Answer:A pendulum illustrates the conservation of energy. The pendulum has the most potential energy - the energy of position or stored energy - when it is highest above the ground. It has the most kinetic energy - the energy of motion - when it is moving the fastest. As the pendulum swings downward, the potential energy changes to kinetic energy. As it swings upward, the kinetic energy changes to potential energy. The back-and-forth swinging of a pendulum is simple harmonic motion - motion that repeats periodically. The period of a pendulum is the time needed for one complete swing back and forth. This period is constant; it changes only if the length of the pendulum is changed. Ask student to time the periods of their pendulums when the pendulums swing through a longer distance (larger arc) or shorter distance (smaller arc). They will discover that the periods are the same. Have the students then change the mass by adding one or more washer to their pendulum. When the students time the periods, they discover that the period does not change if the mass is changed. Ask students to experiment to find what will change the period of the pendulum. Students will discover that the period will change if the pendulum’s length is changed.
Explanation:
The Fertile Crescent is referred to as the area between the Euphrates River and the Tigris River, as well as the Nile River.
The Fertile Crescent is located in North-Eastern Egypt, through Israel, to the negev of Turkey, and stretches in a slanted area to the border of the Persian Gulf.
hope this helps
A slave was not a citizen but rather the property of an owner
The right term that is used usually to describe a region just beyond or at the edge of a settled area is a <u>Frontier</u>, because in that context, a frontier is a place or imaginary line that limits a region, territory, location, city or a country extension, and where sometimes the frontiers are located further or at the border of a settled area.
The correct answer is a metaphor. A metaphor is a figure of speech that uses something to refer to something else. Usually the two things are quite different things but their qualities are somewhat similar in a literal or figurative sense. In this instance "a radiant star" is just a giant conglomerate of burning gases in outer space and "love and brotherhood" are a human emotion and an ideal. However, our sun is a radiant star and it gives us warmth and life and love and brotherhood irradiate human beings with emotional warmth and life and that is why the metaphor is accurate.
