Introductory Physics Homework Help Forum

Degrees of freedom for a metal crystal

Have Inertia Tensor for Object. Find It for Object after Rotation

Average Back EMF Induced in Coil in Loudspeaker

Calculating Force (magnitude and direction) on a proton

Finding the zero gravitational force point between Earth and moon

Coulomb's law and negative charges

What is the acceleration of masses in an Atwood machine with a rotating pulley?

What Is the Direction of Current in a Loop Near a Current-Carrying Wire?

Radiation calculation confusion

Thought experiment with two point sources of light

What is the Number of Turns in the Secondary Coil of a Transformer?

Magnetic field in the middle of the plate

What is the equilibrium distance between atoms in a two-atom molecule?

Solving for Potential Difference Between (4,6,3) and (8,1,6)

Work Energy Theorem with Kinetic Friction and External Work

Frictional forces between two blocks (one over the other)

Solid cylinder rolling down a ramp without slipping

Thin ring rolling down a moving ramp

Finding tension in string A for a crane with torque equilibrium

Find Aphelion of an elliptical orbit given Perihelion and Orbital Period

Force on 3 current carrying wires

How do you organize written solutions to physics problems?

How Is Kinetic Energy Calculated in a Rolling Sphere on a Ramp?

Direction of frictional force in a bicycle

What are the formulas for finding angular and linear speed on a merry-go-round?

How Does Grounding Affect Charge Distribution on a Conductor?

Voltage drop across a battery, a capacitor and 2 light bulbs

AC circuit with two components given phase angle

How Do You Calculate Amplitude and Time Period in SHM Problems?

Calculating Velocity in Circular Motion

Moment of inertia of wheel lifting a block via string

When to use ωxr versus rxω in vector cross products?

How Do You Calculate the Kinetic Energy of a Rotating CD?

What is the Angular Speed of Tires with a Radius of 31 cm and a Speed of 12 m/s?

Charged Particle Moving in Magnetic Field

A current-carrying circular loop placed next to a long straight wire

Dropping marble in space station riddle

Spectrometer Operation Analysis

Why Does io'' Equal Zero in Parallel Resistor Circuits?

Find Stretched Length of Spring - 8.5kg Board at 50°

Why are gases more viscous at higher temps?

What Force Acts on a Marble at Point Q in a Loop-the-Loop?

Spring constant with equal max velocity and 3:1 amplitude ratio

Conservation of momentum lab with smart pulley and two carts

Centripetal Force - maxium downforce for no skidding

Resistance of spheroid like object

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Find work given mass, acceleration, and time.

Dropping a penny off a skyscraper.

Velocity of CM of Rod if struck below CM ?

Finding distance and direction from Lake B to base camp using vectors

Rot. + Trans. Motion: Conservation of E

Why potential energy alone, not kinetic energy?

Conservation of linear momentum particle accelerator

How Does Changing the Angle of a Third Polarizer Affect Light Intensity?

Solving for linear mass density of a string

Finding spring constants from an energy graph

Magnetic Force on Various Sides of Spinning Loop?

Why can an object move at constant velocity if force equals kinetic friction?

What Causes the Colors in Soap Bubbles?

Gun angle to hit a ship traveling in opposite direction

How Much Longer Does It Take to Stop When Speeding in a School Zone?

Rearranging Equations to y= mx + b

What is the correct way to separate light into its component colors?

Difficult Velocity/Travel/Wind problem

How to Find Acceleration with Given Time Over Two Equal Segments?

Finding temperature increase from falling water energy loss

Magnetic Dipole Moment of an Electron

Uniform Circular Motion Bicycle Tire

Energy transfer from boiling water and refrigerator cooling

Calculating Tension in a Horizontal Bar Connecting Two Halves of a Ladder

How Does the Biot-Savart Law Apply to a Right Angle Wire Configuration?

Newton's Laws Finding Applied Force and other Forces

Finding Kinetic Coefficient of Friction

Finding unknown coin mass on a balanced ruler using torque

Normal force and acceleration on a 1.0 kg water bottle lifted with 4.0 N

How Fast Was the Car Going Before Skidding to a Stop?

Why do thin films show rainbow colors instead of light and dark bands?

Total Current in RLC Parallel Circuit

Finding the Maximum Current in an LC-only Circuit

Magnitude and direction of the Electrostatic Force

Conceptual question regarding inductors and capacitors

Calculate the 4th line of the Balmer Series

How Do You Calculate the Index of Refraction in a Prism?

Understanding centripetal force and free body diagram

Physics/Fluid Mechanics Problem - badly

Im trying to work out the acceleration and ave velocity for a model helicopter

Waves and Superposition problem

Understanding Scalar and Vector in 2-D Uniform Motion Problem

How Is the Weight of a Bird Calculated When It Sits on a Kite?

Calculating Mass Moment of Inertia for a Roller Door

Finding permability of free space from Magnetic Field vs. Current graph

Thermodynamics singlestep - multistep gas compression

I figuring out the kg of ice can you melt

Dynamics problems(force and friction and such)

Finding peak voltage, RMS voltage, period and frequency from oscilloscope trace

Calculating Speed Along Sides of Right Angle at Intersection with Ruler

Uniform Circular Motion in a Watch

Diffraction grating spacing with 500 nm wavelength

Volume of water a ship must displace to float

Fisherman saling up stream and drops cork travels back .