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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Can heat flow into a body without increasing the mean kinetic energy?
- AN630078
- · Replies 1 ·
Problem with independent events in possibilities
- maria papadakh
- · Replies 16 ·
Does damping affect wave frequency, wavelength, or speed?
- jerad908
- · Replies 1 ·
Waves -- How does increasing tension affect frequency and period?
- jerad908
- · Replies 2 ·
Calculating Numerical Uncertainties in an Equation
- Athenian
- · Replies 20 ·
Motion of a particle in a magnetic field
- happyparticle
- · Replies 41 ·
Pulling a sled across snow with a rope at an angle
- Purpleshinyrock
- · Replies 8 ·
Background radiation sources question
- AN630078
- · Replies 4 ·
Forces on particle in complex motion relative to ground observer
- vcsharp2003
- · Replies 20 ·
Which Radiation Type Has the Most Energy: Alpha, Beta, or Gamma?
- AN630078
- · Replies 2 ·
Speed of sled descending frictionless ramp from 12.2 m to 4.58 m
- Purpleshinyrock
- · Replies 4 ·
Buoyant Force and Archimedes' Principle
- EnricoHendro
- · Replies 13 ·
Finding the number of ballons needed to make a child fly away
- arhzz
- · Replies 10 ·
Can 96-Cm-247 Undergo Alpha Decay?
- dcarmichael
- · Replies 2 ·
Electrostatics: Coloumb's law and the Electric Field
- Mayhem
- · Replies 2 ·
How can you solve soap bubble oscillations using an energy approach?
- etotheipi
- · Replies 18 ·
Special relativity (length contraction, velocity composition) problem
- greg_rack
- · Replies 2 ·
Time that a comet spends inside Earth's orbit
- matteo446
- · Replies 2 ·
General work of friction question
- jerad908
- · Replies 2 ·
Understanding Magnetic Field Direction from Two Wires at a Distance
- Jstuff
- · Replies 5 ·
To calculate the centre of gravity of a spherical cap
- gnits
- · Replies 5 ·
Circuits - AC circuits / phasor
- wcjy
- · Replies 8 ·
Can Tidal Force Unlock Unlimited Energy Potential?
- appmathstudent
- · Replies 3 ·
Understanding Forces and Acceleration on a Sliding Object on an Incline
- Murilo T
- · Replies 3 ·
Angle on ramp with cart and weights on rope at end
- jskrzypi
- · Replies 3 ·
Ball launcher question - ENERGY
- ahsila432
- · Replies 21 ·
Circuits - Transfer function of this LRC circuit
- wcjy
- · Replies 2 ·
Relationship between Launch height and range of a projectile
- Stanley_physics
- · Replies 15 ·
What is the maximum kinetic energy for harmonic motion with a reduced amplitude?
- Frouel
- · Replies 2 ·
Dynamics question -- 3 masses on a pulley-rope system on an inclined plane
- rabsta00
- · Replies 4 ·
Free fall question -- Dropping a pebble into a well to figure out the depth
- rabsta00
- · Replies 5 ·
Work Done on A Proton in an Electric Field
- physicslady123
- · Replies 1 ·
Transformer; make primary voltage x10 of the secondary voltage
- AN630078
- · Replies 4 ·
Point charges in a regular hexagon
- rbh
- · Replies 2 ·
Ground state energy of 5 identical spin 1/2 particle
- Sushmita
- · Replies 5 ·
Speed of a hanging rope sliding on a nail (using energy conservation)
- TheGreatDeadOne
- · Replies 6 ·
Conservation of mass: control volume approach question
- George26
- · Replies 2 ·
Calculating max acceleration of a Tesla car
- barryj
- · Replies 11 ·
Determining g by free fall with light gates -- assumption analysis
- maxim07
- · Replies 14 ·
Where kinetic and potential energy are equal in spring oscillation
- Dunkodx
- · Replies 7 ·
Calculating the waste heat of Carnot engine
- JoeyBob
- · Replies 4 ·
Electromagnetic effects and Magnetic Fields Questions
- lpettigrew
- · Replies 2 ·
Hi determine the height of the mountain (using atmospheric pressure)
- Krokodrile
- · Replies 25 ·
Direction of velocity in slider crank mechanism
- subatomicprincess
- · Replies 5 ·
Shape of graph of torque vs angular displacement of galvanometer
- songoku
- · Replies 6 ·
Proper Time and Time Dilatation
- LCSphysicist
- · Replies 1 ·
Root-mean squared values and a.c. emf
- AN630078
- · Replies 5 ·
Efficiency of heat engine question
- JoeyBob
- · Replies 14 ·
Inclined plane problem without mass or coefficient of friction given
- ineedhelpthanks
- · Replies 8 ·
Velocity equation and distance problems
- Krokodrile
- · Replies 13 ·
Proof of Electromagnetic Identity: Puzzling Last Expression
- larginal
- · Replies 3 ·
Hello - basic incline mass and energy question, thanks :)
- Bix
- · Replies 12 ·
Finding I3: Resistance Ratio Calculation
- hquang001
- · Replies 4 ·
How Does 5% Scattered Light Affect Equivalent Width?
