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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How can I calculate the potential energy stored in a compressed spring?
- dge
- · Replies 4 ·
Calculate gravitational acceleration without mass of both objects
- IAmBadAtMath
- · Replies 1 ·
Deleting a node from a linked list in C#
- dan2222
- · Replies 1 ·
Forces acting on a car on an incline
- TheBigDig
- · Replies 4 ·
Finding average force from puck impact time on wall in lab
- iris
- · Replies 1 ·
Does element x present a linear resistance?
- Purpleshinyrock
- · Replies 3 ·
Using suvat to find time traveled by a cannonball
- Camden
- · Replies 8 ·
Dimensional Analysis: Solving Confusing Steps
- promise899
- · Replies 4 ·
Trouble with Part B of Physics Problem: Velocity
- Alsfc
- · Replies 5 ·
Finding launch angle when vertical velocity changes during flight
- roam
- · Replies 36 ·
Working out steam velocity with only pressure difference
- jacob1
- · Replies 3 ·
Problem in evaluating the absolute error
- patric44
- · Replies 4 ·
What Determines Maximum Tension in a Cord Between Two Blocks on Inclined Planes?
- mala06
- · Replies 25 ·
Is the force exerted by a pivot always towards the center of mass?
- lela
- · Replies 10 ·
What is the correct angle of displacement for a clock arm?
- rudransh verma
- · Replies 26 ·
What is the definition of potential energy of a system?
- engineeringstudnt
- · Replies 2 ·
How can two cylindrical lenses can be used to form a laser sheet?
- photonlz
- · Replies 4 ·
Gravitational force equals centrifugal force?
- Induana
- · Replies 23 ·
Special relativity and simultaneity: Spacecraft and Target
- LCSphysicist
- · Replies 2 ·
Different forms of Biot-Savart Law
- guyvsdcsniper
- · Replies 6 ·
Fluid flow inside a cylindrical tank
- fer Mnaj
- · Replies 8 ·
How does a mass moving up a ramp change its velocity?
- phantomvommand
- · Replies 5 ·
The Net Electric Field Inside a Dielectric
- Hamiltonian
- · Replies 10 ·
How to calculate differential work done by a force in circular motion?
- zenterix
- · Replies 1 ·
To find the forces on a composite object
- gnits
- · Replies 6 ·
Calculating magnetic field given dl, current, and radius vector
- desperatestudent123
- · Replies 1 ·
What Mistake Was Made in Finding the Speed of the Boxes?
- LokLe
- · Replies 20 ·
Mass slipping on a moving inclined plane
- york
- · Replies 5 ·
Free Body Diagram for a Piece of Gum on the Underside of a Desk
- flintstones
- · Replies 6 ·
Why Use bh/2 for the Area of a Non-Right Triangle?
- Gauss M.D.
- · Replies 7 ·
2 bodies spining and cut in the middle
- york
- · Replies 16 ·
Are My Inductor Equations Correct?
- PhysicsTest
- · Replies 6 ·
Calculate the dose rate in a drum of U3O8
- Supaylek
- · Replies 3 ·
Electrodynamics for a rotating ring
- scotshocker
- · Replies 3 ·
Speed/Velocity and Volume Flow Rate of Viscous Fluids
- Ophi-Siren-Kit
- · Replies 5 ·
Calculating the Number of Lines for a Diffraction Grating
- LCSphysicist
- · Replies 3 ·
Minkowski diagram, where to put an event
- Redwaves
- · Replies 6 ·
Choosing an Axis of Rotation for Equilibrium Analysis
- Taulant Sholla
- · Replies 8 ·
Pressure due to a Liquid on container Wall
- SpectraPhy09
- · Replies 6 ·
What happens to a ball placed on a moving conveyor belt?
- zenterix
- · Replies 8 ·
What kind of motion is this? (bicycle velocity vectors)
- rudransh verma
- · Replies 12 ·
[HW question] Image size difference of two light emitting nanospheres
- rinalai
- · Replies 4 ·
Gauss' law and flux concept issues
- engineeringstudnt
- · Replies 2 ·
Resolving power of a compound microscope
- rinalai
- · Replies 7 ·
Inside glass, can I apply relativity of speed for light?
- LCSphysicist
- · Replies 4 ·
Finding average acceleration from position and time data
- Emily0203
- · Replies 16 ·
Rod colliding with the ground (Special relativity question)
- LCSphysicist
- · Replies 4 ·
Error calculation in a measurement chain
- MathError
- · Replies 7 ·
Is there any friction in this case?
- LokLe
- · Replies 12 ·
Electric field problem -- Repulsive force between two charged spheres
- Dezzi
- · Replies 5 ·
Two inclined beams supporting a pail of water
- hofner
- · Replies 11 ·
Finding coefficient of kinetic friction on an inclined plane
- DonutHole
- · Replies 20 ·
DC Motor Efficiency: Why Does Efficiency Plot Look Like Parabola?
