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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Construct a 25 ohm resistance from a boz
- cseet
- · Replies 6 ·
How Does a Toroidal Inductor Affect Velocity in a Motional EMF Setup?
- dreadstar
- · Replies 1 ·
Calculating Frequency of Sound Wave in Water
- jazzchan
- · Replies 2 ·
Why Are Gravitational and Centripetal Forces Equal in Moon's Orbit?
- dura
- · Replies 6 ·
Multiple physics questions on vectors, waves, temperature and photons
- EIRE2003
- · Replies 4 ·
Volume of revolution for y=x-x³ from 0 to 1 about y-axis
- Zurtex
- · Replies 7 ·
Static friction on a 30 degree ramp
- dura
- · Replies 5 ·
Where is the Center of Gravity for a System of Attached Balls?
- lollypop
- · Replies 9 ·
Finding nontrivial solutions when determinant equals zero
- discoverer02
- · Replies 10 ·
Integration sines and cosines question
- ilikephysics
- · Replies 2 ·
Conservation of Energy Supp. 2
- cristina
- · Replies 4 ·
Find the work done on the block by the spring
- cristina
- · Replies 4 ·
Potential Energy function problem
- cristina
- · Replies 7 ·
Optimal Rear-View Mirror Width Calculation for Improved Car Safety
- mustang
- · Replies 2 ·
How to choose a physics toy for an assignment and explain its principles
- Miyu
- · Replies 5 ·
Supplementary Prob 1 Conservation of Energy.
- cristina
- · Replies 6 ·
What's the relationship between T = r X F and T = I(alpha)?
- mrbill
- · Replies 2 ·
Integration by parts with sin³(3x)cos³(3x) and tan⁴(4x)
- 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 ·
Finding P(A or B) when A and B are independent
- 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 ·
Ball bearing rolling down a ramp of varying heights
- 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 ·
Can you fake gold density by filling a drilled cavity with lighter material?
- holly
- · Replies 6 ·
What is an extension in a statics problem?
- philipc
- · Replies 3 ·
Does gravitational redshift affect measurements of distant galaxies?
- 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 ·
Finding torque from crankshaft power and rotational speed
- NanoTech
- · Replies 2 ·
Questions on Internal Energy and Specific Heat Capacities
- Auron87
- · Replies 3 ·
How does wave velocity relate to water depth?
- deimos
- · Replies 4 ·
Alpha particle detection rate vs distance from source
- 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 ·
Transfer matrix for s-polarized wave with 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 ·
How to integrate a rational function with repeated quadratic factor
- 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 ·
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 ·
Using logarithms to compute 37 × 0.785 in bases 10, e, and 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 ·
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 ·
Block pushed up frictionless 25° incline by 100N force
- 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 ·
How does force change in Coulomb's law when charges or distance change?
- UrbanXrisis
- · Replies 4 ·
How Do You Calculate the Number of Coulombs in a Glass of Water?
- LTech221
- · Replies 2 ·
Missing steps in simplifying an expression
- exequor
- · Replies 2 ·
Getting wrong results for resistivity calculations from V-I graph
- 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 ·
Child sliding down playground slide with friction losses
- PhysicsPhun
- · Replies 5 ·
Two gravitational force questions
- psruler
- · Replies 8 ·
A Spring in a Conservation of Energy Problem?
- PhysicsPhun
- · Replies 3 ·