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 Does an Ideal Fluid's Velocity Change When Hitting a Vertical Board?
- Istvan01
- · Replies 17 ·
What is the speed of each particle?
- OierL
- · Replies 6 ·
Impulse and Momentum: Ball and cart connected by a cord
- octu
- · Replies 24 ·
Need help with the magnetic field generated by this current distribution
- Magnetosphere
- · Replies 112 ·
What Happens to the Current Through R1 When E2 is Short Circuited?
- subhradeep mahata
- · Replies 6 ·
Troubleshooting Spring and Masses: How to Solve for Maximum Compression?
- Physics_Boi
- · Replies 10 ·
Is it possible to apply energy conservation here?
- navneet9431
- · Replies 12 ·
Induction Motor Auto-Transformer Starter - Power and Torque
- Stu80
- · Replies 10 ·
Explaination of Solid-Liquid and Solid-gas surface tension
- pranjal verma
- · Replies 5 ·
Question about a Windmill / Turbine
- Kamran_110
- · Replies 4 ·
Calculate the density at the centre of the Sun
- artworkmonkey
- · Replies 2 ·
Calculating the Weight of a Moving Object Using Momentum and Force
- Eitan Levy
- · Replies 24 ·
Apparent wavelength in Doppler's effect
- Krushnaraj Pandya
- · Replies 7 ·
Collision with a ball spinning about its vertical axis
- Mmarzipan
- · Replies 9 ·
Electric Power - Which formula to use and when?
- MeAndMyLucidLife
- · Replies 6 ·
A problem regarding the lens formula
- jxocq
- · Replies 13 ·
Ideal Gas Law and Pressure at 80°C
- SakuRERE
- · Replies 2 ·
Calculate Net Electric Field at Point P | Two Charges 42cm Apart
- Himanshu Singh
- · Replies 4 ·
Derivation: force on magnetic moment in magnetic field
- robinegberts
- · Replies 3 ·
What is the period of the second planet in this exercise?
- OierL
- · Replies 2 ·
Minimum deceleration to prevent a collision
- Jenny Physics
- · Replies 33 ·
Direction of friction in yo-yo where applied force is at top
- issacnewton
- · Replies 8 ·
Work Done by Man in Going Up Against the Motion of an Escalator
- sarthak sharma
- · Replies 27 ·
Rolling motion of Cylinders and Plank on a Slope
- Kingster426
- · Replies 8 ·
Energy and momentum conservation
- Cc518
- · Replies 6 ·
What is the Velocity of a Rotating Weight?
- stackptr
- · Replies 5 ·
How to Calculate Energy Produced from Collision of Particles?
- 1missing
- · Replies 6 ·
Requesting help with centripetal acceleration homework
- Myani
- · Replies 5 ·
Struggling with Gravitation and Orbits Homework?
- Physics_Boi
- · Replies 31 ·
Flag pole finding horizontal force component at hinge.
- Parker Hays
- · Replies 1 ·
Question about a conducting sphere in a varying magnetic field
- Clara Chung
- · Replies 3 ·
How Many Balloons Can Be Inflated from a Helium Cylinder?
- relatively-uncertain
- · Replies 16 ·
Amplitude of a mass joined to a spring in the presence of an E-field
- Shivang kohlii
- · Replies 5 ·
What Is the Average Power of Bullets Bouncing Off Superman?
- Taylan
- · Replies 26 ·
Mass falling to a scale from a funnel
- Eitan Levy
- · Replies 14 ·
Meaning of a phrase in a kinematics problem
- Fabrizio Vassallo
- · Replies 6 ·
Hohmann transfer ellipse to Mars orbit from LEO
- Raphael30
- · Replies 6 ·
Solving for final temp of adiabatic ideal air expansion
- takeachance
- · Replies 12 ·
Are theses approaches correct? (entropy change of water turning into steam)
- EastWindBreaks
- · Replies 9 ·
Force in a magnetic field on a moving coil
- subhradeep mahata
- · Replies 5 ·
Motion on a rough inclined plane
- Taylan
- · Replies 5 ·
Relativistic momentum of two photons from a decay
- zehkari
- · Replies 4 ·
Calculating the wavelength of a surface wave after impact
- LordOfCinders
- · Replies 1 ·
Thermal efficiency of the engine in a PV diagram
- YC_128
- · Replies 2 ·
Electric field of a non-conducting sphere
- TishBass
- · Replies 3 ·
Moment of inertia of two rods (T shape)
- IanAlpace
- · Replies 2 ·
Relativistic Dynamics Problem - Reference Frames
- Lost1ne
- · Replies 4 ·
Sun question: Determine the velocity of the gas
- artworkmonkey
- · Replies 8 ·
Determining Work Done by a Person on a Luggage
- SerenaMay
- · Replies 2 ·
Year1 Mechanics (angular momentum)
- AlanWWW
- · Replies 9 ·
How Fast Was the Car Moving in the Radar Speed Trap Experiment?
