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 to Calculate Volume of a Lake Using Different Approximation Methods?
- Endorser
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Just started my physics class. Already
- Damie904
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Gravitational force with different distances and planetary masses
- realfuzzhead
- · Replies 1 ·
Hooke's law and kinetic energy?
- jevillan
- · Replies 1 ·
Liquids; volume and mass flow rates
- bacon
- · Replies 2 ·
Calculating Work and E-field from and equipotential contour graph
- aximwolf
- · Replies 5 ·
Which Statements About Electric Field Lines Are True?
- ss883
- · Replies 4 ·
How Do You Convert km/h to m/s² for Calculating Acceleration?
- freeofwork
- · Replies 3 ·
Maximum Velocity in projectiles
- seanpk92
- · Replies 1 ·
Finding the E-field between two infinite plane charged sheets
- aximwolf
- · Replies 10 ·
What is the required force to push a box upwards on an angled surface?
- Waelroe
- · Replies 3 ·
Solve Refraction Problem 4: Find Angle of Refraction from Air to Glass
- mustang
- · Replies 3 ·
Force - boxes connected by strings
- firework218
- · Replies 3 ·
Calculating wavelength of a standing wave on a guitar string
- Carnivean
- · Replies 9 ·
Electrostatics home work question
- logearav
- · Replies 5 ·
Finding Charges in Battery for 5 Seconds
- Kyoma
- · Replies 9 ·
Parallel voltage sources circuit
- Femme_physics
- · Replies 105 ·
Measure the length of a material with Michelson interferometer
- HotMintea
- · Replies 2 ·
Freeboard of a Soup Can in a Pool
- waterwalker10
- · Replies 10 ·
Proving v3*t1 = v1*t2 for projectile motion at three points
- elphin
- · Replies 1 ·
Question on a waves/sound problem
- Kalix
- · Replies 1 ·
How can we use calculus to find volumes of revolution?
- Endorser
- · Replies 7 ·
What is the relation between a shell and a solid sphere?
- athrun200
- · Replies 1 ·
What is the Relationship Between Internal Energy and Work in Thermodynamics?
- Jagella
- · Replies 6 ·
Motion on an incline plane (detailed)
- thomsora
- · Replies 1 ·
Roller Coaster and Centripetal Acceleration
- hrithikguy
- · Replies 5 ·
I with this Uniform circular motion problem
- Jimmy84
- · Replies 10 ·
Gravitational Force Between; Sun and Earth, Moon and Earth
- NewtonJR.215
- · Replies 21 ·
Finding thrust of a jet engine with 74.2 kg/s air intake
- didinyc
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Throwing an object over the fence
- forrestuv
- · Replies 2 ·
Calculating the Ratio of Planet Masses Using Newton's Law of Gravitation
- puzzled2
- · Replies 1 ·
Finding distance between two points A, B moving in a plane
- Richlair
- · Replies 3 ·
Explain, briefly, what a hysteresis cycle is
- blueyellow
- · Replies 1 ·
Calculating Time to Discharge Capacitor to 3V
- Rupturez
- · Replies 3 ·
3D statics - looks impossible to solve
- Femme_physics
- · Replies 11 ·
Charge distribution across capacitors in series and parallel
- Leeoku
- · Replies 3 ·
Will ammeter reading change when switch closes in circuit with identical resistors?
- Femme_physics
- · Replies 34 ·
Angle at which canon can be fired
- gwizz
- · Replies 13 ·
Find V(f) for two particles resting (and compressing) against a spring.
- Covenant32
- · Replies 2 ·
How Is Average Acceleration Calculated for an Arrow on a Bow?
- Combine
- · Replies 3 ·
How Do You Calculate Cos 125 Degrees in Engineering Mechanics?
- w4taup
- · Replies 2 ·
Question on a doppler effect problem and equation
- Kalix
- · Replies 1 ·
Relative energies inside a rectangular box
- kraigandrews
- · Replies 3 ·
Current: Average vs. Instantaneous.
- sweetreason
- · Replies 1 ·
Impulse imparted by the ground on the ball?
- jevillan
- · Replies 1 ·
Astronomy - Distance with different scale factors
- tosv
- · Replies 3 ·
Launch angle for 28% minimum velocity and runner acceleration problem
- mcr
- · Replies 13 ·
How Do We Calculate the Weight of Block C in a Frictional Force Problem?
- Redcutter
- · Replies 3 ·
Work results in a change in energy?
