dissipated at load resistor
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3
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952
Poiseuille law and friction force help
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5
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595
Reversible, adiabatic expansion - Entropy Change
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710
Linear momentum but quadratic kinetic energy?
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4
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516
Are there two downward forces acting on the pivot of the rotating rod?
2
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3K
Thermodynamics: Violating Clausius => Violating Kelvin
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10
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751
The motion of a skateboarder along and above a ramp
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2
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598
Deriving the particle's motion using numerical integration
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701
Circular motion, coin on a rotating disk
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2
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777
Angular velocity- A toy train rolls around a horizontal track
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8
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767
Energy stored in the steady state circuit
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7
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701
Solving Kinematics Problem: V_o & Max Height
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2K
Additivity of thermodynamic potentials?
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1
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486
Two Forces Acting Simultaneously
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6
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761
Electric field of a finite linear distribution of charge
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18
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1K
Conversion factor when converting from SI to natural units
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842
How do I calculate forces in a truss cross section?
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2
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620
Clausius' Theorem and Entropy
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782
Circular argument? Justification of equipotential points
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16
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834
Is My Calculation of Work Along a Defined Curve Correct?
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4
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687
Thermodynamics of a Heat Engine - (First/Second Law)
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2
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595
Finding the distance of a peg so that a pendulum can circle around it
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2
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939
Energy of springs connected in series and parallel
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13
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978
The specific work done on an ideal gas during an adiabatic process in a piston-cylinder system
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13
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957
Relative electrical energy consumption for different light bulb color temperatures
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3
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632
Frequency of Reflected light in special relativity
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1
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529
Confusion about work done by a gas - Thermodynamics
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15
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1K
Thermal exchange between warm object and ideal gas
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2
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795
Thermodynamics: Two gases in a container
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612
Show that the radius of the exoplanet is about 1/2 of Earth’s radius
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2
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795
Total Energy vs Average Energy (Thermo)
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11
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885
Electric flux from line charge through plane strip
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7
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6K
Investigation into electric guitar pickups
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4
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Electric field created by point charges
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6
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815
Confusion about applying Faraday's law to a circuit
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3
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883
What's the energy stored in a parallel plate capacitor?
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14
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Mass Pulley and torque -- Confusion in this Atwood machine problem
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11
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974
Derive Gravitational Force and Field between two identical rods
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449
A particle slides down a non-fixed hemisphere
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3
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763
Two spring-coupled masses in an electric field (one of the masses is charged)
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1
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918
Find the equivalent resistance of this circuit
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31
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How Do I Draw a Decay Scheme in Radiochemistry?
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653
Determine the type of measurement by classification
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2
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518

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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