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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Dual Pulley Problem: Acceleration of 10kg Mass
- Boltak
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How voltage affects electromagnet field strength and power
- Emmsey Square
- · Replies 3 ·
Creative Ways to Extinguish a Candle: A Fun Challenge for All Ages
- mustang
- · Replies 5 ·
Designing a Fission Reactor for Long-Term Operation
- nuclear
- · Replies 2 ·
Help with Musical Acoustics Final: Sample Test Questions
- jon9986
- · Replies 2 ·
Finding pressure in vertical tube section using Bernoulli's equation
- edge
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Finding Perpendicular Vectors with Sum [6,8]
- PiRsq
- · Replies 12 ·
Solving Electrostatics Question: Third Charge Placement for Zero Net Force"
- RexPokinghorn
- · Replies 2 ·
Launching projectile from north pole to equator
- greaser
- · Replies 2 ·
Math Practice: Periodic Functions
- scariari
- · Replies 2 ·
Solving Electron Problem 14: Find Electric Force (N)
- mustang
- · Replies 4 ·
Net electric field at y=2.1m from two point charges on x-axis
- mustang
- · Replies 10 ·
Springs, Pendulums and Centrifical Force
- DarkAnt
- · Replies 2 ·
What is the magnitude of the repulsive force in a nuclear fission problem?
- mustang
- · Replies 2 ·
How Do Electric Fields Influence Electron Movement and Force Calculations?
- mustang
- · Replies 4 ·
What is the electric field strength
- mustang
- · Replies 12 ·
What Is the Area of the Largest Rectangle Inscribed in a Semicircle?
- thegame
- · Replies 5 ·
Mass of charged object floating in vertical electric field
- mustang
- · Replies 19 ·
Negating a statement with quantifiers and conditionals
- yxgao
- · Replies 2 ·
AS Model Answers (Section C). OCR Board.
- Dope
- · Replies 2 ·
What's the Trick Behind This Chocolate Brain Teaser?
- amathea
- · Replies 2 ·
Power dissipated in RLC circuit
- fish
- · Replies 3 ·
What are some practice problems for final review in physics?
- moonlit
- · Replies 2 ·
What Went Wrong with My Calculation for Problem 14?
- mustang
- · Replies 5 ·
How Do Wolverine's Superpowers Relate to Physics?
- MiniTank
- · Replies 9 ·
Calculating gravity in rotating frame(ECR)
- Banjo
- · Replies 2 ·
Using Kinematic Equation w/ Constant Velocity: Solving Time of Fall
- celect
- · Replies 4 ·
Understanding Electric Fields between Charges
- roy5995
- · Replies 2 ·
Pulley with cylinder and distance
- SuperGeek
- · Replies 2 ·
What is the focal length of the converging lens?
- purduegrad
- · Replies 2 ·
Calculating Velocity of 6000 lb Truck Around 650 ft Curve
- cowgiljl
- · Replies 7 ·
How Long to Fall from the Leaning Tower of Pisa?
- celect
- · Replies 7 ·
Relative Maximum of x + k/x at x=-2
- tandoorichicken
- · Replies 2 ·
How is the Length of an Elliptical Curve Calculated?
- tandoorichicken
- · Replies 2 ·
Solving the Pendulum Problem: Mass, Speed, Frequency and Trajectory
- ice97531
- · Replies 5 ·
How do you find an antiderivative for f(x)=0 with F(0)=3?
- tandoorichicken
- · Replies 2 ·
Committee combination math problem
- PiRsq
- · Replies 2 ·
Where Can I Get Online Tutorials?
- Travis
- · Replies 18 ·
A potential V(r) = -k/r^4 A very superficial analysis
- yxgao
- · Replies 2 ·
Heat Transfer in Radiators: HOW DOES IT WORK?
- ruby_duby
- · Replies 2 ·
Mechanics difficulties - acceleration
- Micah18
- · Replies 6 ·
Mysterious Planet: Approximating its Density
- tandoorichicken
- · Replies 2 ·
Length of Latus Rectum in Ellipses: A Geometric Proof
- DarkAnt
- · Replies 3 ·
Solving the Integral: $\int \sin^2 x \cos x \,dx$
- tandoorichicken
- · Replies 2 ·
How Does Current Divide in a Series Circuit with Different Resistors?
- fish
- · Replies 2 ·
Who were notable figures and vessels during the Civil War?
- JohnB
- · Replies 3 ·
Ice melting in hot soup and finding metal specific heat capacity
- ericarnold86
- · Replies 2 ·
What is string theory and how do vibrating strings relate to particles?
- Alethia
- · Replies 1 ·
Ideal gas and final temperature
- cathliccat
- · Replies 2 ·
Calculate Tension in Cable, Force Exerted on Pole
- formulajoe
- · Replies 18 ·
Kinetic energy changes in collisions
- Jacob Aron
- · Replies 2 ·
Who is responsible for a quarter of the world's population being killed?
