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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Does shortening a pendulum increase its frequency?
- kevinnn
- · Replies 1 ·
Angular momentum of turntable problem
- Vagabond7
- · Replies 5 ·
What is the formula for calculating momentum using i and j vectors?
- Sneakatone
- · Replies 19 ·
Finding contact forces between two pushed carts
- Felafel
- · Replies 4 ·
How to find the turns ratio between the primary and secondary coils.
- nontradstuden
- · Replies 3 ·
Simple harmonic motion energy conservation problem
- al_famky
- · Replies 4 ·
How Wide is the Central Bright Fringe in Single Slit Diffraction?
- Mr.Sure
- · Replies 2 ·
Gauss's Law - field of infinite plane sheet
- ZedCar
- · Replies 8 ·
Square Loop Moving Through Varying Magnetic Field
- trevor51590
- · Replies 8 ·
How Do Newton's Third Law and Force Calculations Apply to Hockey Players on Ice?
- VidsEpic
- · Replies 7 ·
Magnetic field in cylindrical conductor with exponential current density
- Renaldo
- · Replies 9 ·
How Many Hydrogen Atoms Minimum for All Emission Spectra from n=5?
- sid94
- · Replies 1 ·
How to culculate rms current using Watts in a Household Curcuit
- jmmckiss
- · Replies 3 ·
Kirchhoff's Voltage Law for PNP Transistor Circuit
- JJBladester
- · Replies 2 ·
Understanding Rotational Motion: Solving for Linear and Angular Acceleration
- jano.sl
- · Replies 1 ·
Finding charge of a capacitor in RC circuit
- Teptip
- · Replies 7 ·
Power to raise water from point A to B
- zeralda21
- · Replies 10 ·
Finding KE of a rod with two particles and angular velocity?
- rockchalk1312
- · Replies 3 ·
Find the Electric field strength at a point between two charges
- rocapp
- · Replies 3 ·
Finding Torque/Vert/Horiz. Forces for a Sign
- mmravunac
- · Replies 6 ·
How Can a Convex Mirror Project a Real Image?
- kmr159
- · Replies 2 ·
Electric Potential and bounds of integration
- timmastny
- · Replies 2 ·
How Is Kinetic Energy Calculated for a 1D Oscillating String with One End Free?
- Atheel
- · Replies 18 ·
How Do You Calculate the Inertia Tensor for a Complex Molecule?
- dinospamoni
- · Replies 5 ·
Calculating the buoyant force on a cube
- RichardCash
- · Replies 1 ·
Finding the moment(s) of inertia
- dinospamoni
- · Replies 2 ·
Equilibrium, Torque and Friction (hard)
- hms.tech
- · Replies 15 ·
Plane where clocks are synchronized in both frames
- LoadedAnvils
- · Replies 1 ·
Velocity of 10kg block pulled up a 30° incline with friction
- ms.cupcake
- · Replies 8 ·
Magnetic Fields from Currents in a Wire and a Cylindrical Shell
- maiad
- · Replies 3 ·
Time and Distance Calculations for Road Trip from Dallas to Chicago
- taraxrose
- · Replies 2 ·
Magnetic force on a lightning rod segment with peak current 250 kA
- Workout
- · Replies 1 ·
Having trouble with Helmholtz Coil Experiment Calculations
- Darthturkey
- · Replies 1 ·
Calculating Pressure at the Center of the Earth
- derravaragh
- · Replies 1 ·
Two Beams of Light Phase Difference
- dwk17
- · Replies 1 ·
Why does an electric motor at steady state have zero du/dt and dS/dt?
- wynnl
- · Replies 1 ·
Having trouble linearizing an equation
- Hedgehog1
- · Replies 1 ·
Static friction between two objects.
- Matt_h
- · Replies 1 ·
Electric Potential/Potential Energy problem
- jawhnay
- · Replies 4 ·
Aberration of Light: Understanding Transformation Equations for Coordinates
- BareFootKing
- · Replies 3 ·
Electrostatics not on the same axis
- Jabababa
- · Replies 7 ·
Max Friction Coefficient for 34° Factory Box Slide in 3.2s
- Robertoalva
- · Replies 3 ·
Differences Between Conducting and Nonconducting Spherical Shells
- Soccerdude
- · Replies 1 ·
What pot design heats up quickly and maintains temperature best?
- kevinnn
- · Replies 8 ·
Center of mass of a nitric acid (HNO3) molecule
- Sneakatone
- · Replies 14 ·
Why Are Commercial Jet Windows So Small?
- kevinnn
- · Replies 4 ·
When to use destructive or constructive equation for young's DS exp.
- Vickyvicksss
- · Replies 2 ·
Disintegration, special relativity
- Unicorn.
