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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Electrical resistance of a paraboloid.
- BlackWyvern
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Uncovering the Mystery of Kinetic Energy
- imortaltoad
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What is the Effect of Mass on Earth's Angular Velocity?
- temaire
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Construct a possible graph for the x velocity versus time, v_x(t)
- 1man
- · Replies 1 ·
Solving Thevenin Equivalents: Techniques and Steps
- Trentonx
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Mass/escape velocity of a comet
- Quincy
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Solving a Difficult Force Problem with Multiple Unknowns
- Tony Zalles
- · Replies 6 ·
How Do You Calculate the Average Rotational Speed of a CD in Radians per Second?
- crybllrd
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Does the number of turns on a loop affect the current or magnetic field?
- anonymousphys
- · Replies 3 ·
Question on finding the frequency of a sound wave
- theskyisgreen
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If you know the wavelength of light emitted by a laser how can you know
- kashiark
- · Replies 7 ·
Electricity: Which globe uses most energy?
- Astar
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Infared WAvelengths in transition through energy levels
- skibum143
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Force on loop of wire pulled through magnetic field
- brianfast
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Gravitational field strength unit
- xdeanna
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Destructive Interference Question
- adhoward24
- · Replies 1 ·
Help with kinetic energy/potential energy ratio
- Princess19
- · Replies 25 ·
What Wavelength Does a 100mW Laser Deliver 3.5x10^17 Photons in One Second?
- Jethom18
- · Replies 1 ·
The 6.9 N weight is in equilibrium under the
- KB94
- · Replies 1 ·
To find speed of a plane when position of radar is given
- hermy
- · Replies 7 ·
Find Magnetic Field Using Torque Equation (t=nBIAcos)
- centripitacal
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Calculating the Flight and Landing of a Golf Ball Hit with an Inclined Force
- the pro
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Vibrations and Waves: Mass on Incline problem
- huybinhs
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Max static friction witout mass or normal force?
- Gersty
- · Replies 9 ·
Simple force/energy/work problem
- xecure
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What was the acceleration of the rocket?
- fcb
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What is the total work required to drive a screw into a block of wood?
- smhippe
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Finding gravitational acceleration
- BTurner90
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If a skier jumps of the peak of a straight slope, when does it intersect?
- RoganSarine
- · Replies 17 ·
Capacitance of a landing plane in a thunderstorm
- sethman737
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Configuring the restoring force for a pendulum equation
- outdoorjunkie
- · Replies 4 ·
Finding Tension in a Frictionless Ladder
- Daniiel
- · Replies 28 ·
Interference pattern formed by an air wedge.
- semc
- · Replies 3 ·
Equation of uniformly accelerated motion
- fcb
- · Replies 12 ·
Work - energy theorem and conservation of momentum question
- hermy
- · Replies 5 ·
The potential energy of the molecules
- fawk3s
- · Replies 1 ·
How to Find the Resultant Vector of this Quadrilateral ?
- 5416339
- · Replies 5 ·
Force Vector Problem: Find Magnitude & Direction of F3
- dwagz
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Forces Explained: Car Collides with Wall
- womatama
- · Replies 1 ·
Photon Output of 100kW FM Radio Transmitter
- phy_freak
- · Replies 3 ·
Rotating Conducting Cylinder in B - Induced Voltage
- xcvxcvvc
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Horizontal range of a projectile
- dink87522
- · Replies 1 ·
Calculating Heat Absorbed When Melting 15g Lead
- Mathys
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Angular Velocity Calc: Cross-Shape Object, KE, MOI, Energy
- jscherf92
- · Replies 1 ·
Constant angular acceleration of a rotating wheel
- jscherf92
- · Replies 1 ·
Calculating Doppler Shift with Ship Sonar and Moving Targets
- jackleyt
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Rearranging Equation: Make A Subject - Ideas?
- missyfit
- · Replies 10 ·
Angular momentum in projectile motion of rock of mass
- mybrohshi5
- · Replies 1 ·
Closing a Circuit Homework: Solving for R_eq, I, & Delta V
- dmsgo89
- · Replies 2 ·
Calculating Force, Work & Energy on Box Dragged at Angle
- cperfetto91
- · Replies 15 ·
Understanding Torque in a 2D Plane
- mybrohshi5
- · Replies 5 ·
How to Determine Current Direction in a Multi-Battery Circuit?