- Dee08
- · Replies 1 ·
Capacitors in Series and in Parallel
- sweetreason
- · Replies 4 ·
Find the acceleration of the blocks
- jyothsnapb
- · Replies 1 ·
Calculating Resistance of a Light Bulb
- Kryttle
- · Replies 1 ·
Gravity and acceleration simple calculation
- forrestuv
- · Replies 11 ·
How is the junction area of each diode calculated in this circuit?
- shaiqbashir
- · Replies 1 ·
What Is the Initial Velocity Required for a Cannonball to Hit a Moving Target?
- un_cooled
- · Replies 5 ·
Electric potential and distribution of charge
- Lanza52
- · Replies 1 ·
What is the final speed and angle of a ball hit by a baseball bat at 45 degrees?
- None_of_the
- · Replies 2 ·
Electric field from a -5-nC point charge in a +7-nC conducting shell
- yjk91
- · Replies 1 ·
Average velocity of a vehicle traveling north then south
- luckylayla
- · Replies 1 ·
A spring loaded gun question from my test.
- Krislynn
- · Replies 4 ·
Finding Magnitude and Direction of Vector Addition and Subtraction
- luckylayla
- · Replies 1 ·
Solve U1=U*R2/(R1+R2): Current Circuit Theory
- Lindsayyyy
- · Replies 4 ·
Why does Conservation of Energy and Net Forces produce different answers?
- tkegis
- · Replies 4 ·
Maximum kinetic energy of a rocket in free space.
- Pianodan
- · Replies 5 ·
Why Is Heat Energy Considered Unusable?
- Qube
- · Replies 3 ·
Current of Electricity: electrons
- balibone
- · Replies 1 ·
EMF in loop, given magnetic field
- RKOwens4
- · Replies 6 ·
Electric potential, conceptual problem
- _Andreas
- · Replies 10 ·
Can dropped from rising scaffolding at 50 m height?
- donniemsb_12
- · Replies 13 ·
Calculating gravity from height and time of a jump
- Icky Fizz
- · Replies 2 ·
Electric field from charged wire and proton acceleration
- yjk91
- · Replies 1 ·
Electric Field Strength on Cube Faces
- yjk91
- · Replies 2 ·
Acceleration - a constant or increasing?
- dano thompson
- · Replies 7 ·
Average acceleration of a car from 5.51 to 8.09 m/s
- iamjohnny56
- · Replies 4 ·
Determine distance with constant acceleration
- brunettegurl
- · Replies 9 ·
Understanding Chassis Ground in Car Electrical Systems
- fran1942
- · Replies 5 ·
How Does Light Behave When It Travels Between Different Mediums?
- gkangelexa
- · Replies 3 ·
Motion of object in 2 dimensions
- gilledwriter
- · Replies 1 ·
Finding Time T with Given Velocity and Acceleration
- rjs123
- · Replies 11 ·
Compute the terminal speed of a car as it coasts down the incline
- vannessa001
- · Replies 5 ·
Infinite Mass and Finite Tension over a pulley
- enantiomerrem
- · Replies 4 ·
Spring with larger constant: maximum velocity or displacement?
- jehan4141
- · Replies 4 ·
Uniform Acceleration Motion (UAM)
- xelrae
- · Replies 3 ·
Calculating Work Done by Gravity on a Falling Skydiver
- synkk
- · Replies 11 ·
How to Find Vector Components Along Given Directions?
- harshakantha
- · Replies 23 ·
Which, if any, of the following statements about entropy is/are true?
- ss883
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Proof that d/dx is anti-hermitian by integration by parts
- HotMintea
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Hanging accordian balanced by opposing moments
- xiphmont
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Why momentum and energy conservation differ in ballistic pendulum stages
- IKonquer
- · Replies 1 ·
Relating portions of Poiseille's Law to concepts of pressure/radius
- oddjobmj
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Two people of differing masses on a sheet of ice
- aCab
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Bullet and block collision with spring compression
- lillybeans
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Finding the E-field of a mass hanging from a string
- aximwolf
- · Replies 2 ·
What are the conditions for different types of damping in oscillations?
- kraigandrews
- · Replies 1 ·
How Does a Cuckoo Clock Calculate Its Quality Factor and Battery Life?
- kraigandrews
- · Replies 1 ·
Resultant Force: Something I am messing up on in calculation - ?
- nukeman
- · Replies 3 ·
Which, if any, is/are valid forms of the Second Law of Thermodynamics?
- ss883
- · Replies 1 ·
No, that is not correct. The correct answer is F_t(y) = [m(gL - gy)]/L.
- ahhgidaa
- · Replies 3 ·
Initial separation of two charged particles flying apart
- Vettel
- · Replies 2 ·
Finding coordinates for points X and Y given vector XY
- jessbrewer
- · Replies 1 ·