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.
Oscillatory motion problem: Bicycle wheel rotation oscillation
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17
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969
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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782
Circuit with time varying current
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10
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867
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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806
Constant acceleration problem: Dog chasing a surprised cat
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13
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934
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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5
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709
Calculating the sum of displacement vectors
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5
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765
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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990
Two rods with fixed angle, find the velocity of the crossing point
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1
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639
Stumped on mathematical proof
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13
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644
A 50 cubic foot tank contains saturated 134a at 100F and a quality of 50%
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11
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961
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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851
Spring launcher firing steel balls
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2
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646
Circular motion question: Mass on a rod rotating in a vertical circle
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4
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918
Calculating Motor Force & Torque
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9
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847
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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706
Finding the direction of forces
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5
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668
Finding parallel or in-series resistors
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3
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718
Help needed on mass-energy equivalence
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7
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783
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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526
A question about the perpendicular vector
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2
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535
Trouble understanding frames in relativity
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4
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835
Why does the PE of particles during steam condensation decrease?
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14
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992
Torque on a sign hung by a hinge
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3
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634
Acceleration of a ball at its max height after being thrown upwards
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11
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738
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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661
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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760
A household fridge removes heat, determine power the fridge draws
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8
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986
Find h in the problem involving a stone thrown upwards
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5
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583
Voltage-resistance graph for this circuit with a variable resistance
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4
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688
Work done by a balloon that is rising
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8
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787
Coefficient of friction of a sandwiched body
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15
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866
Kinematics, is this a poorly worded question?
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7
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852
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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910
Ionic thruster high school science project
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2
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713
Rolling without Slipping Demo
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8
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979
RCL series circuit analysis: Damping Constant
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1
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684
Electric field of a charged disc with a small circle cut out of it
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9
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767
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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968
Relation between the velocity vector and the acceleration vector of an object
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1
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704
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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729
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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759
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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994
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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1K
Is this statement acceptable? (time derivative of a rotating vector)
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4
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692
Entropy Change For Van Der Waals Gas
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5
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604
Maximum Power dissipated at load resistor
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3
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963
Poiseuille law and friction force help
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5
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605
Reversible, adiabatic expansion - Entropy Change
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5
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721
Linear momentum but quadratic kinetic energy?
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4
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522
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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766
The motion of a skateboarder along and above a ramp
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2
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606
Deriving the particle's motion using numerical integration
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5
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705
Circular motion, coin on a rotating disk
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2
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784
Angular velocity- A toy train rolls around a horizontal track
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8
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779
Energy stored in the steady state circuit
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7
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717
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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491
Two Forces Acting Simultaneously
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6
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770
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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858
How do I calculate forces in a truss cross section?
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2
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627
Clausius' Theorem and Entropy
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8
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800
Circular argument? Justification of equipotential points
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16
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853
Is My Calculation of Work Along a Defined Curve Correct?
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4
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696
Thermodynamics of a Heat Engine - (First/Second Law)
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2
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603
Finding the distance of a peg so that a pendulum can circle around it
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2
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953
Energy of springs connected in series and parallel
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13
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996
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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974
Relative electrical energy consumption for different light bulb color temperatures
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3
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642
Frequency of Reflected light in special relativity
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1
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535
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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802
Thermodynamics: Two gases in a container
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1
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618
Show that the radius of the exoplanet is about 1/2 of Earth’s radius
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2
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804
Total Energy vs Average Energy (Thermo)
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11
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900
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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3K

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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