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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How Long Does It Take for a Feather to Fall 1 Meter on the Moon?
- bramill
- · Replies 5 ·
Designing a Balsa Wood Beam: Max Strength, Min Weight
- Struggling
- · Replies 1 ·
Stone thrown at 45° on a 5° downward slope
- Atilla1982
- · Replies 5 ·
Refraction of Light: Understand Physics Behind Bending Light
- Spastik_Relativity
- · Replies 1 ·
2 questions on Motion along a straight line
- nimaim
- · Replies 2 ·
Solving a Probability Problem: Purchasing Defective TVs for a Hotel
- leright
- · Replies 1 ·
Calculating Laplace Transform of g(t)=x(2t-5)u(2t-5)
- mathrocks
- · Replies 4 ·
Alpha particle equilibrium near line and plane charges
- RhysticGenesis
- · Replies 1 ·
Trying to find the voltage of a circut
- LocationX
- · Replies 1 ·
Isolating time from the kinematic equation x = v₀t + ½at²
- rockmorg
- · Replies 1 ·
Relative Motion: Sum or Difference of Vectors? - Sarahchichi
- Sarahchichi
- · Replies 2 ·
Find force from a function of displacement?
- beanryu
- · Replies 1 ·
Understand Laplace alot better now
- mathrocks
- · Replies 3 ·
Understanding Acceleration: How a Speed Skater Slows Down on Rough Ice
- vbplaya
- · Replies 1 ·
Finding Total Vector Displacement for a Multi-Directional Trip
- chris_soft_engineer
- · Replies 5 ·
How Do You Calculate Tension and Acceleration in a Two-Pulley System?
- lily_stein
- · Replies 2 ·
How to Calculate Frictional Forces and Acceleration in a Physics Problem
- fiestytig
- · Replies 2 ·
I with my design engineering homewrk
- vondutchgurl
- · Replies 2 ·
Calculating the Moment of a Resultant Force
- physicsss
- · Replies 12 ·
Solving Newton's First Law: Spider Attached to Two Threads
- brad sue
- · Replies 2 ·
Response of System to sin(3t) and tri(t-1) Inputs
- mathrocks
- · Replies 5 ·
Calculating sup, inf, limsup, liminf, and limit points of a sequence
- *melinda*
- · Replies 2 ·
Can You Prove the Inequality of Supremums Theorem?
- *melinda*
- · Replies 2 ·
More physics kinematics problems
- rockmorg
- · Replies 1 ·
Can a knight make every possible move on an 8x8 chess board exactly once?
- JasonJo
- · Replies 3 ·
What Initial Speed Must Bruce Throw the Bagels for Henrietta to Catch Them?
- R.Dahl
- · Replies 2 ·
What is the height when the object has half its initial velocity?
- rockmorg
- · Replies 2 ·
What is the speed of the car when it hits the tree on a grade of arcsin (1/10)?
- Dorothy Weglend
- · Replies 7 ·
Easy calc 3 question: points on a plane
- meadow
- · Replies 1 ·
Questions about forces on surfaces
- Pseudo Statistic
- · Replies 2 ·
Force following same rules as vectors
- xailer
- · Replies 6 ·
Calculating Coal Usage for a 1000 MW Steam Power Plant
- physicsss
- · Replies 5 ·
How far above the coconut should he aim with his slingshot?
- brad sue
- · Replies 17 ·
How High Would a Pellet Reach if Fired Upward from a Cliff?
- rockmorg
- · Replies 6 ·
Linear stuff: I never get the awnser
- cmab
- · Replies 4 ·
A lead ball is dropped into a lake from a diving board 5.00 m above the water
- bommer
- · Replies 2 ·
Kirchhoff's Rule: Impact of Ammeter Resistance on Total Current?
- tin llenaresas
- · Replies 2 ·
Measuring unknown emf by potentiometer
- tin llenaresas
- · Replies 2 ·
How long does the ball stay in the air before hitting the ground?
- bommer
- · Replies 1 ·
What Metals Have the Best Magnetic Properties for a Physics Project?
- .ryan.
- · Replies 1 ·
Reflecting surface equation using Fermat's principle
- CaptainQuaser
- · Replies 1 ·
Understanding Compressional Forces in a Tripod's Legs
- kidia
- · Replies 5 ·
Finding equilibrium and period for 2y - 5 = sin(144t - 45)
- cscott
- · Replies 7 ·
Kinematics problems: projectile motion and acceleration
- r3dxP
- · Replies 3 ·
Finding transfer function for two-mass spring-damper system
- formulajoe
- · Replies 5 ·
Mass in circular motion on frictionless table
- brad sue
- · Replies 2 ·
Train Acceleration Problem: Finding Final Car Velocity at 190m Distance
- confusedaboutphysics
- · Replies 2 ·
Solve Limit of n(a^(1/n)-1) as n→∞
- jenia_2k
- · Replies 2 ·
Combinatorics-next problem with numbers
- Jurij
- · Replies 6 ·
What is the purpose of trigonometric identities
- chound
- · Replies 3 ·
Egative power indicates an inverse
- gillgill
- · Replies 3 ·
What is the magnitude of the runner's total displacement?
