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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Turtle and rabbit racing 1 km: how close can turtle get before rabbit resumes?
- XodoX
- · Replies 1 ·
Calculating Electric Flux Through a Cube with a Non-Uniform Electric Field
- Oblivion77
- · Replies 7 ·
What is the diffrence and similarties
- Maroc
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Elastic Potential Energy and spring
- wallace13
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What is the mirror's focal length?
- jaejoon89
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How Can Range be Increased for a 15-Degree Soccer Ball Projectile?
- afg_91320
- · Replies 5 ·
How Do You Calculate Moments with Levers?
- KINmajor
- · Replies 8 ·
Bubble Hydrodynamics: Find Numerical Solution to Air Bubble at 20m Depth
- Sajmon
- · Replies 5 ·
Man walking forward in canoe at 0.50 m/s relative to shore
- raek
- · Replies 1 ·
Jumping Lab Question ( Kinematics )
- limework
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Why is dq = λR dθ in electric field integration for a charged arc?
- yeahhyeahyeah
- · Replies 3 ·
Hollow sphere rolling up a ramp
- mjolnir80
- · Replies 3 ·
Electric Dipole Moment Vector Calculation
- lacar213
- · Replies 1 ·
How Much Lateral Force Does a 70,000 lbs Truck Exert When Braking?
- SIGNMAN
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Why Does Energy Dissipate When a Tug's Cable Breaks?
- damienr
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Arrow fired at 45° from 3m cliff: find time and range
- brandon d
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Why is steam hotter than boiling water?
- toqp
- · Replies 8 ·
What is the Electric Field at Point P Due to a Uniformly Charged Rod?
- glennpagano44
- · Replies 2 ·
Due in 10 MINUTES (Easy) (Yes/No)
- FAJISTE
- · Replies 4 ·
Due in 10 Minutes PART TWO (Two balls dropping from roof) True/False
- FAJISTE
- · Replies 3 ·
Scales- Weight on a scale in an elevator (True/False) Quick
- FAJISTE
- · Replies 2 ·
Electric fields caused by multiple charges
- lacar213
- · Replies 1 ·
Finding Final Velocities in a Two-Dimensional Collision
- wesDOT
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Finding the third force to balance two known forces
- elitespart
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Voltage direction and power sign in circuit analysis
- Air
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Two-State Paramagnet: 10^23 Elementary Dipoles, Zero Energy
- Vuldoraq
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Which electromagnetic waves travel the fastest in a vacuum?
- stickplot
- · Replies 6 ·
Force exerted by an external electric field
- lacar213
- · Replies 13 ·
Distance a golf ball travels at 15° and 100 mph
- jaglavek
- · Replies 5 ·
Maximum attainable coefficient of static friction
- canza
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Horizontal Tension Between Two Blocks?
- cryptcougar
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Rotating ring supported at a point
- nns91
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Projectile motion (magnitude and direction)
- blazeuofa
- · Replies 4 ·
Maximum velocity of a pendulum bob with 25 cm length and 1 second period
- Basne_Kaled
- · Replies 3 ·
Fence Height for Detached Race Car Wheel at 45m/s
- chrisridgwell
- · Replies 13 ·
At what distance can your eye no longer resolve two headlights?
- limonysal
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Electricity & Magnetic Fields - What do they Resemble?
- stickplot
- · Replies 2 ·
Distance of closest approach of particles
- KillerZ
- · Replies 2 ·
How Much Should the Microscope Be Raised After Adding a Plastic Layer?
- RafaFutbol
- · Replies 2 ·
EM wave polarization and antenna orientation
- MEAHH
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What Is the Angle of Inclination for a Car on a Banked Track?
- chrisridgwell
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AnswerSolving Electrostatic Force: Find Charge & Mass
- nic4birds
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What is the magnitude of the tow bar force on the skier?
- DeltaIceman
- · Replies 2 ·
Equilibrium temperature of cold aluminum in warm water
- Brit412
- · Replies 1 ·
How Do You Calculate Tension in Multiple Cords Supporting a Single Mass?
- enantiomer1
- · Replies 1 ·
Applied Force Vs. tension Force
- enantiomer1
- · Replies 1 ·
F=ma problem, I feel retarded because I can't get it
- phx1
- · Replies 1 ·
Calculate Charge on Ball Given Electric Field and Mass
- 1517279
- · Replies 5 ·
The Minimum Angle for No Sound Transmission Through a Doorway
- jemstone
- · Replies 1 ·
What Range of Speeds Allows a Car to Safely Navigate a Wet, Banked Curve?
