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.
Is it possible to measure SQRT(2) kg with a scale?
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640
Trying to understand the relationships between Forces, Mass and Inertia
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10
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950
What would the voltmeters measure?
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7
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629
Siren frequency heard by observer when an ambulance passes
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26
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1K
How to solve this kind of problem? (Mechanics Theory)
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16
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1K
Energy in simple harmonic motion--car problem
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4
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720
Why am I calculating the unknown mass of ice incorrectly?
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22
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977
Question about absorption line spectra
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21
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1K
What does it mean that when light is reflected the "wavelengths of each contributing hue are subtracted"?
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16
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1K
Newton's 3rd Law of Motion: Is the Punching Bag punching back?
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4
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802
Oscillatory motion problem: Bicycle wheel rotation oscillation
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17
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988
Pressure versus stress in uniformly charged sphere
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11
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1K
Doubts on Diodes -- Why is voltage shifted by 0.7V?
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7
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2K
Angular Momentum Conservation | Velocity at perigee
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8
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792
Circuit with time varying current
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10
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880
Determining the Change in Bulb Brightness by Changing Circuit
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6
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1K
What does the middle of a chain on a pulley mean?
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9
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820
Constant acceleration problem: Dog chasing a surprised cat
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13
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963
Two bars connected by a spring on a floor with friction
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37
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1K
The derivative of the dot product "distributes" over each vector
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718
Calculating the sum of displacement vectors
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5
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774
A problem about the laws of conservation: Bullet colliding with a wood block
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28
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1K
Force on a point charge near a uniformly charged rod
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3
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1K
Two rods with fixed angle, find the velocity of the crossing point
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1
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650
Stumped on mathematical proof
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13
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655
A 50 cubic foot tank contains saturated 134a at 100F and a quality of 50%
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11
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999
How can "work" done by a force be negative?
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19
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1K
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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4
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874
Spring launcher firing steel balls
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2
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656
Circular motion question: Mass on a rod rotating in a vertical circle
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4
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934
Calculating Motor Force & Torque
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9
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866
Bead on a rod which is being pulled by an ideal string with velocity v
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27
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1K
Appliance plug connected wrongly: live neutral earth
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13
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731
Finding the direction of forces
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5
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680
Finding parallel or in-series resistors
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3
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727
Help needed on mass-energy equivalence
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7
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800
Momentum: instantaneous or average?
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9
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1K
Derivation process of Selection Rule of hydrogenic atom
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1
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537
A question about the perpendicular vector
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2
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547
Trouble understanding frames in relativity
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4
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850
Why does the PE of particles during steam condensation decrease?
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14
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1K
Torque on a sign hung by a hinge
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3
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647
Acceleration of a ball at its max height after being thrown upwards
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11
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749
Oscillation of fluids in a U tube
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17
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2K
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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679
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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1
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775
A household fridge removes heat, determine power the fridge draws
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8
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1K
Find h in the problem involving a stone thrown upwards
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5
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592
Voltage-resistance graph for this circuit with a variable resistance
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4
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703
Work done by a balloon that is rising
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8
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800
Coefficient of friction of a sandwiched body
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15
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884
Kinematics, is this a poorly worded question?
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7
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864
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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924
Ionic thruster high school science project
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2
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720
Rolling without Slipping Demo
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8
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995
RCL series circuit analysis: Damping Constant
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1
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697
Electric field of a charged disc with a small circle cut out of it
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9
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778
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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980
Relation between the velocity vector and the acceleration vector of an object
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1
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717
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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745
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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2
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2K
How to approach this question using SUVAT equations?
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8
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768
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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1K
Moment of Inertia of Solid Sphere - Proof
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3
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6K
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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1K
Is this statement acceptable? (time derivative of a rotating vector)
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4
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702
Entropy Change For Van Der Waals Gas
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5
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620
Maximum Power dissipated at load resistor
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3
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981
Poiseuille law and friction force help
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5
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615
Reversible, adiabatic expansion - Entropy Change
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5
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729
Linear momentum but quadratic kinetic energy?
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4
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533
Are there two downward forces acting on the pivot of the rotating rod?
2
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67
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3K
Thermodynamics: Violating Clausius => Violating Kelvin
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10
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782
The motion of a skateboarder along and above a ramp
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2
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617
Deriving the particle's motion using numerical integration
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5
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718
Circular motion, coin on a rotating disk
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2
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794
Angular velocity- A toy train rolls around a horizontal track
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8
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795
Energy stored in the steady state circuit
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7
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734
Solving Kinematics Problem: V_o & Max Height
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7
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2K
Additivity of thermodynamic potentials?
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1
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497
Two Forces Acting Simultaneously
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6
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781
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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1
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875
How do I calculate forces in a truss cross section?
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2
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642
Clausius' Theorem and Entropy
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8
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811
Circular argument? Justification of equipotential points
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16
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872
Is My Calculation of Work Along a Defined Curve Correct?
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4
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708
Thermodynamics of a Heat Engine - (First/Second Law)
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2
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613
Finding the distance of a peg so that a pendulum can circle around it
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2
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972
Energy of springs connected in series and parallel
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13
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1K

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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