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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[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 ·
Heliocentrism vs Geocentrism: Is the Earth Really Orbiting the Sun?
- 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 ·
Simple Projectile Motion Help: Finding the Height of 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 ·
Help Solving Gravitational Constant Equation
- 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 ·
Help with a police car distance physics problem
- wbetting
- · Replies 1 ·
Solving Energy & Momentum Homework Problem on Mass 8.13 kg
- physics.geeks
- · Replies 1 ·
How Does Adiabatic Wind Affect Temperature Changes in the Rocky Mountains?
- EmBista
- · Replies 2 ·
Friction Coefficient Homework: Find Speed of Block
- 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 ·
Momentum & Elastic Collision: 2 Balls, Velocity After Collision?
- 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 ·
How Do You Solve Complex Trigonometry Problems in Physics?
- arielsnow
- · Replies 5 ·
Really weird physics problem, can you help me?
- 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 ·
Working out radius of sphere using Mass&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 ·
Solve Oscillations (SHM) Homework Statement: 76.7628 N/m & 51.0543 m
- 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 ·
Calculating Distance and Magnification for Two Lenses | Homework Example
- 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 ·
Which Method Requires Less Force to Move an Object 1.2m?
- World
- · Replies 4 ·
Parallel plate capacitor by an electric field between the plates
- SMSeeds
- · Replies 1 ·
Calculating the force during a collision.
- mnaik3
- · Replies 1 ·
Finding volume by using cross section?
- exibo177
- · Replies 4 ·
Where Should I Place My Telescope to Observe VY Canis Majoris?
- Johnboy
- · Replies 6 ·
How can i find breaking strength of steel, if it's possible at all?
- exibo177
- · Replies 6 ·
Total energy of mass spring system?
- Questions999
- · Replies 3 ·
Sound, phase difference and number of minima
- thoradicus
- · Replies 3 ·
Center of mass of a tank (military vehicle)
- fondrika
- · Replies 9 ·
What is a Dual Vector in Bra and Ket Notation?
- Harrisonized
- · Replies 1 ·
Quantum Mechanic. penetration distance and probability Density
- bayan
- · Replies 1 ·
Quantum tunneling and radioactive decay.
- bayan
- · Replies 3 ·
CR Transient Problem: Calculate VC at 3 Times
- ZxcvbnM2000
- · Replies 5 ·
Fnet>10.5What causes the block to not initially move up or down the incline?
- rash92
- · Replies 5 ·
Physics problem involving displacement of car
- wbetting
- · Replies 3 ·