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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Pion's mean free path in a lake. exercIse question
- tasos
- · Replies 3 ·
Experiment to simulate the radioactive decay of U-235
- victorhugo
- · Replies 1 ·
Electric field inside a non uniform spherical distribution.
- takando12
- · Replies 10 ·
Find Centre of Mass of Semi-Circle: Solving Integrals
- Physgeek64
- · Replies 11 ·
How to prove a wave is travelling ?
- i_hate_math
- · Replies 4 ·
Work done in thermodynamic process
- CAF123
- · Replies 18 ·
Gravitational pressure dependence on volume
- Vibhor
- · Replies 26 ·
Approximation: The right way to do it
- Vibhor
- · Replies 14 ·
Pulse pass medium 1 to medium 2 Problem
- MMONISM
- · Replies 7 ·
Gravitational force - point mass and circular platform
- redivider
- · Replies 4 ·
Potential difference between two points (VA - VB)
- johnknee
- · Replies 1 ·
Where Should Charge Q3 Be Placed to Nullify Net Force Between Q1 and Q2?
- steroidjunkie
- · Replies 14 ·
How Does Torque Affect Body Stability in Ergonomics?
- pennywise1234
- · Replies 3 ·
What angle will the vine break and what's the max tension?
- Charlene
- · Replies 4 ·
A car is traveling at a steady 74 km/h in a 50 km/h zone....
- Mary0524
- · Replies 9 ·
Find Ampermeter Current from Circuit | R1 = 10 Ω; R2 = 10 Ω; R3 = 30 Ω
- kaspis245
- · Replies 4 ·
Relationship between Velocity, Kinetic Energy and Mass
- Nile Anderson
- · Replies 12 ·
Determining the Wavelength of Sound using Resonance Tube
- Nile Anderson
- · Replies 2 ·
Calculate the distance the sled travels
- ahardm1
- · Replies 1 ·
How high can it coast up the hill, if you neglect friction?
- alaa amed
- · Replies 1 ·
Moment of inertia of a neutron star
- kent davidge
- · Replies 5 ·
How long would it take a sound wave to travel 150m
- rpthomps
- · Replies 3 ·
Projectile Motion: Solving for Angle and Time
- Nate-2016
- · Replies 4 ·
Metal sphere on a thread in a horizontal electric field
- steroidjunkie
- · Replies 6 ·
How Do You Determine Normal Mode Frequencies in a Coupled Oscillator System?
- Yosty22
- · Replies 3 ·
Discharging a capacitor through resistor and uncharged cap
- sdfanm16
- · Replies 1 ·
Find if the boat will see the flare, what angle will they?
- Charlene
- · Replies 3 ·
What's the minimum initial speed to score
- Charlene
- · Replies 6 ·
Does Light in a Box Have Momentum?
- DrPapper
- · Replies 1 ·
Friction problem involving a block and pulley on a ramp....
- leojun
- · Replies 2 ·
Understanding the Need to Change π3 to π3' in Buckingham Theorem
- welovephysics
- · Replies 1 ·
How Deep Does the Acrylic Bottom Appear Under Water?
- feliperrr
- · Replies 2 ·
Simple Motor Project Solution Needed.
- UsamaN
- · Replies 3 ·
Which will boil faster: steel ball in container or just water?
- Ravi Singh choudhary
- · Replies 8 ·
Cylinder hitting inclined plane
- Vibhor
- · Replies 26 ·
How Do You Calculate Acceleration on an Inclined Plane with Friction?
- alex_todd
- · Replies 1 ·
Electrostatic field at the centre of a disk
- Physgeek64
- · Replies 15 ·
Calculate pressure difference in current-carrying mercury
- Sam J
- · Replies 1 ·
Calculating Smallest Path Length Difference for Overlapping Waves at Nodal Point
- rrosa522
- · Replies 6 ·
How far does the police car travel to catch a speeder traveling at 180 km/hr?
- Neal Parikh
- · Replies 1 ·
Oil & Water Problem: Ball Float 50% in Water - Why Does It Rise?
- Joe55433454
- · Replies 4 ·
Solving acceleration of a car with torques
- whatdoido
- · Replies 12 ·
Finding the speed of an object on a pulley system
- TiernanW
- · Replies 2 ·
Pressure is equal or force is equal at the bottom?
- Ravi Singh choudhary
- · Replies 31 ·
Calculate a torque from a pressure
- Gh778
- · Replies 27 ·
A ball being hit, find the energies and maximum height
- Charlene
- · Replies 9 ·
Reflection and Transmission of Plane Waves at a Dielectric-Metal Boundary
- bananabandana
- · Replies 1 ·
Help with the work-energy principle
- TiernanW
- · Replies 10 ·
Satellite moving around the Earth
- Vibhor
- · Replies 15 ·
Pendulum max gravity acceleration
- terryds
- · Replies 5 ·
Angular Width Of Central Diffraction
- Chris18
- · Replies 5 ·
What are the unit vectors in the x, y, and z directions?
