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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F = ma 2012 #20 (Apparent weight when dunking wood in water)
- SignaturePF
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Fraction of electrons removed from a charged copper ball
- mysticbms
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Determining The Mass Of The Earth
- Bashyboy
- · Replies 9 ·
What Are the Correct Responses to These Basic Physics Questions?
- salman19753
- · Replies 8 ·
Find the average speed from t = 0 to t = 1 s
- valerieangel
- · Replies 1 ·
F = MA Exam 2011 # 13 (Rotation/Rolling)
- SignaturePF
- · Replies 8 ·
Train braking: finding new speed and distance with constant deceleration
- keevo
- · Replies 5 ·
Finding speed and distance of a train
- keevo
- · Replies 1 ·
Solving a Spring/Force Problem: Mass, Spring Constant, and Acceleration
- morrisj753
- · Replies 6 ·
Electric Force Textbook error?
- quicksilver123
- · Replies 8 ·
Calculate the amount of work required to assemble a system of charges.
- ditde
- · Replies 1 ·
Calculating Push Time for a Moving Crate
- noob34
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Mass, speed, and force to find new speed and distance traveled during period.
- keevo
- · Replies 1 ·
Gauss' law flux through cylinder ends with discontinuous field
- miniMitts27
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Determining the electron speed in parallel plates
- ProAgnusDei
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Find the resultant of these two force vectors using the following methods.
- Brillntbrntt
- · Replies 3 ·
Solving an Acceleration Problem Involving a Super Ball
- cmkc109
- · Replies 8 ·
Determine the final temperature of the mixture
- Stomper123
- · Replies 2 ·
Will the Block Tip Over or Slip on an Incline?
- morrisj753
- · Replies 2 ·
Amplitude Change in Oscillations with Varying Spring Constants
- morrisj753
- · Replies 4 ·
Solving for time with an Overdamped Oscillator
- NewtonsHead
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How large torque is needed for acceleration
- bolskipolski
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Car crashing into truck: momentum and energy loss
- TheRedDevil18
- · Replies 12 ·
How do you find the centre of gravity?
- gazing600000
- · Replies 9 ·
Calculating Altitude of a Geosynchronous Satellite Orbiting Jupiter
- Bashyboy
- · Replies 5 ·
Find the Velocity when accelration is not constant
- Northbysouth
- · Replies 9 ·
Invariance of the y coordinate for a boost along the x axis
- homerT
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Calculate resultants of two forces
- zeralda21
- · Replies 4 ·
What is the final velocity of a stone thrown downwards from a roof?
- Reth0407
- · Replies 4 ·
Curvilinear Motion: Rectangular Components
- aaronfue
- · Replies 1 ·
Determining current direction at a node using Kirchhoff's junction rule
- doctordiddy
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Force on an airplane window, given altitude and area of the window.
- monnapomona
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Finding Time and Distance in a Lion-Monkey Chase
- Juan42
- · Replies 2 ·
Wheel attached to a spring with teeth
- PhizKid
- · Replies 23 ·
F = MA 2011 # 14 (Creating a uniform sound)
- SignaturePF
- · Replies 9 ·
Convert 1460 tons/hour to lb/sec: Solution
- Howlz
- · Replies 2 ·
F = MA 2011 Exam # 8 (Fraction of an object above surface of water)
- SignaturePF
- · Replies 7 ·
F = MA 2012 Exam # 19, 20 (Using Graphs)
- SignaturePF
- · Replies 3 ·
What is the Wavelength of Scattered Radiation in a Compton Effect Experiment?
- skg94
- · Replies 7 ·
Should Vout be negative or positive?
- Clandry
- · Replies 4 ·
Air pressure at different room temperatures
- awesomeness
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Finding net force using velocity graph?
- jennaskim
- · Replies 7 ·
Adiabatic compression of ideal diatomic gas
- Fizz_Geek
- · Replies 9 ·
Height of the water in a rotating water pot
- Ezio3.1415
- · Replies 13 ·
Uniformly charged disk and the E field some distance Z from the center
- anban
- · Replies 4 ·
Find Acceleration using Velocity and a given equation
- destroctokon
- · Replies 3 ·
What is the correct way to interpret resistor bands in a circuit?
- Clandry
- · Replies 1 ·
How Does Coulomb's Law Calculate Forces Between Two Point Charges?