- AlphaCrucis
- · Replies 1 ·
How Do You Calculate Light Intensity in an Insulating Magnetic Material?
- sunmaggot
- · Replies 3 ·
Magnetic force on current-carrying rod with springs and doubled resistance
- User1265
- · Replies 8 ·
Can Work-Energy Formula Be Used to Solve Ball-Spring Collision?
- walking
- · Replies 1 ·
Work, Energy, Power Problems: No Mass? No Speed?
- harujina
- · Replies 4 ·
What is the expression for Compton scattering angle in terms of t?
- jjson775
- · Replies 9 ·
Determine horizontal separation of fabric from diffraction pattern
- songoku
- · Replies 4 ·
Does the exhaust of a truck match the velocity of the truck?
- vcsharp2003
- · Replies 11 ·
Trying to find HOW to get the velocity.
- JohnTheGreat101
- · Replies 4 ·
Find the frictional force acting on a solid cylinder
- Kaushik
- · Replies 1 ·
Force to withdraw dielectric from capacitor
- Jack99123
- · Replies 3 ·
Power to keep helicopter hovering
- walking
- · Replies 7 ·
Moment of inertia of a regular triangle
- Who_w
- · Replies 5 ·
Momentum of Electron in a Box (IB Physics QM)
- lekh2003
- · Replies 21 ·
Find the tension in the wire from this mass hanging at an angle
- besi
- · Replies 23 ·
Masses Moving Radially on a Rotating Disk
- hquang001
- · Replies 8 ·
What is the force equation for power from a trolley motor?
- walking
- · Replies 5 ·
Finding temperature change, thermodynamics first law
- JoeyBob
- · Replies 5 ·
Einstein velocity addition solving for v
- gtguhoij
- · Replies 4 ·
Finding change in height of fluid in U tube from change in T
- JoeyBob
- · Replies 10 ·
Find change in entropy for a system with a series of reservoirs
- mcas
- · Replies 2 ·
Pulse Duration (PD), Pulse Repetition Period (PRP) and Duty Factor (DF)
- markieboy
- · Replies 1 ·
Elastic head-on collision problem
- Traced
- · Replies 8 ·
Determining electric field using gauss's law--different distributions
- Helenah
- · Replies 3 ·
Trouble with units for Spring Constant
- guyvsdcsniper
- · Replies 4 ·
Is Nonconservative work negative?
- guyvsdcsniper
- · Replies 3 ·
Why Does the Pattern Blur When I Approach in Young's Double-Slit Experiment?
- jackiepollock
- · Replies 4 ·
Gauss Law general physics 2 question
- DavidGarcia
- · Replies 1 ·
Constant acceleration in a rocket
- Frostman
- · Replies 4 ·
Car passing a truck — calculating the relative motions
- rssvn
- · Replies 39 ·
Can two variables in two different equations cancel each other?
- Y0SHI0N
- · Replies 5 ·
Velocity addition formula in X and Y axes (Relativity)
- phantomvommand
- · Replies 9 ·
Specific latent heat of fusion of ice question
- maxim07
- · Replies 9 ·
Why does the speed change at the bottom of the loop-the-loop?
- Vigorous
- · Replies 5 ·
Mechanical energy- how to solve for v
- Woopa
- · Replies 6 ·
Finding the force on a camera window underwater
- yourheartandsoul
- · Replies 10 ·
Thrust of Jet Plane: Why Is -313m/s^2 Wrong?
- walking
- · Replies 15 ·
How does an elevator maintain a constant speed despite changes in load?
- walking
- · Replies 8 ·
Why 0.3m From Lens Is Optimal Focus?
- phantomvommand
- · Replies 3 ·
Calculating Signal to Noise due to thermal noise
- JoJoQuinoa
- · Replies 2 ·
Finding area from work, pressure and volume
- JoeyBob
- · Replies 9 ·
Inconsistencies in Work and Energy Calculations for an Infinitely Thick Sheet?
- A13235378
- · Replies 6 ·
Finding blood pressure from density and height difference
- yourheartandsoul
- · Replies 6 ·
Find the phase difference in terms of d, lambda, theta
- joelkato1605
- · Replies 1 ·
If I pull a pulley, what is the tension in the string around it?
- phantomvommand
- · Replies 4 ·
Getting the equations of motion for this SHM problem
- phantomvommand
- · Replies 8 ·
Find rate of temperature change using heat capacity, density and area
- JoeyBob
- · Replies 4 ·