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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Proof a property for a 3x3 matrix
- mathodman
- · Replies 5 ·
Variation of electric field and potential along the axis of a cone
- Physics lover
- · Replies 11 ·
Inductance of a Solenoid with a Core inside
- titansarus
- · Replies 7 ·
Finding the induced EMF in a solenoid-wire system
- titansarus
- · Replies 1 ·
What does "an axis normal to the plane containing the structure" look like?
- Benjamin_harsh
- · Replies 9 ·
Capacitance of a circular capacitor with two parallel dielectrics
- maxipoblete
- · Replies 2 ·
How to calculate the minimum kinetic energy (special relativity)?
- Efeguleroglu
- · Replies 11 ·
Car overtaking problem with one equation and two unknowns
- bolzano95
- · Replies 2 ·
Where does the plane exist in this parallel axis theorem?
- Benjamin_harsh
- · Replies 3 ·
Why are there no negative signs in this solution?
- Benjamin_harsh
- · Replies 3 ·
Finding inveriance size, equilibrium and fluctuations
- Gbox
- · Replies 1 ·
Difference between time / length equations for time dilation
- Pochen Liu
- · Replies 1 ·
RNA-seq data analaysis: probability of making at least one type I error
- Hamsi
- · Replies 4 ·
Finding the velocity of a skier
- amazingphysics2255
- · Replies 8 ·
Centripetal force while a car makes a turn
- greenrichy
- · Replies 9 ·
Finding the average water mass flow rate in a water rocket
- kelv_01
- · Replies 6 ·
Finding the amplitude of a vertical spring
- dnglified1
- · Replies 2 ·
Confusion about moment of inertia
- Hoshiiiiiiiiiiiii
- · Replies 8 ·
How Can Moment of Inertia Be the Same at the Radius of a Ring and Its Center?
- Benjamin_harsh
- · Replies 1 ·
Do these words have same meaning in Newtonian mechanics?
- Benjamin_harsh
- · Replies 1 ·
What would happen if the flywheel is not used in an IC Engine?
- Benjamin_harsh
- · Replies 7 ·
Moment of inertia of a square along an axis inclined at an angle
- Physics lover
- · Replies 15 ·
Motion of a particle in a uniform magnetic field
- Physics lover
- · Replies 5 ·
Man jumping onto a see-saw to launch bricks vertically
- lioric
- · Replies 41 ·
What is the equation for a spring launcher?
- Riman643
- · Replies 4 ·
Is it possible to use the center of gravity to balance a bird toy?
- Benjamin_harsh
- · Replies 11 ·
How can we pump air into a bicycle tire without opening the valve?
- Benjamin_harsh
- · Replies 5 ·
Why does error propagation for f=uv/(u+v) give different results?
- Terry Bing
- · Replies 6 ·
What are the name of this three arrows in this animation?
- Benjamin_harsh
- · Replies 1 ·
Rotational Motion / Static Equilibrium - Mechanics
- EEristavi
- · Replies 8 ·
How Do I Calculate Displacement for Vectors Pointing South and West?
- amazingphysics2255
- · Replies 28 ·
Deriving the Equation for Average Water Mass Flow Rate in Water Rocket Launches
- PhysicsIBStudent
- · Replies 12 ·
What is the significance of neglecting the encircled sides in Ampere's law?
- JD_PM
- · Replies 4 ·
What is the total moment of inertia using the negative area method?
- Benjamin_harsh
- · Replies 3 ·
Find Serret-Frenet Triad for Curve y = f(x): Solve Diff. Eq. -U`(s)
- hilton
- · Replies 2 ·
Maximum Angle of Incline for four wheel drive
- Laura2988
- · Replies 3 ·
Static equilibrium force decomposition problem
- Navyeel
- · Replies 4 ·
Expectation of Momentum in a Classical (Infinite) Potential Well
- ja07019
- · Replies 30 ·
2-Resistor, 2-Capacitor Circuit with Switch
- Mark Zhu
- · Replies 3 ·
What is the meaning of this syllabus?
- Benjamin_harsh
- · Replies 3 ·
A position of stable equilibrium, and the period of small oscillations
- Davidllerenav
- · Replies 57 ·
Fluids using Bernoullis principle
- clergy
- · Replies 2 ·
Spring force and the force of friction
- curicuri
- · Replies 2 ·
Finding mass B speed before collision with mass A
- Lifeboatboy
- · Replies 12 ·
What is the minimum force required to move the box?
- thomovich
- · Replies 6 ·
How to find the deceleration of a mass colliding on a spring?
- k.udhay
- · Replies 5 ·
Entropy change for water in contact with a reservoir
- Parzeevahl
- · Replies 4 ·
How Is Acceleration Calculated in a Space Shuttle Launch?
- confusedmia
- · Replies 3 ·
Explain why a negative sign is used before the 750(1.25)?
