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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Boltzmann distribution for proton spin in NMR at 400 MHz
- Lisa...
- · Replies 2 ·
How to find the mass of a piston from pressure and area
- pureouchies4717
- · Replies 3 ·
Solving Current-Voltage Characteristic of P-N Diodes with ln i = ln i˚ + eV/2kT
- tallin_grady
- · Replies 1 ·
A Simple Pendulum: Concentrating Weight on a String or Rod
- jrm2002
- · Replies 1 ·
How much lift is required to fly at level unaccelerated flight
- juelz
- · Replies 8 ·
Masses hanging on massless meter stick problem
- FlipStyle1308
- · Replies 17 ·
Torque problem - game show wheel
- FlipStyle1308
- · Replies 10 ·
Calculating Power Dissipation in a Wired Circuit with Resistors and a 9V Battery
- spoonthrower
- · Replies 2 ·
Angular acceleration problem - fishing reel
- FlipStyle1308
- · Replies 8 ·
Angular acceleration problem - masses on massless rod
- FlipStyle1308
- · Replies 8 ·
Electric Energy: False Claims Debunked
- lorramcet
- · Replies 1 ·
Walker's position using vectors and bearings in mountain rescue
- turnstile
- · Replies 7 ·
Polarization-polarizing filters
- untitledm9
- · Replies 2 ·
Solve the Circuit: Find R1-R7 to Calculate A to B Resistance
- spoonthrower
- · Replies 5 ·
Bernoulli's Equation on water flow
- mb85
- · Replies 1 ·
How Can David Estimate the Weight of a Non-Uniform Log?
- turnstile
- · Replies 3 ·
How Does Projectile Motion Affect a Coconut's Flight from a Tree?
- PreDeadMan123
- · Replies 1 ·
Cannon projectile fired from cliff height landing closest to cliff face
- PreDeadMan123
- · Replies 5 ·
What is the maximum speed of the ejected electrons? good times
- mr_coffee
- · Replies 5 ·
Where does energy come from when gases heat up during compression?
- sparsh
- · Replies 2 ·
What is the ground state energy of an electron? I thought i did this right
- mr_coffee
- · Replies 3 ·
SHM damping coefficient which envelope sign?
- dfx
- · Replies 8 ·
The Equivalence of Mass and Energy
- BoogieL80
- · Replies 13 ·
What Is the Work Done by the Spring When Extended by an External Force?
- damonm
- · Replies 3 ·
Solving a Physics Problem Involving Two Metal Spheres
- Jacques
- · Replies 8 ·
How Do You Calculate Tension and Acceleration in a Towing Scenario?
- turnstile
- · Replies 5 ·
How Does Car Suspension Behavior Change With a Malfunctioning Shock Absorber?
- sparsh
- · Replies 1 ·
Mechanics Question of two balls
- turnstile
- · Replies 12 ·
1 Question with regarded to Centripical Forces
- JayDub
- · Replies 2 ·
Solving Stopping Potential for Electrons Ejected from Metal at 337nm Wavelength
- mr_coffee
- · Replies 5 ·
Problem Determine the energy of an electron. Bohrs model fun
- mr_coffee
- · Replies 4 ·
How you put gravity in for the equation
- therealkellys
- · Replies 2 ·
Finding equilibrium temperature when mixing water at different temperatures
- thunder
- · Replies 1 ·
How Does Standard Error Change When Inverting a Variable?
- n0_3sc
- · Replies 1 ·
Mechanics Part II: P, Q, and F Forces
- turnstile
- · Replies 4 ·
A ladder against a frictionless wall
- scavok
- · Replies 7 ·
SCUnderstanding Sound Waves to Solving Time and Distance Problems
- star Wise
- · Replies 2 ·
Circular Motion and Gravitation questions
- Numbnut247
- · Replies 3 ·
Three experiments for specific heat capacity of metal
- gem0688
- · Replies 8 ·
Inertial frames in special relativity
- JustinLevy
- · Replies 2 ·
How much does the temperature of an auditorium increase when filled with people?
- Xandu
- · Replies 4 ·
How to Find Tangential and Perpendicular Components of a Vector Along a Path?
- gulsen
- · Replies 1 ·
Max Magnetic Force Experienced by Electrons Accelerated at 19 kV
- spoonthrower
- · Replies 3 ·
Which Metal is Best for Minimizing Heat Transfer in Turbo Intercooler Piping?
- whereami
- · Replies 5 ·
Weight of truck from water displacement on a ferryboat
- PHYclueless
- · Replies 3 ·
Does a box with angled force slip or tip first?
- danielI
- · Replies 2 ·
Resistor connected in series with a capacitor?
- gunblaze
- · Replies 4 ·
Understanding Systematic and Random Errors in Scientific Measurements
- gem0688
- · Replies 10 ·
Uniform Circular Motion of centrifuge
- MetalCut
- · Replies 8 ·
Positively Charged Particle in a Magnetic Field
- amcavoy
- · Replies 4 ·
How do circuit conventions relate to actual electron flow?
- KCL
- · Replies 7 ·
Quiiiiick Questions about mirrors.
