Introductory Physics Homework Help Forum

Frictional forces between two blocks (one over the other)

Cylinder Rolling Down an Inclined Plane

Thin ring rolling down a moving ramp

Static Equilibrium Problem Dealing with Torque

Find Aphelion of an elliptical orbit given Perihelion and Orbital Period

Force on 3 current carrying wires

Organizing Your Physics Calculations: Tips and Examples

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

I=mv^2/w^2-2mgh/w^2Find Inertia of Wheel for Block & Pulley Homework

Comparing ωxr and rxω in Vector Calculations

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?

Finding spring constant by comparing to another spring

Lab Activity: Conservation of Momentum

Centripetal Force - maxium downforce for no skidding

Resistance of spheroid like object

• Poll

Find work given mass, acceleration, and time.

Dropping a penny off a skyscraper.

Velocity of CM of Rod if struck below CM ?

Vector & Scalar Homework: Base Camp to Lake B

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

Energy physics help: Finding spring constants

Magnetic Force on Various Sides of Spinning Loop?

Static friction vs kinetic friction (Very simple question)

What Causes the Colors in Soap Bubbles?

Finding Theta: Aiming a Gun Between Two Ships

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?

Rearranging equations-need clarifying & pointing in the right direction (long)

Magnetic Dipole Moment of an Electron

Uniform Circular Motion Bicycle Tire

Help with 2 questions quickly for exams please

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

Torques on a Ruler Homework: Find Unknown Mass

Calculating Normal Force and Acceleration in Dynamics Physics - Urgent Help

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

Explaining the Rainbow Colors in Thin Films: Interference Homework Problem

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)

Horrible Homework question on alternating currents

Calculating Speed Along Sides of Right Angle at Intersection with Ruler

Uniform Circular Motion in a Watch

Solve Diffraction Grating Homework: 500 nm, 1st Order, 20o Angle

Volume of water a ship must displace to float

Fisherman saling up stream and drops cork travels back .

What Is the Magnetic Flux through a Loop in a Solenoid?

Does Electromotive Force Have a Direction?

How Much Does a Spring Compress Under a 10-N Force?

Change of momentum of a crate within a system

Mechanics problems involving velocity,acceleration and gravity

Finding Force of Friction - Tug of War Problem

Need help with finding the Kinetic energy of a satellite

Current in circuit with resistor and two batteries

Kinematics question projectiles with vector components (baseball player Q)

What Fraction Of Her True Weight Was Indicated?

Planck length - what is it really?

Calculating Potential Difference in a Capacitor with Resistors Circuit

What is the most efficient way to solve a wheel and axle system problem?

Why Is Friction Opposite to Wheel Acceleration in Rolling Motion?

Why Does Heat Stop Flowing When Q=TS in Thermal Equilibrium?