- C F
- · Replies 8 ·
Momentum and collisions homework help
- Stitch1775
- · Replies 1 ·
Does work have the same impact on entropy change as heat?
- Est120
- · Replies 2 ·
How Does the Ideal Gas Law Apply in Multi-Part Physics Problems?
- barryj
- · Replies 14 ·
Calculating τ by knowing I is proportional to A^2
- Cc518
- · Replies 8 ·
Velocity of a falling folded rope and reaction force
- Raphael30
- · Replies 10 ·
Thermal Expansion of a Wire Connected To a Rod
- person123
- · Replies 6 ·
How to Determine Velocity at Gear Center Using Point C?
- WhiteWolf98
- · Replies 5 ·
EM Wave Reflection and Refraction: Understanding the Fresnel Formalism
- Apashanka
- · Replies 18 ·
Problems calculating the New Moment of Inertia
- KMconcordia
- · Replies 9 ·
Three Charges Aligned on a Straight Wire
- Thundies22
- · Replies 2 ·
Calculating Angular Velocity and Tensions After a Ball Hits a Board at an Angle
- Raphael30
- · Replies 6 ·
Average force during a ball's elastic bounce off of a plate
- Apashanka
- · Replies 11 ·
Verify Magnetic Induction Homework: 50A Copper Wire 0.5*10-2m
- subhradeep mahata
- · Replies 5 ·
Error Calculation for a Diffraction Grating's Performance
- zehkari
- · Replies 6 ·
Calculating the magnitude of an electric field
- Haddon
- · Replies 10 ·
Solve Steiner's Theorem Homework: 2 Thin Bars of Mass M, Length L
- SchroedingersLion
- · Replies 11 ·
Magnetic field at a point due to a line of charge
- vysero
- · Replies 7 ·
Energy Efficiency: Input & Output (Work/Energy)
- harujina
- · Replies 6 ·
What happens to the current in a loop when a magnet approaches
- Selene0001
- · Replies 6 ·
Achieving Record Distances in the Hammer Throw
- mr1709
- · Replies 1 ·
Finding the Wavefunction for Tunneling,with tunnel lenght L
- Arman777
- · Replies 6 ·
Optimizing Periodic Motion in an Elliptical Orbit
- Jenny Physics
- · Replies 15 ·
Banked Road Physics Problem: Maximum Speed Calculation
- mr1709
- · Replies 5 ·
Calculating the final velocity of a simple electric train
- Himanshu Singh
- · Replies 49 ·
Reference frames and Galilean transformation
- Taylor_1989
- · Replies 10 ·
Tension force and acceleration Problem
- chef99
- · Replies 1 ·
How Do You Calculate Charge Density in a Uniform Sphere?
- TishBass
- · Replies 1 ·
Velocity of image in plane mirror
- subhradeep mahata
- · Replies 5 ·
Fill an empty bottle with R-134a
- stoky
- · Replies 1 ·
LRC Series Circuit Critical Damping
- rugerts
- · Replies 5 ·
What Torque Is Required to Raise a Water Bucket from a Well?
- OierL
- · Replies 5 ·
What Is the Blood Pressure in the Head When Standing?
- axer
- · Replies 1 ·
Work Done on Charges by a Capacitor and an Inductor
- rugerts
- · Replies 8 ·
What is the Angular Speed of a Rod Pivoted at One End?
- fight_club_alum
- · Replies 8 ·
Solving a Buoyancy Problem: Cube of Ice in Water & Ethyl Alcohol
- eri139
- · Replies 5 ·
Coupled oscillator: 2 masses and 3 different springs
- x24759
- · Replies 12 ·
Determine the friction force in a stacked block scenario
- jna
- · Replies 23 ·
A rocket burns out at an altitude h above the Earth's surface
- Benjamin Fogiel
- · Replies 2 ·
Calculate the natural circular frequency ωn of the system
- Alex Katko
- · Replies 10 ·
Finding the movement equation (non intertial system)
- velvetmist
- · Replies 1 ·
Calculating force of water coming out
- Raghav Gupta
- · Replies 11 ·
Finding the mass of a ball and a rod using torque
- Physics Person
- · Replies 8 ·
Circular Constant Acceleration Formula
- CyclicCircle
- · Replies 4 ·
How would I perform this surface integral?
- Boltzman Oscillation
- · Replies 7 ·
Calculating Slingshot Projectile Motion - Finding Initial Velocity
- Physics Person
- · Replies 5 ·
Kinetic Energy & Momentum of a Ball released from Spring
- Physics Person
- · Replies 6 ·
How Does the Speed of Block B Compare in a Three Mass Atwood Machine?
- octu
- · Replies 1 ·
How to Determine the Resistance R1 in a Mixed Circuit Analysis?
- Logan Batson
- · Replies 8 ·
Kinetic energy of rotation and parallel axis theorem problem
- LuigiAM
- · Replies 11 ·