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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Spring oscillation in accelerating elevator and inverted helium balloon pendulum
- Jacob87411
- · Replies 5 ·
Why are the left cosets of {1, 11} in U(30) equal to H, 7H, 13H, 19H?
- semidevil
- · Replies 3 ·
Finding speed ratio at perigee and apogee for Explorer VIII satellite
- BbyBlue24
- · Replies 7 ·
Will a 5 kg Block Slide on a 50 Degree Incline Plane? Calculation and Answer
- tony873004
- · Replies 5 ·
Calculating Horse Power: How Many Bundles of Shingles Can a Horse Hoist?
- UrbanXrisis
- · Replies 2 ·
Moment of Inertia for three rods
- hL
- · Replies 2 ·
What is the force work done by force F along OAC, OBC, OC
- UrbanXrisis
- · Replies 13 ·
2 challenge problems for tommorrow(dec 7)
- Skotster
- · Replies 2 ·
Two limited integration questions
- hhegab
- · Replies 3 ·
Solving Liquid Flow Problem: Speed in Lower Pipe
- thursdaytbs
- · Replies 2 ·
Why combining neckties at average price loses $10 in profit
- StaRz
- · Replies 2 ·
Find the time required for the boat to slow to 45 km/hr
- king_naeem
- · Replies 2 ·
Solving for the Target's Mass in a One-Dimensional Elastic Collision
- physics87
- · Replies 2 ·
Measure the resistance of a coil of wire using a voltmeter/ammeter
- PakiPie
- · Replies 2 ·
Calculate Expectation Value of Particle in Infinite Box
- paul11273
- · Replies 7 ·
What is the speed of the block in this compressed spring problem?
- BlackMamba
- · Replies 6 ·
Acceleration of Falling Mass Attached to 5cm Pulley
- hannibal
- · Replies 2 ·
How can I calculate the speed of a bullet using a ballistic pendulum?
- mikep
- · Replies 2 ·
Why do we use a high voltage and not a high current?
- Pseudo Statistic
- · Replies 2 ·
Very close to being finished, me with these 2 problems
- WillP
- · Replies 2 ·
Solving Calculus Equations with Curves Passing Through the Origin
- roger
- · Replies 4 ·
Thermal conductivity of neoprene
- Sophie_King
- · Replies 2 ·
PHYSICS 30 - The Nature Of Matter
- Invisible
- · Replies 2 ·
Water shot from a hose reaches 2.5 m height
- Jacob87411
- · Replies 8 ·
How to Find Equations for Lines Normal to y=2x/(x-1) and Parallel to 2x-y+1=0?
- ashleyk
- · Replies 6 ·
Stone-Weierstrass theorem problem
- cogito²
- · Replies 2 ·
Which Cast Iron Skillet Requires More Heat?
- krazeekid7
- · Replies 3 ·
Simplifying rational expression with restrictions
- aisha
- · Replies 5 ·
What to focus on for calculus final on limits and derivatives?
- ziddy83
- · Replies 3 ·
Fit squares of sides 1, 4, 7, 8, 9, 10, 14, 15, 18 into a rectangle
- GuMdRop
- · Replies 2 ·
Can You Find a Continuous Function That Takes Each Value Exactly Three Times?
- matrix_204
- · Replies 2 ·
What is the best approach for Integration by parts?
- Tom McCurdy
- · Replies 27 ·
How Far Does the Mass Fall Before the Dime Slides Off the Disk?
- kornwestheim
- · Replies 8 ·
Boy and girl velocities after snowball toss on ice
- simpreza2
- · Replies 6 ·
What Is the Required Angle for a Block to Slide Up an Inclined Plane?
- mxtiger67
- · Replies 11 ·
How can I calculate the angular momentum vector of a rotating merry-go-round?
- Lorbersf
- · Replies 2 ·
Two more hard probability questions
- ms. confused
- · Replies 8 ·
Filling a Book Shelf: The Work Required
- Rapta3
- · Replies 2 ·
Solving Orbital Radius Problem: Reduce Radius by 1.09 km
- jbot2222
- · Replies 2 ·
Finding Extreme Values of Functions Without Graphing or Calculators
- Shay10825
- · Replies 11 ·
How Do You Calculate the Initial Acceleration of a Rod's Center of Mass?
- WillP
- · Replies 2 ·
Proving three trigonometric identities
- xLaser
- · Replies 4 ·
What Is the Magnetic Field at the Center of a Square Wire Loop?
- rothrock98
- · Replies 6 ·
Heat required for isochoric heating of helium gas
- Enoch
- · Replies 2 ·
Solve an Ellipse Product Min Problem with LaGrange
- MatSci
- · Replies 6 ·
Different answer from teacher's .
- dncnqn
- · Replies 2 ·
Differential Equation w/ Power Series Solution
- DivGradCurl
- · Replies 4 ·
What Is the Coefficient of Friction for a Dry Pig on a 27-Degree Slide?
- idontgetit
- · Replies 2 ·
What is the Average Acceleration of a Plane Making a Gradual Turn?
- Elphaba
- · Replies 5 ·
What is the final charge on the capacitor in this circuit?