- thschica
- · Replies 6 ·
Velocity Unit: Is 30 m/s^2 an Example?
- IB
- · Replies 5 ·
Human cannonball and projectile motion homework problems
- r3dxP
- · Replies 3 ·
Spaghetti bridge design to hold 10-15 kg
- liv
- · Replies 19 ·
Physics: strange vector hw problem
- oldunion
- · Replies 3 ·
Electric n magnetic field vectors
- benitta
- · Replies 5 ·
Finding power output from press-ups without mass given
- alias25
- · Replies 8 ·
Mass is the amount of matter in a material?
- beginner16
- · Replies 2 ·
Significant Figures and scientific notation
- happykid
- · Replies 3 ·
Newton's third law with ropes and connected objects
- xailer
- · Replies 10 ·
How Does Gauss' Theorem Transform Volume to Surface Integrals?
- dreamfly
- · Replies 2 ·
Solving Geometric Optics Problem: Raising Height of Camera
- eep
- · Replies 4 ·
Where on the X-Axis Does the Electric Field Equal Zero?
- confused1
- · Replies 1 ·
How Does Entropy Change in an Irreversible Adiabatic Expansion of Nitrogen?
- siddharth
- · Replies 15 ·
Finding derivatives of y = x^(a^x), (x+p)^(-1), and rational/trigonometric functions
- mousesgr
- · Replies 6 ·
What is the maximum transverse spread of Mr. Leonelli in his seat?
- quasar987
- · Replies 6 ·
Find the two-digit number BA where 3AB + BA = 4AC
- jacy
- · Replies 2 ·
L'Hopital's rule for solving limit
- mousesgr
- · Replies 4 ·
Motion on Incline: Solving for Velocity
- amcavoy
- · Replies 2 ·
Find value h so the matrix has infinitely many solutions?
- mr_coffee
- · Replies 6 ·
Finding the Magnitude of a Displacement Vector with Multiple Components
- thschica
- · Replies 2 ·
Find Limit: <Undefined,Undefined,6/5>
- Whatupdoc
- · Replies 3 ·
Determining density of spherical cloud by dropping probe and measuring velocity
- pirland
- · Replies 3 ·
Parametric equations for the tangent line
- Whatupdoc
- · Replies 2 ·
Sum of forces does not equal zero
- Cyrus
- · Replies 16 ·
Converting to unit impulse function
- mathrocks
- · Replies 2 ·
Damaged multimeter by putting black probe in A port instead of COM?
- Haftred
- · Replies 2 ·
How do I rearrange Vp = ∛x + 4/3y to make p the subject?
- stepha
- · Replies 6 ·
Solve Easy Physics Question: Height of Freely Falling Object in 1.10s over 26.0m
- blindleaf
- · Replies 3 ·
Average velocity of an arrow shot upward on the moon
- linhthuy256
- · Replies 2 ·
Proof of Limit: $\varepsilon$-$\delta$ Definition
- kidia
- · Replies 2 ·
Will the wavelength decrease when the wave moves from a light string to a heavy
- insertnamehere
- · Replies 4 ·
Record of Travel Problem Guidance
- gasapple
- · Replies 2 ·
Parametric equations for a hyperbolic paraboloid
- Townsend
- · Replies 4 ·
Graph a line through the origin that is parallel to the graph of x+y=10
- modeman
- · Replies 2 ·
Percentage difference of two numbers?
- pivoxa15
- · Replies 3 ·
Finding Electric Field at 35.6 cm from Charge Distribution
- notmetalenough
- · Replies 3 ·
Some physics work, show me what i am doing wrong.
- Pepsi24chevy
- · Replies 2 ·
Projectile motion airplane speed problem
- dethlok777
- · Replies 1 ·
Algebra Confusion: Proving (A+C)*(A'+B)*(B+C) = B*C
- zenity
- · Replies 5 ·
Electric Potential V at Point P: Multiple Choice
- srhly
- · Replies 1 ·
Calculating the Yearly Cost of 131 kW Cooling System
- TSN79
- · Replies 1 ·
Gas equation derivatives, refrigerator work, and heat capacity with P/V constant
- omagdon7
- · Replies 3 ·
Calculating acceleration and tension in a two-mass pulley system
- irrehaare
- · Replies 4 ·
Calculating Tension in a Rope: A 2kg Stone and 1m Radius
- Atilla1982
- · Replies 1 ·
Net force on each side of a heated sealed box with air at 400K
- ice87
- · Replies 3 ·
Water at Niagara Falls cascading at 49.4 degrees below horizontal
- Morokana
- · Replies 2 ·
Where to find a video of a Wilson cloud chamber
- Spastik_Relativity
- · Replies 2 ·