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.
Gauss' law: Cause and effect relationship on the flux
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22
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983
No Electric Charges if No Electric Field in Region
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22
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2K
Least Square Method to fit a line to a set of datapoints
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11
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869
How to Calculate Center of Pressure (hf) for a Tank?
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1
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721
Maximum electric field from a blob
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7
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727
Maximum tension in thread connecting loads
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13
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1K
What frequency will the bat hear?
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15
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922
Work done by gravity on a hanging chain?
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22
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1K
Tension in a supporting thread after a second supporting thread is cut
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16
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806
Entropy Change Confusion
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7
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871
Hot air balloon question with bouyancy
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5
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875
Pulley Problem on an Inclined Surface Using Energy Methods
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16
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1K
What is the tension in a charged ring?
3
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12K
Pseudo Forces on a Mass in a Groove on a Rotating Disc
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5
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760
Vertical Wall approaching Man - Impulse and Momentum Conservation
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10
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933
How to calculate the moment of inertia of a rectangular cuboid?
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5
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823
Potential energy of an electrostatic system in equilibrium
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14
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1K
Gauss' Law: Conductor, Insulator, Electric Field
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7
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966
Ambiguous question on momentum and how it works...
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13
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1K
Find the work done by a spring using potential energy considerations
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4
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676
Relationship between pressure and temperature for liquids
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17
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3K
Archived Displacement and Momentum, particle in cathode ray tube with variables
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3
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5K
IBDP Extended Essay Ideas -- Help please
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2
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1K
Calculating Oscillation Period and Spring Energy in a Three-Mass System
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4
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712
Electric Field of a Toroid carrying a changing current I = kt on axis
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2
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795
Pulley system problem: 6 Pulleys and 1 Mass
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5
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863
Signs in torque - different analyses using different sign notations?
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11
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735
Why is the slope steeper in the given diagram?
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8
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886
Are the 2nd and 3rd problems in this video correctly solved? (charged dipole and organ pipe problems)
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3
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973
Mirror placed horizontally between two half convex lenses
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11
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1K
Billiard Ball, Conservation of Angular Momentum, Force below CM point
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6
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888
Two vertical bars are connected at the bottom via resistance......
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7
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977
What average power does the boy need to produce?
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12
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713
Projectile motion of two balls off a cliff
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4
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810
Focussing a collimated beam using a diffraction grating
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1
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659
Vertical spring & maximum length
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6
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975
Lens Maker's Formula - Confusion in the derivation
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15
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1K
Energy of particle in simple harmonic motion
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13
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1K
An ornament for a courtyard at a World's Fair is to be made up of four large metal spheres
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7
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821
Springs and Pulleys - Force analysis
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18
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1K
Confusion Calculating Young's Modulus
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5
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2K
Looking at the color vs line spectrum
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2
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565
How can I calculate the uncertainty of the mean with Gaussian error propagation?
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15
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873
How to show 400 neutrinos are present?
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2
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615
Change in apparent magnitude of a star after exploding
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3
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719
How do I correctly analyze the mass balance of a tractor seat?
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3
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629
Just looking for confirmation for a torque calculation
2
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60
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3K
I solved few questions on kinematics -- Is my working correct?
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10
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7K
Tension Question for Ship Container and Wind Gust
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12
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902
Pressure and temperature phase diagrams
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6
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676
Solving for Work Done When Accelerating a Mass
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3
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719
Question about springs and rotational/translational energy
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4
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1K
Question about Rutherford experiment: Which of these could not be concluded?
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12
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2K
Equilibrium problem: Multiple forces acting on this hinged, supported beam
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3
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1K
Freefall chord through the Earth -- calculus proof
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41
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2K
Find the coefficient of stiffness of this spring (with non-negligible mass)
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9
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759
Friction of a sliding mass on a slope
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4
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648
Is it possible to measure SQRT(2) kg with a scale?
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8
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603
Trying to understand the relationships between Forces, Mass and Inertia
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10
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881
What would the voltmeters measure?
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7
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577
Siren frequency heard by observer when an ambulance passes
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26
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950
How to solve this kind of problem? (Mechanics Theory)
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16
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966
Energy in simple harmonic motion--car problem
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4
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644
Why am I calculating the unknown mass of ice incorrectly?
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22
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882
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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739
Oscillatory motion problem: Bicycle wheel rotation oscillation
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17
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895
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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1K
Angular Momentum Conservation | Velocity at perigee
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8
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719
Circuit with time varying current
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10
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801
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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758
Constant acceleration problem: Dog chasing a surprised cat
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13
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855
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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671
Calculating the sum of displacement vectors
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5
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715
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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925
Two rods with fixed angle, find the velocity of the crossing point
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1
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582
Stumped on mathematical proof
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13
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594
A 50 cubic foot tank contains saturated 134a at 100F and a quality of 50%
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11
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897
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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945
Two tanks are connected by a valve and line
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4
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792
Spring launcher firing steel balls
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2
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598
Circular motion question: Mass on a rod rotating in a vertical circle
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4
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857
Calculating Motor Force & Torque
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9
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778
Bead on a rod which is being pulled by an ideal string with velocity v
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27
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939
Appliance plug connected wrongly: live neutral earth
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13
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663
Finding the direction of forces
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5
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602
Finding parallel or in-series resistors
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3
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668
Help needed on mass-energy equivalence
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7
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759
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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482
A question about the perpendicular vector
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2
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513
Trouble understanding frames in relativity
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4
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800
Why does the PE of particles during steam condensation decrease?
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14
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925
Torque on a sign hung by a hinge
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3
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586

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.

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