- botab
- · Replies 1 ·
Calculate the Depth of a Well: u, a and Time Given
- milto
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Variable acceleration, time, distance
- Markisen
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What is the net force on the block immediately after it starts to slide?
- AIMheels22
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Electric field outside a uniformly charged cylinder using Gauss's law
- winterwind
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Kinetic molecular model for solids, liquids and gases
- blueforest
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What is the tangential acceleration?
- elcaptain
- · Replies 5 ·
Driven Harmonic Oscillator - Mathematical Manipulation of Equations
- phyzmatix
- · Replies 6 ·
Charging by Contact: Calculating Charge on a Sphere after Multiple Contacts
- 9giddjl
- · Replies 2 ·
How Does Earth's Orbit Affect Light Travel Time?
- ahrog
- · Replies 1 ·
What is the Magnetic Field at the Center of a Current-Carrying Loop Segment?
- jromega3
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What is the formula for the electric field above a plane?
- likephysics
- · Replies 2 ·
How Far Do Ink Droplets Fall in a Printer?
- tnutty
- · Replies 12 ·
What Are Atomic-Sized Wavelengths in the Electromagnetic Spectrum?
- stickplot
- · Replies 6 ·
Blocks on a tabletop attached to a mass suspended by a pulley
- Wobble
- · Replies 4 ·
Finding the point where Earth and Moon's gravity cancel
- inner08
- · Replies 19 ·
How Far Does a Sprinter Run During Acceleration in a 100m Dash?
- nathan scott
- · Replies 1 ·
Calculating Train Speed Increase: 1.5x10^7 kg Train
- Jordash
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Simple pendulum period in an accelerating elevator
- hansel13
- · Replies 2 ·
Simple Circuit Analysis: Finding i_{x} with Mesh Analysis
- ttiger2k7
- · Replies 3 ·
Exploding Projectile Problem: Finding Velocities and Mass Ratios
- Noob.com
- · Replies 2 ·
How to calculate , acceleration, force, momentum and impulse?
- libertylovescie
- · Replies 5 ·
Speed and Distance: Calculating Impact Velocity
- HellRaiser30
- · Replies 1 ·
Metal sphere left by alien civilization
- winterwind
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Parallel resistors and ammeter problem
- Gregg
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Uniform circular motion and acceleration
- spacecadette
- · Replies 8 ·
What is the Angle Between Vectors A and C?
- raptik
- · Replies 2 ·
How Do Photons Exert Force Without Mass?
- vette982
- · Replies 1 ·
Finding Voltage and Resistance in a Series Circuit
- tamz273
- · Replies 4 ·
HARP gun projectile altitude and police cruiser chase problem
- masterboy786
- · Replies 4 ·
Electric Field and Force in a Cell Membrane
- nic4birds
- · Replies 3 ·
Wavelength of carrier frequency radio signal
- stickplot
- · Replies 6 ·
Electron acceleration in a TV tube exceeds speed of light
- elimenohpee
- · Replies 3 ·
How Do You Convert a Scalar Force into Vector Notation in Physics?
- yoleven
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Finding time t when distance traveled in first t seconds is half that of the next second
- nathan scott
- · Replies 9 ·
Questions about Forces and Tension
- vivekfan
- · Replies 1 ·
Time between heartbeats from CRT display with 0.40s/ms timebase
- QueryQueen86
- · Replies 2 ·
Sear's and Zemansky Ex. 17.10: What's Cooking?
- FountainDew
- · Replies 2 ·
How Do You Solve for the Time Given Initial Velocity and Angle?
- papa_smurf493
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Finding total resistance in Thevenin equivalent circuit
- roshan2004
- · Replies 8 ·
How Do You Calculate Tension and Normal Force on an Inclined Plane?
- spacecadette
- · Replies 6 ·
What Is the Minimum Speed Needed for a Boulder to Clear the Dam?
- Bottomsouth
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Net Electric Field: +q1 -q2 Spot at 0 E
- ptdreamer
- · Replies 1 ·
How to Correctly Position an Ammeter to Measure Headlight Current?
- dasblack
- · Replies 1 ·
De Broglie wavelength of 30keV electron
- catkin
- · Replies 6 ·
Calculating Energy Released from Uranium Fission
- estiy
- · Replies 1 ·
Questionable resistance pictures included
- dasblack
- · Replies 1 ·
Solve Vector Conversion Problem in Cylindrical Coords
- bengaltiger14
- · Replies 1 ·
Why does water rise in a U-tube when you blow across it?
- hansel13
- · Replies 1 ·
Single Slit Exp: Find Number of Minima in 0-19deg Range
- dsptl
- · Replies 3 ·
Penny visibility and critical angle in pool with observer
- shar_p
- · Replies 1 ·