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 Does Magnet Height Affect a Pendulum's Period?
- StasKO
- · Replies 16 ·
A shaft is uniformly accelerated from 10rev/s to 18 rev/s in 4 sec .
- manal950
- · Replies 28 ·
Simple tension problem, I can't seem to understand it
- dakotapederse
- · Replies 2 ·
Light- critical angle/refraction/reflection
- physicsluv
- · Replies 2 ·
Calculate the equivalent capacitance of the circuit
- arl146
- · Replies 7 ·
Coupled Oscillators (Electrical Circuit)
- roam
- · Replies 28 ·
Integrating for area under a curve.
- Darth Frodo
- · Replies 9 ·
I am an idiot, me. (Find the force of a tennis ball)
- Blablablabla
- · Replies 3 ·
Does alpha decay convert mass to kinetic energy?
- gbaby370
- · Replies 6 ·
Maximum spring compression with friction on ice
- DiaperBoy35
- · Replies 4 ·
How Does Launch Angle Affect the Horizontal Distance in Shot Put?
- wbetting
- · Replies 3 ·
Force on Current-Carrying Conductor
- cocololo
- · Replies 3 ·
Which Bottle Rocket Fuel Achieves Higher Altitudes?
- AstroPascal
- · Replies 1 ·
How Do You Calculate Distance and Direction Using Vector Coordinates?
- geoff18
- · Replies 13 ·
Statics Problem: hanging disk, tensions etc.
- jstone326
- · Replies 1 ·
[Concept] Why is potential 0 when electric field isn't?
- Sean1218
- · Replies 4 ·
Rolling without slipping - too many equations
- jason.farnon
- · Replies 16 ·
Vector diagram - particle collision
- jsmith613
- · Replies 15 ·
Understanding Doppler Formula: Solving for Vs and Equivalencies
- chiuda
- · Replies 5 ·
Alternating Current Wheatstone-like Bridge
- ke7q
- · Replies 1 ·
Why is heliocentrism preferred if geocentrism is mathematically equivalent?
- Harrisonized
- · Replies 9 ·
Combination of Capacitors and Equivalent Capacitance
- arl146
- · Replies 7 ·
Basketball hangtime physics problem
- wbetting
- · Replies 1 ·
Two Dielectric Materials in Capacitor
- arl146
- · Replies 1 ·
How Fast Must the Hammer Move to Ring the Bell at the Carnival?
- Parzival
- · Replies 11 ·
Calculating Force on Cushioned Legs from Dropped Mass
- btbam91
- · Replies 1 ·
Find the equivalent impedance of an infinite series of resistors and capacitors
- kryzlof
- · Replies 5 ·
Vectors - crossing a river w/ given flow
- Sparky_
- · Replies 6 ·
Centripital F. : Solve for Velocity given ax and r
- subzero800
- · Replies 2 ·
Show that Q is proportional to V for capacitor
- jsmith613
- · Replies 3 ·
Electric potential at a distance r from a non-conducting sphere
- Wheelwalker
- · Replies 7 ·
Deceleration during braking is not constant
- cholo1968
- · Replies 1 ·
Find momentum of particle in B field
- zezima1
- · Replies 1 ·
How Do You Calculate the Phase Angle in an LCR Circuit?
- Sleepy_time
- · Replies 3 ·
Lifting a prism; coefficient of friction
- kate12
- · Replies 2 ·
A man walks on a straight road from his home to market 2.5km
- reshmi
- · Replies 1 ·
How does a thin sheet of aluminum impact capacitance in a circuit?
- aimiit
- · Replies 3 ·
Finding magnitude direction and speed of a plane trip
- wbetting
- · Replies 1 ·
Solving an ODE-45 from Euler-Lagrange Diff. Eqn.
- Axecutioner
- · Replies 3 ·
Calculate the KE of an electron emitted from the beta decay of a neutron
- chirumu
- · Replies 1 ·
What constants are known when a ball rolls off a table?
- jillime
- · Replies 3 ·
Max. n for TIR - air-medium interface
- psyphy
- · Replies 6 ·
What are the limitations to the equipartition theorem
- imagemania
- · Replies 1 ·
What is the acceleration of the spore during the launch and speed reduction?
- wbetting
- · Replies 1 ·
Maximum impulse a human can withstand?
- bduffany
- · Replies 3 ·
Who Crosses the River Faster, Boy A or Boy B?
- daysrunaway
- · Replies 3 ·
Relationship between the angle and time of a tilted falling object
- bug13
- · Replies 13 ·
How Does a Neutral Metal Ball Interact with a Nearby Point Charge?
- funoras
- · Replies 5 ·
Force per unit length between two parallel whires of +/- X volts
- kryzlof
- · Replies 1 ·
Wave Velocity: Improper approach, or incorrect differentiation?