- joshanders_84
- · Replies 2 ·
Sticky collision formula for conservation of momentum
- Afro_Akuma
- · Replies 9 ·
25N force opposite to displacement on a box
- dragon84
- · Replies 4 ·
How Can I Get Help with Physics and Calculus Problems?
- hd28cw
- · Replies 2 ·
Deriving an Expression for a Sinusoidal Wave on a String
- krazeekid7
- · Replies 2 ·
How Do I Find a Wave Function for a Neutron in a Double Slit Experiment?
- bannadonna
- · Replies 1 ·
Isomorphism between Q[x]/(x-1) and Q[x]/(x-2)
- Palindrom
- · Replies 2 ·
What are the steps to calculate uncertainty in quantum mechanics?
- jsundberg
- · Replies 7 ·
Why does (sin x)/x³ approach infinity as x approaches 0?
- mad
- · Replies 7 ·
How to Simplify a Boolean Reduction Problem?
- DethRose
- · Replies 8 ·
How many sonic booms from an aircraft at 5 times the speed of sound?
- ponjavic
- · Replies 2 ·
How Do You Calculate Work Done by Gas in Thermodynamics?
- Enoch
- · Replies 2 ·
Hooke's Law and Simple Harmonic Motion
- Soaring Crane
- · Replies 5 ·
Solving (25-x) / 2.6 = (0-x) / .2718
- pitchharmonics
- · Replies 2 ·
Calculating KEf for Two Connected Boxes - Frictionless Surface
- simpreza2
- · Replies 6 ·
Me again (ideal gas/free expansion) soon
- don_anon25
- · Replies 2 ·
Calculating Work and Average Force in a Meteor Impact on Sand
- jbot2222
- · Replies 2 ·
How to find efficiency of a pulley system lifting a 5kg box
- SummerSweety30
- · Replies 6 ·
Finding spring constant for mass compressing and rebounding with friction
- Heart
- · Replies 15 ·
Need Homework Help For A.P. Physics 11th Grade
- Kimorto
- · Replies 5 ·
Which 3 elements from {p, p+q, pq, p^q, q^p} form a group under addition?
- mansi
- · Replies 5 ·
How can i evaluate trig functions?
- preet
- · Replies 2 ·
What is the frequency of the oscillation?
- physicsss
- · Replies 9 ·
Producing hydrogen from water with solar electricity
- yawie
- · Replies 2 ·
How Does Slit Spacing Affect Light Diffraction Patterns?
- cuti_pie75
- · Replies 1 ·
Trouble Understanding Torque? Steps to Follow!
- triden
- · Replies 4 ·
How Do You Calculate the Equilibrium Angle of a Square Coil in a Magnetic Field?
- ldzcableguy
- · Replies 2 ·
Simple harmonic motion mass on a spring
- saltrock
- · Replies 2 ·
Calculating Energy and Speed in a 2-Dimensional Roller Coaster
- HawKMX2004
- · Replies 6 ·
Solving 3x/(x²-1)=x/(x+1)-4
- aisha
- · Replies 6 ·
How Does Mass Affect Momentum and Kinetic Energy in Motion?
- senseandsanity
- · Replies 2 ·
Vertical asymptotes, intercepts, domain and range of f(x)=1/(4x²-1)
- aisha
- · Replies 2 ·
Solve log_b(xy): Express in terms of p, q
- footprints
- · Replies 4 ·
Calculating Displacement and Speed in a Standing Wave on a String
- Lakers08
- · Replies 2 ·
How Is the Average Force Calculated in an Elastic Collision with a Wall?
- tigerseye
- · Replies 2 ·
Finding x: Block Sliding on Spring SHM
- physicsss
- · Replies 3 ·
Finding reciprocals of y=x² and y=√x and graphing them
- Raza
- · Replies 7 ·
Are My Calculations on Ladder Equilibrium and Torque Correct?
- buffgilville
- · Replies 4 ·
What is the moment of inertia of the ball about the axis of rotation?
- buffgilville
- · Replies 5 ·
Fluid Pressures on a Vertical Surface, Oh My
- Gaplant
- · Replies 4 ·
Momentum Change: Car vs. Truck Collision Comparison
- Jatsix30
- · Replies 3 ·
Converting orbital period from hours to seconds for gravity calculation
- triden
- · Replies 7 ·
Sample conceptual questions for classical mechanics oral exam
- Hypnotoad
- · Replies 2 ·
Why Does Hess's Law Suggest a Different Enthalpy Change Than My Experiment?
- Link
- · Replies 2 ·
Microstates of 4 particles with total energy 6e: distinguishable, bosons, fermions
- frankR
- · Replies 12 ·
Energy for Orbits: 500km Above Earth's Surface
- ice
- · Replies 4 ·
Work done by friction, gravity, and normal force on an inclined plane
- lostinthespiral
- · Replies 2 ·
Work & Friction: Solve for Force, Work, & Speed
- lostinthespiral
- · Replies 3 ·
Block on spring with kinetic friction and oscillating mass-spring system
- lostinthespiral
- · Replies 12 ·
Suspension cable exerts no net horizontal force on the towers?
- bobwoz
- · Replies 2 ·
Cathode ray tube deflection with different accelerating and deflecting voltages
- gillgill
- · Replies 3 ·