- alijan kk
- · Replies 1 ·
Is the Tension Force in an Atwood Machine Only Transmitted Between Blocks?
- defaultusername
- · Replies 1 ·
Ideal gas through Isobaric process
- BurningUrge
- · Replies 3 ·
What will be stress in the unbalanced force situation
- Ravi Singh choudhary
- · Replies 2 ·
Solving Tension in Rope for Homogeneous Rod
- Norway
- · Replies 5 ·
Motion with elastic potential energy and other forces
- jackthehat
- · Replies 5 ·
3D Equilibrium of 4-wheel support
- washer
- · Replies 1 ·
Is Exponential Needed for Non-Repeating Variable in Buckingham Pi Theorem?
- foo9008
- · Replies 5 ·
Predicting Position for velocity time graph
- qwertyqwert321
- · Replies 4 ·
Compton effect photo scatterred
- negation
- · Replies 3 ·
Shear stress on surface of a bar
- harmyder
- · Replies 10 ·
Projectile Angle and Distance problem
- Nate-2016
- · Replies 6 ·
Curves on a Position time graph
- qwertyqwert321
- · Replies 3 ·
What is the Correct Calculation for Sam's Speed at the Bottom of the Slope?
- defaultusername
- · Replies 6 ·
What is the Rate of Work Done on a Box Moving at a Constant Velocity?
- chrispy2468
- · Replies 3 ·
Dynamic coeffecient of friction Problem
- pennywise1234
- · Replies 3 ·
Pendulum & Spring Equation of Motion
- mathfan
- · Replies 10 ·
Using a set square to reduce parallax error
- MBBphys
- · Replies 2 ·
Ideal Gas Expansion: Finding Depth of Tank
- Tardis Traveller
- · Replies 6 ·
Maximum angle between resultant and original vector
- Shivansh Mathur
- · Replies 9 ·
Potential Energy for dipole in Electric Field
- Curieuse
- · Replies 20 ·
Calculation of power produced by an electric fish
- Faiq
- · Replies 13 ·
Barbell in gravitational field (Lagrange)
- JulienB
- · Replies 38 ·
Alternative form of buckingham theorem
- foo9008
- · Replies 1 ·
How to calculate average velocity given distance and time?
- qwertyqwert321
- · Replies 6 ·
Internal Reflection / Fiber Optics
- jfulky
- · Replies 3 ·
How Do Kinetic Energies Compare When Two Bodies Have Equal Momentum?
- alijan kk
- · Replies 9 ·
Work and Energy: Find the Angle of Force - 65 Characters
- alijan kk
- · Replies 18 ·
Momentum of 1g and 4g Masses: 4:1, root2:1, 1:2, 1:16
- alijan kk
- · Replies 16 ·
What do echo and reverbation have in common?
- annalian
- · Replies 2 ·
Which Length Ratio is Correct in Fluid Mechanics?
- welovephysics
- · Replies 2 ·
RLC Circuit Question For final exam
- Hapusss
- · Replies 2 ·
Special relativity muon example
- Kara386
- · Replies 3 ·
Moment of Inertia of rod on an axis
- David112234
- · Replies 4 ·
What do interference and diffraction have in common
- annalian
- · Replies 1 ·
Help with determining distance where electric potential is 0
- Hannah7h
- · Replies 3 ·
Solving a Bubble Puzzle: Understanding Surface Tension Force
- Vibhor
- · Replies 21 ·
Circuit problem with two voltage source
- terryds
- · Replies 18 ·
Newtonian physics word problem static friction
- late347
- · Replies 15 ·
Which waves can have a constructive interference?
- annalian
- · Replies 3 ·
What Height Does KE Become Half for a 2 kg Body Thrown Upward?
- alijan kk
- · Replies 2 ·
Relative Velocity of Two Rockets and the Earth
- rbn251
- · Replies 8 ·
Deriving the Time Period of a Pendulum with Small Angle Approximation
- JulienB
- · Replies 2 ·
Angular Momentum of a rotating mass
- grassstrip1
- · Replies 3 ·
Rat Running on Ice: Solutions & Tips
- Vibhor
- · Replies 19 ·
Find the tension in the rope pulling a box at an angle
- qwertyqwert321
- · Replies 5 ·
Calculating Resistance in Prototype Boat using Formula of Force
- welovephysics
- · Replies 27 ·
A mass hits other two, one on top of the other
- Karol
- · Replies 16 ·
Thermal Equilibrium of Hot Iron & Water
- TT0
- · Replies 5 ·