- · Replies 16 ·
Nonconducting Rod bent into Circle
- Soccerdude
- · Replies 1 ·
Sphere rolling in circular bowl
- WannabeNewton
- · Replies 2 ·
Energy and power production units
- few
- · Replies 1 ·
Why use 60° in the north 30° west vector problem
- cdahal
- · Replies 4 ·
Determine Current in a Solenoid
- rmcgovern
- · Replies 1 ·
Why is the gravitational force component in the x-direction -Fgrav*(x/r)?
- tomkoolen
- · Replies 2 ·
Determine the Velocity and Acceleration of the Rotating Rod
- Northbysouth
- · Replies 2 ·
Finding distance with force and final velocity using kinematics
- frozenguy
- · Replies 8 ·
Tension of a rope with a hanging mass and acceleration
- justadaftspark
- · Replies 15 ·
Calculating Velocity of a 10kg Bicycle Down a 150m Hill
- tuttyfruitty
- · Replies 2 ·
How do you solve for A in a critically damped oscillator problem?
- derravaragh
- · Replies 2 ·
Testing a proportional relationship without a graph
- GandhiReborn
- · Replies 2 ·
Hydrostatics - Why is the pressure force the same?
- theBEAST
- · Replies 3 ·
Two questions regarding linear momentum and conservation
- sankalpmittal
- · Replies 4 ·
How Do You Calculate Work Done to Overcome Friction on an Inclined Plane?
- ms.cupcake
- · Replies 8 ·
Why is the equation for delta t in a Michelson interferometer 2(L/v - L/c)?
- BareFootKing
- · Replies 2 ·
Two Block Problem: Solving for Forces (Parts b & c)
- ZanyCat
- · Replies 2 ·
Mercury height difference in U-tube attached to water pipe constriction
- Stretch999
- · Replies 7 ·
Finding current and Power delivered to Resistors
- elizabethrae
- · Replies 15 ·
Solving an Elastic Collision: Billiard Ball Momentum
- Juicy
- · Replies 3 ·
Find mass of Jupiter using Jupiter's moon, Io
- totallyclone
- · Replies 9 ·
Is ln(b(x-vt)) a solution to the one dimensional wave equation?
- OnceKnown
- · Replies 2 ·
Design a capacitor given power, time, voltage, and material properties
- GreenPrint
- · Replies 22 ·
What is the Velocity of a Shank with Attached Spring Striking a Button?
- doombanana
- · Replies 2 ·
Finding the range of speed on a banked curve without slipping
- totallyclone
- · Replies 4 ·
Whirling around a mass to find max force of tension
- totallyclone
- · Replies 2 ·
Finding the angle in a two-object inelastic collision
- Saendy
- · Replies 3 ·
Ampere's Law: Determining magnetic fields of a shell conductor
- Renaldo
- · Replies 2 ·
Problem regarding conservation of momentum in different systems
- ParrotPete
- · Replies 9 ·
Volume increase when water at 100°C converts to steam
- CAF123
- · Replies 8 ·
Vout of non-inverting adder circuit
- leroyjenkens
- · Replies 7 ·
Interference-Diffraction Pattern
- jaumzaum
- · Replies 6 ·
Bowling balls rolling up a ramp (conservation of energy)
- macaholic
- · Replies 14 ·
Using a stone to hunt down an animal with Centripetal Forces
- totallyclone
- · Replies 5 ·
Rolling Dynamics of a Rotating Cylinder on an Inclined Plane
- sergiokapone
- · Replies 33 ·
Resistive force question using T (tension)
- Siliconwombat
- · Replies 6 ·
How does the magnetic field from a static magnet transmit through space?
- Agkinnear
- · Replies 13 ·
How can I calculate the cooling time of a steel ball using thermal radiation?
- mstrakl
- · Replies 4 ·
Adiabatic steam turbine - find the second law efficiency
- theBEAST
- · Replies 2 ·
What is the electric potential energy of a proton
- Jabababa
- · Replies 2 ·
Calculating Weight Savings with Rectangular Section Beam
- MMCS
- · Replies 5 ·
Will the Safe Tip Over During the Emergency Stop?
- Drespar
- · Replies 2 ·
Magnetic field in a solenoid due to induced current in a coil
- CAF123
- · Replies 13 ·
Calculating Work Done by Electrical Force on a Moving Charge
- assaftolko
- · Replies 44 ·
Thermal resistances adding formula
- LinearMan
- · Replies 4 ·
Spring. (Potential energy and work done)
- coconut62
- · Replies 5 ·
Electric force between objects that are in brief contact
- Jabababa
- · Replies 5 ·
Solving a Suspended Ball in an Electric Field
- Jabababa
- · Replies 4 ·
Adding and subtracting electric fields from multiple charges
- Jabababa
- · Replies 1 ·
Momentum increased in electron-positron annihilation?
- Fosheimdet
- · Replies 4 ·
Understanding Bias in Semiconductor Devices
- cubejunkies
- · Replies 1 ·
A rubber ball is plugging a whole in bottom of tank. When will it fail
- DylanW
- · Replies 3 ·