Along, thin straight wire with linear charge density λ runs down the center of a thin, hollow metal cylinder of radius r. the cylinder has a net linear charge density 2λ. assume λ is positive. find expressions for the magnitude of the electric field strength inside the cylinder, r

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

Distinguish between linear momentum and angular momentum

Which best describes the difference between internal and thermal energy?