What is the difference in the positioning of the Sun, Earth and moon for a lunar eclipse versus a full moon?

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.

Where do magnetic lines of force enter earth?

Coal contains energy. a. light b. kinetic c. chemical d. mechanical