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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Calculating the Total Length of a Spring with Varying Masses
- Punchlinegirl
- · Replies 4 ·
Calculating Velocity with Relativistic Mass Equation
- kingyof2thejring
- · Replies 4 ·
Calculating Thermal Energy from a Head-On Collision
- crisicola
- · Replies 1 ·
Max Dist Compressed: .99m - Find Out How With Vibrations & Waves
- physics_ash82
- · Replies 2 ·
Calculating Fringe Distance with Multiple Wavelengths and Slit Spacing
- Christina
- · Replies 3 ·
Finding the Mass of a Puck in a 2-Dimensional Collision
- SwAnK
- · Replies 5 ·
Bullet speeds when fired up, down, and horizontally
- penumbraluna
- · Replies 3 ·
How Can I Prepare for Physics and Engineering Exam Questions?
- Trebor
- · Replies 5 ·
Tension in two wires at 25° and 50° holding a 20 kg mass
- avb203796
- · Replies 10 ·
Force needed to pull a 175 kg block with static friction 0.12
- avb203796
- · Replies 2 ·
Cylinder-and-piston physics probem
- jakeowens
- · Replies 1 ·
Earth's rotation, ladder friction, and momentum in space
- bobby13
- · Replies 1 ·
Calculating Bullet Speed Before Impact for Vibration Problem
- confusedaboutphysics
- · Replies 1 ·
Formula to calculate Rocket Thrust
- Serena_Greene
- · Replies 8 ·
At what rate must the current be to changed to produce 40V emf
- mr_coffee
- · Replies 3 ·
What is the rms potential difference across the resistor?
- mr_coffee
- · Replies 2 ·
Get the resistance for each wires
- Izekid
- · Replies 1 ·
Solving Mechanics Questions: Tips and Tricks for Success
- ElDavidas
- · Replies 11 ·
How Do You Calculate Acceleration with Friction Involved?
- yeyspaz
- · Replies 2 ·
Bridges and Archimedes' principle
- jrd007
- · Replies 14 ·
Whats the force of this baseball?
- yeyspaz
- · Replies 1 ·
Sound waves and calorimetry exam questions
- NutriGrainKiller
- · Replies 1 ·
Calculating Cork Volumes for Amusement Park Water Slide
- tiz_07
- · Replies 1 ·
What Is Magnetic Wire and How Is It Used in Building an Electromagnetic Motor?
- MiWiGi
- · Replies 1 ·
When are farenheit and kelvin numericaly equaly?
- kevinlikesphysics
- · Replies 7 ·
Checking Work on Condensing Steam: A Challenge!
- dustybray
- · Replies 2 ·
A confusing question - melting ice
- zhen
- · Replies 7 ·
What Do You Do When A/B Forces Aren't Shown?
- markow202
- · Replies 2 ·
How Does the Kinetic Theory of Gases Explain Gas Movement in a Cylinder?
- Seiya
- · Replies 2 ·
Is my book right? it seems wrong
- Tim.thelion
- · Replies 15 ·
Calculating Speed of Falling Meter Stick
- aug
- · Replies 2 ·
When should the Parallel Axis Theorem be used in mechanics?
- amcavoy
- · Replies 1 ·
What is the Final Temperature When Lead Shot is Mixed with Water?
- zhen
- · Replies 3 ·
Elastic collision between 3.42g and 6.84g objects
- snowbelle
- · Replies 5 ·
Glass beads falling 1 m onto a balance pan
- Lisa...
- · Replies 6 ·
Sound Waves - phase difference from time delay
- Arctangent
- · Replies 1 ·
Static Equilibrium: Finding More than One Balance Point
- unctarheels1
- · Replies 3 ·
Verifying force magnitude and direction, then calculating work
- Lisa...
- · Replies 5 ·
Image distance / focal length relation
- jmcgraw
- · Replies 1 ·
Turn radius needed for balance at 30 mph and 45 degrees inclination
- michaela
- · Replies 1 ·
Minimum height for rollercoaster to complete a loop of radius r
- Lisa...
- · Replies 10 ·
Minimum fuel escape burn at apogee or perigee?
- Hypercase
- · Replies 13 ·
Calculate the gravitational field strength
- sweet877
- · Replies 3 ·
Initial Amplitude and the Release Point
- moo5003
- · Replies 2 ·
What is the relationship between speed and radius for a car to avoid skidding?
- Jeann25
- · Replies 3 ·
Moment of inertia of a rod using the parallel axis theorem
- moo5003
- · Replies 2 ·
Conservation of energy springs.
- computer_geek
- · Replies 1 ·
Finding launch angle from momentum vs time graph
- tbomber
- · Replies 5 ·
Pulley problem using 2nd Law of motion
- KD
- · Replies 5 ·
Minimum Uncertainty of Electron's Momentum
- Pepsi24chevy
- · Replies 5 ·
Dalton's Law and Partial Pressure
- Soaring Crane
- · Replies 4 ·
Finding Thevenin voltage across R2 in circuit with R1-R5
- phyznut
- · Replies 4 ·
What is the longest vertical soda straw you could drink from?
