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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Free fall and one other question
- wonger
- · Replies 1 ·
What Is the Drag Force on a Sky Diver at Different Speeds?
- africanmasks
- · Replies 3 ·
Find the maximum potential difference that can be applied to a capacitor
- staticd
- · Replies 3 ·
Expressing a wavelength equation in linear form; k must be determined via slope
- General_Sax
- · Replies 2 ·
Calculating the Distance of a Ball Kicked Off a Cliff
- RiversAlone
- · Replies 2 ·
Spring and block of mass problem
- tigerlili
- · Replies 6 ·
Work done on an object being lifted
- Dan Feerst
- · Replies 4 ·
Circular motion with respect to south pole
- duxy
- · Replies 3 ·
Finding EMF and current when a circular coil is reformed into a square coil
- sandycow
- · Replies 2 ·
Ball kicked straight up from 1 m: max height, time to ground, projectile motion
- maiamorbific
- · Replies 3 ·
Finding normal force for box sliding down wall at constant speed
- xstetsonx
- · Replies 8 ·
Conservation of momemtum - skydiver letting go of a moving glider
- indietro
- · Replies 3 ·
Coefficent of kinetic friction
- spiegalr
- · Replies 1 ·
Where does energy go when an inductor circuit switch opens
- JDiorio
- · Replies 3 ·
Finding kinetic friction and acceleration in a two-block system
- Filip89
- · Replies 3 ·
Free body diagrams and adding forces
- gbedenba
- · Replies 7 ·
Electron accelerated through 12,000V potential difference
- chunkytuna21
- · Replies 2 ·
Calculating Distance Between Ions in Sodium Chloride Crystal Structure
- 1irishman
- · Replies 3 ·
How Much Should a Person Weigh to Depress a Diving Board by 4cm?
- haroldtreen
- · Replies 1 ·
Induced EMF on a primary coil by a secondary coil
- KaiserBrandon
- · Replies 1 ·
Banked curve with friction: finding speed range for a 940 kg car
- glockstock
- · Replies 1 ·
Force on pilot at bottom of circular loop in airplane dive
- glockstock
- · Replies 2 ·
Weight on an elevator question torturing me
- mr.coon
- · Replies 2 ·
Solving the Forces on a Frictionless System
- CaptFormal
- · Replies 2 ·
Calculating the Maximum Height and Impact Speed of a Thrown Stone
- CaptFormal
- · Replies 8 ·
Hooke's law (Don't know what I am missing)
- raiderIV
- · Replies 4 ·
Find coefficient of kinetic friction?
- pcwolff
- · Replies 5 ·
Nuclear decay: which fragment has more momentum, speed, or kinetic energy?
- karis
- · Replies 2 ·
Centripetal Acceleration of pulsar
- LeakyFrog
- · Replies 1 ·
When do I add or subtract friction in work-energy problems?
- GrandMaster87
- · Replies 1 ·
Hi two phys prob about Newton's law
- stanton
- · Replies 1 ·
Net torque on a disk with inner and outer radii
- minikk
- · Replies 1 ·
Solving problems usng conservation of energy
- tutojean
- · Replies 1 ·
How Long to Climb Three Flights of Stairs?
- luvlybug1025
- · Replies 3 ·
Motor boat velocity with scoop lowered into water
- UFeng
- · Replies 21 ·
Minimum Force Required to Keep 2 Blocks Sliding on Frictionless Surface
- r34racer01
- · Replies 8 ·
Electrostatic potential problem (got 1/3) correct
- hitman0097
- · Replies 3 ·
Check work on simple Energy problem
- Nivlac2425
- · Replies 2 ·
What is the speed of a gymnast's center of mass at the bottom of a swing?
- pharmguy
- · Replies 1 ·
Orbital Period and Velocity Question
- Lynn311
- · Replies 2 ·
Calculating the electric field of a single charge
- FilthyMove
- · Replies 2 ·
How many radians does a tire rotate over 60,000 miles?
- sowmit
- · Replies 1 ·
Solving Projectile Problems: Range and Time in Air Calculations"
- Leo34005
- · Replies 1 ·
What Does SI Units of Nitrogen Masses Mean in Scale Height Calculations?
- Breedlove
- · Replies 1 ·
How Is Force Calculated in Trigonometric Free Body Diagrams?
- SLStudent
- · Replies 1 ·
Calculate Weight Component on Inclined Plane
- SLStudent
- · Replies 3 ·
Center of mass of metal square with a hole
- Elbobo
- · Replies 1 ·
Magnitude of point P center (I'm Stumped)
- Physrook 09
- · Replies 2 ·
Two boxes on a 38-degree ramp connected by string
- zaga04
- · Replies 9 ·
Solving the Displacement Problem: Find Magnitude of Total Displacement
- Ripcurl
- · Replies 4 ·
What is the magnitude of the net force on a 3.40kg mass at t = 2.10 seconds?