- young e.
- · Replies 3 ·
Rotation problems for physics final review
- harsh
- · Replies 9 ·
Calculating Horizontal Force Needed to Pull Wheel
- formulajoe
- · Replies 14 ·
Calculating Energy Requirements for Changing Satellite Orbits
- jazzchan
- · Replies 8 ·
What is the minimum angle at which the ladder will not slip?
- formulajoe
- · Replies 18 ·
What is the acceleration of the bowling ball in a subway car?
- StephenPrivitera
- · Replies 6 ·
What Factors Affect the Rate of Heat Loss?
- franz32
- · Replies 2 ·
Measuring the wavelength of light using diffraction
- ScienceGirl
- · Replies 2 ·
Car on flat track Rotation problem?
- moooocow
- · Replies 2 ·
Solve Rotational Motion w/ Pulley & Cylinder: Acceleration Calculation
- SuperGeek
- · Replies 2 ·
What are the first and second derivatives of the function
- roy5995
- · Replies 6 ·
Wave Pulse Travel Time on 24m Nylon Rope
- StephenPrivitera
- · Replies 5 ·
Chemistry Word Equations: Barium Chlorate, Methane, Calcium Iodide, and More!
- hecate
- · Replies 2 ·
How Do You Calculate Distance Traveled and Minimum Stopping Acceleration?
- Girldistracted
- · Replies 2 ·
How Do Radiation and Evaporation Affect Newton's Law of Cooling?
- tucky
- · Replies 2 ·
Cylinder fitted with piston and spring im lost
- Rival
- · Replies 13 ·
Fe3+ concentration in galvanic cell with Pt cathode and Cu anode
- Maxwell
- · Replies 2 ·
Calculating Tension in a Deflected Rope: A Simple Physics Problem
- StephenPrivitera
- · Replies 5 ·
Electric, Magnetic, and Gravitational Fields
- Foon
- · Replies 2 ·
How Do You Calculate Acceleration in a Dual Pulley System?
- Boltak
- · Replies 3 ·
Find the final speed of an electron
- marshall4
- · Replies 2 ·
Verifying Answers to a Problem Using Attached Figure
- discoverer02
- · Replies 3 ·
How Does Redesigning a Rollercoaster with a Spring Affect Physics Calculations?
- tec[H}nogeek
- · Replies 4 ·
Equations of Planes: Solve xz-intersection Line
- Cyto
- · Replies 2 ·
Fundamental Counting Principle problem
- PiRsq
- · Replies 3 ·
Force of friction in circular motion
- kbrowne29
- · Replies 2 ·
How difficult is it to produce plutonium from U-238?
- nuclear
- · Replies 6 ·
What Components Create a 7 kHz Cut-Off Frequency in a Passive Band Pass Filter?
- blair321
- · Replies 10 ·
Spring Mass System Approximations questions
- Ethers0n
- · Replies 2 ·
Calculating Vertical Components in Ski-Jump Slopes
- Claire84
- · Replies 5 ·
Finding wavelength of neutrons in double slit experiment
- philosophy42
- · Replies 1 ·
Solving Momentum Problem w/ Friction: Find Bullet Speed
- pringless
- · Replies 2 ·
Formula for calculating band pass filters
- blair321
- · Replies 6 ·
Santa sliding down a roof and colliding with an elf
- bard
- · Replies 4 ·
Calculating Acceleration of a Solar Sail at a Distance from the Sun
- purduegrad
- · Replies 3 ·
Diffraction lens diameter Problem
- purduegrad
- · Replies 2 ·
Electron orbital speed in hydrogen atom model
- discostu
- · Replies 3 ·
Classical mechanics and specific relativity
- nuclear
- · Replies 3 ·
What is the charge needed to suspend an oil drop in an electric field?
- marshall4
- · Replies 2 ·
How should you stack the blocks to achieve the maximum protrusion?
- StephenPrivitera
- · Replies 9 ·
Physics Work and Energy problem
- FOBoi1122
- · Replies 2 ·
Work and energy bicycle question
- templaroftheages
- · Replies 2 ·
How Does Spring Force Affect Particle Movement on a Frictionless Surface?
- FOBoi1122
- · Replies 2 ·
Force on particle attached to two springs pulled perpendicular
- FOBoi1122
- · Replies 2 ·
Weight on a Planet with Twice the Mass and Three Times the Radius
- tandoorichicken
- · Replies 2 ·
Solving a Raft Submersion Problem - Edge Needs a Second Opinion
- edge
- · Replies 2 ·
Difference between flow rate and flow speed in the continuity equation
- edge
- · Replies 6 ·
How Do Gliders Behave in an Elastic Collision?
- ACLerok
- · Replies 2 ·
Converting polar angle arctan(4√3/−4) to degrees
- StarkyDee
- · Replies 9 ·