- sushi362
- · Replies 3 ·
How do you find the phase difference when given two sine equations and a X and t
- randoreds
- · Replies 6 ·
Time, velocity, deceleration and the constant K
- Northbysouth
- · Replies 3 ·
Diffraction limite of the human eye
- oldspice1212
- · Replies 1 ·
Two point charges
- phunphysics2
- · Replies 7 ·
Natural Log on Radioactive Decay Formula
- jucristina
- · Replies 5 ·
Net flux through a closed sphere
- PeteyCoco
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Direction of force on the charge?
- awilliam_3
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Ranking forces between charged particles
- awilliam_3
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What is the final temperature of the mixture?
- FlyDoc
- · Replies 5 ·
What Is the Phase Difference Between Two Speakers Emitting Sound Waves?
- bored2death97
- · Replies 2 ·
Kinematics and acceleration problem
- aaronfue
- · Replies 9 ·
Find the electric field of a square at a given point?
- awilliam_3
- · Replies 4 ·
What Is the Relationship Between Voltage and Length in an Electrical Circuit?
- GreenPrint
- · Replies 14 ·
How Do You Calculate the Moment in a Force-Couple System at a Pivot Point?
- zeralda21
- · Replies 3 ·
Question on the derivation of Intensity
- Blastrix91
- · Replies 2 ·
Light through 3 linear polarizers
- Levi Tate
- · Replies 25 ·
Hooke's Law: How to find Amplitude
- Absent.Crisis
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Fourier Series Representation of Signals (Proof)
- Icetray
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X-ray question - frequencies and energies
- Deathnote777
- · Replies 2 ·
Electric potential and Field Lines
- Sigmeth
- · Replies 4 ·
Diffraction from a loud speaker
- pmd28
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1-d kinematics food fight in space
- tri5
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Electricity and magnetism ( word problems )
- chipM
- · Replies 12 ·
Three Charges in an Electric Field
- blue_lilly
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Proving length contraction exists
- daselocution
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Finding mass of block with applied force and friction
- Element1674
- · Replies 22 ·
Finding cliff height from rock drop and sound travel time
- Toranc3
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Determine relative density qualitatively?
- yoyopizza
- · Replies 7 ·
Simple Forces question I cannot seem to get
- Element1674
- · Replies 1 ·
Raising temperature with no external work applied
- BOYLANATOR
- · Replies 6 ·
Static Friction and minimum force
- anne921
- · Replies 12 ·
Instantaneous Particle Velocity from Wave
- rocapp
- · Replies 2 ·
Determine Orbital Period Of Satellite
- Bashyboy
- · Replies 10 ·
Uniform Circular Motion Derivation of Radial Acceleration
- hermes1908
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Total energy when potential graph is given
- nhmllr
- · Replies 6 ·
Newtonian Mechanics - Particle in Motion with Air Resistance
- derravaragh
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What is the velocity of a ball thrown from a building before it hits the ground?
- racecar12
- · Replies 12 ·
Why does replacing t with t-x/w give the wave equation for a string?
- Von Neumann
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Total gravitational potential energy of four objects
- nhmllr
- · Replies 5 ·
Transforming double integrals into Polar coordinates
- lmstaples
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Are spring forces at both ends always equal in magnitude?
- Leong
- · Replies 7 ·
Electricity and Electric Field Questions
- Mrclean214
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Determining moment of a force about point O
- AloneWeSink
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Car Passing Truck: Solving for Time Required
- Toranc3
- · Replies 4 ·
Relating accelerations in a 3-pulley system with constant string length
- Pi-Bond
- · Replies 18 ·
How to Calculate Normal Force on an Inclined Surface with Tension Force?
- FredericChopin
- · Replies 6 ·
How do you finish rearranging the Doppler shift formula
- McWilliams
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How to find the acceleration with polar coordinates?
- TonyTheTech
- · Replies 1 ·
Average acceleration from velocity function v(t)=α+βt²
- hrodger
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Velocity, Speed, and Time question
- OUstudent
- · Replies 9 ·
Boat crossing river at 35 degrees northwest
- njuice8
- · Replies 2 ·
I want to do an egg drop by submerging the egg in fluid. Which fluid is best?
- pa5tabear
- · Replies 5 ·