- Gott_ist_tot
- · Replies 4 ·
How does Doppler affect the observed period of a moon of Jupiter?
- kp
- · Replies 4 ·
Single slit diffraction pattern size as hole diameter changes
- Gza
- · Replies 2 ·
Damped harmonic oscillator physics
- brad sue
- · Replies 2 ·
80 kg climber: max acceleration with rope at 1.1× static tension
- avb203796
- · Replies 9 ·
Calculating Required Air Temperature for Hot Air Balloon Stability
- unctarheels1
- · Replies 2 ·
Ballistic Pendulum Lab: Solving for Cart Speed
- fomenkoa
- · Replies 2 ·
Yes, that is correct. This is known as the critical velocity for a pendulum.
- ElDavidas
- · Replies 4 ·
Is the Principal Quantum Number n the Same as Planck's Proposed Quantization?
- asdf1
- · Replies 4 ·
A ball is thrown from the roof of a building
- plissken170
- · Replies 9 ·
Tangential and radial acceleration of a saw blade driven by a pulley system
- wku_tops
- · Replies 3 ·
Why is my calculation for the speed of a falling rod off by sqrt(2)?
- faculaganymede
- · Replies 4 ·
Solving friction and tension problems with boxes on inclines
- dewthejrew
- · Replies 2 ·
Gas Pressure in Open-End U-Tube Manometer
- Soaring Crane
- · Replies 1 ·
Statics: Shear force and Bending Moment
- unctarheels1
- · Replies 3 ·
Solving a Vertical Cylinder Pressure Problem
- lawgurl
- · Replies 2 ·
Maximum height of soda straw you can drink from
- Gott_ist_tot
- · Replies 2 ·
Static Equilibrium of massless rope
- suspenc3
- · Replies 6 ·
Calculating Energy Equivalent of 1 Gram Mass
- bkelly
- · Replies 5 ·
Calculating Amplitude of Elliptically Polarized EM Wave
- TriTertButoxy
- · Replies 1 ·
Solve Very Tough Question: Debunk Astrologists' Belief with Average Mass of 60kg
- Karma
- · Replies 3 ·
Solving Torque Question 3.12: Find Force F
- SS2006
- · Replies 5 ·
Calculating Force and Work of Man Pushing Piano
- crisicola
- · Replies 1 ·
Largest iron asteroid you could jump off and escape to space
- suzi
- · Replies 3 ·
What Is the Final Temperature of a Heated Copper Ball?
- FishieKissie06
- · Replies 1 ·
Is Converting Kgcm to Nm Correct?
- Lorens
- · Replies 4 ·
Finding car mass from tire pressure and footprint area
- jrd007
- · Replies 35 ·
What Is the Maximum Amplitude of Harmonic Motion Without Slippage?
- ViewtifulBeau
- · Replies 4 ·
How Is the Force Distributed in an Evacuated Chamber with a Panel Cover?
- Arctangent
- · Replies 4 ·
How Does Temperature Scale Impact Gas Pressure Calculations in Thermometers?
- FishieKissie06
- · Replies 4 ·
Fluids - bringing together pressure, depth and friction
- Arctangent
- · Replies 4 ·
Why cosine theta for calculations?
- Brad_1234
- · Replies 1 ·
Magnitude of elec field to balance electron?
- Brad_1234
- · Replies 2 ·
Gravitational Potential and Satellite Motion
- kingyof2thejring
- · Replies 2 ·
A Few Statics-Related Questions
- amcavoy
- · Replies 3 ·
What is the period of this pendulum?
- brad sue
- · Replies 2 ·
Calculating Distance of Two Speakers Producing 162Hz Sound
- lilkrazyrae
- · Replies 1 ·
Some questions about Schroding's cat
- lydcsa
- · Replies 4 ·
Simple Harmonic Motion oscillations
- kingyof2thejring
- · Replies 2 ·
Lab based conservation of energy quesiton.
- 404
- · Replies 11 ·
How Do Binary Stars Orbit and Affect Each Other's Mass and Distance?
- EbolaPox
- · Replies 1 ·
How to Apply Heat Flow Equations to a Sphere?
- capslock
- · Replies 2 ·
Understanding Otto Cycle: Calculating Cycles, Heat Input, and Efficiency
- kris24tf
- · Replies 1 ·
Calculating Frictional Force in a Water Eroded Tube: A Case Study
- Meis_113
- · Replies 2 ·
How Does Temperature Affect the Resonant Frequency of a Hydrometer?
- capslock
- · Replies 1 ·
Angular velocity - spherical coordinates
- emptymaximum
- · Replies 7 ·
Centrieptal accleration and the poles of the earth
- huhmattg
- · Replies 1 ·
Gravitional Potential Energy and Mass of Earth
- Tirokai
- · Replies 3 ·