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 Is Magnetic Field Strength Calculated in a Solenoid with a Current Balance?
- skg94
- · Replies 2 ·
Deriving Electric Field at Origin for Infinite Line Charge
- MrMaterial
- · Replies 4 ·
Calculating Maximum Compression Height of Spring: A Scientific Approach
- amlev05
- · Replies 1 ·
An applied force varies with position
- SonRuy
- · Replies 6 ·
What is the moment of inertia of an inclined disk?
- Saitama
- · Replies 10 ·
Concept of Elastic/Inelastic Collision ?
- Lo.Lee.Ta.
- · Replies 7 ·
Is the Velocity Equation v^2 = v0^2 + 2ax Dimensionally Correct?
- skippinrocks
- · Replies 1 ·
A cheerleader is practicing her baton twirling. The baton has two .6kg masses
- Lo.Lee.Ta.
- · Replies 2 ·
Calculating cost to heat house using R-values
- nerdy_hottie
- · Replies 1 ·
Vertical Deflection Off Free End Of Bar
- ggl3
- · Replies 1 ·
Compound circuit voltage drop along parallel component
- bnosam
- · Replies 6 ·
Calculating Speed of Blocks in Pulley System with Spring Compression
- eonden
- · Replies 9 ·
Universal Gratvitation Problems
- s-win
- · Replies 9 ·
How far does a baseball player slide with friction?
- Confused too
- · Replies 9 ·
Solving Cable Tension Problem with Given Angles and Mass
- ChessFanatic
- · Replies 6 ·
Thin Film Interference Question
- ChibiMolinero
- · Replies 1 ·
Diffraction related to Resolving Power
- wizzleman
- · Replies 1 ·
Statics: Balancing beam of unknown length
- togg
- · Replies 2 ·
Solving for Velocity and Describing Motion of a Spring-Mass System
- riseofphoenix
- · Replies 7 ·
Kinetic energy: what percentage has been lost?
- totentanz777
- · Replies 1 ·
Energy stored in a spring and velocity of a mass
- riseofphoenix
- · Replies 4 ·
LLoyd's Mirror Distance Dependence
- alex_b93
- · Replies 1 ·
Finding charges in a pendulum in equilibrium
- Zayin
- · Replies 7 ·
Calculating Toboggan Acceleration and Tension with Newton's Laws
- whatwhat11
- · Replies 8 ·
Gravitational Force between three forces
- DRC12
- · Replies 2 ·
Derive % change Kinetic energy eqn for inelastic collision
- ArtVandelay
- · Replies 2 ·
Using the conservation of energy find speed
- Lolagoeslala
- · Replies 13 ·
Wheel and block on incline: rotational inertia calculation step
- nchin
- · Replies 5 ·
Does force normal change when you push an object at an angle?
- Ace.
- · Replies 3 ·
Rotational Motion of Masses Problem
- wizzpowa
- · Replies 2 ·
Uniform Circular Motion of a race car
- wizzpowa
- · Replies 2 ·
Calculating Angular Acceleration of Wheel of Radius R Given Vector of Tot. Acc.
- peripatein
- · Replies 1 ·
How to calculate rollover based on angle of turn, velocity, and wheel distance
- yw917
- · Replies 3 ·
Force to push mass down inclined plane
- ChessFanatic
- · Replies 3 ·
Pulling a plank across cylinders - Rotational Dynamics
- jkiddmagic
- · Replies 6 ·
Potential Energy of an electron in a parallel plate capacitor
- Seydlitz
- · Replies 1 ·
Why does reduction of order work for linear ODEs?
- theBEAST
- · Replies 1 ·
Calculating angle of elevation in a ticker tape lab
- daee
- · Replies 1 ·
How do I plot a particle trajectory given in parametric form?
- peripatein
- · Replies 4 ·
EMF generated by a magnetic field
- Parad0x88
- · Replies 5 ·
Find the resistance and inductance ensuing a short-circuit
- Parad0x88
- · Replies 10 ·
Solving a Question: I Thought it Was D!
- Peter G.
- · Replies 1 ·
Suppose B is moving with speed v away from A
- unscientific
- · Replies 1 ·
Ball on a spring launched vertically: checking speed and height
- joe426
- · Replies 6 ·
What is the current in the wire?
- Bigworldjust
- · Replies 4 ·
Force Needed to Hold Rocket Down
- joel amos
- · Replies 1 ·
Plank pulled across two cylindrical rollers without slipping
- benoconnell22
- · Replies 55 ·
Energy, Force, and Inertia Problem. Ball down ramp to loop to loop
- rschaefer2
- · Replies 24 ·
Find the Speed of a Falling Meter Stick
- nchin
- · Replies 9 ·
Photon emitted by a hydrogen atom in Lyman series and Balmer series at once ?
- nishantve1
- · Replies 1 ·
Net torque question? Block 1 and block 2 hanging on pulley?
