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.
Direction of the normal force when acting on a tilted object
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Lateral pressure of a liquid exerted on a plunger
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Ceiling height for a game of Catch
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Cube with charges at each vertex
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Finding the Magnetic force on the coil
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How can I find the DC component of an Output Sinusoidal Voltage?
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Altering the shape of a flasks walls
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Sound waves affected by wind/sound waves in materials
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Hanging Spring with non-negligible mass is subjected to a driving force
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NTC thermistor heat dissapation calculation with graphs
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Problem with reflection and transmission of waves
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Inserting a charged plate into a capacitor
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Conservation of Energy in a System of Three Balls and Two Pulleys
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What Defines the Transition from Static to Kinetic Friction in Physics?
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How does the velocity of a ball change without buoyant force acting on it?
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Energy loss in simple harmonic motion causes the time period to shorten?
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18
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To find the resultant intensity
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15
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Thermodynamic identity (math) question: one component system
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6
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How Do You Calculate a Hohmann Transfer Orbit for a Mars Mission?
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How does this exponential decay formula get derived?
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7
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What is the definition of cathode in the photoelectric effect?
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"Distance" between events in uniformly moving and accelerating frames
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Where does the force of tension act on a box?
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Three conceptual questions on centripetal acceleration in a cone
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Rock climbing with forces along a "cam clamp" axle
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5
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How Do You Calculate Neutron Wavelength?
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Magnitude and direction of current
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What is the relationship between pressure and force inside a spherical object?
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Velocity due to known acceleration
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Dodgy solution for a thermodynamics problem?
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1
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How do magnetic fields behave in superposition?
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8
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How to solve current circuit problems without enough information?
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3
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Thermodynamics: internal energy and pressure
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3
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Parent needing help with a velocity question including air resistance
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28
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Contradictory statement in question?
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1
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584
Chocolate milk mechanics question
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1
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928
Calculation of Change in Magnetic Flux Linkage of a moving wire
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3
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Is the change in internal energy really a state function?
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4
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Average speed with constant acceleration over a period of time
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Stability of a floating cylinder
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7
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Improving Optics Accuracy with Digital Filtering and Ray Interpolation
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7
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1K
To find the angular momentum of a disc
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2
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4K
Trolley with a box sitting on top
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6
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What is the resultant frequency if two similar waves superpose?
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13
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What Is the Normal Force Acting On?
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A polygon is rolling down a hill
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Turkish Tubitak olympiads problems and solutions by Rafiq Abbasov
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26
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What Does the First Entropy Equation for a Permeable Membrane Indicate?
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3
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Calculating Equivalent Voltage in a Complex Circuit: Thevenin vs. Norton
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9
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Find the magnitude and direction of the Magnetic field required
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9
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How Does Gravitational Compression Generate Heat in Protostars?
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4
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Using nodal analysis to solve for current
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12
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Adiabatic expansion of a piston in a cylinder filled with ideal gas
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Solving for Electrical Potential Energy: Durcell's Example
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How can I find the velocity of a point on a disk rotating in a disc?
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16
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Easy entropy problem, what is the permitted entropy?
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Pressure generated by a force on a pump with a lever
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Frequency of sound received by an observer
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Attenuating floor oscillations with a cushion
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800
Multiple-Choice Questions on the Behaviour of Waves and Light 😁
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Two blocks kept side by side and friction between them
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How do we combine two waves to create Lissajous figures?
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Simplifying Complex Circuits: Using Delta to Y Transformation
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Current flowing in a battery is null?
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Finding velocity and position of ##a(t)=−\omega^2(C_1\cos\theta+C_2\sin\theta)##
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Why does the big block accelerate?
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Understanding Pascal's Law: Why is Force Greater in One Cylinder Than the Other?
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Why Does the Friction Force Not Match in the Two Block Problem?
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Calculate ##\vec{E}## of a single charge at a certain distance from it
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Two pulleys lifting a mass in parallel
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Shooting in a π/4 Angle: Is it Possible?
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Thermal energy/ heat in a parallel connection
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Flow rate of a pipe - calculation
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Calculation with this electric circuit (battery and resistors)
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Spring-mass system in circular motion has a maximum angular speed?
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Block on a wedge connected to pulleys
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How Does Balloon Volume Change During Ocean Descents?
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When is the rate of change of Kinetic Energy maximum here?
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Lenz law how to find dA/dT and O?
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4
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How Does Friction Affect System Movement?
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Trajectory of a mass element in a string overhanging a pulley
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Total Potential of a Ring at Point P
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How far from the mirror should the light source be positioned?
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Current in a current-carrying loop experiencing no torque
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How Does a Semi-Permeable Membrane Affect Entropy in a Two-Chamber Gas System?
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Why Does Kinetic Energy Increase More with Higher Initial Velocities?
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Changing of frequencies in the Doppler effect
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Ratio of acceleration of two solid cylinders released on two inclined planes
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Field of a Trianglular Solenoid
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Path/time function of a freesbie (the ride at amusement parks)
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Finding the current in Field winding
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Calculating Boiling Point of a Solution: A Joke Problem for Extra Credit
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A bit confused about significant figures
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Calculating the Force and Torque on a current loop
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Normalisation constants with ladder operators
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Spring constant matrix and normal modes (4 springs and 3 masses)
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Angular momentum: Grooved cone with a mass sliding down the groove
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Work & energy VS conservation of angular momentum
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Can Tension in a Whirling Rope be Modeled as a Centrifugal Force?
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Choosing proper coordinates in a complex 2 pulley system
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