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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What is the Sound Intensity at 7.1 Meters?
- yankeesfan08
- · Replies 2 ·
How Fast Must a Golf Ball Travel to Avoid a Windmill Blade?
- NotaPhysicsMan
- · Replies 12 ·
Maximum height of a uniform vertical column
- physicsss
- · Replies 2 ·
Triangle Formula: Isocolese Angle Measurements
- IndyAndy
- · Replies 2 ·
Conservation of Energy and satellite
- phy
- · Replies 4 ·
Changes in Mechanical Energy for Nonconservative Forces
- Bri
- · Replies 9 ·
Accelerating an electron through a pot. diff.
- Romperstomper
- · Replies 2 ·
Calculating Linear Acceleration on a Rotating Record
- jenavira
- · Replies 2 ·
The moment of inertia of the stool with respect to an axis at its center?
- chattkis3
- · Replies 7 ·
Help with proportion problems: earnings, picture enlargement, and fractions
- simplywrite
- · Replies 6 ·
Work done by air resistance on a basketball shot
- Bcisewski
- · Replies 2 ·
How Does Total Variation Relate to the Integral of the Absolute Derivative?
- fourier jr
- · Replies 2 ·
How Can Angular Momentum Be Described for a Rotating and Translating Disk?
- Zenshin
- · Replies 3 ·
Equilibrium and tension problem
- FarazAli
- · Replies 2 ·
Why Does Oil Appear Red on Water at Certain Thicknesses?
- GreenDinos
- · Replies 2 ·
Will Fusion Reactors Power the Next Millennium?
- verochio
- · Replies 2 ·
Why does a mass on a spring oscillate?
- saltrock
- · Replies 2 ·
Static Equilibrium of a building
- physicsss
- · Replies 3 ·
Magnitude and direction question
- Peacehomes
- · Replies 2 ·
Finding mechanical energy and force from potential energy u(x)=-4xe^(-x/4)
- hauthuong
- · Replies 2 ·
Velocity of 0.5kg mass at spring equilibrium at 3Hz with 0.15m amplitude
- compute_a_nerd
- · Replies 7 ·
Finding the Error in Calculating ε
- Yegor
- · Replies 3 ·
Taylor Series/Radius of Convergence - I just need a hint
- DivGradCurl
- · Replies 3 ·
Find Limit of (x^2+1)/(x^2-4x+3) as x->3
- Seldini
- · Replies 6 ·
Where Does a Charged Sphere's Potential Equal a Point Charge's?
- snke_eyes
- · Replies 2 ·
Calculating Error in Energy Measurement with Scintillation Counter
- retupmoc
- · Replies 2 ·
CLUELESS about a Maclaurin series
- DivGradCurl
- · Replies 7 ·
How Do I Calculate a Figure Skater's Final Moment of Inertia?
- Angie913
- · Replies 3 ·
How Is the Moment of Inertia Calculated for a Spherical Shell?
- Lyuokdea
- · Replies 2 ·
Pulling a Tablecloth from Under a Steel Ball
- GingerBread27
- · Replies 6 ·
Moment of inertie of rotor blaes of a helicopter
- SnowOwl18
- · Replies 8 ·
How can I calculate the escape velocity of a projectile from a planet's surface?
- CollectiveRocker
- · Replies 10 ·
How do I generate a random math addition question in Java?
- xLaser
- · Replies 4 ·
Why didn't Bernoulli's equation work for other values of water height?
- CollectiveRocker
- · Replies 5 ·
Why does doubling the mass on a spring quadruple the potential energy?
- Gfoxboy
- · Replies 14 ·
Net charge, electric force, and electric field homework problems
- Mild
- · Replies 2 ·
Draw Acceleration Vectors for Constant Velocity Diagram
- UrbanXrisis
- · Replies 3 ·
River Crossing: Solving for Time with Jon's Boat Speed and River Current
- cubs1908
- · Replies 4 ·
Is gravity the source of Earth's centripetal force?
- UrbanXrisis
- · Replies 4 ·
PHysics PHysics Physics Physics Torque
- envscigrl
- · Replies 2 ·
Electric field strength to support an electron and proton acceleration
- fishboy39
- · Replies 2 ·
Integral of 1/(1+cos x) from 0 to π/2
- Leaping antalope
- · Replies 9 ·
Direction of velocity change from decreasing speed
- UrbanXrisis
- · Replies 3 ·
Solving Blocks and Springs on a 15m Ledge: Energy, Velocity, Distance
- Soaring Crane
- · Replies 2 ·
Hi, quick problem regarding emission of gamma ray.
- teclo
- · Replies 4 ·
Equation of the plane equidistant from two points
- sonya
- · Replies 2 ·
Coefficient of static friction from car skidding on circular track
- Double A
- · Replies 9 ·
Is My Technique Correct for Solving 2nd Order Nonlinear Differential Equations?
- j_reez
- · Replies 8 ·
Photons entering the eye from an LED at 0.20 m
- saltrock
- · Replies 4 ·
How Do You Solve Exponents Like X^3 + X^5 = 0?