- Da-Force
- · Replies 2 ·
Solve for Pulley Tension and Acceleration in a Three-Block Physics System"
- Supernerd2004
- · Replies 3 ·
What lengths would be measured for two cars passing each other at 0.18c?
- catalyst55
- · Replies 2 ·
Deriving the lorentz transforms
- Thrice
- · Replies 7 ·
Converting between W/m² and dB for sound intensity
- Huskies213
- · Replies 4 ·
Converting Degrees to Radians on a TI-83+
- mrserv0n
- · Replies 2 ·
How to Calculate the Observer's Viewing Angle in a Refraction Problem?
- U571-Phys
- · Replies 1 ·
How Do You Calculate Maximum Induced EMF in a Coil System?
- Punchlinegirl
- · Replies 8 ·
Find Solution to Ship Fuel Problem: 1.0 X 10^5 N Drag
- laydico
- · Replies 2 ·
Davisson-Germer experiment: finding lattice spacing from 54 eV electrons
- Yael
- · Replies 27 ·
How much charge passes through a part of a circuit?
- Boxcutter
- · Replies 1 ·
Capacitors and Dielectrics of a circuit
- spoonthrower
- · Replies 2 ·
Gas turbine work and heat transfer with polytropic expansion
- sa1066
- · Replies 1 ·
Rainbow Visible to Hiker on Isolated Mountain Peak: 0.49 Fraction
- Abhishek.S
- · Replies 1 ·
How much heat is generated from lost mechanical energy?
- willydavidjr
- · Replies 14 ·
Calculating Tire/Tyre Forces in Weight Distribution of 1400kg Car
- danielI
- · Replies 4 ·
Calculating Work Done by a Varying Force: Positive or Negative?
- williams31
- · Replies 2 ·
Index of refraction optics problem
- brad sue
- · Replies 3 ·
Neutron velocity selector with 1 meter disc separation and 3 arcsecond angular gap
- mcolem
- · Replies 8 ·
Average and instantaneous power of a spinning propeller with constant torque
- Kenchin
- · Replies 1 ·
How Is Potential Difference Calculated in a Parallel-Plate Capacitor?
- mlowery
- · Replies 1 ·
How Is Terminal Velocity Calculated in a Magnetic Rail System?
- Punchlinegirl
- · Replies 3 ·
Calculating Time for Inductor Voltage to Drop to 13 V in RL Circuit
- Punchlinegirl
- · Replies 4 ·
Time to push a 2 kg bucket 5 m with 100 N force at 60°
- Celestial_Morning
- · Replies 1 ·
Damped Simple Harmonic Motion problem
- davegillmour
- · Replies 2 ·
Understanding Mechanics and Relativity: Two Problems and Their Solutions
- Pseudo Statistic
- · Replies 3 ·
Calculating Frequency, Wavelength, and Tension of a Sinusoidal Wave on a String
- davegillmour
- · Replies 3 ·
Two-block pulley system with minimum weight to prevent sliding
- freecorp777
- · Replies 5 ·
Units of k in the formula a = F*k
- oooo
- · Replies 3 ·
Police car catching a speeder at 28 m/s with 3.6 m/s² acceleration
- ash_gurlie10
- · Replies 5 ·
How Do You Solve These Physics Problems on Work and Roller Coaster Dynamics?
- williams31
- · Replies 41 ·
Maximum power rating for 800:80 transformer at 120V with 15A circuit breaker
- tnkfub
- · Replies 4 ·
Forces and torque equilibrium with tensions and masses
- JayDub
- · Replies 13 ·
Conservation of energy of released ball
- O.J.
- · Replies 3 ·
Proof of an expression concerning an RLC circuit
- batshwa
- · Replies 8 ·
Solve Wave Moving w/ Constant Acceleration: Hi Guys!
- Psi-String
- · Replies 2 ·
Adding air resistance to airsoft BB projectile equations
- CopperHead4750
- · Replies 7 ·
Table of specific heat capacity values?
- gem0688
- · Replies 7 ·
Finding kinetic friction coefficient when box slides down inclined plank
- frankfjf
- · Replies 1 ·
Calculating Work Done by a Constant Force
- opticaltempest
- · Replies 3 ·
How Do You Calculate the Acceleration of an Electron in a Magnetic Field?
- tnkfub
- · Replies 5 ·
What Is the Correct Velocity of a Bungee Jumper as the Cord Begins to Stretch?
- tink123
- · Replies 1 ·
How does a photo detector detect?
- einstein2603
- · Replies 2 ·
Understanding Absolute Error & Resistance of Wires
- khizman
- · Replies 9 ·
What Is the Expression for Acceleration in This MCQ?
- O.J.
- · Replies 6 ·
Understanding Normalized Equations in Wave Function Analysis
- Tyst
- · Replies 2 ·
Photodiode current measurement circuit diagram
- einstein2603
- · Replies 5 ·
Gradient Units: For Hooke's Law Graphs
- UltraMagnus
- · Replies 5 ·
Is torque a vector or a scalar quantity?
- JayDub
- · Replies 5 ·