Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Second order differential equation solution
- Ron Burgundypants
- · Replies 6 ·
Lagrange Multipliers and Energy Loss Question
- cwill53
- · Replies 19 ·
Two block problems with friction
- Hamiltonian
- · Replies 6 ·
Relationship between Cp, Cv and R
- PSN03
- · Replies 7 ·
Nonlinear Hooke's law: cubic term vs Taylor expansion
- patric44
- · Replies 28 ·
What Experiments Can I Conduct to Investigate Light Sensitive Devices?
- Taksehasam
- · Replies 5 ·
What causes an object to rotate?
- Like Tony Stark
- · Replies 5 ·
Magnetic field from moving charge cross product
- Physicslearner500039
- · Replies 3 ·
What happens when an uncharged object is brought into an electric field?
- aspodkfpo
- · Replies 4 ·
Can Angles Be Assigned Dimension in Scientific Calculations?
- HappyFeynman
- · Replies 2 ·
Equation Alternatives for Young's Modulus
- LCSphysicist
- · Replies 14 ·
A simple pendulum is suspended from the ceiling of an accelerating car
- badluckmath
- · Replies 9 ·
The velocity of the center of the base of a rolling cone
- guv
- · Replies 14 ·
Change in acceleration with change of angle of applied force
- GreenOlive
- · Replies 4 ·
2 masses and 2 pulleys (Kleppner and Kolenkow)
- AspiringPhysicist12
- · Replies 2 ·
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 ·
Coupled pendulums: can we distinguish the normal modes?
- LCSphysicist
- · Replies 16 ·
How does the negative feedback amplifier below work?
- Jy158654
- · Replies 7 ·
Why does fractional error give different results than using raw values directly?
- 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 ·
Pulling a dog in a toy wagon
- Special One
- · Replies 4 ·
Finding correct equation for angle vs time in pendulum problem
- 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 ·
Why vertical force on curved surface equals pressure times projected area
- 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 ·
Multiple reflections between two beads on a string
- 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 ·
Why does swapping derivative order give zero for ∂v/∂μ in Gibbs-Duhem?
- 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 ·
Finding velocity with 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 ·
Finding equivalent voltage between Thevenin and Norton transformations
- 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 ·
Electrical potential energy of charges on cube vertices
- cwill53
- · Replies 11 ·