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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Rewriting SHM equation from a function of sin(wt) and cos(wt) to just cos(wt-∅)
- jammydav93
- · Replies 2 ·
Digital Technology - CDs and Storage Space
- Peter G.
- · Replies 2 ·
[Thermodynamics] Calculate change in entropy of closed reversible system
- Ortix
- · Replies 6 ·
Kinematics of Linear Motion: Solving Problems with Constant Acceleration
- freshbox
- · Replies 13 ·
Sphere receiving tangential impulse: linear velocity, angular velocity, kinetic energy
- ZxcvbnM2000
- · Replies 6 ·
How many helium balloons does it take to lift a person?
- pinkerpikachu
- · Replies 2 ·
Block released from compressed spring: speed and distance with friction
- Bradyns
- · Replies 4 ·
Orientation of Magnetic Field and Coil
- jimbobian
- · Replies 1 ·
Can I find time without knowing initial velocity?
- Kearnsy101
- · Replies 4 ·
Maximum and Minimum EMF in a generator
- Nachoswin
- · Replies 1 ·
Friction and Newton's second law
- Joshuarr
- · Replies 9 ·
Finding final temperature of a mixture
- MixedUpCody
- · Replies 6 ·
What is the rate of temperature change for a pizza floating in space?
- charmedbeauty
- · Replies 11 ·
How Do You Count the Number of Waves in a Ripple Tank Experiment?
- roam
- · Replies 3 ·
Pressure, Volume and Temp Change WORK done?
- sweetpete28
- · Replies 1 ·
What Determines the Radial Acceleration of a Swinging Ball?
- twoods
- · Replies 5 ·
Finding the angle for an electrostatic force
- Kaani
- · Replies 3 ·
Calculating Jeans mass for a hydrogen cloud with unit conversions
- daleklama
- · Replies 1 ·
What is the Initial Phase Angle and First Maximum Current in an AC Circuit?
- steveandy2002
- · Replies 3 ·
Cannot make any sense out of this one
- AudioFlux
- · Replies 2 ·
Two infinite sheets of different charge density
- purplegreen
- · Replies 2 ·
Mechanics -projectile motion calculating angle
- umm...
- · Replies 15 ·
Static and dynamic(kinetic) coefficients of friction
- thestudent101
- · Replies 12 ·
Period of compound pendulum made from rod and metre stick
- charmedbeauty
- · Replies 7 ·
Rocket in Deep Space: Momentum Maximization
- Sekonda
- · Replies 4 ·
Simple Particle Motion (Dynamics)
- dunn
- · Replies 4 ·
Isothermal, isovolumetric, and isobaric processes in ideal gases
- charmedbeauty
- · Replies 10 ·
Finding the contact force in a hinge?
- SopwithCamel
- · Replies 1 ·
Finding the Minimum Distance Between Two Points Using Graphing Calculator
- xzibition8612
- · Replies 14 ·
Calculate Spring Force on Car Impact Speed
- charmedbeauty
- · Replies 2 ·
Why cant charge move in an insulator?
- aaaa202
- · Replies 3 ·
Cutting edge introductory info re: field emission microscopy and imaging methods
- physicsartist
- · Replies 3 ·
Marble around the loop-the-loop
- Lydia22
- · Replies 9 ·
Discover the Angle of Swing: Solving for the Motion of a Bullet and Block System
- Lydia22
- · Replies 9 ·
What Is the Meteor's Altitude Due to Length Contraction?
- debroglieman
- · Replies 2 ·
How Does the Velocity of Two Colliding Balls Change After Impact?
- Samyuerux
- · Replies 3 ·
Heat Engine Carnot Efficiency question
- DrDonaldDuck
- · Replies 5 ·
Bohr model question - transition between first excited state and ground state
- daleklama
- · Replies 4 ·
Finding frequency from peak wavelength in Wien's law
- re496210
- · Replies 4 ·
Physics electrostatics question
- priyanshm
- · Replies 1 ·
Why Does the Tube's Velocity Become Zero After Collisions?
- ZxcvbnM2000
- · Replies 5 ·
Projectile motion over angled edge
- Samyuerux
- · Replies 13 ·
Change in I.E. for a reversible process
- gravrider
- · Replies 4 ·
Uniformly Accelerated Motion: A Puzzling Problem?
- ilp89
- · Replies 1 ·
Why is a galvanometer with low sensitivity preferred for certain measurements?