- George444fg
- · Replies 3 ·
Resultant Frequency and Wavelength of Interfering Sound Waves
- Codemetry
- · Replies 5 ·
Motional EMF with variable resistance: which force equation is correct?
- SpectraPhy09
- · Replies 6 ·
Possible to use work-energy theorem from a non-inertial frame?
- zenterix
- · Replies 1 ·
An expression for the vertical velocity as a function of time
- Physil
- · Replies 5 ·
TIme needed for a capacitor to reach a fraction of its final charge
- guyvsdcsniper
- · Replies 2 ·
Year 10 physics homework problem
- Camden
- · Replies 6 ·
Notation in fluid dynamics: A circle with a horizontal bar inside
- Leo Liu
- · Replies 2 ·
Earth's Accel.: Is 10^(-22)m/s^2 Correct?
- Oydpuuodouflj6r9
- · Replies 3 ·
Electric field and potential at midpoint between two charged spheres
- RamirezA
- · Replies 5 ·
Conductivity and Electric Field relationship
- arhzz
- · Replies 6 ·
Connection of two photovoltaic cells to produce larger current
- songoku
- · Replies 6 ·
Bobsled Impulse and Force -- ELASTIC collision problem
- sc8
- · Replies 10 ·
Trouble finding the current through this resistor in the circuit
- guyvsdcsniper
- · Replies 1 ·
Tension and angular acceleration in MIT 8.01 Example 20.4 unwinding drum system
- zenterix
- · Replies 9 ·
Problem involving interference and medium with index n
- LCSphysicist
- · Replies 1 ·
I just wanted to know how to find error/uncertainties from the graph
- vpt069
- · Replies 20 ·
Acceleration between two frames
- Monsterboy
- · Replies 38 ·
Calculate force to open a door with a gas spring
- Camiloae
- · Replies 23 ·
How Does the Definition of Work Affect the First Law of Thermodynamics Equation?
- Nick tringali
- · Replies 3 ·
How Do You Calculate the New Density of Kr in a Balloon?
- morechem28
- · Replies 84 ·
To calculate the forces on a composite body
- gnits
- · Replies 2 ·
Derivation of single slit diffraction formula
- songoku
- · Replies 9 ·
Speeds of the rolling ball at different points in this roller coaster track
- Ineedhelpwithphysics
- · Replies 6 ·
Interpreting Weird Results: J_u, P_1 and T_1
- baseballfan_ny
- · Replies 5 ·
How to calculate the Coriolis force on a moving object
- pablet
- · Replies 1 ·
Identifying external forces for a trolley with oscillating sphere
- curiousPep
- · Replies 8 ·
Hinged rod rotating, falling and hitting a mass
- Very_Unwise
- · Replies 11 ·
Compensating for Earth's Rotation With v = ωr
- nmnna
- · Replies 9 ·
Mass matters for standing waves on a string?
- zooch
- · Replies 1 ·
Force acting on a charge across a hybrid medium
- vcsharp2003
- · Replies 2 ·
Inverse-Square Law of Radiation
- ayans2495
- · Replies 17 ·
Why is tension equal to weight in this pulley system?
- Tapias5000
- · Replies 2 ·
Seemingly simple equilibrium problem - force balance
- davidwinth
- · Replies 6 ·
How to determine the same moment of inertia in two different ways?
- Tapias5000
- · Replies 3 ·
Proving that the incident intensity is not the same as the sum of others
- LCSphysicist
- · Replies 1 ·
Dynamics problem about two-dimensional tug-of-war
- Bunny-chan
- · Replies 5 ·
Using the sin function for a problem with a frictionless pulley and an incline
- sentimentaltrooper
- · Replies 8 ·
Why is acceleration zero in this kinematics problem?
- Alsfc
- · Replies 6 ·
Do Radio Transmitters cause diffraction?
- phantomvommand
- · Replies 11 ·
What is the common error when discussing the photoelectric effect?
- Aurora_b
- · Replies 4 ·
Finding acceleration of block with block on top, connected by rope
- sentimentaltrooper
- · Replies 6 ·
How Does Current Behave Over Time in AC Circuits?
- Benjamin_harsh
- · Replies 3 ·
Speed and direction of proton after collision
- songoku
- · Replies 28 ·
Why Does Fleming's Right Hand Rule Give an Upward Force on the Wire?
- Devs
- · Replies 4 ·
How can I locate the coordinates of the centroid of a cone in Z?
- Tapias5000
- · Replies 12 ·
How to Calculate the Resistance of Nichrome in a Series Circuit with Graphite?
- Ugnius
- · Replies 4 ·