- Chuck 86
- · Replies 8 ·
Tension and acceleration for 3.4 kg and 5.5 kg masses on a pulley
- Chuck 86
- · Replies 7 ·
Car pushing truck with 4500 N ground force
- JoshMP
- · Replies 3 ·
What Is the Minimum RPM Needed for Safety on This Amusement Park Ride?
- JoshMP
- · Replies 9 ·
How Do You Calculate the Impulse Received by a Football During a Kickoff?
- Sumbhajee
- · Replies 1 ·
Snell's law, critical angle, and angle of incidence
- reb659
- · Replies 6 ·
Cheerios and Wheaties boxes accelerating together with friction
- DrDanger
- · Replies 9 ·
Pulling a crate uphill with friction ()
- killat943
- · Replies 2 ·
Physics Nuclear Reaction Mechanics Question
- rkd1312
- · Replies 26 ·
What Determines the Speed and Frequency of an Electron in a Magnetic Field?
- missyc8
- · Replies 1 ·
104.5 degree triangle w/ 2 equal legs, need the 3rd leg's length
- CocoonOHorror
- · Replies 5 ·
Musical Acoustics, Combining frequencies of two instruments
- mhmil
- · Replies 2 ·
Gravity/Charged Particle Equilibrium
- bbhill
- · Replies 2 ·
Solving for Work in a Hanging Crate System
- CaptFormal
- · Replies 2 ·
Rocket Lab, Finding Initial Velocity, Height Given time.
- Hellsing834
- · Replies 9 ·
Dividing vectors in dot products
- bossini
- · Replies 1 ·
Kinematics(Find Distance Between 2 curves)
- DarkPhoenix
- · Replies 1 ·
Calculating Mechanical Energy Lost on Slide for 25.0 kg Child
- Sumbhajee
- · Replies 4 ·
Weightlessness on a Ferris Wheel
- Sumbhajee
- · Replies 7 ·
Intergal? work done by a non constant force
- Chuck 86
- · Replies 5 ·
Equivalent Resistance Between Terminals
- chunkytuna21
- · Replies 1 ·
Circuit loop entering magnetic field with 16-N force and 6.0-A current
- Physrook 09
- · Replies 2 ·
Centripetal acceleration of shuttle 400 km above Earth
- warfreak131
- · Replies 2 ·
Calculating Tension in Suspended Mass
- shiney612
- · Replies 3 ·
Notation question - what does mean?
- Pyroadept
- · Replies 1 ·
How Do You Determine the Period of a Non-SHM System Using Energy Equations?
- Physicist_FTW
- · Replies 5 ·
Airplane runway decision time with acceleration and deceleration
- booder111
- · Replies 1 ·
Time to lift 1000kg by 1m with 50W of power
- JDM555
- · Replies 6 ·
Angular Acceleration and Projectile Motion
- MyNewPony
- · Replies 2 ·
How Far Does the Block Slide Before Coming to Rest?
- renaldocoetz
- · Replies 3 ·
Will a car stop before reaching a broken bridge 150 m away?
- ash312
- · Replies 31 ·
How Does Orientation Affect Magnetic Forces in a Current Loop?
- TwinGemini14
- · Replies 1 ·
Angular speed and acceleration of a tipping rod
- renaldocoetz
- · Replies 4 ·
How is the Energy for Water Evaporation Calculated in a Student Experiment?
- DarkPhoenix
- · Replies 1 ·
Angular Speed/ Acceleration Problem
- ~Sam~
- · Replies 4 ·
How Does the Conservation of Energy Principle Apply to a Gymnast's Swing?
- tutojean
- · Replies 1 ·
How Is the Throat's Cross-Sectional Area Determined Using Bernoulli's Principle?
- lnbanzon
- · Replies 1 ·
Solving a Uniform Beam Supporting Problem
- HoneyPi
- · Replies 3 ·
Potential Difference of C2: 9V Capacitors in Series
- tag16
- · Replies 3 ·
Why Do Beats Occur When Tuning String Instruments?
- mhmil
- · Replies 1 ·
How to Calculate Final Volume and Pressure in Isothermal Process"
- mrmonkah
- · Replies 5 ·
Dynamics of Uniform Circular Motion Quesiotn
- kraigballa
- · Replies 5 ·
Ferris Wheel acceleration Problem
- JoshMP
- · Replies 9 ·
Derivation of y(x,t)=Asin(kx-wt)
- Point Conception
- · Replies 2 ·
Find Acceleration Experimentally
- Power of One
- · Replies 1 ·
Quantum Mechanics of wave function and probability rationals
- xxxxxx
- · Replies 1 ·
Finding maximum kinetic energy with variable force F(x) = 7.6 - x²
- tigerlili
- · Replies 2 ·
Conservation of momentum problem in variable.
- CandyApples
- · Replies 2 ·
Find Initial Speed of Porsche Using Inelastic Collision
- 7skk
- · Replies 2 ·