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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Design egg transport device powered by falling mass for 8-12 meter track
- KbCs2006
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Why is ionization energy exactly 10.4 eV if ground state is -10.4 eV?
- m00c0w
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Pulse power of a flashlamp-pumped Nd:YAG laser
- T7
- · Replies 3 ·
Heat Transfer Diff. Equation: Fixed vs Free Extremities
- Jairo
- · Replies 2 ·
Physics and math exam study techniques
- rocketboy
- · Replies 6 ·
Calculating Frictional Force on a Bullet Using the Momentum Formula
- nrc_8706
- · Replies 11 ·
Bullet kinematics to find velocity
- nrc_8706
- · Replies 6 ·
Initial velocity of bullets - collisions
- nrc_8706
- · Replies 11 ·
Vector Addition and Angle Calculation Using Trigonometry
- Dooga Blackrazor
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Collision angle of deflection problem
- PhysicsDud
- · Replies 2 ·
Determine the times at which the velocity=0
- teng125
- · Replies 12 ·
Temperature and pressure question
- furtivefelon
- · Replies 3 ·
Solving F(r) and Finding Potential Function in r
- ElDavidas
- · Replies 3 ·
Wave Terms: Cycle, Frequency, Resonance, Sympathetic Vibration, Timbre
- StaticShock
- · Replies 1 ·
Solving Rotating Slotted Arm Problem
- Benny
- · Replies 1 ·
How much energy is released as 1kg of hydrogen is consumed?
- frozen7
- · Replies 1 ·
Difference between applied tension and tension due to weight?
- Petrikovski
- · Replies 2 ·
Projectile Angle: Finding the Launch Angle
- airforce840
- · Replies 4 ·
Physics essay topic with an experiment for high school
- madoxx
- · Replies 4 ·
Oscillating Ball on a Spring: Analyzing Motion
- G01
- · Replies 4 ·
Carnot(ideal) refrigerator question
- furtivefelon
- · Replies 1 ·
Finding photon frequency from energy level change
- hshphyss
- · Replies 5 ·
Inelastic collision of ball drop
- nrc_8706
- · Replies 2 ·
Finding the height of a clylindrical silo with just the volume
- kgbwolf
- · Replies 6 ·
Magnetism - the proportionality constant question
- dragon513
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Uncertainty in physical measurements
- O.J.
- · Replies 6 ·
What Is the Force on a Point-Charge Inside a Charged Circle?
- Suxxor
- · Replies 4 ·
Solving Interaction Force Problem on Bead Along Spiral Slide
- Benny
- · Replies 2 ·
Interesting deal with friction and energy
- DaMastaofFisix
- · Replies 4 ·
Solving SHM Kinematics: Find the Period!
- G01
- · Replies 1 ·
Find average acceleration of particle with velocity change in direction
- Harmony
- · Replies 8 ·
Calculating Vertical Momentum Conservation in a Collision
- metalmagik
- · Replies 4 ·
Constant velocity and constant acce
- teng125
- · Replies 2 ·
Calculating Total Acceleration on an Outdoor Track
- teng125
- · Replies 7 ·
How Does Particle Acceleration Affect Position and Total Distance Traveled?
- teng125
- · Replies 21 ·
Block sliding down incline and compressing spring
- PrudensOptimus
- · Replies 5 ·
Calculating Energy of Electron in Bohr Hydrogen Atom
- frozen7
- · Replies 9 ·
Why can a real wave equation be written in complex form?
- darkar
- · Replies 1 ·
Uncertainty principle and an electron
- thenewbosco
- · Replies 6 ·
Question: Solving the 10000-meter run time problem with constant acceleration
- kylera
- · Replies 2 ·
Calculating Appliance Energy Costs: Wattage vs. Voltage
- saschouch
- · Replies 4 ·
Pressure of interstellar gas with 10^6 atoms per cubic meter
- chineseman1
- · Replies 8 ·
Rotational Equilibrium and Dynamics Question
- ryomaechizen
- · Replies 1 ·
How Does Mass M Accelerate on a Frictionless Incline?
- VashtheStampede
- · Replies 11 ·
Aiming for the Bull's Eye: Accounting for Gravity
- VashtheStampede
- · Replies 1 ·
Tangential and normal components
- teng125
- · Replies 22 ·
Calculate the mechanical advantage of a 3 gear train system?
- Chocolaty
- · Replies 1 ·
What is the equation for calculating terminal velocity?
- ElDavidas
- · Replies 4 ·
Physics Gravitational Force Question
- neoking77
- · Replies 2 ·
Lab design using pressure equations P=ρgh and P=F/A
- Zenaide
- · Replies 1 ·
Air Resistance Effects on Projectile Trajectory Shape
- Dooga Blackrazor
- · Replies 6 ·
How Does Momentum Affect Motion on Ice and in Spring-Loaded Systems?