- rusty65
- · Replies 1 ·
Determine the thermal effieincy of a heat transfer process
- daftpunk
- · Replies 4 ·
Velocity of Transverse Waves problem
- rusty65
- · Replies 4 ·
A circuit problem involving voltage/current.
- thoradicus
- · Replies 4 ·
Solving gravitational force between two 70 kg masses 1 m apart
- S1lent Echoes
- · Replies 7 ·
Force of Spring and Potential Energy of Spring Pushing a Box
- RadiantL
- · Replies 3 ·
How to Configure a Circuit for a 1600 W Radio Device with Given Resistors?
- τheory
- · Replies 3 ·
Pith ball and parallel plate capacitor prolem
- nyxsilverjk
- · Replies 13 ·
How do I calculate the length of a rod?
- exibo177
- · Replies 5 ·
How to find terminal velocity from experimental data?
- greco117
- · Replies 7 ·
Calculating Wattage Rating in Series/Parallel Circuits
- nyxsilverjk
- · Replies 22 ·
Collision distance and speed with braking police car
- wbetting
- · Replies 1 ·
Why is explosion energy added to initial kinetic energy, not final?
- physics.geeks
- · Replies 1 ·
How Does Adiabatic Wind Affect Temperature Changes in the Rocky Mountains?
- EmBista
- · Replies 2 ·
Finding coefficient of friction on a rough section of a ramp
- tmb1986
- · Replies 1 ·
Oscillation - car losing contact with bridge
- jsmith613
- · Replies 4 ·
Speed and Direction of Electron orbiting within a Solenoid
- rodanme
- · Replies 3 ·
Calculating Centripetal Acceleration of a 7200 RPM Hard Drive
- goracheski
- · Replies 1 ·
Why is Random Error Higher than Literature Error?
- huey910
- · Replies 1 ·
If a body is rotating at uniform angular velocity then in t sec , the angular displac
- manal950
- · Replies 2 ·
Mechanics Question for a diver jumping off a Board
- muzamilg
- · Replies 1 ·
Find velocities after elastic collision of 60 kg and 220 kg balls
- Mushroom79
- · Replies 16 ·
Torque/moment of beam in equilibrium
- Hyperfluxe
- · Replies 5 ·
Calculating quality of steam after isentropic expansion
- Ortix
- · Replies 7 ·
Heat transfer, energy needed to heat house
- Leaffy
- · Replies 3 ·
Solving Relative Momentum and Rest Mass Confusion
- dlucia
- · Replies 2 ·
A motor takes Ts to cover the distance ?
- manal950
- · Replies 3 ·
Newton's Second Law finding value of force problem
- goomer
- · Replies 4 ·
Can You Solve These Linear Equations for Variables a and w0?
- manal950
- · Replies 3 ·
Visualization of uncertainty principle [graphs]
- moniqu3
- · Replies 3 ·
Rotational Motion, angular velocity
- jimla
- · Replies 5 ·
Finding angle between two towns and antenna height
- arielsnow
- · Replies 5 ·
Finding Earth's radius from sunset timing with elevated viewpoint
- TrevorRyan
- · Replies 13 ·
Potential of spherical and non-spherical mass distributions?
- Schmetterling
- · Replies 3 ·
Questions in linear motion and rotating motion
- manal950
- · Replies 25 ·
Simple Harmonic Motion, spring periods
- Navras
- · Replies 3 ·
When does the spacecraft reach a distance of 3 AU from the sun?
- tempneff
- · Replies 7 ·
Finding sphere radius from mass and density
- eggman100
- · Replies 5 ·
How Fast Is the Skier Going Before She Lands?
- Parzival
- · Replies 23 ·
Find Average Power Given Mass and Velocity
- Snape1830
- · Replies 3 ·
Velocity due to increasing mass
- fondrika
- · Replies 1 ·
Individual Spherical Capacitors
- Saitama
- · Replies 16 ·
Finding spring constant and unstretched length in SHM
- roam
- · Replies 1 ·
How Do You Calculate Wave Properties in a String Experiment?
- charmedbeauty
- · Replies 1 ·
What do the subscripts fpq and fqp mean in coupled oscillators and waves?
- roam
- · Replies 2 ·
Two-lens system with virtual image from first lens
- bob778111
- · Replies 1 ·
Basic Kinetics Question: Calculate Velocity on a Circular Path - Homework Help
- Femme_physics
- · Replies 5 ·
Rotational mechanics sphere collision problem
- shreyashebbar
- · Replies 13 ·
Spring stiffness calculation - Curved beam
- Vasan
- · Replies 6 ·
Find the coordinate where net electric field is 0
- 1MileCrash
- · Replies 1 ·