- nightanole
- · Replies 5 ·
Autotransformer with 240V source and 500:1 turn ratio
- radjan
- · Replies 2 ·
Speed of Ball Attached to Horizontal Cord
- Soaring Crane
- · Replies 2 ·
Calculate Normal Force Exerted on Hands During Push-Ups
- SnowOwl18
- · Replies 4 ·
How Can Radial Acceleration Equal 9.810 m/s² at a Specific Time?
- dudgey
- · Replies 2 ·
Find the frequency of a voltage generator
- JamesL
- · Replies 2 ·
Calculating Maximum Safe Depth for Submarine Windows
- Spectre5
- · Replies 10 ·
What is the optimal angle for minimizing work on an inclined plane?
- tricky_tick
- · Replies 2 ·
Conservation of momentum cannon problem
- gaborfk
- · Replies 3 ·
No Physics Tutor Today so I'm Desperate
- rooster_17
- · Replies 3 ·
How to read multiple floating point numbers into an array in C
- tandoorichicken
- · Replies 2 ·
Normal distribution call centre wait times above 30 seconds
- xargon
- · Replies 2 ·
Rate of change of distance from home plate in baseball diamond
- Shay10825
- · Replies 2 ·
Questions about simple pendulum
- buffgilville
- · Replies 2 ·
Calculating the Landing Positions of Two Cubes on a Frictionless Incline
- Maskkkk
- · Replies 10 ·
Solving for Volume and Mass Absorption Coefficients in Foggy Astrophysics Class
- stuffy
- · Replies 2 ·
Finding the Minimum Frictional Force for a Ladder in Equilibrium
- Coldie
- · Replies 5 ·
Solving Physics Lab Report Questions
- SpatialVacancy
- · Replies 3 ·
How Fast is the Skier Traveling Before Landing?
- benji
- · Replies 3 ·
Convergence of a Series with the Ratio Test
- Alem2000
- · Replies 4 ·
What angle does the vector angular momentum make with the axle
- rykirk
- · Replies 2 ·
Work done on a ball moving in a horizontal circle at constant speed
- PhysicsNovice
- · Replies 14 ·
Understanding Diode Output Waveform Reversal
- student1938
- · Replies 3 ·
Calculating Distance from Center of Earth to Point with 0.50g Acceleration
- envscigrl
- · Replies 3 ·
What was the average velocity and speed of the car?
- wogdogg
- · Replies 3 ·
Calculating Net Force on an Object Moving Up an Incline
- Format
- · Replies 7 ·
What angle should movers set their truck ramp to minimize work?
- tricky_tick
- · Replies 2 ·
What is the work done against the spring force in joules?
- smile97
- · Replies 2 ·
Static friction limits for object on rotating turntable at 33 1/3 and 45 rpm
- Flinthill84
- · Replies 11 ·
Wave Amplitude and Knot Movement
- Hughey85
- · Replies 3 ·
What Is the Acceleration of Two Blocks on Inclined Planes?
- jhson114
- · Replies 2 ·
Making Glucose vs. Breaking Glucose
- Mk
- · Replies 4 ·
Solving a Puzzling Momentum Problem
- Canuck156
- · Replies 5 ·
Understanding Rf Values for BIO Lab
- xLaser
- · Replies 3 ·
What Causes the Difference in Calculated Angles in Inelastic Collision Problems?
- teknodude
- · Replies 2 ·
Can't figure it out.(Force of tension)
- stealthking
- · Replies 4 ·
Atwood machine with 9kg and 6kg masses
- UrbanXrisis
- · Replies 7 ·
Solving Integral for Falling Ball in Shampoo: dv/v
- UrbanXrisis
- · Replies 4 ·
How Do You Solve Complex Pendulum Problems Involving Tension and Angles?
- skivail
- · Replies 3 ·
Calculating Time to Complete 10,000 m Run in 30 Minutes
- miscellaneous
- · Replies 6 ·
Statistics: The W's of US Death Estimate (2005-2050)
- Shay10825
- · Replies 5 ·
Time to lift car with 250-W hydraulic jack
- sp00ky
- · Replies 2 ·
What Happens to Angular Speed When You Move on a Merry-Go-Round?
- Bambic87
- · Replies 2 ·
Why Does My Calculation of Gravitational Force Keep Showing as Incorrect?
- saugei
- · Replies 4 ·
How to find the values of x in the equation (1)?
- mspaic
- · Replies 22 ·
Block on ice and angled rope friction problems
- HawKMX2004
- · Replies 2 ·
What is the volume of the secret cavity in this submerged sculpture?
- skonstanty
- · Replies 2 ·
Concrete Blocks vs Sheetrock: Which is the Better Heat Insulator?
- seve
- · Replies 2 ·
How to understand equations of simple harmonic motion
- rad0786
- · Replies 2 ·
Calculating Final Velocity: 1.5kg Cart with 85g Balls vs 255g Ball at 3.5 m/s"
- dishoom
- · Replies 2 ·
The derivative of 4^x + 3^x + 9^-x would be zero.
- EvilPony
- · Replies 3 ·