- Benjamin_harsh
- · Replies 16 ·
Finding resultant of two vectors using cosine and sine laws
- Benjamin_harsh
- · Replies 12 ·
Force of 100N on 5kg body with friction coefficients
- Benjamin_harsh
- · Replies 1 ·
Which pulse does more work on the spring?
- starnair03
- · Replies 1 ·
Calculate the activity in Bq of 1g of (238-94 Pu).
- Toby Simpson
- · Replies 1 ·
G-force diagram on a roller coaster?
- eri139
- · Replies 5 ·
Kirchhoff's law problem with two batteries
- patric44
- · Replies 4 ·
With what speed does the tip of a 25 meter high tree hit the ground?
- spsch
- · Replies 2 ·
Why rocket altitude does not increase proportionally?
- Starnair
- · Replies 1 ·
Why rocket altitude does not increase proportionally?
- Starnair
- · Replies 1 ·
How is the moment at A using the Force 1200N calculated?
- Benjamin_harsh
- · Replies 22 ·
Solve LC and LRC Circuits Kirchhoff's Rule Problem
- carold
- · Replies 3 ·
What is a two term tangent and how am I supposed to calculate it?
- F14
- · Replies 2 ·
Does the Velocity of the Center of Mass Consider the Spring and m2?
- Zamarripa
- · Replies 1 ·
Time it takes to swim across a river
- alexsphysics
- · Replies 22 ·
Help with a numerical physics problem
- pj96
- · Replies 1 ·
Solving for Electric Field at an Angle: Ex = 10.0V/m
- TTauri
- · Replies 1 ·
Finding the correct change of momentum in this system,
- HazyMan
- · Replies 13 ·
Calculating a velocity formula using air resistance
- NickMitch
- · Replies 4 ·
Motion Along a Straight Line: Calculate velocity of a stream
- alexsphysics
- · Replies 4 ·
Calculating Vx and Vy given V, X, Y
- Darkbound
- · Replies 29 ·
How long does it take to free fall from Mt. Everest?
- HamzaPhysical
- · Replies 10 ·
How Does the Coriolis Force Affect Particle Motion in a Rotating System?
- rakso
- · Replies 3 ·
How do I express time in terms of current speed in a river problem?
- alexsphysics
- · Replies 6 ·
Find the functions of V1, V2, V3 in an RC circuit
- Zoja
- · Replies 3 ·
Force when stopping a 150 kg object falling at 0.6 m/s
- Pete78
- · Replies 1 ·
What Exactly Does Equation (2) Mean? (Equations of Motion from PE function)
- humancentered666
- · Replies 2 ·
Calculate the force on the side of this water storage box
- didaw
- · Replies 29 ·
When to use the adiabatic index in the polytropic process formulae?
- Master1022
- · Replies 6 ·
Relative error and measurement precision
- mPlummers
- · Replies 5 ·
Stone released from a rising balloon
- subhradeep mahata
- · Replies 9 ·
Which Formula Best Suits a Hollow Gondola?
- solarmidnightrose
- · Replies 16 ·
How Much Will a Thrown Frozen Chicken Warm Up?
- defyingravity0
- · Replies 7 ·
Inelastic Collision Between Two Bodies
- aceking3150
- · Replies 6 ·
What is the angle between the velocity of and the normal to the racket?
- Amitayas Banerjee
- · Replies 1 ·
Resultant torque of a solid object
- Lone Wolf
- · Replies 2 ·
Spinning top's moment of inertia I (disc on shaft )
- lena_2509
- · Replies 6 ·
What is the problem with the coefficient of friction in my mousetrap car design?
- JackV
- · Replies 14 ·
AQA Exam -- oscilloscope question concept
- bonbon22
- · Replies 4 ·
Investigate Newtons Laws. Intro Physics
- Kmcquiggan
- · Replies 6 ·
Diffusion of heat from a point source being heated continuously
- Dishsoap
- · Replies 7 ·
Block pulled up incline: finding tension, work, and final velocity
- greenrichy
- · Replies 10 ·
Find the component of gravity along the curve
- Electrowonder
- · Replies 20 ·
How Fast Can a Ring with Uneven Mass Distribution Roll Without Hopping?
- C-137
- · Replies 4 ·
The efficiency of a furnace’s heat transfer process
- didaw
- · Replies 16 ·
Energy Conservation in Angular motion / Moment of Inertia
- EEristavi
- · Replies 6 ·
What will the phasor diagram of this LCR circuit looks like?
- Cedric Chia
- · Replies 1 ·
Conductive loop that is contracting in a magnetic field
- adrms
- · Replies 8 ·
Determining the final velocity and acceleration magnitude traveling along an arc
- HRubss
- · Replies 3 ·
Tension, Net Force, and Acceleration relationship?
- Riman643
- · Replies 28 ·
Conservation of Momentum (Elastic Collisions)
- Jimmy87
- · Replies 27 ·
Vertical circle in a pendulum ride -- tension force acting on the gondola
- Nikitta
- · Replies 7 ·