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One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

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.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?