- courtrigrad
- · Replies 2 ·
Calculate Tangential Speed of Yo-yo with Centripetal Acceleration of 289 m/s2
- Trotsky
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What force must a person exert to jump 75 cm high
- Woofuls
- · Replies 1 ·
Simple Rotation + Angular Velocity Question
- AiLove
- · Replies 1 ·
How Do Sudden and Gradual Forces Affect a Mass Differently?
- chandran
- · Replies 3 ·
What is the Initial Angular Acceleration of a Pivoted Rod with Hanging Masses?
- chowyo123
- · Replies 15 ·
Football kicked at 45° travels 82m: find initial velocity and flight time
- VashtheStampede
- · Replies 9 ·
Determine the uniform deceleration of car A
- teng125
- · Replies 3 ·
Calculate the force exerted by the wall on the ladder
- abner498
- · Replies 25 ·
Block falling with pulley friction takes 1.11s, not 0.41s
- G01
- · Replies 11 ·
Maximum speed of a child on a swing rising 0.5 m
- asddsa
- · Replies 3 ·
What is the Total Distance Traveled with Zero Acceleration?
- teng125
- · Replies 15 ·
Uncertainty without a given estimation
- kylera
- · Replies 1 ·
Determine the largest value of angle optics problem
- frozen7
- · Replies 11 ·
Centripedal acceleration question
- dragon513
- · Replies 3 ·
Applying Hooke's law to multiple springs on a particle
- ElDavidas
- · Replies 2 ·
Understanding Centre of Mass Motion: E + $\sum_{i < j}(F_j_i + F_j_j)$
- ElDavidas
- · Replies 5 ·
Hi, i'm not sure how to prove this about buoyance
- Chocolaty
- · Replies 9 ·
Speed of Point at Front Edge of 6.0cm Wheel Rolling at 20m/s
- G01
- · Replies 1 ·
What is the relationship between velocity and air resistance?
- finchie_88
- · Replies 3 ·
If I have Volts, and I need eV, how do I get that?
- April30
- · Replies 3 ·
Calculating Charge on Suspended Spheres using Coulomb's Law
- preet
- · Replies 2 ·
Understanding Gravitational Potential Energy of Artificial Satellites
- radou
- · Replies 1 ·
Average force stopping a falling rock using impulse-momentum theorem
- haki
- · Replies 1 ·
Infinite long dielectic cylintrical shell of some finite thickness
- kant
- · Replies 13 ·
What is the Angle Turned by the Wheel of a Car During Acceleration?
- chase23
- · Replies 9 ·
Separating eddy current damping from air resistance in SHM
- dfx
- · Replies 7 ·
Find the acceleration in the string
- jesuslovesu
- · Replies 5 ·
Calculating Distance and Speed of Falling Objects
- Ekka
- · Replies 16 ·
Calculating Recoil Velocity of Cobalt-60 Nucleus Emitted Gamma Ray
- Astronomer186
- · Replies 1 ·
How does the double summation in Newton's second law work?
- Benny
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Calculate a spring constant using measurements from a Hooke's Law
- Senor_Blue
- · Replies 8 ·
Newton's Law of Gravity and Potential Energy
- G01
- · Replies 5 ·
What is the Energy Required to Compress Air from 1 atm to 50 atm?
- mircea
- · Replies 3 ·
Magnatice field, moving rantangle conducting rod, incline plane
- kant
- · Replies 7 ·
Concept with Maxwell-Boltzmann Distribution Curve
- erik-the-red
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Spring and particles in motion problem
- ElDavidas
- · Replies 3 ·
A bus is moving and lots of ppl jumping
- darkar
- · Replies 2 ·
Finding velocity components of object on Earth's surface over time
- Wizardsblade
- · Replies 4 ·
How far does a photon move in the time dimension when it travels for one second?
- OpenSourceArts
- · Replies 16 ·
Moment of inertia derivation for a uniform disk
- amcavoy
- · Replies 2 ·
Calculating Reaction Force from Fluid: Nozzle Size, Density, and Pressure
- NZBen
- · Replies 1 ·
Man Standing Near Top of Ladder Unstable - Why?
- chound
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Average Occupancy of Lower Energy Level in Quantum Mechanics
- torchbear
- · Replies 3 ·
Relativistic momentum of electron and electron-positron collision energy
- F.B
- · Replies 6 ·
Constant velocity on frictional slope
- Loren Booda
- · Replies 6 ·
Determine the energy of the electromagnetic radiation
- F.B
- · Replies 1 ·
Is the Grand Unification Theory the Key to Unifying All Fundamental Forces?
- hotp
- · Replies 2 ·