- Drao92
- · Replies 2 ·
Deriving formula for Relativistic Kinetic Energy
- karkas
- · Replies 8 ·
Translational Velocity Problem (Sphere)
- DrDonaldDuck
- · Replies 11 ·
Thermal Physics: Dry Steam Heat 200g Water from 25°C to 95°C
- DJ-Smiles
- · Replies 3 ·
Finding the mass of gold in a crown of gold-copper alloy using buoyancy
- techgeek17
- · Replies 9 ·
2D Collision : Glancing Collision
- n3w ton
- · Replies 3 ·
Conservation of Momentum and Relative Velocity
- whoareyou
- · Replies 7 ·
How to derive (m2v4)/m1 for car collision momentum
- Probie1
- · Replies 7 ·
Ring of radius R and uniform charge
- arl146
- · Replies 1 ·
Solve Perfect Gas Homework: A to B Volume Ratio
- liambwfc
- · Replies 1 ·
Time taken to charge capacitor to 2/3 V in
- mogley76
- · Replies 2 ·
How I can find time by this formula S=ut+1/2at^2
- manal950
- · Replies 4 ·
Get Physics Lab Help: Find Theoretical Distance X
- ji707
- · Replies 10 ·
Electron in infinite well equation
- ZedCar
- · Replies 1 ·
Change in GPE of the moon as the radius increases. Getting extreme answers
- psychicgerm
- · Replies 6 ·
What is the work done by rocket motors in deep space?
- Taylor_1989
- · Replies 2 ·
Mass of an electron lab discussion?
- Wh1994
- · Replies 2 ·
Connecting oppositely charged capacitors in series
- nishantve1
- · Replies 5 ·
Using e = hc/λ to find wavelength of light emitted
- miniradman
- · Replies 2 ·
Buoyancy - Maximum mass a styrofoam sphere can hold in water.
- Masschaos
- · Replies 3 ·
Conserved Energy in a moving frame of reference
- Tinhorn
- · Replies 38 ·
Heisenberg Uncertainty Principle - find minimum uncertainty in position
- daleklama
- · Replies 4 ·
Compton scattering problem - how much did wavelength change by?
- daleklama
- · Replies 2 ·
Determining the Radius of the Moon (Ratio and shadow measurements)
- BenMur
- · Replies 2 ·
Electric field by infinite line of charge
- Sam99
- · Replies 3 ·
Commutators for functions of operators (momentum/position)
- Ratpigeon
- · Replies 1 ·
Finding central charge for equilibrium of four corner charges in a square
- arl146
- · Replies 18 ·
Uniform Circular Motion (free-body diagram)
- Joshuarr
- · Replies 4 ·
Number of collisions/sec for a gas atom
- ZedCar
- · Replies 1 ·
Which General Physics Topics Are Considered Easier to Understand?
- AzzidReign
- · Replies 2 ·
Finding vector perpendicular to other vectors
- amit25
- · Replies 5 ·
Pressure at the bottom of cylinder immersed in two liquids
- songoku
- · Replies 2 ·
Displacement of an object in circular motion
- jami8337
- · Replies 1 ·
Solving SUVAT Questions: Find Time for a Ball's Descent
- jendrix
- · Replies 2 ·
Thermodynamics: Pouring Cream into Coffee
- AvgStudent
- · Replies 1 ·
Centripetal Force required to hold electron
- nobrainer612
- · Replies 1 ·
At What Distance Above the Ground Will the Mass First Come to Rest?
- ZxcvbnM2000
- · Replies 2 ·
Simple block kinematics problem
- jean28
- · Replies 1 ·
Kinematics problem with constant acceleration
- livestrong136
- · Replies 1 ·
Differentiate De Broglies Theorem
- ZedCar
- · Replies 1 ·
SHM spring system, Tension direction confusion.
- binbagsss
- · Replies 2 ·
Helium tank filling parts to a specific pressure?
- rothrj
- · Replies 2 ·
Why does a pendulum overshoot equilibrium
- jsmith613
- · Replies 7 ·
Vector Perpendicular to Two Other Vectors
- mhz
- · Replies 2 ·
The Doppler Shift Method for Calculating Recession Speed
- jsmith613
- · Replies 1 ·
Uncertainty in spring constant from mass and extension measurements
- charmedbeauty
- · Replies 5 ·
Fundamental Particles - Meson Decay Question
- Magda|A380
- · Replies 2 ·
Biomechanics Quadratic Equation problem
- dsm63
- · Replies 3 ·
What is the Velocity of Ozone Formed from Inelastic Collisions?
- l00kitsjake
- · Replies 1 ·
Calculating the Number of loops in the solenoid
- spideykid7
- · Replies 1 ·
Calculating Minimum Speed at Top of Vertical Loop
- SamLing2000
- · Replies 2 ·
Kinematics of Rotational Motion (Gears)
- freshbox
- · Replies 4 ·
Finding wavelength from photon energy
- nukeman
- · Replies 5 ·
How Much Force Does a Man Feel in a Train-Truck Collision?
- centrix
- · Replies 3 ·
Work done on a gas as volume decreases
- kabailey
- · Replies 1 ·
Physical Science Question on Electrical Power and Energy
- CEF721
- · Replies 1 ·