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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What's the relationship between T = r X F and T = I(alpha)?
- mrbill
- · Replies 2 ·
Integration of Parts Calculus help
- SEG9585
- · Replies 3 ·
Find Initial Acceleration of Rod's Center of Mass with Newton's 2nd Law
- jstealth03
- · Replies 2 ·
Burning wood with magnifying glass
- einai
- · Replies 2 ·
Are We Heavier at Midnight Due to the Sun's Gravity?
- warehouse54
- · Replies 2 ·
How Does Compound Interest Affect Birthday Savings Over 20 Years?
- Johnny Leong
- · Replies 4 ·
Is there an exact solution for (7-x)ln(x)?
- dav2008
- · Replies 2 ·
A long straight wire carries a (+) current of two amps in a direction
- athenaroa
- · Replies 2 ·
Water slide energy dissipation problem
- psruler
- · Replies 5 ·
Gravitational Field Strength of Sun vs Moon at Earth
- Invisible
- · Replies 10 ·
Probability mutual exclusive homework problem
- Sombra
- · Replies 2 ·
How would I calculate the g's felt?
- SsUeSbIaEs
- · Replies 6 ·
How fast is the center of mass of a tissue paper roll when its radius is 0.14cm?
- Houyhnhnm
- · Replies 5 ·
Impedance of circuit with capacitor
- athenaroa
- · Replies 2 ·
Solving Conceptual Issues of a Square Wire Loop Problem
- AshleyF708
- · Replies 2 ·
Calculating Torque for a Horizontal Rod with a Hanging Weight
- Alan6585
- · Replies 10 ·
Can You Move Someone Ten Feet Without Motors, Wheels, or Human Propulsion?
- micron
- · Replies 16 ·
Calculating Charge Q in an Electric Field at Point P: 50 cm from Source Charge Q
- NIT14
- · Replies 4 ·
What is a Streamlined Design Engine and How Does it Improve Fuel Economy?
- delta_mu
- · Replies 3 ·
How Can You Move Ten Feet Without Motors, Wheels, or Human Propulsion?
- micron
- · Replies 8 ·
Can a Nuclear Reactor Produce More Energy than it Consumes?
- delta_mu
- · Replies 4 ·
Investigating a Rolling Ball-Bearing
- Magg$
- · Replies 2 ·
Factors affecting cellphone signals
- spill
- · Replies 2 ·
What Is the Least Current to Prevent a Cylinder from Rolling Down an Incline?
- Saffire
- · Replies 2 ·
Why Does a Gyroscope's Spin Axis Maintain Its Direction?
- powerball
- · Replies 2 ·
Tangential/radial/total acceleration & angle
- Klion
- · Replies 4 ·
Calling All Angels: Questions on Gold, Buoyancy & More
- holly
- · Replies 6 ·
What is an extension in a statics problem?
- philipc
- · Replies 3 ·
Silly question about redshift, relativity
- billy_boy_999
- · Replies 11 ·
Calculating Length of Parametric Curves
- sonya
- · Replies 10 ·
How much mass can a brass spring hold without becoming permanently bent?
- psruler
- · Replies 3 ·
Calculating Automobile Crankshaft Torque for Beginners
- NanoTech
- · Replies 2 ·
Questions on Internal Energy and Specific Heat Capacities
- Auron87
- · Replies 3 ·
What Are the Key Factors Influencing Shallow Water Wave Velocity?
- deimos
- · Replies 4 ·
Strange radioactivity question. fast
- EasyStyle4747
- · Replies 4 ·
Transformer engineering problem
- neraketam
- · Replies 3 ·
Calculating Shunt Resistor for Galvanometer to Ammeter Conversion
- Magna1
- · Replies 4 ·
Does Scale Affect the Angular Velocity of Ferris Wheels?
- celect
- · Replies 2 ·
Momentum and energy disagreement
- ShawnD
- · Replies 8 ·
Line Integrals: Evaluating with Respect to Arc Length
- wubie
- · Replies 2 ·
Forces involved in spring-pulley system
- Luminous Blob
- · Replies 6 ·
Solving Transfer Matrix for Total Internal Reflection
- Norman
- · Replies 2 ·
Electrical Energy and Capacitance
- ScoutFCM
- · Replies 7 ·
Solving Two Charge Problems - Coulombs and Electrons
- Skipperchrldr
- · Replies 2 ·
KsP calculations with solubility values
- London Kngiths
- · Replies 2 ·
Integration of rational functions
- Kuja
- · Replies 2 ·
Is Electrostatic Potential Zero When Electric Field Is Zero?
- burak_ilhan
- · Replies 6 ·
Electricity and Magnetism problem
- retupmoc
- · Replies 2 ·
What's Wrong with My SHM Calculations?
