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 Articles of confederation was weak in that it had no power to tax, it couldnot enforce the laws in the constitution and couldn't maintain an army.In this case, the central government couldn't accoplish anything because it had no authority as all powers were placed on the states.
The Shays rebellion demostrated to the governement the need for a strong central government, one that could stand firm on basis of its laws and the constitution.This was achieved through the first revolution under the new government that led to the formation of a central government with strong powers and control.
In addition to that, the articles of confederation was weak because it prohibited the collection of direct taxes on income and property yet these taxes were necessary to facilitate the payment of war debts and to enable the country have a working economy.Shays rebellion exposed these weaknessess fro correction.
Answer:
How does Cuba's government contrast with Costa Rica? In Cuba, the communist government rules the economy, which has not allowed many Cubans to prosper. Costa Rica, on the other hand, has a stable democracy and fewer poor people in the country.
Explanation:
Shakespeare's plays are all about questioning authority: kings are deposed; bad people (Iago) triump over good ones (Cassio); your parents don't always know best (the behaviour of the parents in Romeo and Juliet is the cause of all the trouble).
In the Middle Ages people had a general sense that God was in his heaven, and all was right with the world. In the Renaissance people started to ask if that was true.
Shakespeare is always asking difficult questions, which is a very Renaissance thing to do. And he never makes any direct reference to Christian faith in any of his plays:- religious doubt was also a very Renaissance characteristic.
He supported the Northern Securities Company.