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.
Coulomb’s Law Problem: Electrostatic Forces Between Charges
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6
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812
Calculating flux through a plane cutting two concentric cylinders
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26
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1K
Identical cones rotating while in contact with each other
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12
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1K
Ford Nucleon -- Fission Powered Car Calculation
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3
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643
Collision between snooker balls
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3
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751
Introductory Physics: Connection of Resistors ...
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15
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869
Friction on a spinning wheel when it is dropped onto the ground
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30
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1K
Frequency to wavelength question (thermal Doppler broadening)
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3
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724
Working out the accelerations in a double Atwood pulley system
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22
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1K
Acceleration of a Block Sliding Down a Wedge
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3
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842
Calculating velocity of a particle if distances are constant
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11
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1K
How to find motional emf w/o an equation for mag field?
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7
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701
Calculating the voltage across capacitors and resistors with switches
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2
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772
Find V-I characteristic for this circuit with ideal diode
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2
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1K
Purcell Electromagnetism p.301-303: "the longitudinal current I flows, in effect, on the cylinder itself"?
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1
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774
Acceleration of the midpoint of a light rod
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3
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819
Work Done in slowly pulling a thread
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28
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1K
Field of contact forces
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6
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964
Determine the Thevenin equivalent circuit
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2
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2K
Angular Momentum Problem: Mouse walking on a rotating turntable
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5
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1K
Earthing of two parallel conducting plates
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11
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1K
Purcell 1.77 Electron jelly
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2
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861
How can voltage between unlike charges decrease with proximity?
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4
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792
Wave interference, "beats" problem
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19
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1K
Aerodynamics of a helicopter blade
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4
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916
Which pairs of these diagrams represent equivalent circuits?
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4
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798
I want to know if the sketch I've drawn of the catenary suits the exercise
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11
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1K
Trying to study for my exam but got stuck on exercise
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7
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918
Direction and magnitude of electric field produced by current change
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8
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1K
Average battery current in battery charger
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7
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945
Electrostatics: Gauss' Law Problem Finding the Flux through a Conducting Spherical Shell
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9
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2K
Questions about a capacitor with 4 parallel plates
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14
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1K
Drop of voltage between terminals while conductive rod is rotating
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5
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884
Motion puzzle: Bird flying between a train and a platform
2
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84
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4K
Debugging a Kelvin Water Dropper
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10
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1K
Electric displacement field density equation
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1
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820
Calculating of currents in a circuit
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2
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727
Force to move a 24 tonne truck one foot in one second
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10
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1K
Why does the propagation constant in the Helmholtz equation include j?
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3
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898
Record Player Physics
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7
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1K
Dielectric boundary value problems
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2
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818
Polarisation of dielectric materials
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5
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731
Capacitors, equipotentials, and electric fields
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5
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950
How do you calculate the pull of this piston?
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27
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1K
Coin sliding on a table slides across an expanding fabric tape
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1
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716
Combined tensions of an RLC series circuit with AC current
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3
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885
Terminal velocity and acceleration
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7
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907
Clarifying the Definition Total/Stagnation Pressure (p₀) in Bernoulli'
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2
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949
A particle's momentum in a magnetic field
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3
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946
The energy needed to construct a charged hollow spherical shell with finite thickness
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1
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768
Calculation of charge flowing through a loop
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7
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837
Height of the image of my friend on the film
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2
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711
Focal length of the lens
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1
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648
Drone dragging a hose behind it
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24
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1K
Torque biomechanics
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6
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2K
(Answer check) for a work problem
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3
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705
Question related two different ways to do solution
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1
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653
CO2-powered metric racer car competition | help please?
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14
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1K
Force acting on one side of a fluid
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22
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1K
Coefficient of Restitution for a Hypothetical Collision where masses are not equal after the collision compared to before the collision
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6
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1K
Confusion regarding surface tension direction and force balance
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39
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2K
Convert to Center of Mass Reference Frame
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9
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1K
How far from the point of release will the ball hit the ground?
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16
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859
Irodov 1.23 confusion: Calculate distance traveled and time elapsed for this decelerating particle
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2
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861
What is force? How can we interpret the full definition of force?
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6
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830
Calculate velocities in COM reference frame for 2D collision
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27
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1K
Inclined plane problem
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13
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1K
AP physics 2: Phase change in thin film interference
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1
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780
Calculate the speed and angle of the center of mass before a collision
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3
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909
Mastering physics homework: Mass oscillating on a vertical spring
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2
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706
Friction direction change in a inclined circular bend (car on a road)
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11
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1K
Induced current and force on circular loop in varying magnetic field
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4
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1K
Problem on Radiation Pressure
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33
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1K
Quick Physics Questions I found online and need explanations solving
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10
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798
Calculate the energy transferred given the voltage, current and time
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5
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744
This 3 mass atwood problem is confusing me
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4
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947
Left-to-Right Wave — How Does Particle X Move?
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23
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923
Computing the moment of inertia for a rotary inverted pendulum
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5
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839
Ball on a string thrown around a spool
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3
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878
Network Analysis, Kirchhoff's Laws, changing current source to voltage
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4
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1K
Graphs of RC Circuit Responses
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3
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939
The problem of one tube and two balls on a plane
2
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60
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2K
Calculating the Forces on a Charge
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7
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817
Ambiguous Problem Statement on Determining Speed of Aircraft
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13
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2K
How does a transistor act as an amplifier?
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6
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831
How do I find the intersection of the wrench's LOA?
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4
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1K
Momentum: why don't the two carts become one?
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32
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1K
How to calculate the errors in the measured period of a pendulum?
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6
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745
Series and Parallel Circuits using symmetry
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10
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836
How is the slider connected to the switch?
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6
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805
Thermal expansion of a glass rod and a metal ruler
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8
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811
A problem from a physics national competition
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13
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1K
Change in entropy of the surroundings in an irreversible process
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14
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986
Surface current of superconducting sphere in magnetic field
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1
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830
Force of car pushing on a truck
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25
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1K
Force needed to raise a backpack
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1
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773
Uniform circular motion angle relationship
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6
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651
Simulating a Rotary Inverted Pendulum in Python
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15
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1K
Pressure of water coming out of a hose nozzle
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7
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984
Focal length of the eyepiece lens in a compound microscope
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7
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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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