Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Why is the packing fraction important for transporting watermelons and oranges?
- aspodkfpo
- · Replies 6 ·
Levers, torque and the (non?) linear relationship
- hlock
- · Replies 2 ·
Position of the object and image in this optics problem
- PSN03
- · Replies 10 ·
Spring Force vs Height on a Trampoline
- aspodkfpo
- · Replies 10 ·
Question about a coupled system of pendulums
- LCSphysicist
- · Replies 16 ·
How does the negative feedback amplifier below work?
- Jy158654
- · Replies 7 ·
Fractional Errors: When to Use Raw vs. Fractional Values?
- aspodkfpo
- · Replies 8 ·
Length of a Wave Train in Special Relativity
- Mark Zhu
- · Replies 13 ·
What substitution/other method to use to solve this differential equation?
- Amit1011
- · Replies 16 ·
How to solve questions in pseudo force frames?
- burian
- · Replies 21 ·
Application of momentum conservation in inelastic collisions
- burian
- · Replies 28 ·
Torque and angular momentum with a central force
- fer Mnaj
- · Replies 1 ·
Basic problem involving forces (Kleppner/Kolenkow)
- AspiringPhysicist12
- · Replies 6 ·
What is the relationship between torque, linear force, and rolling resistance?
- aspodkfpo
- · Replies 13 ·
Weight of fluids on a submerged person?
- aspodkfpo
- · Replies 8 ·
Box with a jumper/blanket on top, cooling or heating?
- aspodkfpo
- · Replies 3 ·
Weird algebra and logic in a mechanics cart quesiton
- aspodkfpo
- · Replies 7 ·
Doppler effect and hydrogen alpha distributions
- aspodkfpo
- · Replies 3 ·
Forces at the bottom of a rotating U-tube filled with water
- PSN03
- · Replies 20 ·
Diffraction of light around slits forming shapes
- aspodkfpo
- · Replies 1 ·
Conservative forces vs friction
- Like Tony Stark
- · Replies 12 ·
Variation of a graph requiring a proportionality to hold
- aspodkfpo
- · Replies 4 ·
A blob question and a voltage question from the same physics paper
- aspodkfpo
- · Replies 6 ·
Launching a projectile to hit a target moving away from the launch point
- johnsmith122
- · Replies 3 ·
Please check my solution (pulling a dog in a toy wagon)
- Special One
- · Replies 4 ·
Why am I getting this weird equation between angle and time?
- Amit1011
- · Replies 26 ·
Special Relativity Math Thing (Fresnel's Drag Coefficient)
- Mark Zhu
- · Replies 4 ·
Moment of inertia of an isosceles triangle
- Nexus99
- · Replies 13 ·
Pressure force on curved surfaces: vertical component
- Est120
- · Replies 15 ·
Change in radius over time for a spherical ball formula
- aspodkfpo
- · Replies 1 ·
Does the tension in a string act on the body to which the pulley is attached?
- Hamiltonian
- · Replies 13 ·
Direction of the normal force when acting on a tilted object
- Like Tony Stark
- · Replies 9 ·
Lateral pressure of a liquid exerted on a plunger
- A13235378
- · Replies 2 ·
Ceiling height for a game of Catch
- Lukeblackhill
- · Replies 6 ·
Cube with charges at each vertex
- archaic
- · Replies 2 ·
Finding the Magnetic force on the coil
- Physicslearner500039
- · Replies 3 ·
How can I find the DC component of an Output Sinusoidal Voltage?
- Rongeet Banerjee
- · Replies 10 ·
Altering the shape of a flasks walls
- aspodkfpo
- · Replies 1 ·
Sound waves affected by wind/sound waves in materials
- aspodkfpo
- · Replies 13 ·
Hanging Spring with non-negligible mass is subjected to a driving force
- LCSphysicist
- · Replies 12 ·
NTC thermistor heat dissapation calculation with graphs
- theanswerai
- · Replies 4 ·
Problem with reflection and transmission of waves
- LCSphysicist
- · Replies 2 ·
Inserting a charged plate into a capacitor
- Kaguro
- · Replies 9 ·
Conservation of Energy in a System of Three Balls and Two Pulleys
- Nexus99
- · Replies 11 ·
What Defines the Transition from Static to Kinetic Friction in Physics?
- aspodkfpo
- · Replies 5 ·
How does the velocity of a ball change without buoyant force acting on it?
- PSN03
- · Replies 17 ·
Energy loss in simple harmonic motion causes the time period to shorten?
- aspodkfpo
- · Replies 18 ·
To find the resultant intensity
- PSN03
- · Replies 15 ·
Thermodynamic identity (math) question: one component system
- Hiero
- · Replies 6 ·
How Do You Calculate a Hohmann Transfer Orbit for a Mars Mission?
- theanswerai
- · Replies 1 ·
How does this exponential decay formula get derived?