- Sky.Anthony
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Projectile Motion Review Work Check
- jacksonpeeble
- · Replies 1 ·
Calculating Relative Motion on a Moving Sidewalk
- SgtSniper90
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Can Pair Production Occur if Positron and Electron Have the Same Rest Energy?
- Kiwithepike
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Coriolis force on rotating plane
- Ayotte
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Find the Coefficient of Kinetic Friction for a 40N Case
- Mar17
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Centripetal Force and Tangential Velocity
- x0ji11y
- · Replies 1 ·
Oscillations Spring constant Newton's second law
- bfpri
- · Replies 1 ·
Solving a Homework Statement: Stone with Weight Q
- lorik
- · Replies 1 ·
How Do You Calculate Force for a Marble to Complete a Loop in a Rollercoaster?
- Breanne
- · Replies 4 ·
Moderating Neutrons: Calculating Kf/Ki Ratio
- Tanahagae
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How Much Potential Energy Does Water at the Top of a 200ft Waterfall Possess?
- Windseaker
- · Replies 6 ·
Calculating Forces on a Cantilever: Physics Homework Problem
- smhippe
- · Replies 1 ·
Discover the Depth of an Opaque Cylindrical Tank with this Optics Question
- semc
- · Replies 2 ·
Calculating Speaker Frequencies Using Speed of Sound at Best Buy | Homework Help
- adhoward24
- · Replies 1 ·
Calculating Secondary Amps in Step Up Transformer Problem
- sp1974
- · Replies 7 ·
Time Constant / Capacitor Charge Time
- Ascetic Anchorite
- · Replies 19 ·
PERE'S LAW AND THE FREQUENCY OF ELECTRON BEAM IMPACTS ON METAL
- promiseskept
- · Replies 3 ·
Frequency of sound coming from speakers
- Revvi
- · Replies 1 ·
Calculating Self-Inductance and Capacitance in Parallel Plate Transmission Lines
- malindenmoyer
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What is the force that the car exerts on the driver?
- smh745
- · Replies 1 ·
Field strength between two wires
- Maria H
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Coupled oscillators - mode and mode co-ordinates
- joriarty
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Work-Kinetic Energy Theorem applied to a Spring Force
- biker.josh07
- · Replies 4 ·
How Should the Spring Constant k Affect the Efficiency of a Catapult?
- pcgmks
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Calculate impulse force in inelastic collision
- Point Conception
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I don't understand this dynamics question?
- Cokebottle
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What Happens to Interference Patterns When an Air Wedge is Reversed?
- caliver
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Solving Basic Statics Homework: 17.0 & 3.5 Positive/Negative?
- TreePerson
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Transverse wave through a wire, and tension.
- jmm5872
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How Do You Choose the Right Lens for Photographing a Building at 490m?
- Maria H
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Frictionproblem Yoyo on a horizontal plane.
- center o bass
- · Replies 11 ·
Understanding the Forces at Play to 3D Modeling Fnety Force
- nmegabyte
- · Replies 8 ·
Calculating Time Constants for RC and RL Circuits | Simple Physics Homework Help
- jayz618
- · Replies 4 ·
Archimedes Principle Quick Question
- jumbogala
- · Replies 4 ·
Physics multiple choice questions
- thisisfreaky
- · Replies 1 ·
Nuclear Model - Expression for Total Energy [Modern Physics]
- twotaileddemon
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Constant acceleration proof, dv/dt=a
- Beamsbox
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Is the Linear Attenuation Coefficient Proportional to Energy?
- timmo567
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Minimum Length for Safe 1000kg Plane Landing on 2000kg Barge
- sean-820
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What is the Speed of Galaxies by Redshift?
- iamthemeg
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Moment of Inertia: Calculating the MOI of a Rolling Can on an Incline
- Paymemoney
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How Much Force Must the Biceps Generate in an Isometric Exercise?
- mwoods18
- · Replies 1 ·
Kibble problem (linear motion chap. 2)
- levilevi
- · Replies 5 ·
Magnetic Field between two wires
- SamTsui86
- · Replies 2 ·
Spring Constant given mass, and equivalent mass in free fall from fixed height.
- wzx7410
- · Replies 3 ·
Speed and Speed of Light and Decay
- ihearyourecho
- · Replies 16 ·
Understanding Current Flow in Parallel Circuits with Inductors and Resistors
- semc
- · Replies 2 ·