- nonzee
- · Replies 4 ·
Finite Math Help: Similarities, Correlation Coefficient & Determination
- tofu
- · Replies 2 ·
Calculating moment of inertia for a uniform rod of mass
- Luminous Blob
- · Replies 2 ·
How Can I Better Understand Physics Waves for 9th Grade?
- killjoy
- · Replies 3 ·
Solve 37 x 0.785 w/ Logarithms (Base 10, e & 5)
- chemical
- · Replies 2 ·
Are My Buoyancy Questions Really That Confusing?
- holly
- · Replies 35 ·
Equal sign with a triagle above it?
- frankR
- · Replies 2 ·
How Does Charge Distribution Affect Electric Field in Nested Spheres?
- frznfire219
- · Replies 21 ·
Magnetic Force on segment of wire
- Aerospace
- · Replies 2 ·
A question about university level physics and math.
- AJ
- · Replies 3 ·
Net Force on a Charge at a Given Point from Two Other Charges
- steve92595
- · Replies 7 ·
Charged particles in magnetic field
- Aerospace
- · Replies 2 ·
Electrical Potential Energy Problem
- Embermage
- · Replies 2 ·
Deriving Wien's Displacement Law from Planck's Law
- gnome
- · Replies 12 ·
Calculating Minimum Stopping Distance for a Car on a 15 Degree Incline
- cristina
- · Replies 2 ·
How Does Current Direction Affect Magnetic Force Between Parallel Wires?
- eku_girl83
- · Replies 2 ·
Bathroom scale on one of the Earth's poles
- psruler
- · Replies 2 ·
What is the acceleration of the block?
- Beretta
- · Replies 2 ·
Explain the difference of hyodrogen ions
- chemical
- · Replies 2 ·
What Is the Radius of a Banked Turn in Airplane Flight?
- cristina
- · Replies 8 ·
Electric Potential and Forces in Spherical Raindrop Interactions
- broegger
- · Replies 3 ·
How do changes in charge and distance affect the force in Coulomb's Law?
- UrbanXrisis
- · Replies 3 ·
Is the Calculated Density of the Steel Ball Correct?
- Cummings
- · Replies 3 ·
Coulomb's Law: Examining Forces and Charges
- UrbanXrisis
- · Replies 4 ·
How Do You Calculate the Number of Coulombs in a Glass of Water?
- LTech221
- · Replies 2 ·
Understanding the Missing Stages in Simplifying Expressions
- exequor
- · Replies 2 ·
Solving Resistivity Equations: Step-by-Step Guide
- JoneS
- · Replies 2 ·
Find the Solve the Problem with Force!
- cool2think
- · Replies 3 ·
How Do Magnetic Forces Affect Parallel Current-Carrying Wires?
- eku_girl83
- · Replies 2 ·
Determining Resultant of Concurrent Forces: Law of Cosines
- RingWraith2086
- · Replies 2 ·
Formula for centripetal acceleration
- cookiemonster
- · Replies 4 ·
What are the eastern components of the Earth's magnetic field in this city?
- Magna1
- · Replies 2 ·
Is the Moon's linear momentum p constant?
- Oripmav
- · Replies 2 ·
Conservation of energy problem.
- PhysicsPhun
- · Replies 5 ·
Two gravitational force questions
- psruler
- · Replies 8 ·
A Spring in a Conservation of Energy Problem?
- PhysicsPhun
- · Replies 3 ·
Jerk of the point of contact of a ball rolling on a flat surface
- kuba
- · Replies 2 ·
J j thomson's previous experiment
- gnome
- · Replies 2 ·
How Is Average Velocity Half of Final Velocity in Constant Acceleration?
- xxpsychoxx
- · Replies 5 ·
Enthelp of a neutralization reaction
- decibel
- · Replies 6 ·
Help Solve Induction Trouble Problem
- AshleyF708
- · Replies 2 ·
What is the Correct Formula for Calculating Speed in a Basic Generator?
- mrbling
- · Replies 2 ·
How Does Changing Gas Quantity and Temperature Affect Pressure?
- Alethia
- · Replies 10 ·
Prove: An, En, On --> L iff An --> L
- stunner5000pt
- · Replies 2 ·
Is There a Surjective Function from Z+ to Z?
- phoenixy
- · Replies 3 ·
Solve Gas Law Problems: Volumes, Pressures, & Temperatures
- DoctorReynaldo
- · Replies 2 ·
I in applying Netwon's law of inertia
- delta_mu
- · Replies 5 ·
How Do Birds Control Their Falling Speed and Cars Stop Quickly?
- Big Rudy
- · Replies 3 ·
Cannon Recoil Speed: Solve the Doubt
- Xamfy19
- · Replies 2 ·
How Strong is the Electric Field Between Two Charged Plates?
- tandoorichicken
- · Replies 2 ·
Pendulum with Water-Filled Sphere: Does it Change the Period?
- Physicsisfun2005
- · Replies 2 ·
Electric field problems literally
- robert135
- · Replies 3 ·