- aspodkfpo
- · Replies 7 ·
What is the definition of cathode in the photoelectric effect?
- Rongeet Banerjee
- · Replies 1 ·
"Distance" between events in uniformly moving and accelerating frames
- brotherbobby
- · Replies 6 ·
Where does the force of tension act on a box?
- aspodkfpo
- · Replies 3 ·
Three conceptual questions on centripetal acceleration in a cone
- aspodkfpo
- · Replies 5 ·
Rock climbing with forces along a "cam clamp" axle
- aspodkfpo
- · Replies 5 ·
How Do You Calculate Neutron Wavelength?
- jjson775
- · Replies 14 ·
Current direction in a vertical conducting wire on horizontal rails
- Physicslearner500039
- · Replies 3 ·
What is the relationship between pressure and force inside a spherical object?
- PSN03
- · Replies 5 ·
Velocity due to known acceleration
- Anders Hijul
- · Replies 13 ·
Dodgy solution for a thermodynamics problem?
- aspodkfpo
- · Replies 1 ·
How do magnetic fields behave in superposition?
- aspodkfpo
- · Replies 8 ·
How to solve current circuit problems without enough information?
- Nicolas01
- · Replies 3 ·
Thermodynamics: internal energy and pressure
- LCSphysicist
- · Replies 3 ·
Parent needing help with a velocity question including air resistance
- jackiem1075
- · Replies 28 ·
Contradictory statement in question?
- aspodkfpo
- · Replies 1 ·
Chocolate milk mechanics question
- aspodkfpo
- · Replies 1 ·
Calculation of Change in Magnetic Flux Linkage of a moving wire
- Jy158654
- · Replies 3 ·
Is the change in internal energy really a state function?
- msw1
- · Replies 4 ·
Average speed with constant acceleration over a period of time
- aspodkfpo
- · Replies 7 ·
Stability of a floating cylinder
- etotheipi
- · Replies 7 ·
Improving Optics Accuracy with Digital Filtering and Ray Interpolation
- aspodkfpo
- · Replies 7 ·
To find the angular momentum of a disc
- PSN03
- · Replies 50 ·
Trolley with a box sitting on top
- aspodkfpo
- · Replies 6 ·
What is the resultant frequency if two similar waves superpose?
- Bruce_Pipi121
- · Replies 13 ·
What Is the Normal Force Acting On?
- aspodkfpo
- · Replies 1 ·
A polygon is rolling down a hill
- etotheipi
- · Replies 3 ·
Turkish Tubitak olympiads problems and solutions by Rafiq Abbasov
- Killua Rafiq
- · Replies 26 ·
What Does the First Entropy Equation for a Permeable Membrane Indicate?
- LCSphysicist
- · Replies 3 ·
Calculating Equivalent Voltage in a Complex Circuit: Thevenin vs. Norton
- jisbon
- · Replies 9 ·
Find the magnitude and direction of the Magnetic field required
- Physicslearner500039
- · Replies 9 ·
How Does Gravitational Compression Generate Heat in Protostars?
- etotheipi
- · Replies 4 ·
Using nodal analysis to solve for current
- jisbon
- · Replies 12 ·
Adiabatic expansion of a piston in a cylinder filled with ideal gas
- Hiero
- · Replies 19 ·
Solving for Electrical Potential Energy: Durcell's Example
- cwill53
- · Replies 11 ·
How can I find the velocity of a point on a disk rotating in a disc?
- burian
- · Replies 16 ·
Easy entropy problem, what is the permitted entropy?
- LCSphysicist
- · Replies 4 ·
Pressure generated by a force on a pump with a lever
- BiostudentWouter
- · Replies 2 ·
Frequency of sound received by an observer
- PSN03
- · Replies 5 ·
Attenuating floor oscillations with a cushion
- LCSphysicist
- · Replies 3 ·
Multiple-Choice Questions on the Behaviour of Waves and Light 😁
- lpettigrew
- · Replies 5 ·
Two blocks kept side by side and friction between them
- Hamiltonian
- · Replies 9 ·
How do we combine two waves to create Lissajous figures?
- LCSphysicist
- · Replies 1 ·
Simplifying Complex Circuits: Using Delta to Y Transformation
- jisbon
- · Replies 3 ·
Current flowing in a battery is null?
- A13235378
- · Replies 7 ·
Finding velocity and position of ##a(t)=−\omega^2(C_1\cos\theta+C_2\sin\theta)##
- fer Mnaj
- · Replies 12 ·
Why does the big block accelerate?
- rockinwhiz
- · Replies 44 ·
Understanding Pascal's Law: Why is Force Greater in One Cylinder Than the Other?
- brotherbobby
- · Replies 1 ·
Why Does the Friction Force Not Match in the Two Block Problem?
- Hamiltonian
- · Replies 15 ·
Calculate ##\vec{E}## of a single charge at a certain distance from it
- mcastillo356
- · Replies 6 ·