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.
How do you Calculate Ampacity of a Conductor Geometry?
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A little annoying doubt -- Initial vertical speed of a jumping flea
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Calculate the Acceleration of this Car
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Two ropes pulling on a cylinder that is translating and rotating on a plane
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Optical path difference between two reflected rays
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772
Why is the Celsius symbol not placed on the Kelvin unit?
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Comparing weights of balloons
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projectile motion problem with no initial velocity given
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791
Calculate the Capacitance given the Charge and Potential Difference
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719
How to solve this problem in sinusoidal motion? (Satellite orbiting the Earth)
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726
Kinematics in multiple frames
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Clarify definition of measurement
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771
Direction of oscillations of a polarised light wave
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Find the height of a lamp based on the velocities of projectiles
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Velocity of a water jet exiting a water tank drain tube
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Electric Field Flux Question
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830
Static equilibrium | Uniform sphere on incline | Determining friction
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Energy Changes in Capacitor After Disconnecting from Battery
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Entropy of a sealed room with an open-door refrigerator
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992
Diffraction pattern from a grating
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3
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935
Question About Induced Currents in Three Different Coils
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10
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889
Is this question solvable by resolution of forces?
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Need my mind refreshed on geometry
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852
Kinematics problem involving multiple frames
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6
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837
Why do water streams get thinner as they fall?
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Differential Equation of a Pendulum
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Time taken to slide down a circular path (with friction)
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Block sliding on vertical track with friction (Solved problem)
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Which of these rods are in equilibrium?
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Uncertainties For Wave Packets
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Separation of variables: Wave equation governing a string with fixed ends
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8
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Interpretation of Negative Time in Minkowski Diagram
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840
Order of events in a train traveling at v = 0.76c
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Physics Exam Preparation: General question about auxiliary quantity and linearization of a function in physics
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Velocity vectors; arrow length
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3
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945
Electrical Circuits - Parallel vs. Series
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14
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Frequency of pendulum in the presence of electric field
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Electrostatic force on a test charge by uniformly charged annular disc
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755
Energy stores and transfer on a rollercoaster
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Truck accelerating down a ramp
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10
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Question about Momentum and torque
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10
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Spring scale tension
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Torque acting on dipole
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Leakage of Air in a Spacecraft
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Simulation of Elastic Collisions
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Charge separation of O-H bond in water molecule?
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Resonant frequency of L - R||C circuit
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Which one is a correct statement about oscillation?
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Why doesn’t my electric motor work?
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700
Scientific inference skill
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4
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Find speed of CoM after collision between ball and "square structure"
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How to make a motor for an assignment
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Doubts on Diodes: Circuit Solving
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Dimension Analysis -Turkey Cooking
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Finding oscillation of SHM of this rod, mass and spring
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Upside Down Paper-Glass Water Experiment
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How to read spacetime (Minkowski) diagram for proper length
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Velocity required to escape the solar system
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How do you calculate the margin of error in Physics?
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Simple harmonic motion question
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Gauss' Law for Non-Uniform electric fields
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If closed integral of E.dS is zero over a surface, then...?
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Gauss' law: Cause and effect relationship on the flux
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No Electric Charges if No Electric Field in Region
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Least Square Method to fit a line to a set of datapoints
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How to Calculate Center of Pressure (hf) for a Tank?
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Maximum electric field from a blob
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Maximum tension in thread connecting loads
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What frequency will the bat hear?
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Work done by gravity on a hanging chain?
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Tension in a supporting thread after a second supporting thread is cut
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Entropy Change Confusion
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Hot air balloon question with bouyancy
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Pulley Problem on an Inclined Surface Using Energy Methods
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What is the tension in a charged ring?
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Pseudo Forces on a Mass in a Groove on a Rotating Disc
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Vertical Wall approaching Man - Impulse and Momentum Conservation
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How to calculate the moment of inertia of a rectangular cuboid?
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Potential energy of an electrostatic system in equilibrium
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Gauss' Law: Conductor, Insulator, Electric Field
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Ambiguous question on momentum and how it works...
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Find the work done by a spring using potential energy considerations
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Relationship between pressure and temperature for liquids
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Archived Displacement and Momentum, particle in cathode ray tube with variables
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IBDP Extended Essay Ideas -- Help please
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Calculating Oscillation Period and Spring Energy in a Three-Mass System
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Electric Field of a Toroid carrying a changing current I = kt on axis
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Pulley system problem: 6 Pulleys and 1 Mass
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Signs in torque - different analyses using different sign notations?
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Why is the slope steeper in the given diagram?
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Are the 2nd and 3rd problems in this video correctly solved? (charged dipole and organ pipe problems)
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Mirror placed horizontally between two half convex lenses
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Billiard Ball, Conservation of Angular Momentum, Force below CM point
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Two vertical bars are connected at the bottom via resistance......
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What average power does the boy need to produce?
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Projectile motion of two balls off a cliff
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Focussing a collimated beam using a diffraction grating
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Vertical spring & maximum length
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Lens Maker's Formula - Confusion in the derivation
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Energy of particle in simple harmonic motion
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