- nchin
- · Replies 2 ·
Work done on a bee struck by a golf ball on a slope
- joe426
- · Replies 8 ·
What linear speed must a 0.0500-kg hula hoop have if its total kinetic energy
- Lo.Lee.Ta.
- · Replies 3 ·
Calculating Velocity and Time for a Falling Coin
- fifaking7
- · Replies 5 ·
Object exploding into two pieces: find speeds, force, and momentum
- venceslau
- · Replies 5 ·
Find coefficient of kinetic friction between a bullet and a pendulum
- jreelawg
- · Replies 7 ·
How Do You Solve the Coefficients for a Forced Oscillation Equation?
- MahaX
- · Replies 1 ·
Plank being pulled across two cylinders
- bvschaefer
- · Replies 3 ·
Angular position θ=0.40e^(2t): derivatives of angular motion
- nchin
- · Replies 1 ·
What does phase of the motion in terms of cosine displacement mean?
- Maskawisewin
- · Replies 2 ·
How Do You Solve Potential Energy When No Height is Given?
- BreezyHani
- · Replies 1 ·
Is Kinetic Energy Always Conserved in Collisions?
- kreb11
- · Replies 1 ·
Is 24.01 the Correct Answer for the Static Friction Problem?
- Bacheeseafg
- · Replies 1 ·
Finding the surface area of a curved object using calculus
- lch7
- · Replies 7 ·
Kinetic, Potential, and Mechanical Energy
- BreezyHani
- · Replies 4 ·
Bullet and target- conservation of momentum and energy
- Lolagoeslala
- · Replies 10 ·
Motorcycle horizontal acceleration-front wheel rise
- physics2012
- · Replies 1 ·
Derivatives in an Atwood Machine
- henryd
- · Replies 3 ·
Calculate Equivalent Inductance of Coils Connected in Series
- regisz90
- · Replies 5 ·
How much force does it take for a egg to break?
- WMalik81
- · Replies 4 ·
Ladder leaning on wall with painter climbing it
- EmptyMerc
- · Replies 4 ·
Hydrostatic Force in swimming pool
- johnhuntsman
- · Replies 6 ·
Work done of a car braking and the power needed to stop it
- FaraDazed
- · Replies 4 ·
Momentum Between Two Colliding Balls
- cbasst
- · Replies 12 ·
Vector subtraction with momentum
- Lolagoeslala
- · Replies 39 ·
Compound Circuits and resistance in a parallel circuit
- bnosam
- · Replies 4 ·
Mechanics problem involving work, spring and a-jack-in-the-box
- Dumbledore211
- · Replies 28 ·
Magnitude of the non-coulomb electric field around a solenoid.
- Pepjag
- · Replies 3 ·
Why is the Density of Water almost the same as
- johnhuntsman
- · Replies 2 ·
Force required to pull trunk across floor
- Ace.
- · Replies 1 ·
LC Circtuit finding Q across an element for given time
- hanyu
- · Replies 2 ·
Calculating 2 Sine Wave Frequencies from Beats Data
- dwanty
- · Replies 1 ·
Thermometer stem correction with pressure
- AlexLM
- · Replies 1 ·
Proton bounces back at 3.90×10^7 m/s from unknown nucleus
- oldspice1212
- · Replies 1 ·
Is F=ma the only way to define force?
- aaaa202
- · Replies 2 ·
Person sitting on scale on roller coaster
- cdornz
- · Replies 3 ·
Simply Supported Beams Loads and S/BMD's
- nobodyuknow
- · Replies 9 ·
Eddy-current braking system, find the new velocity
- Parad0x88
- · Replies 5 ·
Graphing U(x) and F(x) for potential energy U(x)=Uox₀x/(x²+x₀²)
- Spyridoula
- · Replies 3 ·
Rolling ramp displacement due to weigh of block
- V0ODO0CH1LD
- · Replies 3 ·
Tricky torque problem I have for you
- NasuSama
- · Replies 23 ·
Kinetic Energy of a wheel with spokes
- physicsftw1
- · Replies 1 ·
Why Does Using T=ma Instead of F=ma Affect the Solution in Dynamics Problems?
- Abdilatif
- · Replies 2 ·
Finding the energy lost in a collision as the bullet collides to the block
- Lolagoeslala
- · Replies 12 ·
Energy of H Atom in 1st Excited State - 23.8 eV
- nishantve1
- · Replies 6 ·
Two questions on ideal gases and heat
- feijjjao
- · Replies 4 ·
Calculating Charge Entering an Element: Q=6.667 C
- Wolverine31
- · Replies 3 ·
Minimum energy of electron bound in nucleus
- phosgene
- · Replies 1 ·
Electromagnetism: charge density
- Jalo
- · Replies 1 ·
Projectile energy when an object hits the ground
- Arty7
- · Replies 7 ·